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this video supplement is composed of

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this video supplement is composed of
 

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this video supplement is composed of
eight sequences each of which is

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eight sequences each of which is
 

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eight sequences each of which is
referenced in the report these dynamic

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referenced in the report these dynamic
 

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referenced in the report these dynamic
demonstrations primarily of f-106 being

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demonstrations primarily of f-106 being
 

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demonstrations primarily of f-106 being
flight vapor screen images obtained

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flight vapor screen images obtained
 

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flight vapor screen images obtained
using a rotating light sheet have been

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using a rotating light sheet have been
 

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using a rotating light sheet have been
designed to provide insight into the

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designed to provide insight into the
 

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designed to provide insight into the
process of developing quantifiable

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process of developing quantifiable
 

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process of developing quantifiable
results from this data for a complete

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results from this data for a complete
 

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results from this data for a complete
description of the image data is

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description of the image data is
 

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description of the image data is
analysis and the analyses of other types

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analysis and the analyses of other types
 

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analysis and the analyses of other types
of data as well the formal document

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of data as well the formal document
 

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of data as well the formal document
should be consulted

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this flight experiment was done in order

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this flight experiment was done in order
 

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this flight experiment was done in order
to examine vortical flow field

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to examine vortical flow field
 

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to examine vortical flow field
characteristics on a highly swept wing

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characteristics on a highly swept wing
 

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characteristics on a highly swept wing
at full-scale flight conditions an F

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at full-scale flight conditions an F
 

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at full-scale flight conditions an F
106b fighter interceptor airplane was

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106b fighter interceptor airplane was
 

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106b fighter interceptor airplane was
chosen because of its wide flight

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chosen because of its wide flight
 

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chosen because of its wide flight
envelope allowing data to be gathered

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envelope allowing data to be gathered
 

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envelope allowing data to be gathered
over a range of angles of attack and

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over a range of angles of attack and
 

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over a range of angles of attack and
Mach numbers as well as reynold numbers

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Mach numbers as well as reynold numbers
 

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Mach numbers as well as reynold numbers
the test aircraft was outfitted with

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the test aircraft was outfitted with
 

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the test aircraft was outfitted with
flow visualization equipment adapted

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flow visualization equipment adapted
 

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flow visualization equipment adapted
from wind tunnel experimentation a

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from wind tunnel experimentation a
 

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from wind tunnel experimentation a
rotating thin sheet of light was

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rotating thin sheet of light was
 

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rotating thin sheet of light was
produced by a mercury arc lamp with a

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produced by a mercury arc lamp with a
 

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produced by a mercury arc lamp with a
slit and lens arrangement this

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slit and lens arrangement this
 

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slit and lens arrangement this
illumination permitted the general

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illumination permitted the general
 

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illumination permitted the general
characteristics of the vortex made

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characteristics of the vortex made
 

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characteristics of the vortex made
visible by an trained seated vapor to be

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visible by an trained seated vapor to be
 

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visible by an trained seated vapor to be
recorded by two video cameras focused

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recorded by two video cameras focused
 

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recorded by two video cameras focused
over the wings upper surface flight

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over the wings upper surface flight
 

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over the wings upper surface flight
planning to obtain desired flight

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planning to obtain desired flight
 

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planning to obtain desired flight
conditions resulted in two types of

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conditions resulted in two types of
 

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conditions resulted in two types of
maneuvers 1g flight at various speeds

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maneuvers 1g flight at various speeds
 

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maneuvers 1g flight at various speeds
and altitudes and descending spiral

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and altitudes and descending spiral
 

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and altitudes and descending spiral
turns meteorological conditions were a

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turns meteorological conditions were a
 

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turns meteorological conditions were a
chief limiting constraint test

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chief limiting constraint test
 

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chief limiting constraint test
instrumentation onboard the aircraft was

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instrumentation onboard the aircraft was
 

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instrumentation onboard the aircraft was
restricted from flight through clouds or

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restricted from flight through clouds or
 

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restricted from flight through clouds or
precipitation flights could only be made

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precipitation flights could only be made
 

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precipitation flights could only be made
at night during periods of no moon

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at night during periods of no moon
 

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at night during periods of no moon
elimination to ensure sufficient

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elimination to ensure sufficient
 

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elimination to ensure sufficient
contrast to the video cameras the light

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contrast to the video cameras the light
 

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contrast to the video cameras the light
sheet and vapor generator were

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sheet and vapor generator were
 

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sheet and vapor generator were
controlled by an engineer in the aft

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controlled by an engineer in the aft
 

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controlled by an engineer in the aft
cockpit a video display showed the image

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cockpit a video display showed the image
 

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cockpit a video display showed the image
from either camera along with angle of

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from either camera along with angle of
 

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from either camera along with angle of
attack and light sheet position flight

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attack and light sheet position flight
 

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attack and light sheet position flight
data were recorded on board and

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data were recorded on board and
 

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data were recorded on board and
telemetered to a ground station at NASA

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telemetered to a ground station at NASA
 

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telemetered to a ground station at NASA
Langley the primary data collected was

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Langley the primary data collected was
 

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Langley the primary data collected was
video at night the wing was not visible

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video at night the wing was not visible
 

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video at night the wing was not visible
and only the light sheet and vapor

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and only the light sheet and vapor
 

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and only the light sheet and vapor
cross-section over the wing could be

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cross-section over the wing could be
 

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cross-section over the wing could be
seen on point data collection proceeded

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seen on point data collection proceeded
 

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seen on point data collection proceeded
with a light sheet sweep across the wing

