faster_rcnn运行webcamtest出错之分析

RuntimeError: Error(s) in loading state_dict for vgg16:
    While copying the parameter named "RCNN_rpn.RPN_cls_score.bias", whose dimensions in the model are torch.Size([18]) and whose dimensions in the checkpoint are torch.Size([24]).
    While copying the parameter named "RCNN_rpn.RPN_cls_score.weight", whose dimensions in the model are torch.Size([18, 512, 1, 1]) and whose dimensions in the checkpoint are torch.Size([24, 512, 1, 1]).
    While copying the parameter named "RCNN_rpn.RPN_bbox_pred.bias", whose dimensions in the model are torch.Size([36]) and whose dimensions in the checkpoint are torch.Size([48]).
    While copying the parameter named "RCNN_rpn.RPN_bbox_pred.weight", whose dimensions in the model are torch.Size([36, 512, 1, 1]) and whose dimensions in the checkpoint are torch.Size([48, 512, 1, 1]).
    While copying the parameter named "RCNN_cls_score.bias", whose dimensions in the model are torch.Size([21]) and whose dimensions in the checkpoint are torch.Size([81]).
    While copying the parameter named "RCNN_cls_score.weight", whose dimensions in the model are torch.Size([21, 4096]) and whose dimensions in the checkpoint are torch.Size([81, 4096]).
    While copying the parameter named "RCNN_bbox_pred.bias", whose dimensions in the model are torch.Size([84]) and whose dimensions in the checkpoint are torch.Size([324]).
    While copying the parameter named "RCNN_bbox_pred.weight", whose dimensions in the model are torch.Size([84, 4096]) and whose dimensions in the checkpoint are torch.Size([324, 4096]).

 

 

RuntimeError: Error(s) in loading state_dict for vgg16:
    While copying the parameter named "RCNN_rpn.RPN_cls_score.bias", whose dimensions in the model are torch.Size([18]) and whose dimensions in the checkpoint are torch.Size([24]).
    While copying the parameter named "RCNN_rpn.RPN_cls_score.weight", whose dimensions in the model are torch.Size([18, 512, 1, 1]) and whose dimensions in the checkpoint are torch.Size([24, 512, 1, 1]).
    While copying the parameter named "RCNN_rpn.RPN_bbox_pred.bias", whose dimensions in the model are torch.Size([36]) and whose dimensions in the checkpoint are torch.Size([48]).
    While copying the parameter named "RCNN_rpn.RPN_bbox_pred.weight", whose dimensions in the model are torch.Size([36, 512, 1, 1]) and whose dimensions in the checkpoint are torch.Size([48, 512, 1, 1]).

 

问题原因：推理时使用的SCALES的数量和训练时不一样，将SCALES的数量改为和训练时一致，问题得到解决。