I configured a rig with 5 cameras, 4 of which are muti spectral. First step (calibration) appeared to complete without errors. However few odd things happened:
- Reference camera (RGB) was swapped by pix4D in mid-calibration to one of the multi spectral cameras
- The quality report showed the original reference (RGB) camera
a) Had basically zero automatic tie points (ATPs), i.e. black raster in the bundle block adjustment details
b) Had very few matched 2D keypoints per image (mean about 30)
c) 2D keypoint matches map had mostly 100’s of links between adjacent images (gray shades) and not thousands (dark/black color links)
d) But, overlap between images was very good (practically 5 images per pixel for almost all pixels)
Would appreciate any ideas.