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In this paper, we aim to tackle the one-shot person re-identification problem where only one image is labelled for each person, while other images are unlabelled. This task is challenging due to the lack of sufficient labelled training…

Computer Vision and Pattern Recognition · Computer Science 2022-01-21 Hui Li , Jimin Xiao , Mingjie Sun , Eng Gee Lim , Yao Zhao

Image denoising has recently taken a leap forward due to machine learning. However, image denoisers, both expert-based and learning-based, are mostly tested on well-behaved generated noises (usually Gaussian) rather than on real-life…

Image and Video Processing · Electrical Eng. & Systems 2020-04-29 Florian Lemarchand , Eduardo Fernandes Montesuma , Maxime Pelcat , Erwan Nogues

Visual anomaly detection aims to identify anomalous regions in images through unsupervised learning paradigms, with increasing application demand and value in fields such as industrial inspection and medical lesion detection. Despite…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Jiangning Zhang , Haoyang He , Zhenye Gan , Qingdong He , Yuxuan Cai , Zhucun Xue , Yabiao Wang , Chengjie Wang , Lei Xie , Yong Liu

Recent deep learning-based image denoising methods have shown impressive performance; however, many lack the flexibility to adjust the denoising strength based on the noise levels, camera settings, and user preferences. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2025-09-05 Youngjin Oh , Junhyeong Kwon , Keuntek Lee , Nam Ik Cho

We propose the novel framework for anomaly detection in images. Our new framework, PNUNet, is based on many normal data and few anomalous data. We assume that some noises are added to the input images and learn to remove the noise. In…

Computer Vision and Pattern Recognition · Computer Science 2019-05-28 Masanari Kimura

Absolute Pose Regression (APR) predicts 6D camera poses but lacks the adaptability to unknown environments without retraining, while Relative Pose Regression (RPR) generalizes better yet requires a large image retrieval database. Visual…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 Junwei Zheng , Ruiping Liu , Yufan Chen , Zhenfang Chen , Kailun Yang , Jiaming Zhang , Rainer Stiefelhagen

Camera calibration is a crucial component in the realm of sports analytics, as it serves as the foundation to extract 3D information out of the broadcast images. Despite the significance of camera calibration research in sports analytics,…

Computer Vision and Pattern Recognition · Computer Science 2025-02-18 Floriane Magera , Thomas Hoyoux , Olivier Barnich , Marc Van Droogenbroeck

The robustness of deep neural networks is usually lacking under adversarial examples, common corruptions, and distribution shifts, which becomes an important research problem in the development of deep learning. Although new deep learning…

Computer Vision and Pattern Recognition · Computer Science 2023-03-01 Chang Liu , Yinpeng Dong , Wenzhao Xiang , Xiao Yang , Hang Su , Jun Zhu , Yuefeng Chen , Yuan He , Hui Xue , Shibao Zheng

While modern deep neural networks (DNNs) achieve state-of-the-art results for illuminant estimation, it is currently necessary to train a separate DNN for each type of camera sensor. This means when a camera manufacturer uses a new sensor,…

Computer Vision and Pattern Recognition · Computer Science 2019-12-17 Mahmoud Afifi , Michael S. Brown

The identification of source cameras from videos, though it is a highly relevant forensic analysis topic, has been studied much less than its counterpart that uses images. In this work we propose a method to identify the source camera of a…

Computer Vision and Pattern Recognition · Computer Science 2020-12-14 Derrick Timmerman , Swaroop Bennabhaktula , Enrique Alegre , George Azzopardi

In this paper we address issues with image retrieval benchmarking on standard and popular Oxford 5k and Paris 6k datasets. In particular, annotation errors, the size of the dataset, and the level of challenge are addressed: new annotation…

Computer Vision and Pattern Recognition · Computer Science 2018-04-02 Filip Radenović , Ahmet Iscen , Giorgos Tolias , Yannis Avrithis , Ondřej Chum

Existing vehicle re-identification (re-id) evaluation benchmarks consider strongly artificial test scenarios by assuming the availability of high quality images and fine-grained appearance at an almost constant image scale, reminiscent to…

Computer Vision and Pattern Recognition · Computer Science 2018-09-27 Aytaç Kanacı , Xiatian Zhu , Shaogang Gong

Advances in image restoration and enhancement techniques have led to discussion about how such algorithmscan be applied as a pre-processing step to improve automatic visual recognition. In principle, techniques like deblurring and…

Computer Vision and Pattern Recognition · Computer Science 2019-01-30 Rosaura G. Vidal , Sreya Banerjee , Klemen Grm , Vitomir Struc , Walter J. Scheirer

Data-efficient image classification using deep neural networks in settings, where only small amounts of labeled data are available, has been an active research area in the recent past. However, an objective comparison between published…

Computer Vision and Pattern Recognition · Computer Science 2021-08-31 Lorenzo Brigato , Björn Barz , Luca Iocchi , Joachim Denzler

Imaging and perception in photon-limited scenarios is necessary for various applications, e.g., night surveillance or photography, high-speed photography, and autonomous driving. In these cases, cameras suffer from low signal-to-noise…

Computer Vision and Pattern Recognition · Computer Science 2023-01-18 Bo Zhang , Yuchen Guo , Runzhao Yang , Zhihong Zhang , Jiayi Xie , Jinli Suo , Qionghai Dai

We investigate the problem of identifying objects that have been added, removed, or moved between a pair of captures (images or videos) of the same scene at different times. Accurately identifying verifiable changes is extremely challenging…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Yuqun Wu , Chih-hao Lin , Henry Che , Aditi Tiwari , Chuhang Zou , Shenlong Wang , Derek Hoiem

Camera model identification has earned paramount importance in the field of image forensics with an upsurge of digitally altered images which are constantly being shared through websites, media, and social applications. But, the task of…

Image and Video Processing · Electrical Eng. & Systems 2019-05-28 Abdul Muntakim Rafi , Uday Kamal , Rakibul Hoque , Abid Abrar , Sowmitra Das , Robert Laganière , Md. Kamrul Hasan

One of the most successful approaches to modern high quality HDR-video capture is to use camera setups with multiple sensors imaging the scene through a common optical system. However, such systems pose several challenges for HDR…

Computer Vision and Pattern Recognition · Computer Science 2013-08-23 Joel Kronander , Stefan Gustavson , Gerhard Bonnet , Anders Ynnerman , Jonas Unger

Image classification with small datasets has been an active research area in the recent past. However, as research in this scope is still in its infancy, two key ingredients are missing for ensuring reliable and truthful progress: a…

Computer Vision and Pattern Recognition · Computer Science 2022-12-26 L. Brigato , B. Barz , L. Iocchi , J. Denzler

Facial expression image editing requires fine-grained control to strictly preserve human identity and background while precisely manipulating expression. However, existing editing benchmarks primarily focus on general scenarios, lacking…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Fengjian Xue , Xuecheng Wu , Heli Sun , Yunyun Shi , Shi Chen , Liangyu Fu , Jinheng Xie , Dingkang Yang , Hao Wang , Junxiao Xue , Liang He