Hi guys so I am exporting the depth map generated by Metashape as .EXR format for further manipulation. I am wondering what is the value in the exporting depth map. It seems to be ranged within 0 and 1.
(1) Is the value in each pixel the actual distance from pinhole camera center to the surface along the ray?
(2) Or it is some kind of normalized depth within the frustum?
If it is (1), giving that it seems to be normalized by some way, how to scale it back to actual depth?
If it is (2), is there any method using python script to convert it into the actual depth?
Maybe another related question: (3) if I already have the corresponding depth map of each image, can I import to Metashape and use it to help the camera alignment/calibration?
Thanks