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Xiang-Qian Shen

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Aug 2026

Illumination Explorer: All-Frequency Illumination Estimation via HEALPix-Guided Diffusion

Estimating panoramic illumination from a single limited-FOV input image is a critical yet challenging task for rendering realistic objects with complex materials in augmented reality. Existing methods typically either estimate parameterized lighting models or directly generate panoramas in an end-to-end manner. However...

Zhongyun Bao, Shiyuan Shen, Xiang-Qian Shen et al. · 0 citations
Aug 2026

Geometry-Informed Auxiliary Priors for Consistent 3D Content Generation.

This work proposes GeometryAP, a training-free framework for consistent 3D content generation via geometry-informed auxiliary priors in a two-stage "generate-then-reconstruct" pipeline, and proposes the 3D Gaussian-based Global-to-Local Mesh optimizer (GaussGLMeshizer).

Huizhi Zhu, Yanping Fu, Xiang-Qian Shen et al. · 0 citations
Jul 2026

SARG-GS: semantic-augmented and residual-guided 3D Gaussian Splatting for sparse view synthesis

SARG-GS is proposed, a geometry-driven 3DGS framework tailored for sparse-view scenarios, comprising a Semantic Augmented Epipolar Fusion (SAEF) module and a Residual Guided Reprojection Compensation (RRC) module, which achieves superior structural completeness and rendering fidelity with as few as three input views.

Huan Zhou, Huizhi Zhu, Jiongming Qin et al. · 0 citations

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