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Visual perception-based three-dimensional image quality objective evaluation method

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

Inactive Publication Date: 2012-10-03
NINGBO UNIV
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Problems solved by technology

However, there is currently no effective objective evaluation method for stereoscopic image quality

Method used

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  • Visual perception-based three-dimensional image quality objective evaluation method
  • Visual perception-based three-dimensional image quality objective evaluation method
  • Visual perception-based three-dimensional image quality objective evaluation method

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Embodiment Construction

[0070] The present invention will be described in further detail below in conjunction with the embodiments of the drawings.

[0071] The present invention proposes a method for objectively evaluating stereoscopic image quality based on visual perception, and its overall implementation block diagram is as follows figure 1 As shown, it includes the following steps:

[0072] ① Let S org Is the original distortion-free stereo image, let S dis For the distorted stereo image to be evaluated, set S org The left view point image is denoted as {L org (x,y)}, put S org The right viewpoint image of is denoted as {R org (x,y)}, put S dis The left view point image is denoted as {L dis (x,y)}, put S dis The right viewpoint image of is denoted as {R dis (x,y)}, where (x,y) represents the coordinate position of the pixel in the left and right view images, 1≤x≤W, 1≤y≤H, and W represents the left view image and the right view point The width of the image, H represents the height of the left vie...

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Abstract

The invention discloses a visual perception-based three-dimensional image quality objective evaluation method which comprises the steps of: firstly, obtaining an objective evaluation measurement value of each pixel point through calculating a local phase characteristic and a local amplitude characteristic of each pixel point in left and right viewpoint images of a three-dimensional image, dividing the three-dimensional image into a shielding region, a binocular inhibition region and a binocular fusion region by a region detection method; and secondly, evaluating all regions respectively and fusing evaluation results to obtain a final image quality objective evaluation prediction value. The visual perception-based three-dimensional image quality objective evaluation method has the advantages that the obtained information for reflecting local phase and local amplitude characteristics has strong stability and can well reflect quality change condition of the three-dimensional image, and the image quality evaluation method of the shielding region, the binocular inhibition region and the binocular fusion region can well reflect the visual perception characteristic of the human visual system, and is effectively improved in correlation of objective evaluation result and subjective perception.

Description

Technical field [0001] The invention relates to an image quality evaluation method, in particular to a stereoscopic image quality objective evaluation method based on visual perception. Background technique [0002] With the rapid development of image coding technology and stereo display technology, stereo image technology has received more and more attention and applications, and has become a current research hotspot. Stereoscopic image technology uses the principle of binocular parallax of the human eye. The binoculars independently receive the left and right viewpoint images from the same scene, and the binocular parallax is formed through brain fusion, so that you can enjoy the stereoscopic image with a sense of depth and life. Due to the influence of the 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 qua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
Inventor 邵枫顾珊波郁梅蒋刚毅李福翠
Owner NINGBO UNIV
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