An embedded DCT approach to progressive image compression

Author

Li, Jiankun ; Li, Jin ; Kuo, C. -C Jay

Author_Institution

Dept. of Electr. Eng. Syst., Univ. of Southern California, Los Angeles, CA, USA

Volume

1

fYear

1996

fDate

16-19 Sep 1996

Firstpage

201

Abstract

Motivated by Shapiro´s (see IEEE Trans. on Signal Processing, vol.41, no.12, p. 3445-62, 1993) embedded zerotree wavelet coding (EZW) and Taubman and Zakhor´s (see IEEE Trans. on Image Processing, vol.3, no.3, p.572-88, 1994) layered zero coding (LZC), we propose a layered DCT image compression scheme, which generates an embedded bit stream for DCT coefficients according to their importance. The new method allows progressive image transmission and simplifies the rate-control problem. In addition to these functionalities, it provides a substantial rate-distortion improvement over the JPEG standard when the bit rates become low. For example, we observe a bit rate reduction with respect to the JPEG Huffman and arithmetic coders by about 60% and 20%, respectively, for a bit rate around 0.1 bpp

Keywords

data compression; discrete cosine transforms; image coding; rate distortion theory; transform coding; visual communication; DCT coefficients; JPEG Huffman coders; JPEG arithmetic coder; JPEG standard; arithmetic coders; bit rate reduction; embedded DCT; embedded bit stream; embedded zerotree wavelet coding; layered DCT image compression; layered zero coding; progressive image compression; progressive image transmission; rate control; rate distortion; Arithmetic; Bit rate; Discrete cosine transforms; Image coding; Image communication; Image processing; Rate-distortion; Signal processing; Streaming media; Transform coding;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 1996. Proceedings., International Conference on

Conference_Location

Lausanne

Print_ISBN

0-7803-3259-8

Type

conf

DOI

10.1109/ICIP.1996.559468

Filename

559468