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Edge detection method fusing uniform color information and compound receptive field model

A technology of edge detection and color information, applied in the field of image processing

Inactive Publication Date: 2017-01-25
GUANGXI NORMAL UNIV
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Problems solved by technology

However, there are relatively few studies on combining uniform color information and composite receptive field models for edge detection.

Method used

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  • Edge detection method fusing uniform color information and compound receptive field model
  • Edge detection method fusing uniform color information and compound receptive field model
  • Edge detection method fusing uniform color information and compound receptive field model

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Embodiment Construction

[0032] An edge detection method for fusing uniform color information and a composite receptive field model, comprising the following steps:

[0033] (1) First, multi-scale sampling is performed on the original color image f(x, y). Preliminary use of 5 scales (including upsampling and downsampling), that is, s∈[-1,0,1,2,3], the scaling factor of image length and width is 2 -s . , then a multi-scale image f(x,y,s) can be obtained. In view of the similarity between the uniform color space and the human visual system perception color mode, after the multi-scale sampling is completed, the multi-scale image is converted to the HSV color space. In order to achieve edge extraction, the multi-scale image f(x, y, s) is respectively operated as follows:

[0034] (2) The present invention uses the luminance component V for edge extraction, adopts the Gabor function to convolve the luminance component V, and obtains the Gabor energy map, which is defined as e σ (x,y,s) to simulate the ...

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Abstract

The invention discloses an edge detection method fusing uniform color information and a compound receptive field model. Edge detection is performed by simulating inhibition and facilitation effects of a compound receptive field in combination with uniform color information, and the compound receptive field model fusing the uniform color information is provided. The effect of uniform color information and inhibition and facilitation effects on edges is considered, and a better edge detection effect can be acquired, the method better conforms to the visual perception mechanism.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to an edge detection method that combines uniform color information and a composite receptive field model. Background technique [0002] Edge detection is a key step in image processing and analysis, and has a significant impact on subsequent high-level feature description, matching and recognition. Physiological experimental studies have shown that the receptive field of the primary visual cortex has direction selectivity. A large number of studies have shown that there is a non-classical receptive field in the peripheral area of ​​the classical receptive field, which not only has an inhibitory effect, but also has a facilitative effect. The classical receptive field and the large peripheral disinhibited area are collectively referred to as the composite receptive field (see figure 1 ). The composite receptive field model can detect image edges well, but it does not tak...

Claims

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Application Information

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IPC IPC(8): G06T7/13
CPCG06T2207/10024G06T2207/20182
Inventor 刘广海
Owner GUANGXI NORMAL UNIV
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