HumanDreamer-X: Photorealistic Single-image Human Avatars Reconstruction via Gaussian Restoration

• URL: http://arxiv.org/abs/2504.03536v1
• Date: Fri, 04 Apr 2025 15:35:14 GMT
• Title: HumanDreamer-X: Photorealistic Single-image Human Avatars Reconstruction via Gaussian Restoration
• Authors: Boyuan Wang, Runqi Ouyang, Xiaofeng Wang, Zheng Zhu, Guosheng Zhao, Chaojun Ni, Guan Huang, Lihong Liu, Xingang Wang,
• Abstract summary: We introduce textbfHumanDreamer-X, a novel framework that integrates multi-view human generation and reconstruction into a unified pipeline.<n>In this framework, 3D Gaussian Splatting serves as an explicit 3D representation to provide initial geometry and appearance priority.<n>We also propose an attention modulation strategy that effectively enhances geometric details identity consistency across multi-view.
• Score: 29.03216532351979
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Single-image human reconstruction is vital for digital human modeling applications but remains an extremely challenging task. Current approaches rely on generative models to synthesize multi-view images for subsequent 3D reconstruction and animation. However, directly generating multiple views from a single human image suffers from geometric inconsistencies, resulting in issues like fragmented or blurred limbs in the reconstructed models. To tackle these limitations, we introduce \textbf{HumanDreamer-X}, a novel framework that integrates multi-view human generation and reconstruction into a unified pipeline, which significantly enhances the geometric consistency and visual fidelity of the reconstructed 3D models. In this framework, 3D Gaussian Splatting serves as an explicit 3D representation to provide initial geometry and appearance priority. Building upon this foundation, \textbf{HumanFixer} is trained to restore 3DGS renderings, which guarantee photorealistic results. Furthermore, we delve into the inherent challenges associated with attention mechanisms in multi-view human generation, and propose an attention modulation strategy that effectively enhances geometric details identity consistency across multi-view. Experimental results demonstrate that our approach markedly improves generation and reconstruction PSNR quality metrics by 16.45% and 12.65%, respectively, achieving a PSNR of up to 25.62 dB, while also showing generalization capabilities on in-the-wild data and applicability to various human reconstruction backbone models.

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