Azure Kinect DK field of view.

David Kelly 21 Reputation points
2020-05-18T19:09:47.193+00:00

Hi, with the Azure Kinect DK camera/sensor's 120 degree wide angle lens, how close would I be able to get the camera to a 10 foot wide image to be able to see the whole image in the cameras field of view? Thanks!

Azure Kinect DK
Azure Kinect DK
A Microsoft developer kit and peripheral device with advanced artificial intelligence sensors for sophisticated computer vision and speech models.
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  1. Quentin Miller 351 Reputation points
    2020-06-05T00:58:15.157+00:00

    You can use simple trigonometry to calculate the width of the FOV for a specific distance from the camera.

    Your question calls out the 120x120 deg FOV of WFOV mode. There is also the 75x65 deg FOV of NFOV mode. You can find the full specifications here

    https://learn.microsoft.com/en-us/azure/Kinect-dk/hardware-specification

    Specifically looking at the 120 def FOV. You can split the FOV into 2x 60 deg (angle between acute and hypotenuse) right angle triangles with the opposite 5ft in length (1/2 of 10ft). The acute is calculated as tan(60) = 5 ft / a -> a = 5 ft / tan(60) = 2.88 ft. So the Azure Kinect camera needs to be at least 2.88 ft from a 10 ft subject to completely visualize the subject.

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  1. David Kelly 21 Reputation points
    2020-06-06T17:26:15.187+00:00

    Thanks so much Quentin, that answers my question and solves my problem!

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