RenderIH: A Large-scale Synthetic Dataset for 3D Interacting Hand Pose Estimation
The current interacting hand (IH) datasets are relatively simplistic in terms
of background and texture, with hand joints being annotated by a machine
annotator, which may result in inaccuracies, and the diversity of pose
distribution is limited. However, the variability of background, pose
distribution, and texture can greatly influence the generalization ability.
Therefore, we present a large-scale synthetic dataset RenderIH for interacting
hands with accurate and diverse pose annotations. The dataset contains 1M
photo-realistic images with varied backgrounds, perspectives, and hand
textures. To generate natural and diverse interacting poses, we propose a new
pose optimization algorithm. Additionally, for better pose estimation accuracy,
we introduce a transformer-based pose estimation network, TransHand, to
leverage the correlation between interacting hands and verify the effectiveness
of RenderIH in improving results. Our dataset is model-agnostic and can improve
more accuracy of any hand pose estimation method in comparison to other real or
synthetic datasets. Experiments have shown that pretraining on our synthetic
data can significantly decrease the error from 6.76mm to 5.79mm, and our
Transhand surpasses contemporary methods. Our dataset and code are available at
https://github.com/adwardlee/RenderIH.