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Generative diffusion models can provide powerful prior probability models for inverse problems in imaging, but existing implementations suffer from two key limitations: $(i)$ the prior density is represented implicitly, and $(ii)$ they rely…

Machine Learning · Computer Science 2026-05-19 Nicolas Zilberstein , Santiago Segarra , Eero Simoncelli , Florentin Guth

Diffusion generative models have excelled at diverse image generation and reconstruction tasks across fields. A less explored avenue is their application to discriminative tasks involving regression or classification problems. The…

Cosmology and Nongalactic Astrophysics · Physics 2025-02-26 Nayantara Mudur , Carolina Cuesta-Lazaro , Douglas P. Finkbeiner

The emergence of generative AI and controllable diffusion has made image-to-image synthesis increasingly practical and efficient. However, when input images exhibit low entropy and sparse, the inherent characteristics of diffusion models…

Computer Vision and Pattern Recognition · Computer Science 2025-01-14 Hao Wang , Xiwen Chen , Ashish Bastola , Jiayou Qin , Abolfazl Razi

While GAN-based models have been successful in image stylization tasks, they often struggle with structure preservation while stylizing a wide range of input images. Recently, diffusion models have been adopted for image stylization but…

Computer Vision and Pattern Recognition · Computer Science 2024-04-03 Hansam Cho , Jonghyun Lee , Seunggyu Chang , Yonghyun Jeong

We offer a method for one-shot mask-guided image synthesis that allows controlling manipulations of a single image by inverting a quasi-robust classifier equipped with strong regularizers. Our proposed method, entitled MAGIC, leverages…

Computer Vision and Pattern Recognition · Computer Science 2023-07-03 Mozhdeh Rouhsedaghat , Masoud Monajatipoor , C. -C. Jay Kuo , Iacopo Masi

We present OminiControl, a novel approach that rethinks how image conditions are integrated into Diffusion Transformer (DiT) architectures. Current image conditioning methods either introduce substantial parameter overhead or handle only…

Computer Vision and Pattern Recognition · Computer Science 2025-07-08 Zhenxiong Tan , Songhua Liu , Xingyi Yang , Qiaochu Xue , Xinchao Wang

Text-to-image generation models have achieved remarkable capabilities in synthesizing images, but often struggle to provide fine-grained control over the output. Existing guidance approaches, such as segmentation maps and depth maps,…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Sangmin Jung , Utkarsh Nath , Yezhou Yang , Giulia Pedrielli , Joydeep Biswas , Amy Zhang , Hassan Ghasemzadeh , Pavan Turaga

Diffusion models have the ability to generate high quality images by denoising pure Gaussian noise images. While previous research has primarily focused on improving the control of image generation through adjusting the denoising process,…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Jiafeng Mao , Xueting Wang , Kiyoharu Aizawa

Monocular depth estimation is a challenging task that predicts the pixel-wise depth from a single 2D image. Current methods typically model this problem as a regression or classification task. We propose DiffusionDepth, a new approach that…

Computer Vision and Pattern Recognition · Computer Science 2023-08-30 Yiqun Duan , Xianda Guo , Zheng Zhu

Diffusion models are trained by learning a sequence of models that reverse each step of noise corruption. Typically, the model parameters are fully shared across multiple timesteps to enhance training efficiency. However, since the…

Computer Vision and Pattern Recognition · Computer Science 2025-03-17 Qianli Ma , Xuefei Ning , Dongrui Liu , Li Niu , Linfeng Zhang

Aligning diffusion models to downstream tasks often requires finetuning new models or gradient-based guidance at inference time to enable sampling from the reward-tilted posterior. In this work, we explore a simple inference-time…

Computer Vision and Pattern Recognition · Computer Science 2025-05-06 Anuj Singh , Sayak Mukherjee , Ahmad Beirami , Hadi Jamali-Rad

Segmentation of enhancement in LGE cardiac MRI is critical for diagnosing various ischemic and non-ischemic cardiomyopathies. However, creating pixel-level annotations for these images is challenging and labor-intensive, leading to limited…

Artificial Intelligence · Computer Science 2026-03-20 Athira J. Jacob , Puneet Sharma , Daniel Rueckert

Diffusion models achieve remarkable quality in image generation, but at a cost. Iterative denoising requires many time steps to produce high fidelity images. We argue that the denoising process is crucially limited by an accumulation of the…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Hui Lu , Albert ali Salah , Ronald Poppe

Diffusion-based image compression has demonstrated impressive perceptual performance. However, it suffers from two critical drawbacks: (1) excessive decoding latency due to multi-step sampling, and (2) poor fidelity resulting from…

Computer Vision and Pattern Recognition · Computer Science 2025-12-03 Zheng Chen , Mingde Zhou , Jinpei Guo , Jiale Yuan , Yifei Ji , Yulun Zhang

We introduce an inversion based method, denoted as IMAge-Guided model INvErsion (IMAGINE), to generate high-quality and diverse images from only a single training sample. We leverage the knowledge of image semantics from a pre-trained…

Computer Vision and Pattern Recognition · Computer Science 2021-04-14 Pei Wang , Yijun Li , Krishna Kumar Singh , Jingwan Lu , Nuno Vasconcelos

Recent advancements in diffusion models have notably improved the perceptual quality of generated images in text-to-image synthesis tasks. However, diffusion models often struggle to produce images that accurately reflect the intended…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Yang Zhang , Teoh Tze Tzun , Lim Wei Hern , Tiviatis Sim , Kenji Kawaguchi

Understanding causal dependencies in observational data is critical for informing decision-making. These relationships are often modeled as Bayesian Networks (BNs) and Directed Acyclic Graphs (DAGs). Existing methods, such as NOTEARS and…

Machine Learning · Computer Science 2026-04-03 Hao Zhu , Di Zhou , Donna Slonim

Diffusion models have demonstrated remarkable efficacy in generating high-quality samples. Existing diffusion-based image restoration algorithms exploit pre-trained diffusion models to leverage data priors, yet they still preserve elements…

Image and Video Processing · Electrical Eng. & Systems 2024-08-07 Hongjie Wu , Linchao He , Mingqin Zhang , Dongdong Chen , Kunming Luo , Mengting Luo , Ji-Zhe Zhou , Hu Chen , Jiancheng Lv

In this paper, we propose a novel framework for controllable video diffusion, OmniVDiff , aiming to synthesize and comprehend multiple video visual content in a single diffusion model. To achieve this, OmniVDiff treats all video visual…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Dianbing Xi , Jiepeng Wang , Yuanzhi Liang , Xi Qiu , Yuchi Huo , Rui Wang , Chi Zhang , Xuelong Li

Modern diffusion-based image generative models have made significant progress and become promising to enrich training data for the object detection task. However, the generation quality and the controllability for complex scenes containing…

Computer Vision and Pattern Recognition · Computer Science 2024-11-07 Jingyuan Zhu , Shiyu Li , Yuxuan Liu , Ping Huang , Jiulong Shan , Huimin Ma , Jian Yuan