吉林大学学报(工学版) ›› 2010, Vol. 40 ›› Issue (05): 1340-1344.

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Fast image matching method based on projective feature

YANG Guang|TIAN Di|LI Jun|YANG Hong-sheng   

  1. College of Instrumentation and Electronic Engineering,Jilin University,Changchun 130062,China
  • Received:2009-11-10 Online:2010-09-01 Published:2010-09-01

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Abstract:

To reduce the redundant pixels in the template of existing projection methods and the invalid projection calculation in matching process, a fast image matching method based on projective feature is proposed. This method is based on the projection matching principle and target object's characteristics of the minimum aspect ratio rectangle. It constructs a parallelogram template and uses 4direction chain code to achieve the template projection transformation. In the process of image matching, based on the value range of the data gotten after template projection and dynamic threshold sequential similarity detection principle, realtime gray value judgment is realized during the projection transformation. Experiment results show that, compared with other image matching algorithms, the proposed method possesses significant advantage in computational speed.

Key words: computer application, image matching, projective feature, parallelogram template

CLC Number: 

  • TP391
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