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Three-dimensional image visual saliency map extraction method

A technology of stereoscopic images and extraction methods, which is applied in the directions of image communication, stereoscopic systems, electrical components, etc.

Active Publication Date: 2014-12-24
湖州优研知识产权服务有限公司
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Problems solved by technology

[0003] However, the process of human perception of stereoscopic images to produce stereoscopic vision is not a simple process of superimposing images from left and right viewpoints. Therefore, stereoscopic features (for example, 3D visual attention) are not a simple extension of planar vision features. Effectively extracting stereoscopic features and how to make the extracted stereoscopic features conform to the three-dimensional viewing behavior of human eyes are all problems that need to be studied and solved in the process of extracting visual saliency maps from stereoscopic images

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[0062] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0063] A method for extracting visual saliency maps of stereoscopic images proposed by the present invention, its overall realization block diagram is as follows figure 1 As shown, it includes two processes, the training phase and the testing phase, and the specific steps are as follows:

[0064] ① Select N sets of stereoscopic images with different sizes and the same size and the right disparity image corresponding to each stereoscopic image to form a training image set, denoted as {L i , R i , d i |1≤i≤N}, wherein, N≥1, in this embodiment, N=120, L i means {L i , R i , d i |1≤i≤N} in the left view image of the i-th stereo image, R i means {L i , R i , d i |1≤i≤N} in the right view point image of the i-th stereo image, d i means {L i , R i , d i The right disparity image corresponding to the i-th stereo image in |1≤i≤N}.

[006...

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Abstract

The invention discloses a three-dimensional image visual saliency map extraction method. The method includes the steps of firstly, establishing a relation model of the visual comfort degree characteristics and the visual comfort degree prediction values of a three-dimensional image through training; secondly, predicting the visual comfort degree of the three-dimensional image through the relation model so as to obtain a visual comfort degree saliency map; thirdly, extracting a two-dimensional saliency map of the three-dimensional image through a visual saliency model based on the graph theory; fourthly, obtaining a deep saliency map of the three-dimensional image according to the space similarity and the parallax similarity between regions; fifthly, fusing the two-dimensional saliency map, the deep saliency map and the visual comfort degree saliency map to obtain the final three-dimensional visual saliency map. The method has the advantage that the obtained three-dimensional visual saliency map can well conform to the characteristics of the saliency semanteme.

Description

technical field [0001] The invention relates to a method for processing image signals, in particular to a method for extracting visual saliency maps of stereoscopic images. Background technique [0002] In human visual reception and information processing, due to limited brain resources and differences in the importance of external environmental information, the human brain does not treat external environmental information equally in the processing process, but shows selective characteristics. When people watch images or video clips, their attention is not evenly distributed to every area of ​​the image, but they pay more attention to certain salient areas. How to detect and extract salient regions with high visual attention in videos is an important research content in the field of computer vision and content-based video retrieval. [0003] However, the process of human perception of stereo images to produce stereo vision is not a simple process of superimposing left and r...

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Application Information

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IPC IPC(8): H04N13/00
Inventor 邵枫姜求平郁梅李福翠
Owner 湖州优研知识产权服务有限公司
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