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Recently, diffusion models have made remarkable progress in text-to-image (T2I) generation, synthesizing images with high fidelity and diverse contents. Despite this advancement, latent space smoothness within diffusion models remains…

计算机视觉与模式识别 · 计算机科学 2023-12-08 Jiayi Guo , Xingqian Xu , Yifan Pu , Zanlin Ni , Chaofei Wang , Manushree Vasu , Shiji Song , Gao Huang , Humphrey Shi

While latent diffusion models (LDMs), such as Stable Diffusion, are designed for high-resolution (HR) image generation, they often struggle with significant structural distortions when generating images at resolutions higher than their…

计算机视觉与模式识别 · 计算机科学 2025-12-09 Boyuan Cao , Jiaxin Ye , Yujie Wei , Hongming Shan

In real-life conversations, the content is diverse, and there exists the one-to-many problem that requires diverse generation. Previous studies attempted to introduce discrete or Gaussian-based continuous latent variables to address the…

计算与语言 · 计算机科学 2024-04-11 Jianxiang Xiang , Zhenhua Liu , Haodong Liu , Yin Bai , Jia Cheng , Wenliang Chen

In this work, we present FRIGID, a framework with a novel diffusion language model that generates molecular structures conditioned on mass spectra via intermediate fingerprint representations and determined chemical formulae, training at…

High-dimensional data must be highly structured to be learnable. Although the compositional and hierarchical nature of data is often put forward to explain learnability, quantitative measurements establishing these properties are scarce.…

机器学习 · 统计学 2025-03-04 Antonio Sclocchi , Alessandro Favero , Noam Itzhak Levi , Matthieu Wyart

Diffusion models have exhibited impressive prowess in the text-to-image task. Recent methods add image-level structure controls, e.g., edge and depth maps, to manipulate the generation process together with text prompts to obtain desired…

计算机视觉与模式识别 · 计算机科学 2024-08-23 Yibo Zhao , Liang Peng , Yang Yang , Zekai Luo , Hengjia Li , Yao Chen , Zheng Yang , Xiaofei He , Wei Zhao , qinglin lu , Boxi Wu , Wei Liu

The goal of this paper is to generate realistic audio with a lightweight and fast diffusion-based vocoder, named FreGrad. Our framework consists of the following three key components: (1) We employ discrete wavelet transform that decomposes…

音频与语音处理 · 电气工程与系统科学 2024-01-19 Tan Dat Nguyen , Ji-Hoon Kim , Youngjoon Jang , Jaehun Kim , Joon Son Chung

We introduce the Latent Fourier Transform (LatentFT), a framework that provides novel frequency-domain controls for generative music models. LatentFT combines a diffusion autoencoder with a latent-space Fourier transform to separate musical…

声音 · 计算机科学 2026-04-21 Mason Wang , Cheng-Zhi Anna Huang

Diffusion models generate images with an unprecedented level of quality, but how can we freely rearrange image layouts? Recent works generate controllable scenes via learning spatially disentangled latent codes, but these methods do not…

计算机视觉与模式识别 · 计算机科学 2024-04-11 Jiawei Ren , Mengmeng Xu , Jui-Chieh Wu , Ziwei Liu , Tao Xiang , Antoine Toisoul

Diffusion-based image-to-video (I2V) models are increasingly effective, yet they struggle to scale to ultra-high-resolution inputs (e.g., 4K). Generating videos at the model's native resolution often loses fine-grained structure, whereas…

计算机视觉与模式识别 · 计算机科学 2026-03-19 Hugo Caselles-Dupré , Mathis Koroglu , Guillaume Jeanneret , Arnaud Dapogny , Matthieu Cord

Diffusion models have revolutionized image generation, yet several challenges restrict their application to large-image domains, such as digital pathology and satellite imagery. Given that it is infeasible to directly train a model on…

计算机视觉与模式识别 · 计算机科学 2025-03-26 Srikar Yellapragada , Alexandros Graikos , Kostas Triaridis , Prateek Prasanna , Rajarsi R. Gupta , Joel Saltz , Dimitris Samaras

Flow matching and diffusion models have shown impressive results in text-to-image generation, producing photorealistic images through an iterative denoising process. A common strategy to speed up synthesis is to perform early denoising at…

计算机视觉与模式识别 · 计算机科学 2025-07-23 Jyun-Ze Tang , Chih-Fan Hsu , Jeng-Lin Li , Ming-Ching Chang , Wei-Chao Chen

Diffusion models have become the dominant paradigm in text-to-image generation, and test-time scaling (TTS) improves sample quality by allocating additional computation at inference. Existing TTS methods, however, resample the entire image,…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Qin Ren , Yufei Wang , Lanqing Guo , Wen Zhang , Zhiwen Fan , Chenyu You

With recent text-to-image models, anyone can generate deceptively realistic images with arbitrary contents, fueling the growing threat of visual disinformation. A key enabler for generating high-resolution images with low computational cost…

计算机视觉与模式识别 · 计算机科学 2024-03-28 Jonas Ricker , Denis Lukovnikov , Asja Fischer

Diffusion autoencoders (DAs) are variants of diffusion generative models that use an input-dependent latent variable to capture representations alongside the diffusion process. These representations, to varying extents, can be used for…

机器学习 · 计算机科学 2025-06-03 Magdalena Proszewska , Nikolay Malkin , N. Siddharth

Applying pre-trained generative denoising diffusion models (DDMs) for downstream tasks such as image semantic editing usually requires either fine-tuning DDMs or learning auxiliary editing networks in the existing literature. In this work,…

计算机视觉与模式识别 · 计算机科学 2023-10-19 Ye Zhu , Yu Wu , Zhiwei Deng , Olga Russakovsky , Yan Yan

Latent diffusion models (LDMs) achieve state-of-the-art performance across various tasks, including image generation and video synthesis. However, they generally lack robustness, a limitation that remains not fully explored in current…

机器学习 · 计算机科学 2025-06-10 Boris Martirosyan , Alexey Karmanov

We introduce nested diffusion models, an efficient and powerful hierarchical generative framework that substantially enhances the generation quality of diffusion models, particularly for images of complex scenes. Our approach employs a…

计算机视觉与模式识别 · 计算机科学 2024-12-10 Xiao Zhang , Ruoxi Jiang , Rebecca Willett , Michael Maire

Diffusion models are a new class of generative models that have shown outstanding performance in image generation literature. As a consequence, studies have attempted to apply diffusion models to other tasks, such as speech enhancement. A…

音频与语音处理 · 电气工程与系统科学 2024-10-10 Philippe Gonzalez , Zheng-Hua Tan , Jan Østergaard , Jesper Jensen , Tommy Sonne Alstrøm , Tobias May

Blind image restoration remains a significant challenge in low-level vision tasks. Recently, denoising diffusion models have shown remarkable performance in image synthesis. Guided diffusion models, leveraging the potent generative priors…

计算机视觉与模式识别 · 计算机科学 2024-11-20 Jun Xiao , Zihang Lyu , Hao Xie , Cong Zhang , Yakun Ju , Changjian Shui , Kin-Man Lam