Object-oriented H.263 compatible video coding platform for conferencing applications

Author

Hartung, John ; Jacquin, Arnaud ; Pawlyk, James ; Rosenberg, Jonathan ; Okada, Hiroyuki ; Crouch, Paul E.

Author_Institution

Bell Labs., Lucent Technol., Murray Hill, NJ, USA

Volume

16

Issue

1

fYear

1998

fDate

1/1/1998 12:00:00 AM

Firstpage

42

Lastpage

55

Abstract

This paper describes a prototype video coding platform meant for the conception and testing of multimedia products such as next-generation videophones. The platform is largely based on ITU-T Recommendation H.263, with a number of additional object-oriented quality enhancement features which make it especially well suited for very low bit-rate coding of “head-and-shoulders” video material typical of real-time multimedia applications, video teleconferencing, and video telephony. These features consist of: (1) segmentation into objects of interest, (2) segmentation-based prefiltering, (3) model-assisted rate control, (4) adaptive vector quantization, and finally (5) segmentation-based postfiltering. In the spirit of Recommendation H.263, these enhancements are modular and can be selectively turned on or off, thereby enabling a wide variety of coding modes

Keywords

adaptive signal processing; channel capacity; code standards; filtering theory; image segmentation; multimedia communication; object-oriented methods; telecommunication equipment testing; telecommunication standards; teleconferencing; vector quantisation; video coding; videotelephony; ITU-T Recommendation H.263; adaptive vector quantization; coding modes; head-and-shoulders video material; image segmentation; model-assisted rate control; multimedia products testing; object-oriented H.263 compatible video coding; object-oriented quality enhancement features; prototype video coding platform; real-time multimedia applications; segmentation-based postfiltering; segmentation-based prefiltering; very low bit-rate coding; video teleconferencing; video telephony; videophones; Adaptive control; Discrete cosine transforms; Programmable control; Prototypes; Quantization; Shape control; Teleconferencing; Telephony; Testing; Video coding;

fLanguage

English

Journal_Title

Selected Areas in Communications, IEEE Journal on

Publisher

ieee

ISSN

0733-8716

Type

jour

DOI

10.1109/49.650919

Filename

650919