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A reduced-reference perceptual image and video quality metric based on edge preservation

机译：基于边缘保留的缩减参考感知图像和视频质量度量

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In image and video compression and transmission, it is important to rely on an objective image/video quality metric which accurately represents the subjective quality of processed images and video sequences. In some scenarios, it is also important to evaluate the quality of the received video sequence with minimal reference to the transmitted one. For instance, for quality improvement of video transmission through closed-loop optimisation, the video quality measure can be evaluated at the receiver and provided as feedback information to the system controller. The original image/video sequence--prior to compression and transmission--is not usually available at the receiver side, and it is important to rely at the receiver side on an objective video quality metric that does not need reference or needs minimal reference to the original video sequence. The observation that the human eye is very sensitive to edge and contour information of an image underpins the proposal of our reduced reference (RR) quality metric, which compares edge information between the distorted and the original image. Results highlight that the metric correlates well with subjective observations, also in comparison with commonly used full-reference metrics and with a state-of-the-art RR metric.
机译：在图像和视频的压缩和传输中，重要的是要依靠客观的图像/视频质量度量标准，该度量标准可以准确表示已处理图像和视频序列的主观质量。在某些情况下，评估接收到的视频序列的质量并尽可能少参考传输的视频序列也很重要。例如，为了通过闭环优化提高视频传输的质量，可以在接收器处评估视频质量度量，并将其作为反馈信息提供给系统控制器。原始图像/视频序列（在压缩和传输之前）通常在接收器端不可用，因此重要的是，在接收器端依赖客观的视频质量指标，该指标不需要参考或需要最少参考原始视频序列。人眼对图像的边缘和轮廓信息非常敏感的观察结果支持了我们的降低参考（RR）质量度量的提议，该度量比较失真图像和原始图像之间的边缘信息。结果突出表明，该度量标准与主观观察密切相关，并且与常用的完全参考度量标准和最新的RR度量标准相比也是如此。

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