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with a light sheet sweep across the wing
 

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with a light sheet sweep across the wing
as well as several discrete light sheet

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as well as several discrete light sheet
 

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as well as several discrete light sheet
locations for post flight analysis

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locations for post flight analysis
 

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locations for post flight analysis
additional flights were made during

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additional flights were made during
 

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additional flights were made during
daylight with an oil mixture painted on

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daylight with an oil mixture painted on
 

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daylight with an oil mixture painted on
the wing to show surface flow patterns

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an integrated computer process combining

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an integrated computer process combining
 

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an integrated computer process combining
image processing computer graphics and

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image processing computer graphics and
 

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image processing computer graphics and
photogrammetric reconstruction

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photogrammetric reconstruction
 

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photogrammetric reconstruction
techniques was utilized to aid in

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techniques was utilized to aid in
 

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techniques was utilized to aid in
three-dimensional visualization of

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three-dimensional visualization of
 

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three-dimensional visualization of
images produced by the rotating light

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images produced by the rotating light
 

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images produced by the rotating light
sheet accurate surface definition of the

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sheet accurate surface definition of the
 

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sheet accurate surface definition of the
aircraft was simulated through original

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aircraft was simulated through original
 

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aircraft was simulated through original
engineering drawings including geometric

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engineering drawings including geometric
 

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engineering drawings including geometric
description of wings fuselage and

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description of wings fuselage and
 

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description of wings fuselage and
vertical tail all of which were

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vertical tail all of which were
 

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vertical tail all of which were
collectively rendered to produce a

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collectively rendered to produce a
 

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collectively rendered to produce a
smooth three-dimensional model an

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smooth three-dimensional model an
 

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smooth three-dimensional model an
additional input into this environment

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additional input into this environment
 

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additional input into this environment
was a set of parameters describing the

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was a set of parameters describing the
 

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was a set of parameters describing the
placement of the two cameras on board

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placement of the two cameras on board
 

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placement of the two cameras on board
the f-106 be several targets were placed

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the f-106 be several targets were placed
 

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the f-106 be several targets were placed
upon the wing upper surface and record

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upon the wing upper surface and record
 

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upon the wing upper surface and record
that's measured to facilitate the

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that's measured to facilitate the
 

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that's measured to facilitate the
calibration of the cameras the WHA video

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calibration of the cameras the WHA video
 

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calibration of the cameras the WHA video
footage captured by the cameras in

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footage captured by the cameras in
 

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footage captured by the cameras in
flight provided only qualitative

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flight provided only qualitative
 

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flight provided only qualitative
information as to the size and placement

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information as to the size and placement
 

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information as to the size and placement
of vortices above the wing each image

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of vortices above the wing each image
 

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of vortices above the wing each image
had a perspective distortion produced as

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had a perspective distortion produced as
 

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had a perspective distortion produced as
the light sheet rotates away from the

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the light sheet rotates away from the
 

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the light sheet rotates away from the
stationary cameras to account for these

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stationary cameras to account for these
 

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stationary cameras to account for these
irregularities and extract quantitative

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irregularities and extract quantitative
 

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irregularities and extract quantitative
geometric information from the images a

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geometric information from the images a
 

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geometric information from the images a
photogrammetric reconstruction technique

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photogrammetric reconstruction technique
 

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photogrammetric reconstruction technique
was developed this technique map each

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was developed this technique map each
 

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was developed this technique map each
point in the image plane of a camera to

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point in the image plane of a camera to
 

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point in the image plane of a camera to
a precise location in the plane of the

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00:04:31,130 --> 00:04:31,140
a precise location in the plane of the
 

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00:04:31,140 --> 00:04:34,040
a precise location in the plane of the
light sheet camera orientation and

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00:04:34,040 --> 00:04:34,050
light sheet camera orientation and
 

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light sheet camera orientation and
imaging properties as well as white

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imaging properties as well as white
 

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imaging properties as well as white
sheet position and angle were measured

198
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sheet position and angle were measured
 

199
00:04:37,560 --> 00:04:41,240
sheet position and angle were measured
to provide accurate calculations once a

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00:04:41,240 --> 00:04:41,250
to provide accurate calculations once a
 

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00:04:41,250 --> 00:04:42,890
to provide accurate calculations once a
set of data for a specified test

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set of data for a specified test
 

203
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set of data for a specified test
condition was constructed the 3d

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condition was constructed the 3d
 

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condition was constructed the 3d
coordinate of any point in the flow

206
00:04:46,460 --> 00:04:46,470
coordinate of any point in the flow
 

207
00:04:46,470 --> 00:04:48,950
coordinate of any point in the flow
field could be determined vortex core

208
00:04:48,950 --> 00:04:48,960
field could be determined vortex core
 

209
00:04:48,960 --> 00:04:51,260
field could be determined vortex core
paths determined from image centroids as

210
00:04:51,260 --> 00:04:51,270
paths determined from image centroids as
 

211
00:04:51,270 --> 00:04:52,760
paths determined from image centroids as
well as the approximate reattachment

212
00:04:52,760 --> 00:04:52,770
well as the approximate reattachment
 

213
00:04:52,770 --> 00:04:55,010
well as the approximate reattachment
lines could be extracted and displayed

214
00:04:55,010 --> 00:04:55,020
lines could be extracted and displayed
 

215
00:04:55,020 --> 00:04:58,790
lines could be extracted and displayed
in simultaneously the same sequence of

216
00:04:58,790 --> 00:04:58,800
in simultaneously the same sequence of
 

217
00:04:58,800 --> 00:05:00,380
in simultaneously the same sequence of
operations was applied to the side

