基于opencv的帧率提升算法，可实现超低帧率（3~5帧）的视频插帧，速度达到应用标准，六边形搜索块匹配-Opencv based on fr a me rate to enhance algorithm can achieve ultra-low fr a me rate (3 to 5) of the video fr a me interpolation, speed of application standards, hexagon search block matching