The U-VLC VLSI implementation of a universal variable length coder

Author

Descamps, Luc ; Lizin, Gilbert

Author_Institution

Societe de Microelectronique, Charleroi, Belgium

fYear

1992

fDate

1-5 Jun 1992

Firstpage

284

Lastpage

287

Abstract

The transform coding scheme is known as one of the most efficient image compression coding methods. The bit rate reduction of the quantified transformed blocks is processed by a variable length coder (VLC) in a reversible way. The paper outlines an implementation of a universal-VLC (U-VLC) based on the adaptive truncated run length coding (ATRL). The algorithm is defined as universal in the sense that it is not dependent on the source statistics and the output bit rate is close to the entropy of the quantified transformed coefficients. The U-VLC allows the coding of a large range of video pictures without any modification of the algorithm

Keywords

codecs; data compression; image coding; video signals; ATRL; U-VLC; VLSI implementation; adaptive truncated run length coding; algorithm; bit rate reduction; image compression coding; implementation; quantified transformed blocks; transform coding scheme; universal variable length coder; video pictures; Asynchronous transfer mode; Bit rate; Discrete cosine transforms; Discrete transforms; Entropy; ISDN; Image coding; Image converters; Statistics; Very large scale integration;

fLanguage

English

Publisher

ieee

Conference_Titel

Euro ASIC '92, Proceedings.

Conference_Location

Paris

Print_ISBN

0-8186-2845-6

Type

conf

DOI

10.1109/EUASIC.1992.228039

Filename

228039