想要提取Openpose的3d坐标点，运行的命令行代码如下：
>bin\OpenPoseDemo.exe --image_dir examples\media\ --write_json .\output\ --display 0 --number_people_max 1 --render_pose 0 --3d --frame_undistort
但是报错了：
Error:
Found a different number of camera parameter files than the number indicated by `--3d_views` (0 vs. 1.000000). Make sure they are the same number of files and/or set `--frame_undistort` to false.
da
