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[Music]

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the way you and i might take a selfie is

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by holding a camera

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out with our arm and taking a single

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image the way the rover takes a selfie

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the way the rover takes a selfie is by

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using the watson camera at the end of

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the robotic arm

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but the watson camera was designed to

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take close-up images of rock for

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scientific analysis

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and even with the arm fully extended we

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can't cover the entire rover

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in a single image to capture the entire

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rover we take multiple images

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and then stitch them together in order

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to do that

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we try to hold the watson camera sensor

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in the same position

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to take the different images in order to

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keep the camera at the same position

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and take the different image frames the

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arm may actually have to move quite a

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lot

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it can take up to an hour of our motion

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and imaging

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to take that entire selfie the reason

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you don't see the robotic arm

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in the selfie is because it's moving

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between the different image frames that

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we are taking

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and we include enough overlap between

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the images so that when we stitch them

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together

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we don't have to include the arm another

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exciting first on the perseverance

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mission

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is the inclusion of microphones for the

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very first time we were able to record

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sounds

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of the arm moving as it was taking the

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selfie

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you can distinctly hear the sounds of

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the brakes on the arm actuators clicking

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and at times as the motors are changing

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speed

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it almost sounds musical like a flute

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[Music]

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when a person takes a selfie we just

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hold our arm up

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and take a single image to create the

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first persevere and selfie it took an

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entire team of people

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working together for almost an entire

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week

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in the end it took 62 images stitched