Search Results for author: Tianjian Jiang

Found 5 papers, 3 papers with code

EMDB: The Electromagnetic Database of Global 3D Human Pose and Shape in the Wild

1 code implementation ICCV 2023 Manuel Kaufmann, Jie Song, Chen Guo, Kaiyue Shen, Tianjian Jiang, Chengcheng Tang, Juan Zarate, Otmar Hilliges

EMDB is a novel dataset that contains high-quality 3D SMPL pose and shape parameters with global body and camera trajectories for in-the-wild videos.

Pose Estimation

Vid2Avatar: 3D Avatar Reconstruction from Videos in the Wild via Self-supervised Scene Decomposition

1 code implementation CVPR 2023 Chen Guo, Tianjian Jiang, Xu Chen, Jie Song, Otmar Hilliges

Specifically, we define a temporally consistent human representation in canonical space and formulate a global optimization over the background model, the canonical human shape and texture, and per-frame human pose parameters.

3D Human Reconstruction Surface Reconstruction

InstantAvatar: Learning Avatars from Monocular Video in 60 Seconds

no code implementations CVPR 2023 Tianjian Jiang, Xu Chen, Jie Song, Otmar Hilliges

To achieve this efficiency we propose a carefully designed and engineered system, that leverages emerging acceleration structures for neural fields, in combination with an efficient empty space-skipping strategy for dynamic scenes.

Fast-SNARF: A Fast Deformer for Articulated Neural Fields

1 code implementation28 Nov 2022 Xu Chen, Tianjian Jiang, Jie Song, Max Rietmann, Andreas Geiger, Michael J. Black, Otmar Hilliges

A key challenge in making such methods applicable to articulated objects, such as the human body, is to model the deformation of 3D locations between the rest pose (a canonical space) and the deformed space.

3D Reconstruction Computational Efficiency +1

gDNA: Towards Generative Detailed Neural Avatars

no code implementations CVPR 2022 Xu Chen, Tianjian Jiang, Jie Song, Jinlong Yang, Michael J. Black, Andreas Geiger, Otmar Hilliges

Furthermore, we show that our method can be used on the task of fitting human models to raw scans, outperforming the previous state-of-the-art.

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