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xingyizhou / pytorch-pose-hg-3d

PyTorch implementation for 3D human pose estimation
GNU General Public License v3.0
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An question about average sum-of-skeleton-length. #3

Closed JincanDeng closed 6 years ago

JincanDeng commented 6 years ago

Hello, xingyizhou. I am interseted about this project and I have a question about how to compute the average sum-of-skeleton-length. According to your paper, it is calculated over all the training subjects. But as we all know, the skeleton length difference between different people is huge. For example, a male's skeleton length is longer than a female's in average. So when you calaulate the MPJPE over the validation dataset, how could you ensure this average skeleton-length is suitable for the subjects, S9 and S11? Waiting for your answer.

xingyizhou commented 6 years ago

Hi Jincan, Thanks for your interests. Using average is the best way we can do when the testing scale is totally unknown. Luckily it works for Human 3.6M, as is also don in the Sparseness meets deepness paper. This average is intended only for Human 3.6M evaluation. For more general in-the-wild pose estimation, you will need a post-processing of the scale.

JincanDeng commented 6 years ago

Thanks for your answer very much.