전자공학회논문지S (Journal of the Korean Institute of Telematics and Electronics S)
- 제34S권6호
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- Pages.46-57
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- 1997
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- 1226-5837(pISSN)
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
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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