218
00:05:00,380 --> 00:05:00,390
operations was applied to the side
 

219
00:05:00,390 --> 00:05:02,690
operations was applied to the side
camera image such that both camera data

220
00:05:02,690 --> 00:05:02,700
camera image such that both camera data
 

221
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camera image such that both camera data
sets were combined into one interactive

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sets were combined into one interactive
 

223
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sets were combined into one interactive
display

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225
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selected frames from videotapes for each

226
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selected frames from videotapes for each
 

227
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selected frames from videotapes for each
flight were digitized on the data

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flight were digitized on the data
 

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flight were digitized on the data
visualization and animation labs video

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visualization and animation labs video
 

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visualization and animation labs video
image processing system the video image

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image processing system the video image
 

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image processing system the video image
processing system is a combination of

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processing system is a combination of
 

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processing system is a combination of
hardware and software designed to

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hardware and software designed to
 

237
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hardware and software designed to
provide interactive capability for

238
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provide interactive capability for
 

239
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provide interactive capability for
processing videotaped images of wind

240
00:05:30,200 --> 00:05:30,210
processing videotaped images of wind
 

241
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processing videotaped images of wind
tunnel or in flight experiments the

242
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tunnel or in flight experiments the
 

243
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tunnel or in flight experiments the
system controlled from a host computer

244
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system controlled from a host computer
 

245
00:05:35,210 --> 00:05:37,760
system controlled from a host computer
consists of an image processing system

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00:05:37,760 --> 00:05:37,770
consists of an image processing system
 

247
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consists of an image processing system
video equipment and a real-time digital

248
00:05:40,040 --> 00:05:40,050
video equipment and a real-time digital
 

249
00:05:40,050 --> 00:05:42,740
video equipment and a real-time digital
disc the software interface is a

250
00:05:42,740 --> 00:05:42,750
disc the software interface is a
 

251
00:05:42,750 --> 00:05:44,480
disc the software interface is a
commercially available image processing

252
00:05:44,480 --> 00:05:44,490
commercially available image processing
 

253
00:05:44,490 --> 00:05:46,820
commercially available image processing
software system the system is designed

254
00:05:46,820 --> 00:05:46,830
software system the system is designed
 

255
00:05:46,830 --> 00:05:49,129
software system the system is designed
to accept common video formats including

256
00:05:49,129 --> 00:05:49,139
to accept common video formats including
 

257
00:05:49,139 --> 00:05:52,670
to accept common video formats including
the s VHS and VHS formats used in this

258
00:05:52,670 --> 00:05:52,680
the s VHS and VHS formats used in this
 

259
00:05:52,680 --> 00:05:55,369
the s VHS and VHS formats used in this
flight test the software allows VCR

260
00:05:55,369 --> 00:05:55,379
flight test the software allows VCR
 

261
00:05:55,379 --> 00:05:58,129
flight test the software allows VCR
control from the computer station video

262
00:05:58,129 --> 00:05:58,139
control from the computer station video
 

263
00:05:58,139 --> 00:05:59,990
control from the computer station video
footage is digitized and stored a

264
00:05:59,990 --> 00:06:00,000
footage is digitized and stored a
 

265
00:06:00,000 --> 00:06:02,860
footage is digitized and stored a
digital disc at 30 frames per second

266
00:06:02,860 --> 00:06:02,870
digital disc at 30 frames per second
 

267
00:06:02,870 --> 00:06:05,600
digital disc at 30 frames per second
once rendered to real time disk the

268
00:06:05,600 --> 00:06:05,610
once rendered to real time disk the
 

269
00:06:05,610 --> 00:06:07,430
once rendered to real time disk the
images are slowed down during playback

270
00:06:07,430 --> 00:06:07,440
images are slowed down during playback
 

271
00:06:07,440 --> 00:06:10,550
images are slowed down during playback
and examined in slow motion timecode

272
00:06:10,550 --> 00:06:10,560
and examined in slow motion timecode
 

273
00:06:10,560 --> 00:06:12,080
and examined in slow motion timecode
information appearing in the lower left

274
00:06:12,080 --> 00:06:12,090
information appearing in the lower left
 

275
00:06:12,090 --> 00:06:14,350
information appearing in the lower left
corner uniquely identifies each image

276
00:06:14,350 --> 00:06:14,360
corner uniquely identifies each image
 

277
00:06:14,360 --> 00:06:16,879
corner uniquely identifies each image
selected images were stored on a disc

278
00:06:16,879 --> 00:06:16,889
selected images were stored on a disc
 

279
00:06:16,889 --> 00:06:25,959
selected images were stored on a disc
for post-processing

280
00:06:25,959 --> 00:06:25,969

 

281
00:06:25,969 --> 00:06:28,629

with the use of extractor software the

282
00:06:28,629 --> 00:06:28,639
with the use of extractor software the
 

283
00:06:28,639 --> 00:06:30,699
with the use of extractor software the
poor locations for a vortex system were

284
00:06:30,699 --> 00:06:30,709
poor locations for a vortex system were
 

285
00:06:30,709 --> 00:06:32,649
poor locations for a vortex system were
determined by examining each printed

286
00:06:32,649 --> 00:06:32,659
determined by examining each printed
 

287
00:06:32,659 --> 00:06:35,679
determined by examining each printed
image the show movie of this directory

288
00:06:35,679 --> 00:06:35,689
image the show movie of this directory
 

289
00:06:35,689 --> 00:06:38,079
image the show movie of this directory
option enables an overall impression of

