A No-reference Blurred Distortion Stereo Image Quality Evaluation Method

Abstract

The invention discloses a no-reference fuzzy distorted stereo image quality evaluation method, which comprises the following steps: in a training stage, selecting a plurality of undistorted stereo images and corresponding fuzzy distorted stereo images to form a training image set; then, carrying out a dictionary training operation by a Fast-ICA (independent component analysis) method, and constructing a visual dictionary table of each image in the training image set; constructing the visual quality table of the visual dictionary table of each distorted stereo image by calculating a distance between the visual dictionary table of each undistorted stereo image and the visual dictionary table of each corresponding fuzzy distorted stereo image; in a testing stage, for any one tested stereo image, carrying out non-overlapping partitioning processing to a left sight point image and a right sight point image of the tested stereo image; and according to the constructed visual dictionary table and the constructed visual quality table, obtaining an objective evaluation prediction value of the image quality of the tested stereo image. The no-reference fuzzy distorted stereo image quality evaluation method has the advantages of low computation complexity and good relevance between an objective evaluation result and subjective perception.

Description

technical field [0001] The invention relates to an image quality evaluation method, in particular to a reference-free fuzzy distortion stereoscopic image quality evaluation method. Background technique [0002] With the rapid development of image coding technology and stereoscopic display technology, stereoscopic image technology has received more and more extensive attention and application, and has become a current research hotspot. Stereoscopic image technology utilizes the principle of binocular parallax of the human eye. Both eyes independently receive the left and right viewpoint images from the same scene, and form binocular parallax through brain fusion, so as to enjoy the stereoscopic image with a sense of depth and realism . Compared with single-channel images, stereo images need to ensure the image quality of two channels at the same time, so it is very important to evaluate the quality of them. However, there is currently a lack of effective objective evaluatio...

AI Technical Summary

Problems solved by technology

The current no-reference quality evaluation usually uses machine learning to predict the evaluation model, which has high computational complexity, and the training model needs to predict the subjective evaluation value of each evaluation image, which is not suitable for practical applications and has certain limitations.

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