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基于运动和视差信息的立体视频质量客观评价
引用本文:马辰阳,李素梅,马瑞泽,朱丹,郭晓曦.基于运动和视差信息的立体视频质量客观评价[J].光电子.激光,2013(10):2002-2009.
作者姓名:马辰阳  李素梅  马瑞泽  朱丹  郭晓曦
作者单位:天津大学 电子信息工程学院,天津 300072;天津大学 电子信息工程学院,天津 300072;天津大学 电子信息工程学院,天津 300072;天津大学 电子信息工程学院,天津 300072;天津大学 电子信息工程学院,天津 300072
基金项目:国家“863”计划(2011AA010201,2012AA011505,2012AA03A301)、国家自然科学基金(60932007,61002028)和教育部博士点基金(20110032110029)资助项目 , 马瑞泽, 朱丹, 郭晓曦 (天津大学 电子信息工程学院,天津 300072)
摘    要:在研究人类 立体视觉特性及现有立体图像/视频质量评价算法的基础上,提出了一种基于运动信息和视 差信息的立 体视频质量的客观评价方法。方法包括视频质量评价(VQA)和视频立体感评价(VSSA)两个指 标,其中VQA的估计基于梯度的结构相似度(GSSIM) 算法,并充分考虑了帧内的亮度信息和结构信息、帧间运动信息以及人眼的感知特性对视频 质量的影响, 特别是根据人类的视觉特性,对左右视点的质量赋予了不同的权重;VSSA的估计 是通过计算参考 视频的绝对差值图和降质视频的绝对差值图之间的峰值信噪比(PSNR)而得到。实验结果表明,本文方法对基于H.264 编码的失真视频的评价结果与主观测试有较高的一致性,很好地体现人眼的视觉特性。

关 键 词:立体视频    质量评价    运动估计    结构信息    绝对差值图
收稿时间:2012/12/29 0:00:00

Objective assessment of stereo video quality based on motion and disparity information
Affiliation:School of Electronic and Information Engineering,Tianjin University,Tianjin 300072,China;School of Electronic and Information Engineering,Tianjin University,Tianjin 300072,China;School of Electronic and Information Engineering,Tianjin University,Tianjin 300072,China;School of Electronic and Information Engineering,Tianjin University,Tianjin 300072,China;School of Electronic and Information Engineering,Tianjin University,Tianjin 300072,China
Abstract:Through analyzing the characteristics of the human visual system and the existing algorithms of stereo image or video quality assessment,an objective quality evaluation method of stereo video based on motion and disparity information is proposed in this paper.The stereo video is assessed from the two aspects of video quality an d stereo sense.We follow the method of gradient-based structural similarity (GSSIM) and give full consideration to the effects of the intra-frames luminance a nd structure information, the inter-frames motion information as well as the characteristics of the human visual system on the quality of stereo video,when dealing with objective quality assessment of the st ereo video.Especially,we give different weights to the quality of left and right view,according to the ch aracteristics of the human visual system.In addition,we compute the peak signal-to-noise ratio (PSNR) bet ween the absolute disparity maps of original video sequence and distorted video sequence when assessi ng the stereo sense of the stereo video.Experiment results demonstrate that the objective assessmen t method presented in this paper gets similar results with the general subjective assessment method an d is related to the human visual system when assessing the encoded stere o video based on H.264.
Keywords:stereo video  quality assessment  motion estimation  structure inform ation  absolute disparity map
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