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Image salient region detection method

A saliency and image technology, applied in the field of image processing, can solve the problem of inaccurate estimation of image saliency

Inactive Publication Date: 2015-03-25
UNIVERSITY OF CHINESE ACADEMY OF SCIENCES
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Problems solved by technology

However, although the geodesic distance measurement method used in the above method is reasonable, when dealing with images with large background changes or rich textures, due to the accumulation of contrast in texture regions, the saliency estimation of the image by this method will be difficult. Inaccurate, as shown in Figure 2(c) (original image) and 2(d) (saliency map)

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Embodiment Construction

[0059] The present invention will be described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0060] According to an embodiment of the present invention, a method for detecting a salient area of ​​an image is provided.

[0061] In a nutshell, the method includes: performing background estimation on the image after superpixel segmentation; obtaining the background contrast of each superpixel according to the color difference between each superpixel in the image and the superpixel in the background estimation; The background contrast of pixels is obtained to obtain superpixel saliency maps.

[0062] The following will combine image 3 Each step of the method is described in detail.

[0063] Step 1: Texture blurring the input image

[0064] In order to remove small changes in the background of...

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Abstract

The invention provides an image salient region detection method. The method includes the steps that background estimation is conducted on an image generated after super pixel partition is conducted; the contrast ratio of all super pixels and the background is obtained according to the color difference of all the super pixels in the image and the super pixels in the background estimation; a super pixel saliency map is obtained according to the contrast ratio of all the super pixels and the background. By means of the image salient region detection method, robustness can be conducted on background noise of the image and the like, and calculation is easy and fast to conduct.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method for detecting salient areas of an image. Background technique [0002] Among all human senses, at least 70% of external information is obtained through the visual system. Biological visual systems, including the human visual system, can automatically select and attend to a small number of "relevant" locations in a scene. For a given input image, as shown in Fig. 1(a), Fig. 1(b) shows the annotation of its salient regions. When observing, the human eye will pay more attention to the red flowers in the foreground, while sweeping away the green leaves and other background areas. The process of the biological visual system that can quickly focus on a few salient visual objects when facing natural scenes is called visual attention selection. This ability allows biological organizations to concentrate their limited sensory and cognitive resources on the most releva...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T7/60
CPCG06T7/11
Inventor 卿来云苗军帅佳玫黄庆明
Owner UNIVERSITY OF CHINESE ACADEMY OF SCIENCES
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