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Local Deep Implicit Functions for 3D Shape

Author(s): Genova, Kyle; Cole, Forrester; Sud, Avneesh; Sarna, A; Funkhouser, Thomas

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Abstract: © 2020 IEEE. The goal of this project is to learn a 3D shape representation that enables accurate surface reconstruction, compact storage, efficient computation, consistency for similar shapes, generalization across diverse shape categories, and inference from depth camera observations. Towards this end, we introduce Local Deep Implicit Functions (LDIF), a 3D shape representation that decomposes space into a structured set of learned implicit functions. We provide networks that infer the space decomposition and local deep implicit functions from a 3D mesh or posed depth image. During experiments, we find that it provides 10.3 points higher surface reconstruction accuracy (F-Score) than the state-of-The-Art (OccNet), while requiring fewer than 1\% of the network parameters. Experiments on posed depth image completion and generalization to unseen classes show 15.8 and 17.8 point improvements over the state-of-The-Art, while producing a structured 3D representation for each input with consistency across diverse shape collections.
Publication Date: 1-Jan-2020
Citation: Genova, K, Cole, F, Sud, A, Sarna, A, Funkhouser, T. (2020). Local Deep Implicit Functions for 3D Shape. Proceedings of the IEEE Computer Society Conference on Computer Vision and Pattern Recognition, 4856 - 4865. doi:10.1109/CVPR42600.2020.00491
DOI: doi:10.1109/CVPR42600.2020.00491
ISSN: 1063-6919
Pages: 4856 - 4865
Type of Material: Journal Article
Journal/Proceeding Title: Proceedings of the IEEE Computer Society Conference on Computer Vision and Pattern Recognition
Version: Final published version. This is an open access article.

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