用于基于视频运动目标的跟踪，该算法融合了颜色直方图和梯度方向直方图的特征,能够更加精确地表征目标,较大地提高了视频目标跟踪的准确度和鲁棒性。-For video motion-based target tracking, the algorithm combines the color histogram and gradient direction histogram feature, to more accurately characterize the target, greatly improve the accuracy and robustness of the video object tracking.