针对四轴飞行器平台上单目视觉避障算法实时性不够，准确率不高的问题，提出了一种新的基于金字塔 LK(Lucas-Kanade)光流与平移光流融合的单目视觉避障算法并给出了这一方法的数学推导过程(The four axes of the monocular obstacle avoidance algorithm is real-time, accuracy is not high, which is based on the Pyramid LK (Lucas-Kanade) mathematical derivation of monocular vision optical flow and moving optical flow fusion algorithm of obstacle avoidance and gives the method)