Papers › LiveHand: Real-time and Photorealistic Neural Hand Rendering

LiveHand: Real-time and Photorealistic Neural Hand Rendering

15 Feb 2023arXiv:2302.07672links table onlyarchive 2025-07-28

Akshay Mundra, Mallikarjun B R, Jiayi Wang, Marc Habermann, Christian Theobalt, Mohamed Elgharib

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The human hand is the main medium through which we interact with our surroundings, making its digitization an important problem. While there are several works modeling the geometry of hands, little attention has been paid to capturing photo-realistic appearance. Moreover, for applications in extended reality and gaming, real-time rendering is critical. We present the first neural-implicit approach to photo-realistically render hands in real-time. This is a challenging problem as hands are textured and undergo strong articulations with pose-dependent effects. However, we show that this aim is achievable through our carefully designed method. This includes training on a low-resolution rendering of a neural radiance field, together with a 3D-consistent super-resolution module and mesh-guided sampling and space canonicalization. We demonstrate a novel application of perceptual loss on the image space, which is critical for learning details accurately. We also show a live demo where we photo-realistically render the human hand in real-time for the first time, while also modeling pose- and view-dependent appearance effects. We ablate all our design choices and show that they optimize for rendering speed and quality. Video results and our code can be accessed from https://vcai.mpi-inf.mpg.de/projects/LiveHand/

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amundra15/livehand officialmentioned on GitHubpytorchMIT report

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1ran · violated contract
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normalize amundra15/livehand/load_dataset.py official repository ran · violated contract fingerprinted MIT (permissive) · 1d6f8390d799f055 · report
read_mano_uv_obj amundra15/livehand/input_encoder.py official repository ran MIT (permissive) · aca176d6cc645e8d · report
viewmatrix amundra15/livehand/load_dataset.py official repository ran · fixture could not drive it fingerprinted MIT (permissive) · aa52acee18f54d38 · report
dilate_depth amundra15/livehand/depth_renderer.py official repository unverified MIT (permissive) · f59c76c1d78dc1c4 · report
erode_depth amundra15/livehand/depth_renderer.py official repository unverified MIT (permissive) · ca737a274e051c7a · report
get_biased_fg_indices amundra15/livehand/dataset.py official repository unverified MIT (permissive) · 76c0b7698e693091 · report
get_random_patch_indices amundra15/livehand/dataset.py official repository unverified MIT (permissive) · fdbfb81d68906b53 · report
normalise_depth amundra15/livehand/depth_renderer.py official repository unverified MIT (permissive) · c813de4d6c8edb39 · report
pose_spherical amundra15/livehand/camera_utils.py official repository unverified MIT (permissive) · a02490984c8d84b8 · report

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