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moberweger / deep-prior-pp

Improving Fast And Accurate 3D Hand Pose Estimation
GNU General Public License v3.0
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Scale augmentation #3

Closed LuciaXu closed 6 years ago

LuciaXu commented 6 years ago

Hi, @moberweger

Thanks for sharing your work. After reading your great paper and the code, I have a question about the scaling augmentation. In the paper, you said that "we scale the 3D joint locations according to the random factor". However, I failed to find it in the scaleHand function. It seems that you just made the new_joints3D equal to the joints3D. Did I missed something here?

moberweger commented 6 years ago

HI, Yes, you are right that in HandDetector:scaleHand we only scale the image not the joint locations, since the joint locations are in (unnormalized) 3D coordinates, but we scale the crop cube. The scaling of the joint locations is done in NetTrainer:augmentCrop, where the joint locations get normalized by the crop cube, which was adjusted in scaleHand.

LuciaXu commented 6 years ago

Thanks very much! @moberweger