Model-based coding for multiobject sequence

Yunhai Liu; Lu Yu; Qingdong Yao

doi:10.1117/12.411866

29 December 2000 Model-based coding for multiobject sequence

Yunhai Liu, Lu Yu, Qingdong Yao

Proceedings Volume 4310, Visual Communications and Image Processing 2001; (2000) https://doi.org/10.1117/12.411866
Event: Photonics West 2001 - Electronic Imaging, 2001, San Jose, CA, United States

Abstract

Model-based coding has been studied mostly on video sequence with only one person. Normally there are several persons in the videoconference scenes. In this paper, model-based coding for multi-objects (or multi-person) sequence is explored. A multi-scale 3D wire-frame of head has been constructed to fit for different head size on the scene. The object is composed of several components such as head, shoulder and arm. Wire- frame of shoulder and arm are built in this contribution. By connecting different components according to physical structure, a more complete wire-frame of upper body with head is built. The ways of motion parameters transferring through the different components are determined. The bit-rate of three-object sequence is compared with one-object sequence with the same image format. Model-based coding efficiency of multi-object sequence is higher than that of one-object sequence.

Citation Download Citation

Yunhai Liu, Lu Yu, and Qingdong Yao "Model-based coding for multiobject sequence", Proc. SPIE 4310, Visual Communications and Image Processing 2001, (29 December 2000); https://doi.org/10.1117/12.411866

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