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Yiyang Ma

8 accepted papers

2026

Exploring Position Encoding Mechanism in Diffusion U-Net for Training-free High-resolution Image Generation

AAAI 2026technical

Denoising higher-resolution latents using a pre-trained U-Net often results in repetitive and disordered image patterns. In this work, we are motivated to reveal the intrinsic cause of such pattern disruption in high-resolution image generation. Through theoretical analysis and empirical studies, we

Cited by 0SourcePDFScholar
2026

ResDiT: Evoking the Intrinsic Resolution Scalability in Diffusion Transformers

CVPR 2026

Leveraging pre-trained Diffusion Transformers (DiTs) for high-resolution (HR) image synthesis often leads to spatial layout collapse and degraded texture fidelity. Prior work mitigates these issues with complex pipelines that first perform a base-resolution (i.e., training-resolution) denoising proc

Cited by 0SourceScholar
2025

Janus: Decoupling Visual Encoding for Unified Multimodal Understanding and Generation

CVPR 2025poster

We introduce Janus, an autoregressive framework that unifies multimodal understanding and generation. Prior research often relies on a single visual encoder for both tasks, such as Chameleon. However, due to the differing levels of information granularity required by multimodal understanding and gen…

2025

JanusFlow: Harmonizing Autoregression and Rectified Flow for Unified Multimodal Understanding and Generation

CVPR 2025poster

We present JanusFlow, a powerful framework that unifies image understanding and generation in a single model.JanusFlow introduces a minimalist architecture that integrates autoregressive language models with rectified flow, a state-of-the-art method in generative modeling.Our key finding demonstrate…

2024

Correcting Diffusion-Based Perceptual Image Compression with Privileged End-to-End Decoder

ICML 2024poster

The images produced by diffusion models can attain excellent perceptual quality. However, it is challenging for diffusion models to guarantee distortion, hence the integration of diffusion models and image compression models still needs more comprehensive explorations. This paper presents a diffusio…

Cited by 3SourcePDFScholar
2024

MacDiff: Unified Skeleton Modeling with Masked Conditional Diffusion

ECCV 2024poster

"Self-supervised learning has proved effective for skeleton-based human action understanding. However, previous works either rely on contrastive learning that suffers false negative problems or are based on reconstruction that learns too much unessential low-level clues, leading to limited represent…

2024

Solving Diffusion ODEs with Optimal Boundary Conditions for Better Image Super-Resolution

ICLR 2024poster

Diffusion models, as a kind of powerful generative model, have given impressive results on image super-resolution (SR) tasks. However, due to the randomness introduced in the reverse process of diffusion models, the performances of diffusion-based SR models are fluctuating at every time of sampling,…

Cited by 9SourcePDFScholar
2023

MM-Diffusion: Learning Multi-Modal Diffusion Models for Joint Audio and Video Generation

CVPR 2023poster

We propose the first joint audio-video generation framework that brings engaging watching and listening experiences simultaneously, towards high-quality realistic videos. To generate joint audio-video pairs, we propose a novel Multi-Modal Diffusion model (i.e., MM-Diffusion), with two-coupled denois…