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Conference Papers Year : 2023

gSDF: Geometry-Driven Signed Distance Functions for 3D Hand-Object Reconstruction

Abstract

Signed distance functions (SDFs) is an attractive framework that has recently shown promising results for 3D shape reconstruction from images. SDFs seamlessly generalize to different shape resolutions and topologies but lack explicit modelling of the underlying 3D geometry. In this work, we exploit the hand structure and use it as guidance for SDF-based shape reconstruction. In particular, we address reconstruction of hands and manipulated objects from monocular RGB images. To this end, we estimate poses of hands and objects and use them to guide 3D reconstruction. More specifically, we predict kinematic chains of pose transformations and align SDFs with highly-articulated hand poses. We improve the visual features of 3D points with geometry alignment and further leverage temporal information to enhance the robustness to occlusion and motion blurs. We conduct extensive experiments on the challenging ObMan and DexYCB benchmarks and demonstrate significant improvements of the proposed method over the state of the art.
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Dates and versions

hal-04095352 , version 1 (11-05-2023)

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Zerui Chen, Shizhe Chen, Cordelia Schmid, Ivan Laptev. gSDF: Geometry-Driven Signed Distance Functions for 3D Hand-Object Reconstruction. CVPR 2023 - IEEE/CVF Conference on Computer Vision and Pattern Recognition 2023, Jun 2023, Vancouver (Canada), Canada. ⟨hal-04095352⟩
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