Why dose the cam_extr look like this?

hassony2 / handobjectconsist

[cvpr 20] Demo, training and evaluation code for joint hand-object pose estimation in sparsely annotated videos

https://hassony2.github.io/handobjectconsist.html

MIT License

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Why dose the cam_extr look like this? #2

Closed MengHao666 closed 4 years ago

MengHao666 commented 4 years ago

Hi,hassony.

Thanks for this work. I start leaning th code recently, and now I got confused bout the "get_hand_verts3d" function in ho3dv2.py. In such function, you use cam_extr and it has been defined as np.array([[1, 0, 0, 0], [0, -1, 0, 0], [0, 0, -1, 0], [0, 0, 0, 1]]). I cannot know the reason. Hope do some little work in such field ,welcome for any generous suggestion.

hassony2 commented 4 years ago

Hi @MengHao666 ,

Thank you for your interest in our work ! Typically this comes from different xyz conventions. So here it means that the y and z axis are flipped :)

All the best,

Yana