290
00:06:38,079 --> 00:06:38,089
option enables an overall impression of
 

291
00:06:38,089 --> 00:06:39,699
option enables an overall impression of
flow over the wing at the test condition

292
00:06:39,699 --> 00:06:39,709
flow over the wing at the test condition
 

293
00:06:39,709 --> 00:06:42,219
flow over the wing at the test condition
and allows the determination of how many

294
00:06:42,219 --> 00:06:42,229
and allows the determination of how many
 

295
00:06:42,229 --> 00:06:45,359
and allows the determination of how many
vortices are present and the progression

296
00:06:45,359 --> 00:06:45,369
vortices are present and the progression
 

297
00:06:45,369 --> 00:06:47,379
vortices are present and the progression
beginning with the first image to be

298
00:06:47,379 --> 00:06:47,389
beginning with the first image to be
 

299
00:06:47,389 --> 00:06:49,779
beginning with the first image to be
examined invoked the defined region of

300
00:06:49,779 --> 00:06:49,789
examined invoked the defined region of
 

301
00:06:49,789 --> 00:06:52,089
examined invoked the defined region of
interest for this image option and use

302
00:06:52,089 --> 00:06:52,099
interest for this image option and use
 

303
00:06:52,099 --> 00:06:53,829
interest for this image option and use
the mouse to circumscribe the region

304
00:06:53,829 --> 00:06:53,839
the mouse to circumscribe the region
 

305
00:06:53,839 --> 00:06:55,829
the mouse to circumscribe the region
where the core is thought to be located

306
00:06:55,829 --> 00:06:55,839
where the core is thought to be located
 

307
00:06:55,839 --> 00:06:58,899
where the core is thought to be located
the horizontal and vertical pixel values

308
00:06:58,899 --> 00:06:58,909
the horizontal and vertical pixel values
 

309
00:06:58,909 --> 00:07:01,359
the horizontal and vertical pixel values
for this core is saved however if other

310
00:07:01,359 --> 00:07:01,369
for this core is saved however if other
 

311
00:07:01,369 --> 00:07:03,249
for this core is saved however if other
cores are present on this image they

312
00:07:03,249 --> 00:07:03,259
cores are present on this image they
 

313
00:07:03,259 --> 00:07:05,499
cores are present on this image they
must also be determined and saved before

314
00:07:05,499 --> 00:07:05,509
must also be determined and saved before
 

315
00:07:05,509 --> 00:07:08,589
must also be determined and saved before
proceeding the same steps are repeated

316
00:07:08,589 --> 00:07:08,599
proceeding the same steps are repeated
 

317
00:07:08,599 --> 00:07:12,100
proceeding the same steps are repeated
for other images after all the images

318
00:07:12,100 --> 00:07:12,110
for other images after all the images
 

319
00:07:12,110 --> 00:07:14,499
for other images after all the images
for the data set up in process the wave

320
00:07:14,499 --> 00:07:14,509
for the data set up in process the wave
 

321
00:07:14,509 --> 00:07:16,929
for the data set up in process the wave
program is exited and the core pixel

322
00:07:16,929 --> 00:07:16,939
program is exited and the core pixel
 

323
00:07:16,939 --> 00:07:18,819
program is exited and the core pixel
values up to four sets per image are

324
00:07:18,819 --> 00:07:18,829
values up to four sets per image are
 

325
00:07:18,829 --> 00:07:22,179
values up to four sets per image are
moved to a permanent file to determine

326
00:07:22,179 --> 00:07:22,189
moved to a permanent file to determine
 

327
00:07:22,189 --> 00:07:24,219
moved to a permanent file to determine
the reattachment points the extractor

328
00:07:24,219 --> 00:07:24,229
the reattachment points the extractor
 

329
00:07:24,229 --> 00:07:28,509
the reattachment points the extractor
software is once again used the outer

330
00:07:28,509 --> 00:07:28,519
software is once again used the outer
 

331
00:07:28,519 --> 00:07:30,189
software is once again used the outer
part of the vortex is projected

332
00:07:30,189 --> 00:07:30,199
part of the vortex is projected
 

333
00:07:30,199 --> 00:07:31,689
part of the vortex is projected
vertically to the forward part of the

334
00:07:31,689 --> 00:07:31,699
vertically to the forward part of the
 

335
00:07:31,699 --> 00:07:34,149
vertically to the forward part of the
light sheet footprint this is followed

336
00:07:34,149 --> 00:07:34,159
light sheet footprint this is followed
 

337
00:07:34,159 --> 00:07:35,919
light sheet footprint this is followed
by a circumscription of a small region

338
00:07:35,919 --> 00:07:35,929
by a circumscription of a small region
 

339
00:07:35,929 --> 00:07:39,279
by a circumscription of a small region
on the footprint with the mouse after

340
00:07:39,279 --> 00:07:39,289
on the footprint with the mouse after
 

341
00:07:39,289 --> 00:07:41,079
on the footprint with the mouse after
the horizontal and vertical pixel values

342
00:07:41,079 --> 00:07:41,089
the horizontal and vertical pixel values
 

343
00:07:41,089 --> 00:07:42,959
the horizontal and vertical pixel values
for the pointer found they are saved

344
00:07:42,959 --> 00:07:42,969
for the pointer found they are saved
 

345
00:07:42,969 --> 00:07:45,159
for the pointer found they are saved
what other reattachment points are

346
00:07:45,159 --> 00:07:45,169
what other reattachment points are
 

347
00:07:45,169 --> 00:07:46,929
what other reattachment points are
present on this image they must also be

