Motion Analyzer

History of Motion Capture for Character Computer Animation

The use of motion capture for computer character animation is relatively new, having started in the late 1970s, and only now beginning to spread. Motion capture is the recording of movements of the body (or other movement) for immediate or delayed analysis and playback. Motion capture for computer character animation involves the mapping of human movement on the movement of a computer character. For convincing motion for the human characters, the Disney studios traced animation over film footage of live actors playing the scenes. This method, called rotoscoping has been used successfully for the human characters never since.The Rotoscoping was invented by Max Fleischer in 1915.The cartoon character must first be rotoscope was "Koko the Clown." It would use to convince the koko Studio in the new process project.Walt Disney rotoscoping technique used in 1937 to create a movement characteristic of the man in the decision of snow white.The using the technique of rotoscoping realistic human movement. In 1970, he began to be possible to animate characters by computer animators adapted traditional techniques, is includingrotoscoping.There name several times in the history of motion capture;

Pioneer Motion Capture
Eadweard Muybridge (1830 - 1904) - pioneer photographer of the moving image
Etienne-Jules Marey - First person to analyze the movement of humans and animals with video
Harold E. "Doc" Edgerton photography (1903-1990), high-speed stroboscopic
Max Fleischer (1915) - Rotoscoping
Lee Harrison III (1960's) - Scanimation
Walt Disney - Multiplane Camera

The problems of motion capture
The aim of motion capture is to record the movement of a performer (usually but not always, human) in a graph manner.Computer compact and more generally usable and computer vision in an abstract body small number of rigid segments that rotate relative to one another.The problem of motion capture, I therefore must have the following form: given a single stream of video observations of a performer, calculating representation 3D skeleton of the motion of sufficient quality to be useful for animation.
The specific challenges of animation make the problem even more difficult.

- Contrary to popular applications such as reconnaissance and surveillance, the animation does care about small details.

- Jitter and wobbles often come from uncertainty in the calculations,

- The importance of high frequencies means that filtering is not a viable tool for noise removal in video sampling rate.

- The unpredictability and unusual motions that we need to capture limit the strength of models, we can apply.