基于人感知的MPEG视频动态码流缩放块分类方法

Proceedings 1998 International Conference on Image Processing. ICIP98 (Cat. No.98CB36269) Pub Date : 1998-10-04 DOI:10.1109/ICIP.1998.727234

A. Ichikawa, Toshiyuki Yoshida, Y. Sakai

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引用次数: 0

摘要

本文提出了一种基于人类感知简单特征的图像块分类方法，用于MPEG视频的动态空间比特流缩放。首先，我们根据难以被人类感知的变形块的特征与运动向量导出的块的特征之间的关系对块进行分类。在此基础上，提出了去除DCT系数的MPEG视频码流缩放方法。在实际的媒体同步系统中使用该技术的实验表明了所提出方法的有效性。

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Block classification method based on human perception for dynamic bitstream scaling of MPEG video

This paper proposes a classification method of blocks in an image for the purpose of dynamic spatial bitstream scaling of MPEG video based on simple characteristics of human perception. First, we classify the blocks based on the relation between the characteristics of distorted blocks difficult to be perceived by human and the characteristics of blocks derived by the moving vectors. Then, based on this relation, we propose the bitstream scaling method for MPEG video by stripping off the DCT coefficients. An experiment using this techniques in an actual media synchronization system has illustrated the usefulness of the proposed approach.

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Proceedings 1998 International Conference on Image Processing. ICIP98 (Cat. No.98CB36269)

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