数字视频中阻塞伪影的失真测量方法

信息通信技术 Pub Date : 1997-09-09 DOI:10.1109/ICICS.1997.652257

S. Suthaharan, H.R. Wu

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引用次数: 3

摘要

针对各种数字图像和视频编码标准中基于块的编码机制中存在的一个普遍问题，提出了一种测量块伪影的方法。在该方法中，基于视频图像相邻块之间的定向像素间差异，对定量失真度量，即广义块边缘损伤度量(GBIM)进行了改进，以适应局部统计特征。这种改进的块边缘损伤度量(MGBIM)给出的结果是一致的，并与主观评价高度相关。

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A distortion measure for blocking artifacts in digital video

A method is proposed to measure the blocking artifact which is a common problem in block-based coding mechanisms used in various digital image and video coding standards. In this method, the quantitative distortion measure, the generalized block-edge impairment metric (GBIM), is modified to accommodate the local statistical characteristics, based on directional inter-pixel differences between adjoining blocks, of a video image. This modified block-edge impairment metric (MGBIM) gives results which are consistent and highly correlated with subjective evaluations.

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来源期刊

信息通信技术

自引率

0.00%

发文量

1369

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