No-reference video quality evaluation method based on space-time domain natural scene statistics characteristics
A technology of natural scene and statistical characteristics, applied in the direction of television, electrical components, image communication, etc., can solve the problems of dependence, type agnostic of video distortion, etc.
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[0017] Firstly, the preferred embodiments of the present invention will be described with reference to the accompanying drawings. As much as possible, the same parts in the entire drawings are represented by the same or similar symbols or words.
[0018] attached figure 1 The method framework of the present invention is shown, specifically including:
[0019] Step 1: For each frame I in the video sequence n (x, y), where n represents the frame sequence, (x, y) represents the pixel coordinates, and normalized to obtain the frame ψ n (x, y), the normalized video frame pixel values conform to the high-yield Gaussian distribution. Different from computer images and noise images, natural images have some inherent statistical properties. In order to simulate the HVS characteristics of the human eye, the researchers used some linear filters and the results showed that they did not strictly obey the Gaussian distribution, but had a long tail. Ruderman proposed a normalization me...
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