How HyperHuman Pushes the Boundaries of Realistic Human Image Generation

Conclusion. In this paper, we propose a novel framework HyperHuman to generate in-the-wild human images of high quality. To enforce the joint learning of image appearance, spatial relationship, and geometry in a unified network, we propose Latent Structural Diffusion Model that simultaneously denoises the depth and normal along with RGB. Then we devise Structure-Guided Refiner to compose the predicted conditions for detailed generation. Extensive experiments demonstrate that our framework yields superior performance, generating realistic humans under diverse scenarios.

Limitation and Future Work. As an early attempt in human generation foundation model, our approach creates controllable human of high realism. However, due to the limited performance of existing pose/depth/normal estimators for in-the-wild humans, we find it sometimes fails to generate subtle details like finger and eyes. Besides, the current pipeline still requires body skeleton as input, where deep priors like LLMs can be explored to achieve text-to-pose generation in future work.

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