Discrepancy in Calibration parameters between ZED SDK and ZED_Explorer

Software
1

Hi,

I tried to get the calibration parameters from ZED SDK with camera_disable_self_calib=True and got the values below.

Camera Intrinsics: fx=520.53271484375, fy=520.53271484375, cx=648.7427368164062, cy=361.1180725097656

And from the ZED_Explorer, I got the values below.

fx: 533.4720 fy: 533.5850 cx: 631.1850 cy: 302.0235

image
image1315×1742 142 KB

My questions are:

  • Could you let me know why they are different even though I set camera_disable_self_calib as True?
  • From ZED SDK, the fx and fy are always the same. Please confirm if the identical fxand fy are correct.
  • Please let me know which values I can trust between ZED SDK or ZED_Explorer?

Thanks.