计算机科学 ›› 2018, Vol. 45 ›› Issue (11A): 230-233.
黄健, 郭志波, 林科军
HUANG Jian, GUO Zhi-bo, LIN Ke-jun
摘要: 视觉跟踪是计算机视觉的一个重要方向,而核相关滤波(KCF)跟踪是视觉跟踪领域中的一种比较新颖的方法,它不同于传统基于目标特征的方法,不仅具有较高的跟踪精度,而且具有较快的跟踪速度,在实际应用中效果显著。但当物体快速运动或存在较大尺度变化等时,该方法无法准确地跟踪目标。文中提出的基于核相关滤波器的改进算法有效地解决了上述问题,其通过随机更新多模板匹配,确定了核相关滤波的学习因子,从而实现了学习因子自适应更新模型。实验结果表明,该算法根据不同的场景能快速地调整学习因子,从而提高跟踪的成功度。通过自适应学习因子和多模板匹配,该算法对部分遮挡、光照和目标尺度变化具有较强的适应性。
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