后帧 meaning in English

stback

By using the presupposition and the contrast images of front views of joints positions in orderly images , and matching the sports joints in front and back views , the positions of body joints could be exactly located and some parameters needed could be calculated
该方法用序列图像前帧图像中关节位置的先验知识和差异图像判断运动关节，对运动关节在前后帧中进行块匹配，得到后帧图像中人体关节的精确位置，继而计算出需要的运动参数。