Camera format fuse #18

ref Issue in RecamMaster，I understand the operation of c2w is to tranfer the coordinate from UE to OpenCV. But the code is a little different between SynCamMaster and RecamMaster, as the scale is 200 in Syncam but 100 in Recam. Is this because the camera format used in Syncam in UE is not centimeters but half of centimeters? I wonder is the SynCamMaster Model is still under OpenCV Coordinate