348
00:07:46,929 --> 00:07:46,939
present on this image they must also be
 

349
00:07:46,939 --> 00:07:49,439
present on this image they must also be
determined and saved before proceeding

350
00:07:49,439 --> 00:07:49,449
determined and saved before proceeding
 

351
00:07:49,449 --> 00:07:52,029
determined and saved before proceeding
prior to saving all these pixel values

352
00:07:52,029 --> 00:07:52,039
prior to saving all these pixel values
 

353
00:07:52,039 --> 00:07:54,219
prior to saving all these pixel values
consistency in the criterion used to

354
00:07:54,219 --> 00:07:54,229
consistency in the criterion used to
 

355
00:07:54,229 --> 00:07:56,079
consistency in the criterion used to
determine reattachment points is checked

356
00:07:56,079 --> 00:07:56,089
determine reattachment points is checked
 

357
00:07:56,089 --> 00:07:58,299
determine reattachment points is checked
these steps are repeated for the other

358
00:07:58,299 --> 00:07:58,309
these steps are repeated for the other
 

359
00:07:58,309 --> 00:08:01,239
these steps are repeated for the other
images after all the images for the data

360
00:08:01,239 --> 00:08:01,249
images after all the images for the data
 

361
00:08:01,249 --> 00:08:03,609
images after all the images for the data
set have been processed the wave program

362
00:08:03,609 --> 00:08:03,619
set have been processed the wave program
 

363
00:08:03,619 --> 00:08:05,589
set have been processed the wave program
is exited and the reattachment point

364
00:08:05,589 --> 00:08:05,599
is exited and the reattachment point
 

365
00:08:05,599 --> 00:08:07,509
is exited and the reattachment point
pixel values up to four sets per image

366
00:08:07,509 --> 00:08:07,519
pixel values up to four sets per image
 

367
00:08:07,519 --> 00:08:15,690
pixel values up to four sets per image
are moved to a permanent file

368
00:08:15,690 --> 00:08:15,700

 

369
00:08:15,700 --> 00:08:18,460

to display vortex flow features is

370
00:08:18,460 --> 00:08:18,470
to display vortex flow features is
 

371
00:08:18,470 --> 00:08:20,320
to display vortex flow features is
characterized by the vapor screen image

372
00:08:20,320 --> 00:08:20,330
characterized by the vapor screen image
 

373
00:08:20,330 --> 00:08:21,940
characterized by the vapor screen image
in poor location with reattachment

374
00:08:21,940 --> 00:08:21,950
in poor location with reattachment
 

375
00:08:21,950 --> 00:08:23,800
in poor location with reattachment
points in a three-dimensional mode a

376
00:08:23,800 --> 00:08:23,810
points in a three-dimensional mode a
 

377
00:08:23,810 --> 00:08:26,470
points in a three-dimensional mode a
Silicon Graphics iris workstation and

378
00:08:26,470 --> 00:08:26,480
Silicon Graphics iris workstation and
 

379
00:08:26,480 --> 00:08:28,660
Silicon Graphics iris workstation and
the flow analysis software toolkit

380
00:08:28,660 --> 00:08:28,670
the flow analysis software toolkit
 

381
00:08:28,670 --> 00:08:32,080
the flow analysis software toolkit
called fast was utilized once logged

382
00:08:32,080 --> 00:08:32,090
called fast was utilized once logged
 

383
00:08:32,090 --> 00:08:34,510
called fast was utilized once logged
onto the iris a remote login is done to

384
00:08:34,510 --> 00:08:34,520
onto the iris a remote login is done to
 

385
00:08:34,520 --> 00:08:36,280
onto the iris a remote login is done to
a host computer containing the image

386
00:08:36,280 --> 00:08:36,290
a host computer containing the image
 

387
00:08:36,290 --> 00:08:38,320
a host computer containing the image
files along with poor location and

388
00:08:38,320 --> 00:08:38,330
files along with poor location and
 

389
00:08:38,330 --> 00:08:40,930
files along with poor location and
reattachment point trials with a fast

390
00:08:40,930 --> 00:08:40,940
reattachment point trials with a fast
 

391
00:08:40,940 --> 00:08:42,970
reattachment point trials with a fast
script written for this purpose it is

392
00:08:42,970 --> 00:08:42,980
script written for this purpose it is
 

393
00:08:42,980 --> 00:08:44,650
script written for this purpose it is
simple to obtain the vortex system

394
00:08:44,650 --> 00:08:44,660
simple to obtain the vortex system
 

395
00:08:44,660 --> 00:08:46,420
simple to obtain the vortex system
features on a wing by keying in the

396
00:08:46,420 --> 00:08:46,430
features on a wing by keying in the
 

397
00:08:46,430 --> 00:08:49,030
features on a wing by keying in the
corresponding points this generates the

398
00:08:49,030 --> 00:08:49,040
corresponding points this generates the
 

399
00:08:49,040 --> 00:08:50,890
corresponding points this generates the
feature from both the top and side

400
00:08:50,890 --> 00:08:50,900
feature from both the top and side
 

401
00:08:50,900 --> 00:08:52,540
feature from both the top and side
cameras in terms of the

402
00:08:52,540 --> 00:08:52,550
cameras in terms of the
 

403
00:08:52,550 --> 00:08:54,370
cameras in terms of the
three-dimensional coordinates consistent

404
00:08:54,370 --> 00:08:54,380
three-dimensional coordinates consistent
 

405
00:08:54,380 --> 00:08:56,290
three-dimensional coordinates consistent
with the aircraft and then displays them

