An objective evaluation method for close-range convergence shooting quality of a stereo camera
A technology for objective quality evaluation and objective evaluation, which is applied in stereo systems, televisions, electrical components, etc.
Inactive Publication Date: 2015-08-05
TIANJIN UNIV
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However, most of the above research results are based on the analysis and research of some camera parameters under specific preconditions, and a widely recognized standard for evaluating the quality of stereo camera shooting that fully includes camera parameters and scene parameters has not been proposed.
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[0026] The embodiments of the present invention will now be described in more detail below with reference to the accompanying drawings. However, the present invention can be embodied in different forms and should not be construed as being limited to the embodiments set forth herein. More precisely, these embodiments are provided to make the disclosure comprehensive and complete, and will fully convey the concept of the present invention to those skilled in the art.
[0027] The present invention only studies the evaluation method for close-range convergence shooting, combined with a convergence camera (such as figure 1 )'S shooting characteristics and existing shooting criteria, explored and expanded the impact of multiple stereo camera shooting parameters on image quality, and established a corresponding model. At the same time, based on the limitation of the scene parameters of the close-range convergence shooting, an objective evaluation method of the close-range convergence ...
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The invention belongs to the technical field of three-dimensional image acquisition, and relates to an objective evaluation model method for low-coverage convergent shooting quality of a three-dimensional camera. The method comprises the steps that an evaluation and grading standard of the low-coverage convergent shooting quality of the three-dimensional camera is determined, and indexes for evaluation of three-dimensional image quality are selected, wherein the shooting distance is set as h, the camera distance is set as d, the shooting distance is set as Lmin, and the field depth of a scene is set as l; the corresponding relations between the objective evaluation index value range and the three-dimensional image quality are established; three-dimensional image pairs are shot by utilizing a three-dimensional convergent camera under a low-coverage condition; according to the shot three-dimensional image pairs, the shooting distance h, the field depth of the scene l, the distance Lmin between the foreground object and the camera and the camera distance d in the low-coverage convergent shooting process of the three-dimensional camera are extracted; the objective evaluation values of the three-dimensional image pairs are calculated; the objective evaluation results of the shot three-dimensional image pairs are obtained. According to the method, the three-dimensional image quality in the low-coverage shooting process of the three-dimensional camera can be effectively evaluated.
Description
Technical field [0001] The invention belongs to the technical field of three-dimensional image acquisition, and in particular relates to a method for objectively evaluating the quality of close-range convergence shooting of a stereo camera. Background technique [0002] With the development of three-dimensional technology, the processing technology of three-dimensional (3D) images is becoming more and more mature, and there are increasing sources of three-dimensional images in countries all over the world, satisfying people's desire to see 3D images on the screen. However, when people watch certain film sources, they will experience dizziness, nausea, and loss of body balance. Many people blame it on the lack of stereoscopic image processing technology or display technology. Therefore, the related stereoscopic image processing and display technology have been developed. Research and establish a corresponding evaluation theory system. However, these evaluation systems still canno...
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IPC IPC(8): H04N17/00H04N13/00
Inventor 刘允杨嘉琛楚容容
Owner TIANJIN UNIV