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Diffusion models have achieved remarkable success in image synthesis. However, addressing artifacts and unrealistic regions remains a critical challenge. We propose self-refining diffusion, a novel framework that enhances image generation…

Computer Vision and Pattern Recognition · Computer Science 2025-12-10 Seoyeon Lee , Gwangyeol Yu , Chaewon Kim , Jonghyuk Park

Magnetic Resonance Fingerprinting (MRF) enables fast quantitative imaging by matching signal evolutions to a predefined dictionary. However, conventional dictionary matching suffers from exponential growth in computational cost and memory…

Image and Video Processing · Electrical Eng. & Systems 2025-07-08 Tianyi Ding , Hongli Chen , Yang Gao , Zhuang Xiong , Feng Liu , Martijn A. Cloos , Hongfu Sun

Face morphing attacks present a significant threat to face recognition systems used in electronic identity enrolment and border control, particularly in single-image morphing attack detection (S-MAD) scenarios where no trusted reference is…

Computer Vision and Pattern Recognition · Computer Science 2026-01-29 Diogo J. Paulo , Hugo Proença , João C. Neves

Image Phase Alignment Super-Sampling (ImPASS) is a computational imaging algorithm for converting a sequence of displaced low-resolution images into a single high-resolution image. The method consists of a unique combination of Phase…

Optics · Physics 2025-09-01 James N. Caron

The latest deep learning-based approaches have shown promising results for the challenging task of inpainting missing regions of an image. However, the existing methods often generate contents with blurry textures and distorted structures…

Computer Vision and Pattern Recognition · Computer Science 2019-07-05 Hongyu Liu , Bin Jiang , Yi Xiao , Chao Yang

Recently the dense Simultaneous Localization and Mapping (SLAM) based on neural implicit representation has shown impressive progress in hole filling and high-fidelity mapping. Nevertheless, existing methods either heavily rely on known…

Robotics · Computer Science 2024-11-07 Jiahui Wang , Yinan Deng , Yi Yang , Yufeng Yue

As one of the fundamental functions of autonomous driving system, freespace detection aims at classifying each pixel of the image captured by the camera as drivable or non-drivable. Current works of freespace detection heavily rely on large…

Computer Vision and Pattern Recognition · Computer Science 2022-10-07 Yuanbin Wang , Leyan Zhu , Shaofei Huang , Tianrui Hui , Xiaojie Li , Fei Wang , Si Liu

There has been exciting progress in generating images from natural language or layout conditions. However, these methods struggle to faithfully reproduce complex scenes due to the insufficient modeling of multiple objects and their…

Computer Vision and Pattern Recognition · Computer Science 2024-10-02 Yunnan Wang , Ziqiang Li , Zequn Zhang , Wenyao Zhang , Baao Xie , Xihui Liu , Wenjun Zeng , Xin Jin

Compression at low bitrates in modern codecs often introduces banding artifacts, especially in smooth regions such as skies. These artifacts degrade visual quality and are common in user-generated content due to repeated transcoding. We…

Image and Video Processing · Electrical Eng. & Systems 2025-12-10 Xinyi Wang , Smaranda Tasmoc , Nantheera Anantrasirichai , Angeliki Katsenou

Multimodal image alignment is the process of finding spatial correspondences between images formed by different imaging techniques or under different conditions, to facilitate heterogeneous data fusion and correlative analysis. The…

Computer Vision and Pattern Recognition · Computer Science 2022-07-01 Johan Öfverstedt , Joakim Lindblad , Nataša Sladoje

Accurate segmentation of tumors and adjacent normal tissues in medical images is essential for surgical planning and tumor staging. Although foundation models generally perform well in segmentation tasks, they often struggle to focus on…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Kai Han , Siqi Ma , Chengxuan Qian , Jun Chen , Chongwen Lyu , Yuqing Song , Zhe Liu

Transformer-based methods have demonstrated impressive results in medical image restoration, attributed to the multi-head self-attention (MSA) mechanism in the spatial dimension. However, the majority of existing Transformers conduct…

Image and Video Processing · Electrical Eng. & Systems 2024-07-15 Zhiwen Yang , Haowei Chen , Ziniu Qian , Yang Zhou , Hui Zhang , Dan Zhao , Bingzheng Wei , Yan Xu

In the field of Blind Image Quality Assessment (BIQA), accurately predicting the perceptual quality of authentically distorted images remains highly challenging due to the diverse and complex distortions present in natural environments.…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Yu Li , Puchao Zhou , Yachun Mi , Yanfeng Wu , Xiaoming Wang , Shaohui Liu

Deep neural networks are often not robust to semantically-irrelevant changes in the input. In this work we address the issue of robustness of state-of-the-art deep convolutional neural networks (CNNs) against commonly occurring distortions…

Computer Vision and Pattern Recognition · Computer Science 2020-12-03 Nikhil Kapoor , Chun Yuan , Jonas Löhdefink , Roland Zimmermann , Serin Varghese , Fabian Hüger , Nico Schmidt , Peter Schlicht , Tim Fingscheidt

Image matting is a long-standing problem in computer graphics and vision, mostly identified as the accurate estimation of the foreground in input images. We argue that the foreground objects can be represented by different-level…

Computer Vision and Pattern Recognition · Computer Science 2021-03-04 Yu Qiao , Yuhao Liu , Qiang Zhu , Xin Yang , Yuxin Wang , Qiang Zhang , Xiaopeng Wei

The application of diffusion transformers is suffering from their significant inference costs. Recently, feature caching has been proposed to solve this problem by reusing features from previous timesteps, thereby skipping computation in…

Recent diffusion-based image editing approaches have exhibited impressive editing capabilities in images with simple compositions. However, localized editing in complex scenarios has not been well-studied in the literature, despite its…

Computer Vision and Pattern Recognition · Computer Science 2023-12-22 Qi Mao , Lan Chen , Yuchao Gu , Zhen Fang , Mike Zheng Shou

For time-frequency (TF) domain speech enhancement (SE) methods, the overlap-and-add operation in the inverse TF transformation inevitably leads to an algorithmic delay equal to the window size. However, typical causal SE systems fail to…

Audio and Speech Processing · Electrical Eng. & Systems 2025-01-22 Yuewei Zhang , Huanbin Zou , Jie Zhu

The proliferation of sophisticated image editing tools and generative artificial intelligence models has made verifying the authenticity of digital images increasingly challenging, with important implications for journalism, forensic…

Computer Vision and Pattern Recognition · Computer Science 2026-05-14 Kaixiang Zhao , Tianrun Yu , Aoxu Zhang , Junhao Su , Porter Jenkins , Amanda Hughes

Universal deepfake detection aims to identify AI-generated images across a broad range of generative models, including unseen ones. This requires robust generalization to new and unseen deepfakes, which emerge frequently, while minimizing…

Computer Vision and Pattern Recognition · Computer Science 2026-02-04 Chandler Timm C. Doloriel , Habib Ullah , Kristian Hovde Liland , Fadi Al Machot , Ngai-Man Cheung