A perceptual video quality model for mobile platform considering impact of spatial, temporal, and amplitude resolutions

2011 IEEE 10th IVMSP Workshop: Perception and Visual Signal Analysis Pub Date : 2011-06-16 DOI:10.1109/IVMSPW.2011.5970365

Yen-Fu Ou, Yuanyi Xue, Zhan Ma, Yao Wang

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引用次数: 27

Abstract

In this paper, we investigate the impact of spatial, temporal and amplitude resolution (STAR) on the perceptual quality of a compressed video. Subjective quality tests were carried out on the TI Zoom2 mobile development platform (MDP). Seven source sequences are included in the tests and for each source sequence we have 32 test configurations generated by JSVM encoder (4 QP levels, 5 spatial resolutions, and 3 temporal resolutions) and a total of 224 processed video sequences (PVSs). Videos coded at different spatial resolutions are displayed at the full screen size of the mobile platform. We report the impact of the spatial resolution (SR), temporal resolution (TR) and quantization stepsize (QS) on the perceptual quality, individually as well as jointly. We found that the impact of SR, TR and QS can each be captured by a function with a single content-dependent parameter. The joint impact of SR, TR and QS can be modeled by the product of these three functions. The complete model correlates well with the subjective ratings with a Pearson Correlation Coefficient (PCC) of 0.99.

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考虑空间、时间和振幅分辨率影响的移动平台感知视频质量模型

在本文中，我们研究了空间、时间和幅度分辨率(STAR)对压缩视频的感知质量的影响。在TI Zoom2移动开发平台(MDP)上进行主观质量测试。测试中包括7个源序列，对于每个源序列，我们有32个由JSVM编码器生成的测试配置(4个QP级别，5个空间分辨率和3个时间分辨率)和总共224个处理过的视频序列(pvs)。以不同空间分辨率编码的视频以移动平台的全屏尺寸显示。我们报告了空间分辨率(SR)、时间分辨率(TR)和量化步长(QS)对感知质量的影响，无论是单独的还是共同的。我们发现，SR、TR和QS的影响都可以通过一个具有单一内容相关参数的函数来捕获。SR、TR和QS的共同影响可以用这三个函数的乘积来建模。完整模型与主观评分具有良好的相关性，Pearson相关系数(PCC)为0.99。

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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2011 IEEE 10th IVMSP Workshop: Perception and Visual Signal Analysis

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