3D Computation for Fixed Camera

When all the videos are taken by fixed cameras, we only need to compute camera parameters in the current frame. The following describes a way to proceed:

1. Compute the camera parameters in the current frame:
   • Make sure that the camera parameters have been setup initially in the current frame.
   • Invoke the 3D Computation dialog.
   • Select the proper computation parameters.
   • Make sure that the "current" button is checked in the "Frame Range" field.
   • Press "Compute" to starting the computation.
2. Copy the compute camera parameters to other frames: In the Camera Parameter window, the following menu commands are used for copying:
   • [Edit|copy current from...] is for copying the parameters of the current camera from a given frame.
   • [Edit|copy current to...] is for copying the parameters of the current camera to a given frame.
   • [Edit|copy current to rest frames] is for copying the parameters of the current camera to all other frames.
   • [Edit|copy all from...] is for copying the parameters of all cameras from a given frame.
   • [Edit|copy all to...] is for copying the parameters of all cameras to a given frame.
   • [Edit|copy all to rest frames] is for copying the parameters of all cameras to all the other frames.
3. Compute x, y, z coordinates in all frames:
   • Invoke the 3D computation dialog again.
   • Select camP = none, so that already-computed camera parameters will not be changed.
   • Select the "From" check button in the "Frame Range" field and enter the proper start and end frame numbers.
   • Press the "Compute" button to start computing the x,y,z values for the points in the selected frames.