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Multi-person Implicit Reconstruction from a Single Image

Mustafa, Armin; Caliskan, Akin; Agapito, Lourdes; Hilton, Adrian; (2021) Multi-person Implicit Reconstruction from a Single Image. In: Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) 2021. (pp. pp. 14469-14478). Institute of Electrical and Electronics Engineers (IEEE) Green open access

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Abstract

We present a new end-to-end learning framework to obtain detailed and spatially coherent reconstructions of multiple people from a single image. Existing multi-person methods suffer from two main drawbacks: they are often model-based and therefore cannot capture accurate 3D models of people with loose clothing and hair; or they require manual intervention to resolve occlusions or interactions. Our method addresses both limitations by introducing the first end-to-end learning approach to perform model-free implicit reconstruction for realistic 3D capture of multiple clothed people in arbitrary poses (with occlusions) from a single image. Our network simultaneously estimates the 3D geometry of each person and their 6DOF spatial locations, to obtain a coherent multi-human reconstruction. In addition, we introduce a new synthetic dataset that depicts images with a varying number of inter-occluded humans and a variety of clothing and hair styles. We demonstrate robust, high-resolution reconstructions on images of multiple humans with complex occlusions, loose clothing and a large variety of poses and scenes. Our quantitative evaluation on both synthetic and real world datasets demonstrates state-of-the-art performance with significant improvements in the accuracy and completeness of the reconstructions over competing approaches.

Type: Proceedings paper
Title: Multi-person Implicit Reconstruction from a Single Image
Event: IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)
Location: Nashville, TN, USA
Dates: 20th-25th June 2021
ISBN-13: 978-1-6654-4509-2
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/CVPR46437.2021.01424
Publisher version: https://doi.org/10.1109/CVPR46437.2021.01424
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions.
Keywords: Hair, Solid modeling, Three-dimensional displays, Shape, Clothing, Spatial coherence, Manuals
UCL classification: UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL
URI: https://discovery.ucl.ac.uk/id/eprint/10150697
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