J4 ›› 2011, Vol. 38 ›› Issue (4): 26-31.doi: 10.3969/j.issn.1001-2400.2011.04.005

• Original Articles • Previous Articles     Next Articles

Digital image stabilization algorithm applicable to large rotation

CHU Xiuqin1,2;WANG Fei1,2;NI Lezhen1;LIU Yang1,2   

  1. (1. Research Inst. of Electronic CAD, Xidian Univ., Xi'an  710071, China;
    2. Ministry of Education Key Lab. of High-Speed Circuit Design and EMC, Xidian Univ., Xi'an  710071, China)
  • Received:2010-11-23 Online:2011-08-20 Published:2011-09-28
  • Contact: CHU Xiuqin E-mail:xqchu@mail.xidian.edu.cn

Abstract:

Based on corner detection, a matching strategy featured point-to-multipoint is presented, from which it is proposed a new image stabilization algorithm for image sequences with both translation and large rotation. The algorithm has made a breakthrough to the limitations of both the traditional algorithms' capability of only resolving translation or small rotation(3° to 5° on average) and the necessity of the center of rotation being precisely determined. Experimental results show that the algorithm still effectively functions even when the rotation angle reaches18°. Also, the average PSNR is raised approximately 26dB after stabilization.

Key words: electronic image stabilization, large rotation, corner matching, global motion estimation

CLC Number: 

  • TN942.2