Wavelet coder for image sequence coding at very low bit rate

Author

Abraham, Steffen ; Seytter, Fritz

Author_Institution

Dept. of Math. & Inf., Friedrich-Schiller-Univ., Jena, Germany

fYear

1994

fDate

25-28 Oct 1994

Firstpage

334

Lastpage

337

Abstract

The transmission of video with very low bit rates ranging from 8 to 16 kbit/s is necessary e.g. for an audiovisual terminal working in a mobile cellular communication network. It was investigated, whether the discrete wavelet transform can be an alternative to the block based cosine transform (DCT). The emphasis for the work was to develop a complete source coder in order to be able to compare the image quality with other state-of-the-art coders. The article presents the design of the coder. Experiments using standard videophone test sequences show that the obtained image quality is similar to the best available results from DCT coders

Keywords

image sequences; source coding; transform coding; transforms; video coding; videotelephony; wavelet transforms; 8 to 16 kbit/s; DCT coders; block based cosine transform; discrete wavelet transform; image quality; image sequence coding; source coder; very low bit rate coding; video coding; video transmission; videophone test sequences; wavelet coder; Bit rate; Cellular networks; Code standards; Communication networks; Discrete cosine transforms; Discrete wavelet transforms; Image coding; Image quality; Image sequences; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Time-Frequency and Time-Scale Analysis, 1994., Proceedings of the IEEE-SP International Symposium on

Conference_Location

Philadelphia, PA

Print_ISBN

0-7803-2127-8

Type

conf

DOI

10.1109/TFSA.1994.467225

Filename

467225