Forward-looking Scene Matching Based on Hough Transformation and Phase-only Correlation

摘要

Forward-looking scene matching is a fire-new technique for terminal guidance of intending precision-guided weapons. As conventional template matching methods can not overcome perspective transmutation of forward-looking imaging, a new method based on Hough transformation and Phase-only Correlation is proposed in this paper. Firstly use Hough idea to extract the longest line segment both from reference image and real-time image. Then, compute rotation descriptor and reconstruct reference image so as to map the image pair into a same reference frame. Latter matching algorithm with phase-only correlation will be completed between the reconstructed image and real-time image. Experimental results over a range of rotational attacks show a satisfied matching probability and matching speed, which give a demonstration for deep research of forward-looking scene matching.