Very fast JPEG compression using hierarchical vector quantization

被引：6

作者：

de Queiroz, RL ^{[1
]}

Fleckenstein, P

机构：

[1] Xerox Corp, Webster, NY 14580 USA

[2] Rochester Inst Technol, Rochester, NY 14623 USA

来源：

IEEE SIGNAL PROCESSING LETTERS | 2000年 / 7卷 / 05期

关键词：

D O I：

10.1109/97.841151

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We derive a JPEG compliant image compressor, which is based on hierarchical vector quantization (HVQ). The goal is to reduce complexity while increasing compression speed, For each block, the DCT IDC coefficient is encoded in the regular way, while the residual is mapped through HVQ to a precomputed bit stream corresponding to the compressed DCT AC coefficients. Approximation quality is generally good for high compression ratios. Color Fax is one possible application target for the proposed system.

引用

页码：97 / 99

页数：3