Perceptual video quality metric for compression artefacts: from two-dimensional to omnidirectional
Perceptual video quality metric for compression artefacts: from two-dimensional to omnidirectional
复制标题
压缩伪影的感知视频质量指标：从二维到全向
DOI：
10.1049/iet-ipr.2017.0826
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发表时间：
2017-11
影响因子：
2.3
通讯作者：
Wan Shuai
中科院分区：
文献类型：
--
作者：
Zou Wenjie;Yang Fuzheng;Wan Shuai
在这项研究中，感知视频质量（PVQ）的时尚360度视频与压缩伪影上观看的视觉现实（VR）头戴式显示器（HMD）的第一次通过精心设计的主观实验。然后研究了VR HMD和PC显示器上全方位（360度）视频的PVQ特性。HMD上的PVQ被发现与PC显示器上的视频编码质量（VCQ）线性相关。在此基础上，提出了一种新的质量评价模型，该模型考虑了视频分辨率和显示设备对视频质量的影响。以这种方式，可以扩展用于二维视频的传统视频质量评估度量以评估在HMD上观看的360度视频的PVQ。最后，以视频结构相似性度量为例，预测了该模型的输入，即360度视频的VCQ。实验结果表明，该模型可以有效、方便地解决头盔显示器上360度视频压缩失真的PVQ评估问题。
In this study, the perceptual video quality (PVQ) for the vogue 360-degree video with compression artefacts viewed on the visual reality (VR) head-mounted display (HMD) is obtained for the first time by an elaborately designed subjective experiment. The characteristic of the PVQ of omnidirectional (360-degree) video on the VR HMD and PC monitor is then investigated. The PVQ on the HMD is found to be linearly related to the video coding quality (VCQ) on the PC monitor. A quality evaluation model is then proposed based on the mapping formula and a new assessment parameter, where the impact of the video resolution and display device is involved. In this way, the traditional video quality assessment metrics for two-dimensional video can be extended to assess the PVQ of the 360-degree video viewed on the HMD. At last, the video structural similarity metric is taken as an example to predict the input of the proposed model, i.e. the VCQ of the 360-degree video. Experimental results demonstrate that the proposed model can effectively and conveniently solve the challenge of PVQ assessment for the 360-degree video with compression distortions on the HMD.
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影响因子：
2.5
作者：
Robert V. Brill
通讯作者：
Robert V. Brill
影响因子：
11.2
作者：
Fuzheng Yang;Shuai Wan
通讯作者：
Fuzheng Yang;Shuai Wan
DOI：
10.1117/12.2235885
发表时间：
2016-09
期刊：
--
影响因子：
--
作者：
Vladyslav Zakharchenko;K. Choi;Jeonghoon Park
通讯作者：
Vladyslav Zakharchenko;K. Choi;Jeonghoon Park
影响因子：
2.5
作者：
E. Ziegel
通讯作者：
E. Ziegel
影响因子：
1.1
作者：
Huynh-Thu, Q.;Ghanbari, M.
通讯作者：
Ghanbari, M.