Computer and Modernization ›› 2009, Vol. 1 ›› Issue (7): 142-144.doi: 10.3969/j.issn.1006-2475.2009.07.041

• 应用与开发 • Previous Articles     Next Articles

Edge Detection Based on Wavelet Lifting Transform and Its Application

GUAN Sheng-qi,DONG You-geng   

  1. College of Mechanical & Electronic Engineering, Xi’an Polytechnic University, Xi’an 710048, China
  • Received:2009-02-27 Revised:1900-01-01 Online:2009-07-10 Published:2009-07-10

Abstract: According to wavelet lifting scheme analysis, a new method for edge detection based on wavelet transform is presented. Firstly, subimages of horizontal, vertical and diagonal details are acquired through the wavelet decomposition. Secondly, according to subimages characteristics, subimage edges are detected by different edge detection operator. Lastly, image is reconstructed through the inverse wavelet transform. The experimental result confirms that the proposed method is feasible through traffic flow detection.

Key words: lifting scheme, wavelet transform, edge detection, traffic flow

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