CenterNet
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关键点个数为0情况的疑问
if num_kpts == 0: hm[cls_id, ct_int[1], ct_int[0]] = 0.9999 reg_mask[k] = 0 reg_mask是和wh、offset的loss计算有关,难道关键点个数为0,wh和offset就不学了?