NECK": [871.1877,180.4244], "HEAD": [835.8123,58.5756], "R_ANKLE": [980,322], "R_KNEE": [896,318], "R_HIP...": [865,248], "L_HIP": [943,226], "L_KNEE": [948,290], "L_ANKLE": [881,349], "R_WRIST": [772,294], "R_ELBOW...NECK": [795.2738,314.8937], "HEAD": [597.7262,122.1063], "R_ANKLE": [918,456], "R_KNEE": [659,518], "R_HIP...": [713,413], "L_HIP": [979,288], "L_KNEE": [1222,453], "L_ANKLE": [974,399], "R_WRIST": [441,490], "...', 'L_KNEE', 'L_ANKLE', 'R_ANKLE', 'R_KNEE', 'R_HIP']
以关节点图像中的位置, 设定外扩 50 个 像素,以使得 gtbox 尽可能准确.