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This paper outlines an end-to-end optimized lossy image compression framework using diffusion generative models. The approach relies on the transform coding paradigm, where an image is mapped into a latent space for entropy coding and, from…

Image and Video Processing · Electrical Eng. & Systems 2024-01-03 Ruihan Yang , Stephan Mandt

In this paper, we propose a Physical Imaging Guided perceptual framework for Underwater Image Quality Assessment (UIQA), termed PIGUIQA. First, we formulate UIQA as a comprehensive problem that considers the combined effects of direct…

Image and Video Processing · Electrical Eng. & Systems 2025-12-23 Weizhi Xian , Mingliang Zhou , Leong Hou U , Zhengguo Li

Diffusion models have demonstrated significant potential in producing high-quality images in medical image translation to aid disease diagnosis, localization, and treatment. Nevertheless, current diffusion models have limited success in…

Image and Video Processing · Electrical Eng. & Systems 2024-11-26 Yunxiang Li , Hua-Chieh Shao , Xiaoxue Qian , You Zhang

Diffusion models have shown remarkable capabilities in generating high quality and creative images conditioned on text. An interesting application of such models is structure preserving text guided image editing. Existing approaches rely on…

Computer Vision and Pattern Recognition · Computer Science 2023-03-22 Hareesh Ravi , Sachin Kelkar , Midhun Harikumar , Ajinkya Kale

In recent years, diffusion models have become the leading approach for distribution learning. This paper focuses on structure-preserving diffusion models (SPDM), a specific subset of diffusion processes tailored for distributions with…

Machine Learning · Computer Science 2025-03-12 Haoye Lu , Spencer Szabados , Yaoliang Yu

Existing methods for restoring degraded human-centric images often struggle with insufficient fidelity, particularly in human body restoration (HBR). Recent diffusion-based restoration methods commonly adapt pre-trained text-to-image…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Jue Gong , Zihan Zhou , Jingkai Wang , Shu Li , Libo Liu , Jianliang Lan , Yulun Zhang

Cone-beam computed tomography (CBCT) images are problematic in clinical medicine because of their low contrast and high artifact content compared with conventional CT images. Although there are some studies to improve image quality, in…

Image and Video Processing · Electrical Eng. & Systems 2026-03-30 Naruki Murahashi , Mitsuhiro Nakamura , Megumi Nakao

Most existing super-resolution methods and datasets have been developed to improve the image quality in well-lighted conditions. However, these methods do not work well in real-world low-light conditions as the images captured in such…

Computer Vision and Pattern Recognition · Computer Science 2024-10-18 Yang Liu , Yaofang Liu , Jinshan Pan , Yuxiang Hui , Fan Jia , Raymond H. Chan , Tieyong Zeng

Diffusion models have recently achieved significant success in various image manipulation tasks, including image super-resolution and perceptual quality enhancement. Pretrained text-to-image models, such as Stable Diffusion, have exhibited…

Computer Vision and Pattern Recognition · Computer Science 2025-10-16 Sanchar Palit , Subhasis Chaudhuri , Biplab Banerjee

Channel knowledge map (CKM) is a promising technology to enable environment-aware wireless communications and sensing with greatly enhanced performance, by offering location-specific channel prior information for future wireless networks.…

Signal Processing · Electrical Eng. & Systems 2025-04-25 Shen Fu , Yong Zeng , Zijian Wu , Di Wu , Shi Jin , Cheng-Xiang Wang , Xiqi Gao

Conditional image-to-video (cI2V) generation aims to synthesize a new plausible video starting from an image (e.g., a person's face) and a condition (e.g., an action class label like smile). The key challenge of the cI2V task lies in the…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Haomiao Ni , Changhao Shi , Kai Li , Sharon X. Huang , Martin Renqiang Min

Diffusion-based generative image compression has demonstrated remarkable potential for achieving realistic reconstruction at ultra-low bitrates. The key to unlocking this potential lies in making the entire compression process…

Computer Vision and Pattern Recognition · Computer Science 2026-03-26 Xihua Sheng , Lingyu Zhu , Tianyu Zhang , Dong Liu , Shiqi Wang , Jing Wang

Seismic imaging from sparsely acquired data faces challenges such as low image quality, discontinuities, and migration swing artifacts. Existing convolutional neural network (CNN)-based methods struggle with complex feature distributions…

Geophysics · Physics 2024-08-01 Xingchen Shi , Shijun Cheng , Weijian Mao , Wei Ouyang

This paper contributes to the "BraTS 2024 Brain MR Image Synthesis Challenge" and presents a conditional Wavelet Diffusion Model (cWDM) for directly solving a paired image-to-image translation task on high-resolution volumes. While deep…

Image and Video Processing · Electrical Eng. & Systems 2024-11-27 Paul Friedrich , Alicia Durrer , Julia Wolleb , Philippe C. Cattin

Underwater images are typically characterized by color cast, haze, blurring, and uneven illumination due to the selective absorption and scattering when light propagates through the water, which limits their practical applications.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Yuemei Li , Guojia Hou , Peixian Zhuang , Zhenkuan Pan

High-fidelity text-to-image diffusion models have revolutionized visual content generation, but their widespread use raises significant ethical concerns, including intellectual property protection and the misuse of synthetic media. To…

Computer Vision and Pattern Recognition · Computer Science 2025-08-21 Yunzhuo Chen , Naveed Akhtar , Nur Al Hasan Haldar , Ajmal Mian

Depth information plays a crucial role in autonomous systems for environmental perception and robot state estimation. With the rapid development of deep neural network technology, depth estimation has been extensively studied and shown…

Robotics · Computer Science 2024-11-11 Quang Truong Nguyen , Thanh Nguyen Canh , Xiem HoangVan

Diffusion models have rapidly become a vital part of deep generative architectures, given today's increasing demands. Obtaining large, high-performance diffusion models demands significant resources, highlighting their importance as…

Cryptography and Security · Computer Science 2023-11-30 Sen Peng , Yufei Chen , Cong Wang , Xiaohua Jia

Diffusion models have emerged as a powerful generative method for synthesizing high-quality and diverse set of images. In this paper, we propose a video generation method based on diffusion models, where the effects of motion are modeled in…

Computer Vision and Pattern Recognition · Computer Science 2022-12-02 Kangfu Mei , Vishal M. Patel

Text-to-image diffusion models have shown powerful ability on conditional image synthesis. With large-scale vision-language pre-training, diffusion models are able to generate high-quality images with rich texture and reasonable structure…

Computer Vision and Pattern Recognition · Computer Science 2024-08-16 Hefeng Wang , Jiale Cao , Jin Xie , Aiping Yang , Yanwei Pang