Journal of Systems Engineering and Electronics ›› 2009, Vol. 20 ›› Issue (1): 1-5.


Image edge detection based on beamlet transform

Li Jing, Huang Peikang, Wang Xiaohu & Pan Xudong   

  1. China Aerospace Science & Industry Corporation, Beijing 100854, P. R. China
  • Online:2009-02-18 Published:2010-01-03


Combining beamlet transform with steerable filters, a new edge detection method based on line gradient is proposed. Compared with operators based on point local properties, the edge-detection results with this method achieve higher SNR and position accuracy, and are quite helpful for image registration, object identification, etc. Some edge-detection experiments on optical and SAR images that demonstrate the significant improvement over classical edge operators are also presented. Moreover, the template matching result based on edge information of optical reference image and SAR image also proves the validity of this method.