3D Computation for Dynamic Cameras
When all the videos are taken by dynamic cameras, the following steps may be used to
compute the camera parameters and x, y, z coordinates at the same time:
- Invoke the 3D Computation dialog box;
- Select proper computation parameters in
the dialog;
- Select the check button "From" in the "Frame range" field, and enter
the start and end frame numbers;
- Make sure that the camera parameters
are set properly in the starting frame;
- Press "Compute" button to start computing.
Photo4D starts computing from the starting frame. Therefore, the camera
parameters must be initialized properly in this frame. In addition,
the setup for
3D computing must be complete.
After finish computation for the first frame, Photo4D proceeds to the next
frame. If the camera parameters for this second frame are not initialized,
it will automatically copy the parameters from the previous frame and
use them as the initial parameters. Again, all the setup pre-conditions such as
reference points are checked before computing. Photo4D stops at the
frame where the pre-conditions are not met.