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임채환,손재곤,김상현,최일,김남철,Lim, Chae-Whan,Son, Jae-Gon,Kim, Sang-Hyun,Choi, Il,Kim, Nam-Chul 대한전자공학회 1997 電子工學會論文誌, S Vol.s34 No.6
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.