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The training of diffusion-based models for image generation is predominantly controlled by a select few Big Tech companies, raising concerns about privacy, copyright, and data authority due to their lack of transparency regarding training…

Machine Learning · Computer Science 2024-06-19 Matthijs de Goede , Bart Cox , Jérémie Decouchant

Optical remote sensing image dehazing presents significant challenges due to its extensive spatial scale and highly non-uniform haze distribution, which traditional single-image dehazing methods struggle to address effectively. While…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Zhicheng Zhao , Jinquan Yan , Chenglong Li , Xiao Wang , Jin Tang

The rapid progress of Deepfake technology has made face swapping highly realistic, raising concerns about the malicious use of fabricated facial content. Existing methods often struggle to generalize to unseen domains due to the diverse…

Computer Vision and Pattern Recognition · Computer Science 2024-10-08 Ke Sun , Shen Chen , Taiping Yao , Hong Liu , Xiaoshuai Sun , Shouhong Ding , Rongrong Ji

In this paper, we propose a diffusion-based face swapping framework for the first time, called DiffFace, composed of training ID conditional DDPM, sampling with facial guidance, and a target-preserving blending. In specific, in the training…

Computer Vision and Pattern Recognition · Computer Science 2022-12-29 Kihong Kim , Yunho Kim , Seokju Cho , Junyoung Seo , Jisu Nam , Kychul Lee , Seungryong Kim , KwangHee Lee

Due to the high complexity and technical requirements of industrial production processes, surface defects will inevitably appear, which seriously affects the quality of products. Although existing lightweight detection networks are highly…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Xuyi Yu

Semantic image synthesis aims to generate high-quality images given semantic conditions, i.e. segmentation masks and style reference images. Existing methods widely adopt generative adversarial networks (GANs). GANs take all conditional…

Computer Vision and Pattern Recognition · Computer Science 2024-08-21 Feng Liu , Xiaobin Chang

Large-scale diffusion-based generative models have led to breakthroughs in text-conditioned high-resolution image synthesis. Starting from random noise, such text-to-image diffusion models gradually synthesize images in an iterative fashion…

Computer Vision and Pattern Recognition · Computer Science 2023-03-15 Yogesh Balaji , Seungjun Nah , Xun Huang , Arash Vahdat , Jiaming Song , Qinsheng Zhang , Karsten Kreis , Miika Aittala , Timo Aila , Samuli Laine , Bryan Catanzaro , Tero Karras , Ming-Yu Liu

Existing single image dehazing methods have demonstrated satisfactory performance on homogeneous thin-haze images; however, they often struggle with non-homogeneous hazy images that exhibit spatially varying haze concentrations and abrupt…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Yingming Zhang , Wuqi Su , Qing Xiao , Yonggang Yang

Diffusion models have emerged as a leading technique for generating images due to their ability to create high-resolution and realistic images. Despite their strong performance, diffusion models still struggle in managing image collections…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Hailong Yang , Te Zhang , Kup-sze Choi , Zhaohong Deng

Fisheye image rectification has a long-term unresolved issue with synthetic-to-real generalization. In most previous works, the model trained on the synthetic images obtains unsatisfactory performance on the real-world fisheye image. To…

Computer Vision and Pattern Recognition · Computer Science 2023-01-30 Shangrong Yang , Chunyu Lin , Kang Liao , Yao Zhao

Model-based single image dehazing algorithms restore images with sharp edges and rich details at the expense of low PSNR values. Data-driven ones restore images with high PSNR values but with low contrast, and even some remaining haze. In…

Computer Vision and Pattern Recognition · Computer Science 2022-06-24 Zhengguo Li , Chaobing Zheng , Haiyan Shu , Shiqian Wu

High Dynamic Range (HDR) images can be recovered from several Low Dynamic Range (LDR) images by existing Deep Neural Networks (DNNs) techniques. Despite the remarkable progress, DNN-based methods still generate ghosting artifacts when LDR…

Computer Vision and Pattern Recognition · Computer Science 2023-11-03 Qingsen Yan , Tao Hu , Yuan Sun , Hao Tang , Yu Zhu , Wei Dong , Luc Van Gool , Yanning Zhang

Echocardiography has been a prominent tool for the diagnosis of cardiac disease. However, these diagnoses can be heavily impeded by poor image quality. Acoustic clutter emerges due to multipath reflections imposed by layers of skin,…

Signal Processing · Electrical Eng. & Systems 2025-03-18 Tristan S. W. Stevens , Faik C. Meral , Jason Yu , Iason Z. Apostolakis , Jean-Luc Robert , Ruud J. G. van Sloun

We propose DiffusionDet, a new framework that formulates object detection as a denoising diffusion process from noisy boxes to object boxes. During the training stage, object boxes diffuse from ground-truth boxes to random distribution, and…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Shoufa Chen , Peize Sun , Yibing Song , Ping Luo

Probabilistic denoising diffusion models (DDMs) have set a new standard for 2D image generation. Extending DDMs for 3D content creation is an active field of research. Here, we propose TetraDiffusion, a diffusion model that operates on a…

Computer Vision and Pattern Recognition · Computer Science 2024-08-12 Nikolai Kalischek , Torben Peters , Jan D. Wegner , Konrad Schindler

Recent work has showcased the significant potential of diffusion models in pose-guided person image synthesis. However, owing to the inconsistency in pose between the source and target images, synthesizing an image with a distinct pose,…

Computer Vision and Pattern Recognition · Computer Science 2024-11-22 Fei Shen , Hu Ye , Jun Zhang , Cong Wang , Xiao Han , Wei Yang

Many self-supervised denoising approaches have been proposed in recent years. However, these methods tend to overly smooth images, resulting in the loss of fine structures that are essential for medical applications. In this paper, we…

Image and Video Processing · Electrical Eng. & Systems 2025-04-02 Basar Demir , Yikang Liu , Xiao Chen , Eric Z. Chen , Lin Zhao , Boris Mailhe , Terrence Chen , Shanhui Sun

Camouflaged object detection is a challenging task that aims to identify objects that are highly similar to their background. Due to the powerful noise-to-image denoising capability of denoising diffusion models, in this paper, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Zhennan Chen , Rongrong Gao , Tian-Zhu Xiang , Fan Lin

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…

Computer Vision and Pattern Recognition · Computer Science 2024-11-20 Jun Xiao , Zihang Lyu , Hao Xie , Cong Zhang , Yakun Ju , Changjian Shui , Kin-Man Lam

Recovering degraded low-resolution text images is challenging, especially for Chinese text images with complex strokes and severe degradation in real-world scenarios. Ensuring both text fidelity and style realness is crucial for…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Yuzhe Zhang , Jiawei Zhang , Hao Li , Zhouxia Wang , Luwei Hou , Dongqing Zou , Liheng Bian