Abstract
针对目标跟踪过程中目标颜色相近、尺度变化及遮挡等问题，该文提出一种自适应分块并融合颜色直方图及SIFT特征的目标跟踪方法。自适应分块采用目标颜色投影和成像角度作为分块标准，使各子块具有一定相异性并保证分块数目；各子块使用颜色直方图和SIFT特征描述，通过计算SIFT特征点的尺度变化自适应地改变跟踪窗口尺度；在跟踪过程中对子块的权重及相应模板及时更新，当目标表观变化较大时重新对模板自适应分块。实验表明，该方法能准确有效地跟踪目标，并在颜色相近目标跟踪、尺度自适应及遮挡处理等方面具有较好效果。
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