Three-dimensional image quality objective evaluation method based on energy diagrams

A technology for objective quality evaluation and stereoscopic images, applied in image analysis, image data processing, instruments, etc., can solve problems such as lack of

CN102999911BInactive Publication Date: 2015-06-03NINGBO UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2015-06-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a three-dimensional image quality objective evaluation method based on energy diagrams. The three-dimensional image quality objective evaluation method includes: firstly respectively calculating energy diagrams on different scales and directions of original undistorted three-dimensional images and energy diagrams on different scales and directions of fuzzy three-dimensional images to be evaluated to obtain the objective evaluation metrics of each pixel point of the fuzzy three-dimensional images to be evaluated, and then performing fusion on the objective evaluation metrics of each pixel point of the fuzzy three-dimensional images to be evaluated according to the energy diagrams and binocular minimum perceptible changing images to obtain image quality objective evaluation predicted values of the fuzzy three-dimensional images to be evaluated. The three-dimensional image quality objective evaluation method has the advantages of being capable of well reflecting visual perception characteristics of human visual systems by obtaining the energy diagrams of different scales and directions, performing fusion on the energy diagrams and the minimum perceptible changing images, and being capable of effectively improving objective evaluation results and correlation of subjective perception.
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Description

technical field

[0001] The invention relates to an image quality evaluation method, in particular to an energy map-based objective evaluation method for stereoscopic image quality. Background technique

[0002] With the rapid development of image coding technology and stereoscopic display technology, stereoscopic image technology has received more and more attention and applications, and has become a current research hotspot. Stereoscopic image technology utilizes the binocular parallax principle of the human eye. Both eyes independently receive left and right viewpoint images from the same scene, and form binocular parallax through brain fusion, so as to enjoy a stereoscopic image with a sense of depth and realism. Due to the influence of acquisition system, storage compression and transmission equipment, stereoscopic images will inevitably introduce a series of distortions. Compared with single-channel images, stereoscopic images need to ensure the image quality of two cha...

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Embodiment Construction

[0058] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0059] An objective evaluation method for stereoscopic image quality based on an energy map proposed by the present invention, its overall realization block diagram is as follows figure 1 As shown, its processing process is as follows: firstly, according to the even symmetric frequency response and odd symmetric frequency response of each pixel in different scales and directions in the left view point image and right view point image of the original undistorted stereoscopic image, and The pixel value of each pixel in the disparity image between the left viewpoint image and the right viewpoint image of the original undistorted stereoscopic image, and obtain the energy maps of the original undistorted stereoscopic image at different scales and directions, and according to the The even symmetric frequency response and the odd symmetric frequency ...