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Changyuan Yang

4 accepted papers

2026

Circular-DPO: Aligning Multi-Stage 3D Generative Models via Preference Feedback Loop

CVPR 2026

Multi-stage generative models have shown great promise in 3D content creation due to focused generation of structure or texture in different stages, but their outputs often fail to align with human preferences. The key bottleneck to apply alignment methods is the presence of non-differentiable opera

Cited by 0SourceScholar
2025

Distribution Backtracking Builds A Faster Convergence Trajectory for Diffusion Distillation

ICLR 2025poster

Accelerating the sampling speed of diffusion models remains a significant challenge. Recent score distillation methods distill a heavy teacher model into a student generator to achieve one-step generation, which is optimized by calculating the difference between two score functions on the samples ge…

2024

Reducing Spatial Fitting Error in Distillation of Denoising Diffusion Models

AAAI 2024technical

Denoising Diffusion models have exhibited remarkable capabilities in image generation. However, generating high-quality samples requires a large number of iterations. Knowledge distillation for diffusion models is an effective method to address this limitation with a shortened sampling process but c…

2023

Learning Object Consistency and Interaction in Image Generation from Scene Graphs

IJCAI 2023poster

This paper is concerned with synthesizing images conditioned on a scene graph (SG), a set of object nodes and their edges of interactive relations. We divide existing works into image-oriented and code-oriented methods. In our analysis, the image-oriented methods do not consider object interaction i…