406
00:08:56,290 --> 00:08:56,300
with the aircraft and then displays them
 

407
00:08:56,300 --> 00:08:58,960
with the aircraft and then displays them
on the surface geometry by using the

408
00:08:58,960 --> 00:08:58,970
on the surface geometry by using the
 

409
00:08:58,970 --> 00:09:01,000
on the surface geometry by using the
capabilities of fast the resulting

410
00:09:01,000 --> 00:09:01,010
capabilities of fast the resulting
 

411
00:09:01,010 --> 00:09:02,710
capabilities of fast the resulting
three-dimensional representation would

412
00:09:02,710 --> 00:09:02,720
three-dimensional representation would
 

413
00:09:02,720 --> 00:09:04,540
three-dimensional representation would
be moved until it resembles the NASA

414
00:09:04,540 --> 00:09:04,550
be moved until it resembles the NASA
 

415
00:09:04,550 --> 00:09:13,960
be moved until it resembles the NASA
technical paper

416
00:09:13,960 --> 00:09:13,970

 

417
00:09:13,970 --> 00:09:16,900

in 1985 the stationary light sheet was

418
00:09:16,900 --> 00:09:16,910
in 1985 the stationary light sheet was
 

419
00:09:16,910 --> 00:09:18,999
in 1985 the stationary light sheet was
used to illuminate a fixed cross section

420
00:09:18,999 --> 00:09:19,009
used to illuminate a fixed cross section
 

421
00:09:19,009 --> 00:09:21,069
used to illuminate a fixed cross section
of a flow field above the wing of the f1

422
00:09:21,069 --> 00:09:21,079
of a flow field above the wing of the f1
 

423
00:09:21,079 --> 00:09:24,160
of a flow field above the wing of the f1
or 6 be a camera calibration was not

424
00:09:24,160 --> 00:09:24,170
or 6 be a camera calibration was not
 

425
00:09:24,170 --> 00:09:26,379
or 6 be a camera calibration was not
performed at the time of his flight thus

426
00:09:26,379 --> 00:09:26,389
performed at the time of his flight thus
 

427
00:09:26,389 --> 00:09:28,059
performed at the time of his flight thus
the photo prometric reconstruction

428
00:09:28,059 --> 00:09:28,069
the photo prometric reconstruction
 

429
00:09:28,069 --> 00:09:30,699
the photo prometric reconstruction
technique could not be applied spatial

430
00:09:30,699 --> 00:09:30,709
technique could not be applied spatial
 

431
00:09:30,709 --> 00:09:32,290
technique could not be applied spatial
information was obtained before the

432
00:09:32,290 --> 00:09:32,300
information was obtained before the
 

433
00:09:32,300 --> 00:09:34,210
information was obtained before the
flights by placing a physical grid of

434
00:09:34,210 --> 00:09:34,220
flights by placing a physical grid of
 

435
00:09:34,220 --> 00:09:36,400
flights by placing a physical grid of
regularly spaced 6 inch squares in

436
00:09:36,400 --> 00:09:36,410
regularly spaced 6 inch squares in
 

437
00:09:36,410 --> 00:09:39,129
regularly spaced 6 inch squares in
refrain of the light sheet when the grid

438
00:09:39,129 --> 00:09:39,139
refrain of the light sheet when the grid
 

439
00:09:39,139 --> 00:09:40,780
refrain of the light sheet when the grid
was photographed by the camera in its

440
00:09:40,780 --> 00:09:40,790
was photographed by the camera in its
 

441
00:09:40,790 --> 00:09:43,030
was photographed by the camera in its
flight position a prospective distortion

442
00:09:43,030 --> 00:09:43,040
flight position a prospective distortion
 

443
00:09:43,040 --> 00:09:45,189
flight position a prospective distortion
was introduced the distortion was

444
00:09:45,189 --> 00:09:45,199
was introduced the distortion was
 

445
00:09:45,199 --> 00:09:47,290
was introduced the distortion was
corrected using a warping procedure to

446
00:09:47,290 --> 00:09:47,300
corrected using a warping procedure to
 

447
00:09:47,300 --> 00:09:49,480
corrected using a warping procedure to
produce an image in which the gridlines

448
00:09:49,480 --> 00:09:49,490
produce an image in which the gridlines
 

449
00:09:49,490 --> 00:09:52,629
produce an image in which the gridlines
were regularly spaced the warping

450
00:09:52,629 --> 00:09:52,639
were regularly spaced the warping
 

451
00:09:52,639 --> 00:09:54,340
were regularly spaced the warping
technique was applied to selecting vapor

452
00:09:54,340 --> 00:09:54,350
technique was applied to selecting vapor
 

453
00:09:54,350 --> 00:09:56,889
technique was applied to selecting vapor
screen images from 1985 and the

454
00:09:56,889 --> 00:09:56,899
screen images from 1985 and the
 

455
00:09:56,899 --> 00:09:59,139
screen images from 1985 and the
resulting images were evenly distributed

456
00:09:59,139 --> 00:09:59,149
resulting images were evenly distributed
 

457
00:09:59,149 --> 00:10:01,259
resulting images were evenly distributed
across the light sheet plane to

458
00:10:01,259 --> 00:10:01,269
across the light sheet plane to
 

459
00:10:01,269 --> 00:10:04,420
across the light sheet plane to
reconstruct 3d coordinates when loaded

