Title
Learning to Estimate Robust 3D Human Mesh from In-the-Wild Crowded Scenes
Abstract
We consider the problem of recovering a single person's 3D human mesh from in-the-wild crowded scenes. While much progress has been in 3D human mesh estimation, existing methods struggle when test input has crowded scenes. The first reason for the failure is a domain gap between training and testing data. A motion capture dataset, which provides accurate 3D labels for training, lacks crowd data and impedes a network from learning crowded scene-robust image features of a target person. The second reason is a feature processing that spatially averages the feature map of a localized bounding box containing multiple people. Averaging the whole feature map makes a target person's feature indistinguishable from others. We present 3DCrowdNet that firstly explicitly targets in-the-wild crowded scenes and estimates a robust 3D human mesh by addressing the above issues. First, we leverage 2D human pose estimation that does not require a motion capture dataset with 3D labels for training and does not suffer from the domain gap. Second, we propose a joint-based regressor that distinguishes a target person's feature from others. Our joint-based regressor preserves the spatial activation of a target by sampling features from the target's joint locations and regresses human model parameters. As a result, 3DCrowdNet learns target-focused features and effectively excludes the irrelevant features of nearby persons. We conduct experiments on various benchmarks and prove the robustness of 3D CrowdNet to the in-the-wild crowded scenes both quantitatively and qualitatively. Codes are available here 1 1 https://github.com/hongsukchoi/3DCrowdNet_RELEASE.
Year
DOI
Venue
2022
10.1109/CVPR52688.2022.00153
IEEE Conference on Computer Vision and Pattern Recognition
Keywords
DocType
Volume
3D from single images, Face and gestures
Conference
2022
Issue
Citations 
PageRank 
1
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Hongsuk Choi100.34
Gyeongsik Moon201.35
JoonKyu Park300.34
Kyoung Mu Lee43228153.84