A simplified algorithm of JPEG2000 rate control for VLSI implementation

被引：0
|
作者：
Qin, X [1 ]
Yan, XL [1 ]
Ge, HT [1 ]
Yang, Y [1 ]
机构：
[1] Zhejiang Univ, Inst VLSI Design, Hangzhou 310027, Peoples R China
来源：
2005 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS), VOLS 1-6, CONFERENCE PROCEEDINGS | 2005年
关键词：
D O I：
10.1109/ISCAS.2005.1466085
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：
It is an effective speedup technology in JPEG2000 VLSI implementation to integrate the rate control with Tier-1 encoding. For VLSI implementation, a simplified rate-distortion optimization rate control algorithm is proposed. The algorithm includes component bit allocation based on weights, a simplified delta-distortion estimation model and two-table optimal slope threshold generation. Compared with the existing one, the algorithm has some merits: code-block memory access free, less memory requirement, lower computation complexity, with about 0.3dB decrease of image quality.
引用
收藏
页码：6316 / 6319
页数：4
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