460
00:10:04,420 --> 00:10:04,430
reconstruct 3d coordinates when loaded
 

461
00:10:04,430 --> 00:10:06,699
reconstruct 3d coordinates when loaded
into the fast program the vapour screen

462
00:10:06,699 --> 00:10:06,709
into the fast program the vapour screen
 

463
00:10:06,709 --> 00:10:08,590
into the fast program the vapour screen
images produced by the stationary light

464
00:10:08,590 --> 00:10:08,600
images produced by the stationary light
 

465
00:10:08,600 --> 00:10:11,259
images produced by the stationary light
sheet in 1985 could be correlated with

466
00:10:11,259 --> 00:10:11,269
sheet in 1985 could be correlated with
 

467
00:10:11,269 --> 00:10:12,879
sheet in 1985 could be correlated with
those obtained from the rotating light

468
00:10:12,879 --> 00:10:12,889
those obtained from the rotating light
 

469
00:10:12,889 --> 00:10:16,629
those obtained from the rotating light
sheet of 1991 the vortex core paths and

470
00:10:16,629 --> 00:10:16,639
sheet of 1991 the vortex core paths and
 

471
00:10:16,639 --> 00:10:18,429
sheet of 1991 the vortex core paths and
reattachment lines extracted from the

472
00:10:18,429 --> 00:10:18,439
reattachment lines extracted from the
 

473
00:10:18,439 --> 00:10:20,829
reattachment lines extracted from the
1991 flight data could be displayed

474
00:10:20,829 --> 00:10:20,839
1991 flight data could be displayed
 

475
00:10:20,839 --> 00:10:29,020
1991 flight data could be displayed
simultaneously

476
00:10:29,020 --> 00:10:29,030

 

477
00:10:29,030 --> 00:10:31,510

with the enhancer software the vortex

478
00:10:31,510 --> 00:10:31,520
with the enhancer software the vortex
 

479
00:10:31,520 --> 00:10:35,110
with the enhancer software the vortex
system details can be enhanced the code

480
00:10:35,110 --> 00:10:35,120
system details can be enhanced the code
 

481
00:10:35,120 --> 00:10:37,210
system details can be enhanced the code
expects the user to key in the starting

482
00:10:37,210 --> 00:10:37,220
expects the user to key in the starting
 

483
00:10:37,220 --> 00:10:39,700
expects the user to key in the starting
and ending white sheet angles as well as

484
00:10:39,700 --> 00:10:39,710
and ending white sheet angles as well as
 

485
00:10:39,710 --> 00:10:41,380
and ending white sheet angles as well as
the filename containing the group of

486
00:10:41,380 --> 00:10:41,390
the filename containing the group of
 

487
00:10:41,390 --> 00:10:44,620
the filename containing the group of
files to consider the code displays all

488
00:10:44,620 --> 00:10:44,630
files to consider the code displays all
 

489
00:10:44,630 --> 00:10:46,420
files to consider the code displays all
the images in the group and asked

490
00:10:46,420 --> 00:10:46,430
the images in the group and asked
 

491
00:10:46,430 --> 00:10:48,160
the images in the group and asked
whether or not a particular image is to

492
00:10:48,160 --> 00:10:48,170
whether or not a particular image is to
 

493
00:10:48,170 --> 00:10:50,980
whether or not a particular image is to
be included for enhancement choosing the

494
00:10:50,980 --> 00:10:50,990
be included for enhancement choosing the
 

495
00:10:50,990 --> 00:10:53,140
be included for enhancement choosing the
enhance this image option for the first

496
00:10:53,140 --> 00:10:53,150
enhance this image option for the first
 

497
00:10:53,150 --> 00:10:56,620
enhance this image option for the first
image leads to yet another menu a three

498
00:10:56,620 --> 00:10:56,630
image leads to yet another menu a three
 

499
00:10:56,630 --> 00:10:58,540
image leads to yet another menu a three
by three smoothing on each image is

500
00:10:58,540 --> 00:10:58,550
by three smoothing on each image is
 

501
00:10:58,550 --> 00:11:00,520
by three smoothing on each image is
imposed a total of three times in

502
00:11:00,520 --> 00:11:00,530
imposed a total of three times in
 

503
00:11:00,530 --> 00:11:02,740
imposed a total of three times in
combination with the continued

504
00:11:02,740 --> 00:11:02,750
combination with the continued
 

505
00:11:02,750 --> 00:11:04,990
combination with the continued
enhancement to the image process option

506
00:11:04,990 --> 00:11:05,000
enhancement to the image process option
 

507
00:11:05,000 --> 00:11:07,960
enhancement to the image process option
the contrast stretch option is used to

508
00:11:07,960 --> 00:11:07,970
the contrast stretch option is used to
 

509
00:11:07,970 --> 00:11:09,970
the contrast stretch option is used to
spread the entire range of pseudo colors

510
00:11:09,970 --> 00:11:09,980
spread the entire range of pseudo colors
 

511
00:11:09,980 --> 00:11:11,710
spread the entire range of pseudo colors
in such a way as to emphasize the

512
00:11:11,710 --> 00:11:11,720
in such a way as to emphasize the
 

513
00:11:11,720 --> 00:11:15,250
in such a way as to emphasize the
existing gradation in this image the

514
00:11:15,250 --> 00:11:15,260
existing gradation in this image the
 

515
00:11:15,260 --> 00:11:17,950
existing gradation in this image the
contour option allows selected colors to

516
00:11:17,950 --> 00:11:17,960
contour option allows selected colors to
 

517
00:11:17,960 --> 00:11:21,780
contour option allows selected colors to
be set to black thereby forming contours

