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Contemporary Low-Light Image Enhancement (LLIE) techniques have made notable advancements in preserving image details and enhancing contrast, achieving commendable results on specific datasets. Nevertheless, these approaches encounter…

Computer Vision and Pattern Recognition · Computer Science 2024-06-05 Xiaofeng Liu , Jiaxin Gao , Xin Fan , Risheng Liu

We present a lightweight two-stage framework for low-light image enhancement (LLIE) that achieves competitive perceptual quality with significantly fewer parameters than existing methods. Our approach combines frozen algorithm-based…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 Shimon Murai , Teppei Kurita , Ryuta Satoh , Yusuke Moriuchi

The UG$^{2+}$ challenge in IEEE CVPR 2019 aims to evoke a comprehensive discussion and exploration about how low-level vision techniques can benefit the high-level automatic visual recognition in various scenarios. In its second track, we…

Computer Vision and Pattern Recognition · Computer Science 2020-04-01 Ye Yuan , Wenhan Yang , Wenqi Ren , Jiaying Liu , Walter J. Scheirer , Zhangyang Wang

This paper presents a review of the LoViF 2026 Challenge on Weather Removal in Videos. The challenge encourages the development of methods for restoring clean videos from inputs degraded by adverse weather conditions such as rain and snow,…

Deep learning has shown great potential in accelerating diffusion tensor imaging (DTI). Nevertheless, existing methods tend to suffer from Rician noise and detail loss in reconstructing the DTI-derived parametric maps especially when…

Computer Vision and Pattern Recognition · Computer Science 2024-01-04 Wenxin Fan , Jian Cheng , Cheng Li , Xinrui Ma , Jing Yang , Juan Zou , Ruoyou Wu , Qiegen Liu , Shanshan Wang

Recent advancements in deep learning have yielded promising results for the image shadow removal task. However, most existing methods rely on binary pre-generated shadow masks. The binary nature of such masks could potentially lead to…

Computer Vision and Pattern Recognition · Computer Science 2025-03-13 Xinrui Wang , Lanqing Guo , Xiyu Wang , Siyu Huang , Bihan Wen

This paper proposes a new framework for low-light image enhancement by simultaneously conducting the appearance as well as structure modeling. It employs the structural feature to guide the appearance enhancement, leading to sharp and…

Computer Vision and Pattern Recognition · Computer Science 2023-05-11 Xiaogang Xu , Ruixing Wang , Jiangbo Lu

Deep learning has shown great potential in accelerating diffusion tensor imaging (DTI). Nevertheless, existing methods tend to suffer from Rician noise and eddy current, leading to detail loss in reconstructing the DTI-derived parametric…

Image and Video Processing · Electrical Eng. & Systems 2024-08-21 Wenxin Fan , Jian Cheng , Cheng Li , Jing Yang , Ruoyou Wu , Juan Zou , Shanshan Wang

Adverse conditions like snow, rain, nighttime, and fog, pose challenges for autonomous driving perception systems. Existing methods have limited effectiveness in improving essential computer vision tasks, such as semantic segmentation, and…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Chenghao Qian , Mahdi Rezaei , Saeed Anwar , Wenjing Li , Tanveer Hussain , Mohsen Azarmi , Wei Wang

The rapid iteration and widespread dissemination of deepfake technology have posed severe challenges to information security, making robust and generalizable detection of AI-generated forged images increasingly important. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Zhilin Tu , Kemou Li , Fengpeng Li , Jianwei Fei , Jiamin Zhang , Haiwei Wu

Removing objects from images is a challenging problem that is important for many applications, including mixed reality. For believable results, the shadows that the object casts should also be removed. Current inpainting-based methods only…

Computer Vision and Pattern Recognition · Computer Science 2020-12-22 Edward Zhang , Ricardo Martin-Brualla , Janne Kontkanen , Brian Curless

Poor lighting conditions significantly impact image quality, posing substantial challenges for image editing and visualization. Many existing enhancement methods aim at proposing complex models while neglecting the intrinsic information…

Computer Vision and Pattern Recognition · Computer Science 2026-05-11 Xuanshuo Fu , Lei Kang , Javier Vazquez-Corral

Removing soft and self shadows that lack clear boundaries from a single image is still challenging. Self shadows are shadows that are cast on the object itself. Most existing methods rely on binary shadow masks, without considering the…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Yeying Jin , Wei Ye , Wenhan Yang , Yuan Yuan , Robby T. Tan

Low-light RAW video denoising is a fundamentally challenging task due to severe signal degradation caused by high sensor gain and short exposure times, which are inherently limited by video frame rate requirements. To address this, we…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Youngjin Oh , Junhyeong Kwon , Junyoung Park , Nam Ik Cho

Low-light images suffer from severe noise and low illumination. Current deep learning models that are trained with real-world images have excellent noise reduction, but a ratio parameter must be chosen manually to complete the enhancement…

Image and Video Processing · Electrical Eng. & Systems 2020-04-23 Qingxu Fu , Xiaoguang Di , Yu Zhang

In the real world, camera-based application systems can face many challenges, including environmental factors and distribution shift. In this paper, we investigate how pose and shadow impact a classifier's performance, using the specific…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Shengtai Ju , Amy R. Reibman

We introduce a high-performance fingerprint liveness feature extraction technique that secured first place in LivDet 2023 Fingerprint Representation Challenge. Additionally, we developed a practical fingerprint recognition system with…

Computer Vision and Pattern Recognition · Computer Science 2023-10-25 Kexin Zhu , Bo Lin , Yang Qiu , Adam Yule , Yao Tang , Jiajun Liang

In recent years, deep face recognition methods have demonstrated impressive results on in-the-wild datasets. However, these methods have shown a significant decline in performance when applied to real-world low-resolution benchmarks like…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Mohammad Saeed Ebrahimi Saadabadi , Sahar Rahimi Malakshan , Hossein Kashiani , Nasser M. Nasrabadi

This paper explores improvements to the masked image modeling (MIM) paradigm. The MIM paradigm enables the model to learn the main object features of the image by masking the input image and predicting the masked part by the unmasked part.…

Computer Vision and Pattern Recognition · Computer Science 2022-05-24 Jiawei Mao , Xuesong Yin , Yuanqi Chang , Honggu Zhou
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