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Infrared (IR) images are essential to improve the visibility of dark or camouflaged objects. Object recognition and segmentation based on a neural network using IR images provide more accuracy and insight than color visible images. But the…

Image and Video Processing · Electrical Eng. & Systems 2019-04-29 Kyongsik Yun , Kevin Yu , Joseph Osborne , Sarah Eldin , Luan Nguyen , Alexander Huyen , Thomas Lu

Thermal infrared (TIR) images, acquired through thermal radiation imaging, are unaffected by variations in lighting conditions and atmospheric haze. However, TIR images inherently lack color and texture information, limiting downstream…

Image and Video Processing · Electrical Eng. & Systems 2025-06-24 Tingting Liu , Yuan Liu , Jinhui Tang , Liyin Yuan , Chengyu Liu , Chunlai Li , Xiubao Sui , Qian Chen

Many surveillance cameras switch between daytime and nighttime modes based on illuminance levels. During the day, the camera records ordinary RGB images through an enabled IR-cut filter. At night, the filter is disabled to capture…

Computer Vision and Pattern Recognition · Computer Science 2024-12-19 Muyao Niu , Zhuoxiao Li , Yifan Zhan , Huy H. Nguyen , Isao Echizen , Yinqiang Zheng

A significant challenge in the field of object detection lies in the system's performance under non-ideal imaging conditions, such as rain, fog, low illumination, or raw Bayer images that lack ISP processing. Our study introduces "Feature…

Computer Vision and Pattern Recognition · Computer Science 2024-04-22 Chuheng Wei , Guoyuan Wu , Matthew J. Barth

Underexposure regions are vital to construct a complete perception of the surroundings for safe autonomous driving. The availability of thermal cameras has provided an essential alternate to explore regions where other optical sensors lack…

Computer Vision and Pattern Recognition · Computer Science 2021-05-04 Farzeen Munir , Shoaib Azam , Muhammd Aasim Rafique , Ahmad Muqeem Sheri , Moongu Jeon , Witold Pedrycz

Despite remarkable progress in image translation, the complex scene with multiple discrepant objects remains a challenging problem. The translated images have low fidelity and tiny objects in fewer details causing unsatisfactory performance…

Computer Vision and Pattern Recognition · Computer Science 2022-12-26 Liyun Zhang , Photchara Ratsamee , Bowen Wang , Zhaojie Luo , Yuki Uranishi , Manabu Higashida , Haruo Takemura

The current industry practice for 24-hour outdoor imaging is to use a silicon camera supplemented with near-infrared (NIR) illumination. This will result in color images with poor contrast at daytime and absence of chrominance at nighttime.…

Image and Video Processing · Electrical Eng. & Systems 2020-05-12 Feifan Lv , Yinqiang Zheng , Yicheng Li , Feng Lu

Today, most methods for image understanding tasks rely on feed-forward neural networks. While this approach has allowed for empirical accuracy, efficiency, and task adaptation via fine-tuning, it also comes with fundamental disadvantages.…

Computer Vision and Pattern Recognition · Computer Science 2024-04-19 Julian Ost , Tanushree Banerjee , Mario Bijelic , Felix Heide

Automotive scene understanding under adverse weather conditions raises a realistic and challenging problem attributable to poor outdoor scene visibility (e.g. foggy weather). However, because most contemporary scene understanding approaches…

Computer Vision and Pattern Recognition · Computer Science 2020-12-11 Naif Alshammari , Samet Akcay , Toby P. Breckon

Getting rid of the fundamental limitations in fitting to the paired training data, recent unsupervised low-light enhancement methods excel in adjusting illumination and contrast of images. However, for unsupervised low light enhancement,…

Computer Vision and Pattern Recognition · Computer Science 2022-07-05 Zhangkai Ni , Wenhan Yang , Hanli Wang , Shiqi Wang , Lin Ma , Sam Kwong

Joint scene understanding and segmentation for automotive applications is a challenging problem in two key aspects:- (1) classifying every pixel in the entire scene and (2) performing this task under unstable weather and illumination…

Machine Learning · Computer Science 2019-09-18 Naif Alshammari , Samet Akçay , Toby P. Breckon

Multi-agent collaborative perception has emerged as a widely recognized technology in the field of autonomous driving in recent years. However, current collaborative perception predominantly relies on LiDAR point clouds, with significantly…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Shaohong Wang , Lu Bin , Xinyu Xiao , Zhiyu Xiang , Hangguan Shan , Eryun Liu

Fine-Grained Image Retrieval~(FGIR) faces challenges in learning discriminative visual representations to retrieve images with similar fine-grained features. Current leading FGIR solutions typically follow two regimes: enforce pairwise…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Xin Jiang , Meiqi Cao , Hao Tang , Fei Shen , Zechao Li

Visual localization is a key step in many robotics pipelines, allowing the robot to (approximately) determine its position and orientation in the world. An efficient and scalable approach to visual localization is to use image retrieval…

Computer Vision and Pattern Recognition · Computer Science 2019-03-05 Asha Anoosheh , Torsten Sattler , Radu Timofte , Marc Pollefeys , Luc Van Gool

The ability to scene understanding in adverse visual conditions, e.g., nighttime, has sparked active research for RGB-Thermal (RGB-T) semantic segmentation. However, it is essentially hampered by two critical problems: 1) the day-night gap…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Yexin Liu , Weiming Zhang , Guoyang Zhao , Jinjing Zhu , Athanasios Vasilakos , Lin Wang

With the strong robusticity on illumination variations, near-infrared (NIR) can be an effective and essential complement to visible (VIS) facial expression recognition in low lighting or complete darkness conditions. However, facial…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Bingjun Luo , Haowen Wang , Jinpeng Wang , Junjie Zhu , Xibin Zhao , Yue Gao

Addressing the issues of severe noise and high frequency structural degradation in visible images under low-light conditions, this paper proposes a Near Infrared (NIR) aided low light image restoration method based on Frequency Decoupled…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Ligen Shi , Zengyu Pang , Chang Liu , Shuchen Sun , Jun Qiu

Existing deep Thermal InfraRed (TIR) trackers only use semantic features to describe the TIR object, which lack the sufficient discriminative capacity for handling distractors. This becomes worse when the feature extraction network is only…

Computer Vision and Pattern Recognition · Computer Science 2019-06-11 Qiao Liu , Xin Li , Zhenyu He , Nana Fan , Di Yuan , Hongpeng Wang

Object Detection, a fundamental computer vision problem, has paramount importance in smart camera systems. However, a truly reliable camera system could be achieved if and only if the underlying object detection component is robust enough…

Computer Vision and Pattern Recognition · Computer Science 2022-08-23 Ujjal Kr Dutta

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