New Rate Control Algorithm Truncating Real Time for JPEG2000 and Its VLSI Architecture Design

WU Zong-ze; ZHENG Nan-ning; HUANG Yu; ZHU Yue-xin; MEI Kui-zhi; ZHANG Jing

您当前的位置：

首页 >

文章列表页 >

New Rate Control Algorithm Truncating Real Time for JPEG2000 and Its VLSI Architecture Design

更新时间：2025-07-16

- New Rate Control Algorithm Truncating Real Time for JPEG2000 and Its VLSI Architecture Design
- Acta Electronica Sinica Vol. 33, Issue 8, Pages: 1457-1460(2005)
- 作者机构：
  
  西安交通大学人工智能与机器人研究所,陕西,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP391
- Published：2005
- 稿件说明：
移动端阅览
WU Zong-ze, ZHENG Nan-ning, HUANG Yu, et al. New Rate Control Algorithm Truncating Real Time for JPEG2000 and Its VLSI Architecture Design[J]. Acta Electronica Sinica, 2005, 33(8): 1457-1460.
DOI：

WU Zong-ze, ZHENG Nan-ning, HUANG Yu, et al. New Rate Control Algorithm Truncating Real Time for JPEG2000 and Its VLSI Architecture Design[J]. Acta Electronica Sinica, 2005, 33(8): 1457-1460. DOI：

摘要

提出一种实时编码实时截断的码率控制算法.它根据已分解的小波子带内码块有效位平面数来预测未分解的小波子带内码块有效位平面数

并根据编码通道数和小波/量化权系数为当前编码码块分配码率.并提出一种JPEG2000编码实时截断

两级码率控制的编码体系结构.第一级采用本文提出的算法实时截断码流和编码通道.第二级在低码率下采用JPEG2000标准的PCRD优化算法搜索精确的分层截断点.在最优分层截断之前多数码流和编码通道被预先截断

存储器损耗小

实时性高.低码率下

图像质量跟JPEG2000标准一致.

Abstract

A new algorithm for JPEG2000 rate control is proposed.Code streams truncation can be fulfilled adaptively in code-block coding.The number of significant bit-planes for the code blocks in the un-analyzed subbands can be predicted using those in the analyzed subbands.Our rate control scheme could allocate the rate for the current code block based on the number of coding passes and the weights of wavelet/quantification.And the VLSI architecture including two steps rate control for JPEG2000 was proposed.Firstly the coding procession is interrupted real time through our scheme.And then code streams are truncated using PCRD optimum algorithm at a low bit-rate.The most code streams and code passes are truncated before searching the optimum truncation points

thus lead to less working memory and higher speed.At low bit-rates

the image quality using our architecture is the same as that using the method JPEG2000 provided.

关键词

Keywords

references

Views

2143

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

A Kind of Distributed Video Compression Scheme Based on Rateless Low-Density Parity-Check Codes

Single-Node SOR Method for Statistic Analysis of Power/Ground Networks

Efficient Extraction of the Frequency-Dependent K Element and Resistance of VLSI Interconnects

A LS-SVM-Based Bit Allocation Algorithm

Parallel Array VLSI Architecture Design of 2-D DWT for JPEG2000

Related Author

YIN Ming

XIE Yun

WANG Qin-ruo

CAI Shu-ting

Xu Xuan-chuan

Pan Yue-dou

Luo Zu-ying

WANG Ze-yi

Related Institution

School of Information Science and EngineeringSoutheast UniversityNanjingJiangsu 210096China

Faculty of AutomationGuangdong University of TechnologyGuangzhouGuangdong 510006China

School of Information Science and Engineering,Southeast University

Faculty of Automation,Guangdong University of Technology

College of Information Science and TechnologyBeijing Science and Technology UniversityBeijing 100082China

⁰