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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…

计算机视觉与模式识别 · 计算机科学 2024-08-06 Hyunbo Shim , In Cho , Daekyu Kwon , Seon Joo Kim

Imaging objects obscured by occluders is a significant challenge for many applications. A camera that could "see around corners" could help improve navigation and mapping capabilities of autonomous vehicles or make search and rescue…

计算机视觉与模式识别 · 计算机科学 2018-04-06 Felix Heide , Matthew O'Toole , Kai Zang , David Lindell , Steven Diamond , Gordon Wetzstein

Computational approach to imaging around the corner, or non-line-of-sight (NLOS) imaging, is becoming a reality thanks to major advances in imaging hardware and reconstruction algorithms. A recent development towards practical NLOS imaging,…

图像与视频处理 · 电气工程与系统科学 2022-08-09 Fangzhou Mu , Sicheng Mo , Jiayong Peng , Xiaochun Liu , Ji Hyun Nam , Siddeshwar Raghavan , Andreas Velten , Yin Li

Passive non-line-of-sight (NLOS) imaging has witnessed rapid development in recent years, due to its ability to image objects that are out of sight. The light transport condition plays an important role in this task since changing the…

计算机视觉与模式识别 · 计算机科学 2025-01-03 Jiarui Zhang , Ruixu Geng , Xiaolong Du , Yan Chen , Houqiang Li , Yang Hu

The global navigation satellite systems (GNSS) play a vital role in transport systems for accurate and consistent vehicle localization. However, GNSS observations can be distorted due to multipath effects and non-line-of-sight (NLOS)…

机器人学 · 计算机科学 2024-02-20 Haoming Zhang , Zhanxin Wang , Heike Vallery

Efficient exploration and mapping in unknown indoor environments is a fundamental challenge, with high stakes in time-critical settings. In current systems, robot perception remains confined to line-of-sight; occluded regions remain unknown…

机器人学 · 计算机科学 2025-10-14 Kush Garg , Akshat Dave

Conventional imaging requires a line of sight to create accurate visual representations of a scene. In certain circumstances, however, obtaining a suitable line of sight may be impractical, dangerous, or even impossible. Non-line-of-sight…

计算机视觉与模式识别 · 计算机科学 2026-01-21 Fadlullah Raji , John Murray-Bruce

Non-line-of-sight (NLOS) imaging enables the visualization of objects hidden from direct view, with applications in surveillance, remote sensing, and light detection and ranging. Here, we introduce a NLOS imaging technique termed…

图像与视频处理 · 电气工程与系统科学 2024-09-04 Pengming Song , Qianhao Zhao , Ruihai Wang , Ninghe Liu , Yingqi Qiang , Tianbo Wang , Xincheng Zhang , Yi Zhang , Guoan Zheng

Non-line-of-sight (NLOS) imaging aims at reconstructing targets obscured from the direct line of sight. Existing NLOS imaging algorithms require dense measurements at rectangular grid points in a large area of the relay surface, which…

图像与视频处理 · 电气工程与系统科学 2023-06-21 Xintong Liu , Jianyu Wang , Leping Xiao , Zuoqiang Shi , Xing Fu , Lingyun Qiu

We describe a method for 3D human pose estimation from transient images (i.e., a 3D spatio-temporal histogram of photons) acquired by an optical non-line-of-sight (NLOS) imaging system. Our method can perceive 3D human pose by `looking…

计算机视觉与模式识别 · 计算机科学 2020-04-02 Mariko Isogawa , Ye Yuan , Matthew O'Toole , Kris Kitani

The presence of Non-Line-of-Sight (NLoS) blind spots resulting from roadside parking in urban environments poses a significant challenge to road safety, particularly due to the sudden emergence of pedestrians. mmWave technology leverages…

计算机视觉与模式识别 · 计算机科学 2025-08-07 Hee-Yeun Kim , Byeonggyu Park , Byonghyok Choi , Hansang Cho , Byungkwan Kim , Soomok Lee , Mingu Jeon , Seung-Woo Seo , Seong-Woo Kim

A remote-sensing system that can determine the position of hidden objects has applications in many critical real-life scenarios, such as search and rescue missions and safe autonomous driving. Previous work has shown the ability to range…

计算机视觉与模式识别 · 计算机科学 2017-03-08 Susan Chan , Ryan E. Warburton , Genevieve Gariepy , Jonathan Leach , Daniele Faccio

In dynamic environments, the ability to detect and track moving objects in real-time is crucial for autonomous robots to navigate safely and effectively. Traditional methods for dynamic object detection rely on high accuracy odometry and…

机器人学 · 计算机科学 2024-07-08 Wenqiang Du , Giovanni Beltrame

Active imaging systems sample the Transient Light Transport Matrix (TLTM) for a scene by sequentially illuminating various positions in this scene using a controllable light source, and then measuring the resulting spatiotemporal light…

Moving object detection is a critical task for autonomous vehicles. As dynamic objects represent higher collision risk than static ones, our own ego-trajectories have to be planned attending to the future states of the moving elements of…

计算机视觉与模式识别 · 计算机科学 2019-11-22 Hazem Rashed , Mohamed Ramzy , Victor Vaquero , Ahmad El Sallab , Ganesh Sistu , Senthil Yogamani

We propose a real-time dynamic LiDAR odometry pipeline for mobile robots in Urban Search and Rescue (USAR) scenarios. Existing approaches to dynamic object detection often rely on pretrained learned networks or computationally expensive…

机器人学 · 计算机科学 2024-11-28 Jonathan Lichtenfeld , Kevin Daun , Oskar von Stryk

Non-line-of-sight (NLOS) imaging techniques use light that diffusely reflects off of visible surfaces (e.g., walls) to see around corners. One approach involves using pulsed lasers and ultrafast sensors to measure the travel time of…

计算机视觉与模式识别 · 计算机科学 2020-08-07 Mariko Isogawa , Dorian Chan , Ye Yuan , Kris Kitani , Matthew O'Toole

Non-line-of-sight (NLOS) imaging enables monitoring around corners and is promising for diverse applications. The resolution of transient NLOS imaging is limited to a centimeter scale, mainly by the temporal resolution of the detectors.…

Non-line-of-sight (NLOS) imaging seeks to reconstruct hidden objects by analyzing reflections from intermediary surfaces. Existing methods typically model both the measurement data and the hidden scene in three dimensions, overlooking the…

计算机视觉与模式识别 · 计算机科学 2025-08-05 Yijun Wei , Jianyu Wang , Leping Xiao , Zuoqiang Shi , Xing Fu , Lingyun Qiu

Time-of-Flight non-line-of-sight (ToF NLOS) imaging techniques provide state-of-the-art reconstructions of scenes hidden around corners by inverting the optical path of indirect photons scattered by visible surfaces and measured by…

计算机视觉与模式识别 · 计算机科学 2026-03-11 Julio Marco , Adrian Jarabo , Ji Hyun Nam , Alberto Tosi , Diego Gutierrez , Andreas Velten