MPEG-4 and rate-distortion-based shape-coding techniques

Author

Katsaggelos, Aggelos K. ; Kondi, Lisimachos P. ; Meier, Fabian W. ; Ostermann, Jörn ; Schuster, Guido M.

Author_Institution

Dept. of Electr. & Comput. Eng., Northwestern Univ., Evanston, IL, USA

Volume

86

Issue

6

fYear

1998

fDate

6/1/1998 12:00:00 AM

Firstpage

1126

Lastpage

1154

Abstract

We address the problem of the efficient encoding of object boundaries. This problem is becoming increasingly important in applications such as content-based storage and retrieval, studio and television postproduction, and mobile multimedia applications. The MPEG-4 visual standard will allow the transmission of arbitrarily shaped video objects. The techniques developed for shape coding within the MPEG-4 standardization effort are described and compared first. A framework for the representation of shapes using their contours is presented next. Such representations are achieved using curves of various orders, and they are optimal in the rate-distortion sense. Finally, conclusions are drawn

Keywords

code standards; image representation; rate distortion theory; standardisation; telecommunication standards; video coding; visual communication; MPEG-4 visual standard; content-based retrieval; content-based storage; contours; curves; mobile multimedia applications; object boundaries; rate-distortion-based shape-coding; shape representation; standardization; studio postproduction; television postproduction; video objects transmission; Decoding; Electronic switching systems; Layout; MPEG 4 Standard; Multimedia databases; Rate-distortion; Shape; TV; Transform coding; Video compression;

fLanguage

English

Journal_Title

Proceedings of the IEEE

Publisher

ieee

ISSN

0018-9219

Type

jour

DOI

10.1109/5.687833

Filename

687833