J4 ›› 2014, Vol. 41 ›› Issue (2): 37-43.doi: 10.3969/j.issn.1001-2400.2014.02.007

• Original Articles • Previous Articles     Next Articles

High precision stitching algorithm for the DBS image

CHEN Hongmeng;LI Ming;JIA Lu;WU Yan   

  1. (National Key Lab. of Radar Signal Processing, Xidian Univ., Xi'an  710071, China)
  • Received:2012-11-12 Online:2014-04-20 Published:2014-05-30
  • Contact: CHEN Hongmeng E-mail:chenhongmeng123@163.com

Abstract:

The stitching quality of the Doppler Beam Sharpening (DBS) image will be greatly affected due to the non-ideal movement of the radar platform (variation in attitude and  position). This paper presents a correction model for the movement error. A novel method based on affine transformation is proposed, which can correct and stitch the DBS image effectively. By compensating the variation in attitude and position simultaneously, the discontinuity could be eliminated. Subsequently, the sub-image is stitched together. Simulation analysis and measured data results show that the algorithm can correct the motion error and stitch the sub-images effectively without increasing the computational complexity.

Key words: Doppler beam sharpening (DBS), affine transformation, motion correction, image stitching

CLC Number: 

  • TN957