전자공학회논문지S (Journal of the Korean Institute of Telematics and Electronics S)

대한전자공학회 (The Institute of Electronics and Information Engineers)
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상관방식 영상 추적에서의 추적창 적응 조절

Adaptation of a tracking windwo in correlation-based video tracking

  • 임채환 (경북대학교 전자.전기공학부) ;
  • 손재곤 (대우통신 광통신연구실) ;
  • 김상현 (경북대학교 전자.전기공학부) ;
  • 최일 (보현산 천문관측소) ;
  • 김남철 (경북대학교 전자.전기공학부)
  • Lim, Chae-Whan (School Electronic & Electrical Eng., Kyungpook Nat'l Univ.) ;
  • Son, Jae-Gon (Telecommunication Network Dept., Daewoo Telecom Ltd.) ;
  • Kim, Sang-Hyun (School Electronic & Electrical Eng., Kyungpook Nat'l Univ.) ;
  • Choi, Il (Bo-hyun-san Optical Astronomy Observatory) ;
  • Kim, Nam-Chul (School Electronic & Electrical Eng., Kyungpook Nat'l Univ.)
  • 발행 : 1997.06.01
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초록

In this paper, we propose an efficient algorithm for adaptation of tracking windwo, which improves tracking performance of a correlation-based video tracker by rejecting background effect originated from a time-varying target. Th eproposed adaptation algorithm ajdusts the size of a tracking window by using the ratio of spatial gradient power in target region to that in backgorund region, which is especially adequate for a correlation-based tracker. Experimental results for synthetic and real image sequences show that the proposed method adapts a tracking window well to a time-varying target and so greatly suppresses background effect, which makes improvement of trakcing performance.

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