Clustering Method And System, Corresponding Apparatus And Computer Program Product

Image processing circuitry processes image frames in a sequence of image frames, for example, to identify objects of interest. The processing includes filtering motion vectors associated with a current image frame, grouping the filtered motion vectors associated with the current image frame into a set of clusters associated with the current image frame, and selectively merging clusters in the set of clusters associated with the current image frame. At least one of the filtering, the grouping and the merging may be based on one or more clusters associated with one or more previous image frames in the sequence of image frames. Motion vectors included in merged clusters associated with a previous frame may be added to filtered motion vectors before grouping the motion vectors in the current frame. 在实施例中，通过以下方式从输入帧(IF)的运动矢量(MV)开始聚类输入帧(IF)的流传达的图像信息(C)：将运动矢量(MV)分组(104)成簇集(106，108)，通过合并来自簇集(106，108)的簇来向簇集(106，108)施加合并聚类(110)，方法包括以下中的项或多项：i)在分组(104)成簇集(106，108)之前，向运动矢量(MV)施加滤波(102')以去除没有被包括在之前的簇中的小运动矢量，ii)通过从簇集中去除那些没