Decision of Adaptive Threshold Value Using Histogram in Differential Image

차영상에서의 히스토그램을 이용한 적응적 임계값 결정

  • 오명관 (혜전대학 컴퓨터과) ;
  • 김태익 (감사원 국가전략사업평가단) ;
  • 최동진 (충북대학교 컴퓨터공학과) ;
  • 전병민 (충북대학교 전기전자컴퓨터공학부)
  • Published : 2004.09.01


Difference image scheme is widely used for motion estimation in moving object tracking system. This scheme contains a binarization step which segments image into background and moving object regions, referring to threshold value. In this paper, we propose a decision algorithm of tracking the threshold value with a differential image. The key idea is analyzing the histogram of the differential image. In addition we evaluate the performance of this method in comparison with conventional scheme. As an experimental result with 60 images, it is found that threshold by the proposed algorithm is very close to optimal threshold selected manually.


Threshold Value