视讯物件追踪方法;VISUAL OBJECT TRACKING METHOD

摘要

本发明系一种视讯物件追踪方法，其步骤包括：于一视讯影像设定一具有一目标物件之物件窗；设定一大于该物件窗之搜寻窗；分析该物件窗之图像像素并产生一颜色直方图，其系用以定义一颜色滤波器，该颜色滤波器系包含该目标物件之主要颜色特征；使用该颜色滤波器于该物件窗及搜寻窗，分别产生一物件模板及一主要颜色图，该物件模板系包含该目标物件之形状特征，该主要颜色图系具有至少一候选物件；以该物件模板与所述候选物件进行相似度比对，并获得一机率分布图，进而利用该机率分布图计算得出该目标物件之质量中心，故本发明系同时透过颜色及形状特征，所产生之机率分布图而计算出质量中心，俾具有防止目标物件受环境干扰之优点，即系大幅提升辨识精准度、即时追踪之功效。; defining a search window greater than the object window; analyzing image pixels of the object window to generate a color histogram for defining a color filter, and the color filter includes dominant color characteristics of the target; using the color filter to generate an object template and a dominant color map in the object window and the search window respectively, and the object template includes the shape characteristics of the target, and the dominant color map includes at least one candidate; comparing the similarity of the object template and the candidate to obtain a probability distribution map and use the probability distribution map to compute the mass center of the target, and this method generates the probability map by the color and shape characteristics to compute the mass center and achieve the advantage of preventing the target from being interfered by the environment, so as to improve the recognition accuracy and the timely tracking effect.