Transmission of the motion of a walker by model-based image coding

Tadahiko Kimoto; Yasuhiko Yasuda

doi:10.1117/12.50255

1 November 1991 Transmission of the motion of a walker by model-based image coding

Tadahiko Kimoto, Yasuhiko Yasuda

Proceedings Volume 1605, Visual Communications and Image Processing '91: Visual Communication; (1991) https://doi.org/10.1117/12.50255
Event: Visual Communications, '91, 1991, Boston, MA, United States

Abstract

To the scene of a human walker a model-based image coding scheme is applied for transmission of a human motion. In our scheme, the motion of a whole human body is represented in 3-D stick motion. A 3-D human stick model is supposed to walk in the limited way. The structure parameters that form the model and the motion parameters that represent the motion of a walker are defined for the model. These parameters are estimated from an input image sequence by motion analysis. Here, this image sequence is a monocular one obtained with one fixed video camera. To improve the range in which the motion of a walker is represented, three stick models with different degrees of coarseness are used. An algorithm for estimating the parameters of these models in the order of coarseness is presented. The stick motion estimated from the experimental scene has been shown. Also, transmission of the estimated parameters is discussed. Because of the order in which parameters are estimated, the transmission delay in our scheme becomes at least the period of one step.

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Tadahiko Kimoto and Yasuhiko Yasuda "Transmission of the motion of a walker by model-based image coding", Proc. SPIE 1605, Visual Communications and Image Processing '91: Visual Communication, (1 November 1991); https://doi.org/10.1117/12.50255

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KEYWORDS

Motion models

3D modeling

Head

Motion estimation

Model-based design

Motion analysis

Cameras

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