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BoChenYS / BPnP

Back-propagatable PnP
MIT License
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Usage to train with only pose label #6

Closed Guocode closed 4 years ago

Guocode commented 4 years ago

I have a thought that if I only have pose label and camera intristic, as for some tasks like gaze estimation(6DoF of eyeball) it's hard to get cannical model ,can I train a network using bpnp minimizing the pose loss to get the latent rigid 3D key points of the object and 2D key points.

BoChenYS commented 4 years ago

It would be an under-constraint problem. The network could converge to a trivial solution, as you can imagine, e.g., all 3D and 2D keypoints collapse to a single point. You will need to exploit other constraints of your application. But it is an interesting direction that I have been looking into.

Guocode commented 4 years ago

In addition to the keypoints, maybe we can define other geometric constraint like circle or ellipse with certain range of shape, so that the network can converge to a realistic map. Thanks for your helpful reply and your great work.

BoChenYS commented 4 years ago

Pleasure!