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Image visual saliency detection method based on division normalization

An image vision and detection method technology, applied in image enhancement, image analysis, image data processing and other directions, can solve the problem of large gap between saliency map and human visual perception, and achieve the effect of clear shape, simple and efficient calculation

Active Publication Date: 2017-10-03
YUNNAN UNIV
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Problems solved by technology

Although the steps of this method are very simple and full-resolution saliency maps can be obtained, it is not designed according to the formation mechanism of visual saliency, so the saliency map has a large gap with human visual perception

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  • Image visual saliency detection method based on division normalization
  • Image visual saliency detection method based on division normalization
  • Image visual saliency detection method based on division normalization

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Embodiment Construction

[0042] The present invention will be further described below by example. It should be noted that the purpose of the disclosed embodiments is to help further understand the present invention, but those skilled in the art can understand that various replacements and modifications are possible without departing from the spirit and scope of the present invention and the appended claims of. Therefore, the present invention should not be limited to the content disclosed in the embodiments, and the protection scope of the present invention is subject to the scope defined in the claims.

[0043] figure 1 It is a processing flowchart of the image visual saliency calculation method based on division normalization in the present invention, including:

[0044] The first step is to transform the input image into the CIE1976 L*a*b* color space

[0045] Transform a color input image of size M×N pixels from RGB color space to CIE1976 L*a*b* color space. The input image is transformed to p...

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Abstract

The invention discloses an image visual saliency detection method based on division normalization, and belongs to the field of automatic calculation of bottom-up visual saliency. The method uses the color and brightness features of each pixel to calculate its visual salience, and uses the division normalization calculation to simulate the mutual inhibition of neurons with similar detection features in the primary visual cortex, which is biologically reasonable. Compared with the traditional saliency calculation method, the invention is simple and efficient in calculation, can accurately detect the visual saliency caused by the color difference, and the saliency value of the saliency area is enhanced as a whole, and the obtained image visual saliency map has a clear shape.

Description

technical field [0001] The invention belongs to the field of automatic calculation of bottom-up visual salience, and in particular relates to an image visual saliency detection method based on division and normalization. Background technique [0002] The neural resources of the human brain are limited, and it cannot process all visual perception information at the same time. Visual attention is an important visual information processing mechanism, which allows only a small amount of visual perceptual information to enter the higher cortex for processing, such as short-term memory, visual awareness, recognition and learning. Visual saliency is a characteristic of visual perception, which can make a prominent target or area stand out from a complex visual scene, thereby attracting our visual attention. Some visual attention is formed by scene-dependent or bottom-up visual salience, while other visual attention is controlled by task-dependent or top-down visual salience. [0...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/90
CPCG06T7/11G06T7/90G06T2207/10024G06V10/25G06V10/462
Inventor 余映林洁杨鉴
Owner YUNNAN UNIV
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