Motion Capture is defined as the creation of 3d representation of a live performance
(or)
Its a process by which a movement can be recorded digitally.
This process was considered a fairly controversial tool for creating animation, in the early days the effort required to clean up motion capture data often took as long as if the animation was created by an animator from scratch to the final render.
Thanks for the hard work done by the manufacturers of motion capture systems as well as numerous software developers, motion capture became a feasible tool for generation of animation.
Motion Capture Technologies
1. Prosthetic
2. Acoustic
3. Electromagnetic
4. Optical fiber
Things to be taken care at the time of motion capture
1. Position and orientation of root segment
2. Position of joint angles
3.Length of each link
4.Skeleton connectivity
5.Skin deformation
Production pipeline for motion capture
1. Sensor Calibration
2. Subject calibration
3. Record movements
4. Marker data cleanup
5. Convert to joint angles
6. Mapping to characters
