基于块连续性的自适应帧差预测3D-DCT编码*

北京邮电大学学报 ›› 1999, Vol. 22 ›› Issue (1): 38-42.

• 分层与分割概念及其在ATM网管系统中的应用 • 上一篇下一篇

基于块连续性的自适应帧差预测3D-DCT编码^*

许晓燕, 李莉莎, 张家谋

北京邮电大学电信工程学院, 北京 100876

收稿日期:1998-04-06 出版日期:1999-01-10
基金资助:
国家自然科学基金资助项目(69672037)

An Adaptive Inter-Frame 3D-DCT Coding Based on#br# the Continuity of a Series of Blocks

Xu Xiaoyan Li Lisha Zhang Jiamou

School of Telecommunication Engineering, Beijing University of Posts andTelecommunications, Beijing 100876

Received:1998-04-06 Online:1999-01-10

摘要/Abstract

摘要： 提出的三维变换编码克服了以往运动补偿帧差预测和二维变换的局限性, 在保证一定质量的前提下, 大大提高了压缩比.而块连续性自适应概念的引入, 更好地适应了图像序列的整体和局部变化特征, 进一步提高了编码效率和图像质量.

关键词: 自适应编码, 三维离散余弦变换, 块连续性

Abstract: An adaptive inter-frame 3D-DCT coding based on thecontinuity of a series of blocks is proposed.3D-DCT coding overcomes the limitations of other motion estimation-based interframe predictive and2D-DCT image compression coding, it can enhance the compression ratio greatlywhile guarantee the image quality.Meanwhile, the introduction of the adaptive coding based on the continuity of a series of blocks matches HVS better, improves the image quality and coding efficiency further.

Key words: adaptive coding, 3D-DCT, the continuity of a series of blocks

中图分类号:

TN911.22

许晓燕, 李莉莎, 张家谋. 基于块连续性的自适应帧差预测3D-DCT编码^*[J]. 北京邮电大学学报, 1999, 22(1): 38-42.

Xu Xiaoyan Li Lisha Zhang Jiamou. An Adaptive Inter-Frame 3D-DCT Coding Based on#br# the Continuity of a Series of Blocks[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 1999, 22(1): 38-42.

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基于块连续性的自适应帧差预测3D-DCT编码^*

An Adaptive Inter-Frame 3D-DCT Coding Based on#br# the Continuity of a Series of Blocks

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