I'm looking for some help trying to solve the geometry / camera positioning for a show clip. After many days of testing and tweaking I still can't get a matching result and I just don't understand why. The tracking itself seems pretty stable, but the actual location and orientation of the camera does not match at all. Target is to place a pretty big bed (width: ~1m, length: ~2m, height: ~2.5m) into the room.
In addition to some other randomly distributed markers, there are 4 markers on the ground, which mark exactly the middle of the outer posts of the bed. The distance from left to right is exactly 1980mm and the distance from front to back is exactly 974mm.
- Camera: Sony Alpha 7 III (35.6mm, 3:2 ratio, Full Frame Sensor)
- Lens: 28mm (Sony SEL28F20)
- Footage: 4K (16:9, 3840x2160), 25 FPS (PAL)
- Using other lenses: 24mm (Sony SEL24F14GM), 50mm (Sony SEL50F18F)
- Manually match camera position and orientation
- Using existing geometry as additional markers
- Using automatically generated markers ("detect features")
- Using less markers
- Let the solver automatically calculate the focal length, K1 & K2
- Solving orientation via "Wall" - the result didn't make sense at all
- Solving orientation via "Floor" - the result was at least somewhere around where it should be
- The functions "Set X-Axis" and "Set Y-Axis" result in swapping the matching orientations by invalidating the respective other axis
- Manually played around with the lens distortion values (K1 & K2)
I uploaded my current blender project file and the associated video footage via Dropbox, if someone may want to have a look on his/her own.
Sometimes, after trying to solve the problem, blender got completely confused (just like me) and didn't allow to use any tracks to set the orientation ("Three tracks with bundles are needed to orient the floor"; solving the camera motion over and over again didn't fix it, so I threw away the whole solution and started over).
I would be very pleased about support in solving the problem.