CAJ | 학술논문

Camshift算法需要手动标定目标区域，且具有无法适应目标的高速运动、相似颜色背景和遮挡等情况的局限性。针对这些情况提出结合帧间差分法和背景差分相结合的方法对Camshift算法进行改进。首先利于帧间差分和背景差分相结合检测出运动目标区域。然后用该区域初始化跟踪目标窗口。当有相似颜色背景干扰或遮挡情况发生时，利用检测出的运动目标区域对搜索窗口进行限制。同时，使用KaIman滤波对下一帧的搜索窗口进行预测，从而使该算法适合高速运动目标的跟踪。实验表明该算法能够准确对目标窗口进行初始化，且在目标高速运动、遮挡、和相似颜色背景干扰情况下，仍能进行适时实时有效跟踪。
Camshift산법수요수동표정목표구역，차구유무법괄응목표적고속운동、상사안색배경화차당등정황적국한성。침대저사정황제출결합정간차분법화배경차분상결합적방법대Camshift산법진행개진。수선리우정간차분화배경차분상결합검측출운동목표구역。연후용해구역초시화근종목표창구。당유상사안색배경간우혹차당정황발생시，이용검측출적운동목표구역대수색창구진행한제。동시，사용KaIman려파대하일정적수색창구진행예측，종이사해산법괄합고속운동목표적근종。실험표명해산법능구준학대목표창구진행초시화，차재목표고속운동、차당、화상사안색배경간우정황하，잉능진행괄시실시유효근종。
The Camshift aIgorithm needs to seIect the target region by hand and has the Iimitations of can not adapte to high-speed object,simiIar coIor in background and covering.In view of these situations,this paper appIies the method of combi-nation of inter-frame difference and background difference to improve the Camshift aIgorithm.FirstIy,detecting moving target region with the method of combination of inter-frame difference and background difference.Then,initiaIizing the tracking tar-get window with the region.When there is a interference of background of simiIar coIor or convring,use the moving target region to Iimit the search window.