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Vehicular visible light communication (V-VLC) aims to provide secure complementary vehicle to everything communications (V2X) to increase road safety and traffic efficiency. V-VLC provides directional transmissions, mainly enabling…

Signal Processing · Electrical Eng. & Systems 2021-11-23 Bugra Turan , Omer Narmanlioglu , Osman Nuri Koc , Emrah Kar , Sinem Coleri , Murat Uysal

The transmission matrix (TM) is a representation to describe the light scattering process through a scattering medium. The degree of control elements in TM is correlated with the capacity of evaluating enormous equations with tremendous…

Optics · Physics 2020-11-25 Shu Guo , Hao Zhang , Wenxue Li , Lin Pang

Multi-agent multi-lidar sensor fusion between connected vehicles for cooperative perception has recently been recognized as the best technique for minimizing the blind zone of individual vehicular perception systems and further enhancing…

Systems and Control · Electrical Eng. & Systems 2023-07-14 Lantao Li , Chen Sun

Given a set of images of a scene, the re-rendering of this scene from novel views and lighting conditions is an important and challenging problem in Computer Vision and Graphics. On the one hand, most existing works in Computer Vision…

Computer Vision and Pattern Recognition · Computer Science 2022-07-28 Linjie Lyu , Ayush Tewari , Thomas Leimkuehler , Marc Habermann , Christian Theobalt

Real time, high resolution 3D reconstruction of scenes hidden from the direct field of view is a challenging field of research with applications in real-life situations related e.g. to surveillance, self-driving cars and rescue missions.…

Optics · Physics 2019-07-24 G. Musarra , A. Lyons , E. Conca , Y. Altmann , F. Villa , F. Zappa , M. J. Padgett , D. Faccio

Non-line-of-sight reconstruction (NLoS) is a novel indirect imaging modality that aims to recover objects or scene parts outside the field of view from measurements of light that is indirectly scattered off a directly visible, diffuse wall.…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Javier Grau , Markus Plack , Patrick Haehn , Michael Weinmann , Matthias Hullin

The integration of Large Language Models (LLMs) with computer vision is profoundly transforming perception tasks like image segmentation. For intelligent transportation systems (ITS), where accurate scene understanding is critical for…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Sanjeda Akter , Ibne Farabi Shihab , Anuj Sharma

Non-line-of-sight (NLOS) imaging, recovering the hidden volume from indirect reflections, has attracted increasing attention due to its potential applications. Despite promising results, existing NLOS reconstruction approaches are…

Computer Vision and Pattern Recognition · Computer Science 2024-09-24 Shida Sun , Yue Li , Yueyi Zhang , Zhiwei Xiong

Traffic light perception is an essential component of the camera-based perception system for autonomous vehicles, enabling accurate detection and interpretation of traffic lights to ensure safe navigation through complex urban environments.…

Computer Vision and Pattern Recognition · Computer Science 2025-04-29 Rupert Polley , Nikolai Polley , Dominik Heid , Marc Heinrich , Sven Ochs , J. Marius Zöllner

This paper presents a novel optimization-based method for non-line-of-sight (NLOS) imaging that aims to reconstruct hidden scenes under general setups with significantly reduced reconstruction time. In NLOS imaging, the visible surfaces of…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Hyunbo Shim , In Cho , Daekyu Kwon , Seon Joo Kim

Pretrained models have demonstrated impressive success in many modalities such as language and vision. Recent works facilitate the pretraining paradigm in imaging research. Transients are a novel modality, which are captured for an object…

Computer Vision and Pattern Recognition · Computer Science 2025-06-11 Siyuan Shen , Ziheng Wang , Xingyue Peng , Suan Xia , Ruiqian Li , Shiying Li , Jingyi Yu

In this paper a novel NLOS (Non-Line-of-Sight) identification technique is proposed. In comparison to other methods described in the literature, it discerns a situation when the delayed direct path component is available from when it's…

Signal Processing · Electrical Eng. & Systems 2024-04-25 Marcin Kolakowski , Jozef Modelski

Existing studies on ultraviolet (UV) non-line-of-sight (NLoS) channel modeling primarily focus on scenarios without any obstacle, which makes them unsuitable for small transceiver elevation angles in most cases. To address this issue, a UV…

Signal Processing · Electrical Eng. & Systems 2025-06-27 Tianfeng Wu , Fang Yang , Tian Cao , Ling Cheng , Yupeng Chen , Jian Song , Julian Cheng , Zhu Han

Neuromorphic or event cameras, inspired by biological vision systems, capture changes in illumination with high temporal resolution and efficiency, producing streams of events rather than traditional images. In this paper, we explore the…

Computer Vision and Pattern Recognition · Computer Science 2025-03-17 Abbaas Alif Mohamed Nishar , Alireza Marefat , Ashwin Ashok

Time of flight based Non-line-of-sight (NLOS) imaging approaches require precise calibration of illumination and detector positions on the visible scene to produce reasonable results. If this calibration error is sufficiently high,…

Image and Video Processing · Electrical Eng. & Systems 2021-05-25 Subhash Chandra Sadhu , Abhishek Singh , Tomohiro Maeda , Tristan Swedish , Ryan Kim , Lagnojita Sinha , Ramesh Raskar

Images captured from low-light scenes often suffer from severe degradations, including low visibility, color cast and intensive noises, etc. These factors not only affect image qualities, but also degrade the performance of downstream…

Computer Vision and Pattern Recognition · Computer Science 2021-12-10 Risheng Liu , Long Ma , Tengyu Ma , Xin Fan , Zhongxuan Luo

High quality and high speed videography using Non-Line-of-Sight (NLOS) imaging benefit autonomous navigation, collision prevention, and post-disaster search and rescue tasks. Current solutions have to balance between the frame rate and…

Computer Vision and Pattern Recognition · Computer Science 2025-03-17 Ruiqian Li , Siyuan Shen , Suan Xia , Ziheng Wang , Xingyue Peng , Chengxuan Song , Yingsheng Zhu , Tao Wu , Shiying Li , Jingyi Yu

Recent developments in vision language models (VLM) have shown great potential for diverse applications related to image understanding. In this study, we have explored state-of-the-art VLM models for vision-based transportation engineering…

Computer Vision and Pattern Recognition · Computer Science 2024-09-05 Sanjita Prajapati , Tanu Singh , Chinmay Hegde , Pranamesh Chakraborty

The goal of non-line-of-sight (NLOS) imaging is to image objects occluded from the camera's field of view using multiply scattered light. Recent works have demonstrated the feasibility of two-bounce (2B) NLOS imaging by scanning a laser and…

Image and Video Processing · Electrical Eng. & Systems 2023-04-05 Siddharth Somasundaram , Akshat Dave , Connor Henley , Ashok Veeraraghavan , Ramesh Raskar

Despite the tremendous progresses in wavefront control through or inside complex scattering media, several limitations prevent reaching practical feasibility for nonlinear imaging in biological tissues. While the optimization of nonlinear…

Optics · Physics 2016-12-06 Hilton B. de Aguiar , Sylvain Gigan , Sophie Brasselet