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Method for detecting contour of target object

A contour detection and target object technology, applied in the field of computer vision, to achieve the effect of suppressing background interference, strong adaptive ability, and preserving integrity

Active Publication Date: 2011-11-23
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the existing defects of the existing non-classical receptive field suppression contour detection method for object contour extraction in complex natural scenes, and propose a target object contour detection method

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  • Method for detecting contour of target object
  • Method for detecting contour of target object

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Embodiment Construction

[0021] The present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0022] The present invention is based on modern biology and physiology, and according to the periphery of the classic receptive field (CRF, Classical Receptive Field) of primary visual cortex neurons in the visual system, that is, the non-classical receptive field (nCRF, non-CRF) mainly presents Two different modulation effects: inhibition and facilitation, and according to the different combinations formed when these two modulation effects are in different regions, and the influence of contrast on this modulation effect, a side region constant inhibitory terminal region selectivity is realized. The method of action: the side area suppression suppresses the chaotic texture to a certain extent, and through the selective action of the end area, the outline and the outline suppressed by the side area are selectively enhanced, and the background te...

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Abstract

The invention belongs to the technical field of computer vision and discloses a method for detecting the contour of a target object. The method comprises the following steps of: dividing a non-classical receptive field into an end area and a side area; performing constant inhibition in the side area; performing selective action in the end area by using influence of contrast; during computation of the selective action, setting a threshold according to a contrast value in a certain neighborhood of each pixel by using an adaptive method to judge whether the pixel is inhibited or facilitated; according to an inhibitory action of the side area of a non-classical receptive field filter on the pixel at the center position, suppressing texture and other background information with similar local characteristics, and further highlighting contour information; and according to the inhibitory action of the side area of the non-classical receptive field filter, regulating the size of the action of the end area to preserve the completeness of a contour line as better as possible and inhibit background interference to the largest content. The method for detecting the contour of the target object can be applied to detection, identification and the like of the target object in the computer vision.

Description

technical field [0001] The invention belongs to the technical field of computer vision, in particular to a method for detecting the outline of a target object. Background technique [0002] The major breakthrough in the research of visual information processing and the trend of integrating into the cross-discipline have attracted more and more researchers' attention, especially the researchers in the field of edge detection, how to apply the characteristics of the human visual system to the Among them, solving the problem of contour detection has become a hot research topic. The literature "Grigorescu C, Petkov N, Westenberg M, Contour detection based on nonclassical receptive field inhibition, IEEE Transactions on Image Processing 12, 2003, 729-739" carried out related research using the nonclassical receptive field's inhibition characteristics on the classical receptive field, Simulating the suppression of non-classical receptive fields, this operator shows better results...

Claims

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Application Information

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IPC IPC(8): G06T5/00
Inventor 李永杰王晓静杨开富李朝义
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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