2 Replies Latest reply on Jan 8, 2018 2:52 PM by Intel Corporation

    How to convert pixel relative focal lengths to mm for R200


      Ive been playing around with the Intel Realsense R200 Camera.

      I am able to exact focal length in x and y i.e. fx and fy, but only "up to scale relative to pixel width and height, respectively"

      At the moment I dont see any way of querying the pixel dimensions in mm from the API nor can I find them in the tech specs.

      So my question is: How can I get the fx and fy in mm? One way I can think of is to take a picture of my checkerboard pattern and count the number of pixels and divide by the size in mm.

      Is there a better/more elegant way? It seems kind of..imprecise.