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Contour connection method and apparatus

A connection method and contour technology, applied in the field of image processing, can solve problems such as inability to obtain complete contours

Active Publication Date: 2016-04-06
BEIJING LUSTER LIGHTTECH
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Problems solved by technology

[0005] In view of the technical problems in the related art, the embodiment of the present invention provides a contour connection method and device to solve the problem that a complete contour cannot be obtained

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  • Contour connection method and apparatus

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Embodiment Construction

[0022] As we all know, commonly used algorithms for edge point detection include sobel algorithm, Prewitt algorithm, Roberts algorithm, Krich algorithm, and Canny algorithm. Although the performance of different algorithms is different, no matter which algorithm is used for edge detection, the detected edge The contours obtained by point connections all have fractures. In order to be able to solve the problem of profile fracture, the technical solutions of the embodiments of the present invention are proposed.

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong ...

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Abstract

The invention discloses a contour connection method. The method comprises: looking for a fractured contour from basic contours; by taking one of fractured edge points of the fractured contour as a target edge point, calculating a distance between each of other fractured edge points and the target edge point; when the distance between each of the other fractured edge points and the target edge point is smaller than a preset threshold, determining the position of connection between the fractured edge point and the target edge point; calculating an angle difference between a virtual contour and the fractured contour; and when the angle difference between the virtual contour and the fractured contour is less than a preset angle threshold, connecting the target edge point with the fractured edge point. The invention furthermore discloses a contour connection apparatus. Compared with the prior art, the technical scheme provided by embodiments of the invention has the characteristics that the fractured edge points belonging to the same contour can be screened out through distance and angle parameters after the basic contours are obtained, and the fractured edge points belonging to the same contour are connected, so that the complete contour can be obtained.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a contour connection method and device. Background technique [0002] As an efficient automatic detection method, image detection detects the nature or defects of the target by identifying and analyzing the pixel distribution, brightness and contrast of the target image. Usually, after receiving the image, the image detection software first determines the contour of the image, and then determines the area contained in the image through the contour. Wherein, the contour of the image is composed of edge points. Therefore, in the related art, the edge points in the image are firstly detected, and then the edge points are connected to obtain the contour. [0003] Commonly used algorithms for edge point detection include sobel algorithm, Prewitt algorithm, Roberts algorithm, Krich algorithm, and Canny algorithm. Among them, since the detection results obtained by us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
Inventor 赵敏姚毅金刚
Owner BEIJING LUSTER LIGHTTECH
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