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Daniil-Osokin / lightweight-human-pose-estimation-3d-demo.pytorch

Real-time 3D multi-person pose estimation demo in PyTorch. OpenVINO backend can be used for fast inference on CPU.
Apache License 2.0
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How are the values in extrinsics.json formulated ? #34

Closed aswin-datakalp closed 3 years ago

aswin-datakalp commented 4 years ago

Hi @Daniil-Osokin ,

There is an json named "extrinsics.json" which has R & T matrix and is being used in the process of converting 3D pose coordinates form camera space to World Space here

Here are my questions:

1) How are these R & t values derived ? 2) Are these values going to be the same for all cameras/angles ? If not how to recompute it ?

Daniil-Osokin commented 4 years ago

Hi! To get the sense of camera model, you can check this article: https://en.wikipedia.org/wiki/Camera_resectioning.

aswin-datakalp commented 3 years ago

Hi @Daniil-Osokin ,

Thanks, will check them out !!

Daniil-Osokin commented 3 years ago

Great, that it helped!