Influence of Network Delay on Quality of Experience in Free-Viewpoint Video Transmission
Influence of Network Delay on Quality of Experience in Free-Viewpoint Video Transmission
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DOI：
10.3169/itej.65.1742
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
A. Tatematsu;Bohai Liu;Norishige Fukushima;Y. Ishibashi
中科院分区：
文献类型：
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作者：
A. Tatematsu;Bohai Liu;Norishige Fukushima;Y. Ishibashi
我们通过进行体验质量（QoE）评估来研究网络延迟对自由视点视频传输中视点转换的影响。我们讨论了两种传输方法：合成图像传输和深度图像传输。我们将图像质量、变换视点交互性和综合质量作为QoE因素进行评估。评价结果表明，合成图像传输的图像质量高于深度和图像传输，在交互性方面具有优势。另外，由于两种方法之间的优劣关系取决于渲染过程中所使用的视频内容和摄像机作品的特点，对于综合质量而言，我们应该根据情况从两种方法中选择一种合适的方法。
We investigated the effect of network delay on changing viewpoint in free-viewpoint video transmission by conducting a Quality of Experience (QoE) assessment. We address two transmission methods: synthesized image transmission and depth and image transmission. We assessed the image quality, interactivity of changing viewpoint, and comprehensive quality as QoE factors. The assessment results indicate that the image quality of the synthesized image transmission is higher than that of the depth and image transmission, which is advantageous in terms of interactivity. Also, because the inferior-to-superior relationship between the two methods depends on the characteristics of the video content and camera work used in the rendering process for the comprehensive quality, we should choose one suitable method from the two methods according to the situation.