一种基于3像素基元组合的直线描述与检测方法<sup>*</sup>

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Abstract One of the most important clues to image understanding is the edges and profiles of the objects, and lineedges take a high proportion. By applying edge detectors to image, only some discrete points are obtained, and line detection can integrate them. A method of line description and line detection is proposed, which is based on combinations of multiple threepixel micro patterns. This method includes defining primary units that can be combined into dentate line segment in grid manner, establishing the combination rules of different type units in different positions, and proving the feasibility of the combination rules. Then a unitbased clustering algorithm is given. Finally, this method is tested on many real pictures with background, and compared with other classical line detection algorithms. The experimental results show the proposed method has made great improvements over computation time, memory requirement and detection accuracy. The output of the proposed method can be taken as the input of subsequent object recognition procedures directly, and searching line end points, filtering false lines, segmenting collinear line segments are needless.

Key words： Line Detection Syntax Pattern Recognition Image Description

Received: 10 April 2006

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TP391.4

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	WEI Hui
	LIU Bin

Cite this article:

WEI Hui,LIU Bin. A Line Description and Detection Method Based on Combination of 3Pixel Elementary Units[J]. , 2007, 20(4): 439-449.

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http://manu46.magtech.com.cn/Jweb_prai/EN/ OR http://manu46.magtech.com.cn/Jweb_prai/EN/Y2007/V20/I4/439

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