可视化 相机pose或者 pose视锥
可视化 相机pose或者 pose视锥
https://www.camcalib.io/post/visualizing-camera-calibration-results
https://bitbucket.org/iviso/camcalib_multiview_pointcloud_example/src/master/
https://bitbucket.org/iviso/
其他：
https://towardsdatascience.com/camera-extrinsic-matrix-with-example-in-python-cfe80acab8dd
https://github.com/demul/extrinsic2pyramid
https://www.mathworks.com/help/vision/ref/plotcamera.html
https://matplotlib.org/matplotblog/posts/custom-3d-engine/
https://gamedev.stackexchange.com/questions/183196/calculating-directional-shadow-map-using-camera-frustum
https://medium.com/analytics-vidhya/simple-camera-models-with-numpy-and-matplotlib-92281f15f9b2
https://github.com/isl-org/Open3D/blob/master/examples/python/reconstruction_system/debug/visualize_scene.py
