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首页> 外文会议>Image Quality and System Performance IV; Proceedings of SPIE-The International Society for Optical Engineering; vol.6494; Electronic Imaging Science and Technology >Objective video quality assessment method for evaluating effects of freeze distortion in arbitrary video scenes
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Objective video quality assessment method for evaluating effects of freeze distortion in arbitrary video scenes

机译：评估任意视频场景中冻结失真影响的客观视频质量评估方法

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摘要

With the development of the broadband IP networks, video distribution, streaming, and communication services over networks are rapidly becoming common. To provide these services appropriately, we must design, monitor, and manage their quality based on subjective video quality. Therefore, we need an objective quality assessment method that enables video quality to be evaluated from video characteristics easily and quickly. We have already proposed an objective video quality assessment method for freeze distortion in network video services by considering the perceptual characteristics of short freeze distortion. In this previous method, we derived the objective video quality under the assumption that all freeze lengths in the video are constant. However, it was impossible to derive objective video quality when arbitrary freeze lengths occur because of network degradation in real services. We propose an objective video quality assessment method for arbitrary freeze lengths by extending the previous method and confirm that it can estimate subjective video quality with good accuracy for real applications. The correlation coefficient between subjective and objective quality is 0.94.
机译：随着宽带IP网络的发展，网络上的视频分发，流传输和通信服务正在迅速普及。为了适当地提供这些服务，我们必须基于主观视频质量来设计，监视和管理它们的质量。因此，我们需要一种客观的质量评估方法，该方法可以根据视频特征轻松快速地评估视频质量。考虑到短时冻结失真的感知特性，我们已经提出了一种针对网络视频服务中冻结失真的客观视频质量评估方法。在此先前方法中，我们在假定视频中所有冻结长度均恒定的前提下得出了客观视频质量。但是，由于实际服务中的网络性能下降，当出现任意冻结长度时，无法得出客观的视频质量。我们通过扩展先前的方法，提出了一种针对任意冻结长度的客观视频质量评估方法，并确认它可以为实际应用准确估计主观视频质量。主观质量与客观质量之间的相关系数为0.94。

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