Objective method for assessment of video quality using wavelets

Ohjae Kwon, Chulhee Lee
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引用次数: 7

Abstract

In this paper, we propose a new objective method for assessment of video quality. The method is based on a recursive biorthogonal wavelet transform and is the double-ended objective video quality assessment method capable of receiving as input a processed video sequence and its corresponding source video sequence. We apply 2D wavelet transform to frames of video sequences. After the wavelet decomposition, each frame is divided into several subbands corresponding to spatial frequencies and this would make it possible to take into account the sensitivity of human visual system to stimuli of different spatial frequencies. Then we obtain an objective quality score by computing PSNR from weighted sum of the squared errors of subbands.
基于小波的视频质量客观评价方法
本文提出了一种新的视频质量客观评价方法。该方法基于递归双正交小波变换,是一种能够接收处理后的视频序列及其对应的源视频序列作为输入的双端客观视频质量评估方法。将二维小波变换应用于视频序列的帧。经过小波分解后,每一帧被划分为与空间频率相对应的几个子带,这样就可以考虑到人类视觉系统对不同空间频率刺激的敏感性。然后通过子带误差平方和加权计算PSNR,得到客观的质量分数。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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