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An Objective Evaluation Method of Stereo Image Quality Based on Feature Map

An objective quality evaluation and stereoscopic image technology, applied in image analysis, image data processing, instruments, etc., can solve the problems of not directly viewing the disparity map and the depth perception of stereoscopic images is not very accurate

Active Publication Date: 2015-10-28
合肥永昇信息科技有限公司
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Problems solved by technology

[0003] The current objective evaluation method of stereoscopic image quality is to directly apply the planar image quality evaluation method to evaluate the quality of stereoscopic images, or to evaluate the depth perception of stereoscopic images by evaluating the quality of disparity maps. However, the process of fusion of stereoscopic images to produce stereoscopic It is not an extension of the simple planar image quality evaluation method, and the human eye does not directly view the disparity map, and it is not very accurate to evaluate the depth perception of the stereoscopic image by the quality of the disparity map

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  • An Objective Evaluation Method of Stereo Image Quality Based on Feature Map
  • An Objective Evaluation Method of Stereo Image Quality Based on Feature Map
  • An Objective Evaluation Method of Stereo Image Quality Based on Feature Map

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Embodiment Construction

[0071] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0072] A method for objective evaluation of stereoscopic image quality based on feature maps proposed by the present invention, its overall realization block diagram is as follows figure 1 As shown, the processing process is as follows: First, according to the disparity space values ​​of each pixel in the left viewpoint image of the original undistorted stereoscopic image and the corresponding coordinate position of the pixel in the right viewpoint image under multiple disparity values , to obtain the disparity space map of the original undistorted stereoscopic image, and according to each pixel in the left viewpoint image of the distorted stereoscopic image to be evaluated and the corresponding pixel point in the right viewpoint image in multiple disparity values Under the disparity space value, obtain the disparity space map of the distorted...

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Abstract

The invention discloses a stereo-image quality objective evaluation method based on a characteristic image. Parallax stereograms of an original and undistorted stereo-image and a distorted and to be evaluated stereo-image are respectively calculated, then by means of the minimum changing image which can be observed by eyes of a left eyepoint image of the distorted and to be evaluated stereo-image and a gradient of disparity image of an anaglyph between a left eyepoint image and a right eyepoint image of the original and undistorted stereo-image, a first structure similarity of the two parallax stereograms is calculated, and an objective evaluation value of the image quality of the distorted and to be evaluated stereo-image is obtained. The stereo-image quality objective evaluation method based on a characteristic image has the advantages that the obtained Parallax stereograms can well reflect the effects of different parallax on stereo-image quality, the structure similarity which is calculated and obtained according to the characteristic image can well reflect the changing conditions of stereo-image quality, the evaluation result is enabled to be more accord with a human visual system, and thereby the correlation of the objective evaluation result and the subjective perception is effectively improved.

Description

technical field [0001] The invention relates to an image quality evaluation method, in particular to an objective image quality evaluation method based on feature maps. 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 channels at the...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00
Inventor 邵枫胡朝正蒋刚毅郁梅李福翠
Owner 合肥永昇信息科技有限公司
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