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YILEI LI

4 accepted papers

2025

SteinDreamer: Variance Reduction for Text-to-3D Score Distillation via Stein Identity

AISTATS 2025poster

Score distillation has emerged as one of the most prevalent approaches for text-to-3D asset synthesis. Essentially, score distillation updates 3D parameters by lifting and back-propagating scores averaged over different views. In this paper, we reveal that the gradient estimation in score distillati…

Cited by 0SourceScholar
2024

Taming Mode Collapse in Score Distillation for Text-to-3D Generation

CVPR 2024poster

Despite the remarkable performance of score distillation in text-to-3D generation such techniques notoriously suffer from view inconsistency issues also known as "Janus" artifact where the generated objects fake each view with multiple front faces. Although empirically effective methods have approac…

Cited by 22SourcePDFScholar
2024

WaSt-3D: Wasserstein-2 Distance for Scene-to-Scene Stylization on 3D Gaussians

ECCV 2024poster

"While style transfer techniques have been well-developed for 2D image stylization, the extension of these methods to 3D scenes remains relatively unexplored. Existing approaches demonstrate proficiency in transferring colors and textures but often struggle with replicating the geometry of the scene…

2023

MMG-Ego4D: Multimodal Generalization in Egocentric Action Recognition

CVPR 2023poster

In this paper, we study a novel problem in egocentric action recognition, which we term as "Multimodal Generalization" (MMG). MMG aims to study how systems can generalize when data from certain modalities is limited or even completely missing. We thoroughly investigate MMG in the context of standard…