518
00:11:21,780 --> 00:11:21,790
be set to black thereby forming contours
 

519
00:11:21,790 --> 00:11:24,760
be set to black thereby forming contours
finally the save enhanced flight image

520
00:11:24,760 --> 00:11:24,770
finally the save enhanced flight image
 

521
00:11:24,770 --> 00:11:27,160
finally the save enhanced flight image
option is used which displays the image

522
00:11:27,160 --> 00:11:27,170
option is used which displays the image
 

523
00:11:27,170 --> 00:11:29,350
option is used which displays the image
with an identification code and then

524
00:11:29,350 --> 00:11:29,360
with an identification code and then
 

525
00:11:29,360 --> 00:11:37,670
with an identification code and then
saves it

526
00:11:37,670 --> 00:11:37,680

 

527
00:11:37,680 --> 00:11:39,740

the photogrammetric reconstruction

528
00:11:39,740 --> 00:11:39,750
the photogrammetric reconstruction
 

529
00:11:39,750 --> 00:11:41,690
the photogrammetric reconstruction
technique which maps vapor images onto

530
00:11:41,690 --> 00:11:41,700
technique which maps vapor images onto
 

531
00:11:41,700 --> 00:11:43,880
technique which maps vapor images onto
light sheet planes was extended to

532
00:11:43,880 --> 00:11:43,890
light sheet planes was extended to
 

533
00:11:43,890 --> 00:11:46,070
light sheet planes was extended to
project imagery onto any arbitrary

534
00:11:46,070 --> 00:11:46,080
project imagery onto any arbitrary
 

535
00:11:46,080 --> 00:11:49,519
project imagery onto any arbitrary
surface composed of polygons this

536
00:11:49,519 --> 00:11:49,529
surface composed of polygons this
 

537
00:11:49,529 --> 00:11:51,320
surface composed of polygons this
extension was specifically used to

538
00:11:51,320 --> 00:11:51,330
extension was specifically used to
 

539
00:11:51,330 --> 00:11:53,570
extension was specifically used to
project oil flow patterns videotaped by

540
00:11:53,570 --> 00:11:53,580
project oil flow patterns videotaped by
 

541
00:11:53,580 --> 00:11:55,760
project oil flow patterns videotaped by
the top camera onto the political model

542
00:11:55,760 --> 00:11:55,770
the top camera onto the political model
 

543
00:11:55,770 --> 00:11:58,639
the top camera onto the political model
of a wing surface vapor screen images

544
00:11:58,639 --> 00:11:58,649
of a wing surface vapor screen images
 

545
00:11:58,649 --> 00:12:00,800
of a wing surface vapor screen images
core paths and reattachment lines

546
00:12:00,800 --> 00:12:00,810
core paths and reattachment lines
 

547
00:12:00,810 --> 00:12:02,840
core paths and reattachment lines
extracted from the rotating light sheet

548
00:12:02,840 --> 00:12:02,850
extracted from the rotating light sheet
 

549
00:12:02,850 --> 00:12:05,540
extracted from the rotating light sheet
but then be displayed simultaneously for

550
00:12:05,540 --> 00:12:05,550
but then be displayed simultaneously for
 

551
00:12:05,550 --> 00:12:13,310
but then be displayed simultaneously for
a direct comparison this video

552
00:12:13,310 --> 00:12:13,320
a direct comparison this video
 

553
00:12:13,320 --> 00:12:14,690
a direct comparison this video
supplement has been designed to

554
00:12:14,690 --> 00:12:14,700
supplement has been designed to
 

555
00:12:14,700 --> 00:12:16,250
supplement has been designed to
demonstrate the computer graphics

556
00:12:16,250 --> 00:12:16,260
demonstrate the computer graphics
 

557
00:12:16,260 --> 00:12:18,500
demonstrate the computer graphics
capabilities utilized in developing data

558
00:12:18,500 --> 00:12:18,510
capabilities utilized in developing data
 

559
00:12:18,510 --> 00:12:21,350
capabilities utilized in developing data
which are presented in the report the

560
00:12:21,350 --> 00:12:21,360
which are presented in the report the
 

561
00:12:21,360 --> 00:12:23,210
which are presented in the report the
viewers reminded that this supplement

562
00:12:23,210 --> 00:12:23,220
viewers reminded that this supplement
 

563
00:12:23,220 --> 00:12:25,010
viewers reminded that this supplement
does not purport to present the complete

564
00:12:25,010 --> 00:12:25,020
does not purport to present the complete
 

565
00:12:25,020 --> 00:12:27,380
does not purport to present the complete
set of various data types or the

566
00:12:27,380 --> 00:12:27,390
set of various data types or the
 

567
00:12:27,390 --> 00:12:29,420
set of various data types or the
attendant analyses both of which are

568
00:12:29,420 --> 00:12:29,430
attendant analyses both of which are
 

569
00:12:29,430 --> 00:12:31,510
attendant analyses both of which are
contained on the NASA technical paper

570
00:12:31,510 --> 00:12:31,520
contained on the NASA technical paper
 

571
00:12:31,520 --> 00:12:33,829
contained on the NASA technical paper
therefore the view is referred to the

572
00:12:33,829 --> 00:12:33,839
therefore the view is referred to the
 

573
00:12:33,839 --> 00:12:35,269
therefore the view is referred to the
formal report for the complete

574
00:12:35,269 --> 00:12:35,279
formal report for the complete
 

575
00:12:35,279 --> 00:12:38,570
formal report for the complete
documentation of this work