Journal of Applied Sciences ›› 2014, Vol. 32 ›› Issue (6): 611-616.doi: 10.3969/j.issn.0255-8297.2014.06.010

• Signal and Information Processing • Previous Articles     Next Articles

Vectorization Based on Pixel Corner Searching

ZHANG Peng-lin1, PANG Yu1, LÜ Zhi-yong2   

  1. 1. School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430079, China
    2. School of Computer Science and Engineering, Xi’an University of Technology, Xi’an 710048, China
  • Received:2014-07-12 Revised:2014-09-23 Online:2014-11-28 Published:2014-09-23

Abstract:  Vectorization is an important technique in remote sensing image processing. The existing vectoriztion
algorithms are mostly insufficient on vectorization of holes. This paper proposes an algorithm based
on corner pixels. A set of pixels consisting of corners is first established, and another set (valid arc set) with
arcs connecting contour points also established for contour search. A closed contour of an object is defined by
searching valid arc sets according to certain rules. Experimental results show validity of the proposed algorithm
in solving the problem of holes.

Key words: vectorization, corner, border search, region segmentation

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