Developments in model-based video coding

Author

Pearson, Donald E.

Author_Institution

Essex Univ., Colchester, UK

Volume

83

Issue

6

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

892

Lastpage

906

Abstract

This paper reports on current developments in the area of model-based video coding, a technique which shows promise of achieving very large bit-rate reductions for moving images. After an introduction and historical review, advances are summarized in several areas, among them improved 3D tracking of the human head and of facial expressions, the use of muscle-driven model animation with skin synthesis, techniques for luminance compensation, and switched coders. Bit rates ranging from 64 kb/s down to about 1 kb/s have been obtained using head-and-shoulder video sequences. Problems with model-based methods are identified and future developments in both CBR and VBR transmission discussed

Keywords

image sequences; reviews; tracking; variable rate codes; video coding; 3D tracking; CBR transmission; VBR transmission; facial expressions; head-and-shoulder video sequences; historical review; human head; luminance compensation; model-based methods; model-based video coding; moving images; muscle-driven model animation; skin synthesis; switched coders; very large bit-rate reductions; Bit rate; Facial animation; Head; Humans; Image coding; Image sequences; Shape control; Skin; Video coding; Video sequences;

fLanguage

English

Journal_Title

Proceedings of the IEEE

Publisher

ieee

ISSN

0018-9219

Type

jour

DOI

10.1109/5.387091

Filename

387091