Rate-distortion optimization algorithm for JPEG 2000

被引：0

作者：

Kim, T ^{[1
]}

Kim, HM ^{[1
]}

Tsai, PS ^{[1
]}

Acharya, T ^{[1
]}

机构：

[1] Intel Corp, Chandler, AZ 85226 USA

来源：

MATHEMATICS OF DATA/IMAGE CODING, COMPRESSION, AND ENCRYPTION V, WITH APPLICATIONS | 2002年 / 4793卷

关键词：

image compression; JPEG; 2000; rate-distortion optimization;

D O I：

暂无

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

A novel rate-distortion optimization algorithm for JPEG 2000 is proposed. This algorithm meets memory buffer requirement for the compressed bit streams quite strictly according to a given bit rate. Moreover, before the encoding process even starts, a required memory buffer size can be estimated. This algorithm can also help avoid unnecessary encoding for some parts of an image. In this sense, it is memory efficient and performs progressive encoding. While a rate-distortion optimization algorithm is generally applied after complete encoding procedures for images in JPEG 2000, the proposed algorithm can save both memory requirement and encoding time significantly at low bit rate by avoiding complete encoding.

引用

页码：36 / 41

页数：6

共 5 条

[1] Image coding using wavelet transform [J].