Get camera matrix after setAlphaScaling in the depth node.

Mmrvladimir · May 2, 2023

Hello,

I would like to get rid of black borders/get better depth using the stereo node's setAlphaScaling function. After setting the alpha value, how do I get the new intrinsic camera matrix?

I currently use the ros bridge function calibrationToCameraInfo. Is there an api in the ImageConverter I could call to get the CameraInfo with the alpha scaling factor included?

Thank you,

Vladimir

jakaskerl · May 4, 2023

Hi mrvladimir
Have you checked this opencv function for new camera matrix?

Hope this helps,
Jaka

Mmrvladimir · May 4, 2023

I'm using that function as a work-around and assuming the result of getOptimalNewCameraMatrix is exactly the same as what the depthai setAlphaScale function does.

However it would be nice if I didn't have to rely on that assumption.