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We present a method of improving visual place recognition and metric localisation under very strong appear- ance change. We learn an invertable generator that can trans- form the conditions of images, e.g. from day to night, summer to…

Computer Vision and Pattern Recognition · Computer Science 2018-03-12 Horia Porav , Will Maddern , Paul Newman

In this paper, we introduce a novel deep-learning method to align cross-spectral images. Our approach relies on a learned descriptor which is invariant to different spectra. Multi-modal images of the same scene capture different signals and…

Computer Vision and Pattern Recognition · Computer Science 2021-10-06 Nati Ofir , Shai Silberstein , Hila Levi , Dani Rozenbaum , Yosi Keller , Sharon Duvdevani Bar

Deep learning models have the capacity to fundamentally revolutionize medical imaging analysis, and they have particularly interesting applications in computer-aided diagnosis. We attempt to use deep learning neural networks to diagnose…

Machine Learning · Computer Science 2020-02-24 Rohit Jammula , Vishnu Rajan Tejus , Shreya Shankar

One weakness of machine-learning algorithms is the need to train the models for a new task. This presents a specific challenge for biometric recognition due to the dynamic nature of databases and, in some instances, the reliance on subject…

Computer Vision and Pattern Recognition · Computer Science 2023-07-12 Kevin Hernandez-Diaz , Fernando Alonso-Fernandez , Josef Bigun

The use of iris as a biometric trait is widely used because of its high level of distinction and uniqueness. Nowadays, one of the major research challenges relies on the recognition of iris images obtained in visible spectrum under…

Computer Vision and Pattern Recognition · Computer Science 2019-01-21 Luiz A. Zanlorensi , Eduardo Luz , Rayson Laroca , Alceu S. Britto , Luiz S. Oliveira , David Menotti

Photorealistic image generation from simulated label maps are necessitated in several contexts, such as for medical training in virtual reality. With conventional deep learning methods, this task requires images that are paired with…

Computer Vision and Pattern Recognition · Computer Science 2023-02-22 Lin Zhang , Tiziano Portenier , Orcun Goksel

When confronted with objects of unknown types in an image, humans can effortlessly and precisely tell their visual boundaries. This recognition mechanism and underlying generalization capability seem to contrast to state-of-the-art image…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Zunlei Feng , Lechao Cheng , Xinchao Wang , Xiang Wang , Yajie Liu , Xiangtong Du , Mingli Song

Near-infrared (NIR) image spectrum translation is a challenging problem with many promising applications. Existing methods struggle with the mapping ambiguity between the NIR and the RGB domains, and generalize poorly due to the limitations…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Xingxing Yang , Jie Chen , Zaifeng Yang

For semantic-guided cross-view image translation, it is crucial to learn where to sample pixels from the source view image and where to reallocate them guided by the target view semantic map, especially when there is little overlap or…

Computer Vision and Pattern Recognition · Computer Science 2023-03-07 Bin Ren , Hao Tang , Yiming Wang , Xia Li , Wei Wang , Nicu Sebe

Unsupervised image translation using adversarial learning has been attracting attention to improve the image quality of medical images. However, adversarial training based on the global evaluation values of discriminators does not provide…

Image and Video Processing · Electrical Eng. & Systems 2022-10-25 Takumi Hase , Megumi Nakao , Mitsuhiro Nakamura , Tetsuya Matsuda

Image to image translation is an active area of research in the field of computer vision, enabling the generation of new images with different styles, textures, or resolutions while preserving their characteristic properties. Recent…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Gaurav Kumar , Soham Satyadharma , Harpreet Singh

In the field of computer vision, visible light images often exhibit low contrast in low-light conditions, presenting a significant challenge. While infrared imagery provides a potential solution, its utilization entails high costs and…

Computer Vision and Pattern Recognition · Computer Science 2024-04-30 Yijia Chen , Pinghua Chen , Xiangxin Zhou , Yingtie Lei , Ziyang Zhou , Mingxian Li

Novel imaging technologies raise many questions concerning the adaptation of computer-aided decision support systems. Classification models either need to be adapted or even newly trained from scratch to exploit the full potential of…

Image and Video Processing · Electrical Eng. & Systems 2020-04-28 Georg Wimmer , Michael Gadermayr , Andreas Vécsei , Andreas Uhl

Interpreting spectropolarimetric observations of the solar atmosphere takes much longer than the acquiring the data. The most important reason for this is that the model fitting, or "inversion", used to infer physical quantities from the…

Solar and Stellar Astrophysics · Physics 2020-12-16 Ivan Milic , Ricardo Gafeira

Most of the existing blind image Super-Resolution (SR) methods assume that the blur kernels are space-invariant. However, the blur involved in real applications are usually space-variant due to object motion, out-of-focus, etc., resulting…

Computer Vision and Pattern Recognition · Computer Science 2023-04-10 Xuhai Chen , Jiangning Zhang , Chao Xu , Yabiao Wang , Chengjie Wang , Yong Liu

Object detection in natural scenes can be a challenging task. In many real-life situations, the visible spectrum is not suitable for traditional computer vision tasks. Moving outside the visible spectrum range, such as the thermal spectrum…

Computer Vision and Pattern Recognition · Computer Science 2021-02-08 Md Osman Gani , Somenath Kuiry , Alaka Das , Mita Nasipuri , Nibaran Das

Visual recognition under adverse conditions is a very important and challenging problem of high practical value, due to the ubiquitous existence of quality distortions during image acquisition, transmission, or storage. While deep neural…

Computer Vision and Pattern Recognition · Computer Science 2019-04-04 Ding Liu , Bowen Cheng , Zhangyang Wang , Haichao Zhang , Thomas S. Huang

Cross-domain image-to-image translation should satisfy two requirements: (1) preserve the information that is common to both domains, and (2) generate convincing images covering variations that appear in the target domain. This is…

Computer Vision and Pattern Recognition · Computer Science 2019-10-22 Adam W. Harley , Shih-En Wei , Jason Saragih , Katerina Fragkiadaki

This paper addresses the problem of inferring unseen cross-modal image-to-image translations between multiple modalities. We assume that only some of the pairwise translations have been seen (i.e. trained) and infer the remaining unseen…

Computer Vision and Pattern Recognition · Computer Science 2020-05-18 Yaxing Wang , Luis Herranz , Joost van de Weijer

Neural networks allow solving many ill-posed inverse problems with unprecedented performance. Physics informed approaches already progressively replace carefully hand-crafted reconstruction algorithms in real applications. However, these…

Machine Learning · Computer Science 2023-12-19 Alban Gossard , Pierre Weiss