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Passive Time-of-Flight (ToF) imaging can be enabled by optical wireless communication (OWC). The lighting infrastructure is the backbone of emerging light-based wireless communication. To this end, communication sources are used as…

信号处理 · 电气工程与系统科学 2023-07-18 Faisal Ahmed , Miguel Heredia Conde , Paula López Martínez

Non-line-of-sight (NLoS) imaging is an important challenge in many fields ranging from autonomous vehicles and smart cities to defense applications. Several recent works in optics and acoustics tackle the challenge of imaging targets hidden…

应用物理 · 物理学 2023-05-12 Jeremy Boger-Lombard , Yevgeny Slobodkin , Ori Katz

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

In recent years, computational Time-of-Flight (ToF) imaging has emerged as an exciting and a novel imaging modality that offers new and powerful interpretations of natural scenes, with applications extending to 3D, light-in-flight, and…

图像与视频处理 · 电气工程与系统科学 2024-11-05 Ruiming Guo , Ayush Bhandari

Time-of-flight (TOF) cameras are sensors that can measure the depths of scene-points, by illuminating the scene with a controlled laser or LED source, and then analyzing the reflected light. In this paper, we will first describe the…

计算机视觉与模式识别 · 计算机科学 2020-12-15 Radu Horaud , Miles Hansard , Georgios Evangelidis , Clement Menier

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…

图像与视频处理 · 电气工程与系统科学 2023-04-05 Siddharth Somasundaram , Akshat Dave , Connor Henley , Ashok Veeraraghavan , Ramesh Raskar

Time-of-flight (ToF) sensors provide an imaging modality fueling diverse applications, including LiDAR in autonomous driving, robotics, and augmented reality. Conventional ToF imaging methods estimate the depth by sending pulses of light…

计算机视觉与模式识别 · 计算机科学 2021-12-20 Seung-Hwan Baek , Felix Heide

Time-of-flight (ToF) 3D imaging has a wealth of applications, from industrial inspection to movement tracking and gesture recognition. Depth information is recovered by measuring the round-trip flight time of laser pulses, which usually…

A variety of techniques such as light field, structured illumination, and time-of-flight (TOF) are commonly used for depth acquisition in consumer imaging, robotics and many other applications. Unfortunately, each technique suffers from its…

计算机视觉与模式识别 · 计算机科学 2015-09-03 Suren Jayasuriya , Adithya Pediredla , Sriram Sivaramakrishnan , Alyosha Molnar , Ashok Veeraraghavan

The acquisition of objects outside the Line-of-Sight of cameras is a very intriguing but also extremely challenging research topic. Recent works showed the feasibility of this idea exploiting transient imaging data produced by custom direct…

计算机视觉与模式识别 · 计算机科学 2024-09-23 Matteo Caligiuri , Adriano Simonetto , Pietro Zanuttigh

Time-of-flight (ToF) cameras calculate depth maps by reconstructing phase shifts of amplitude-modulated signals. For broad illumination or transparent objects, reflections from multiple scene points can illuminate a given pixel, giving rise…

计算机视觉与模式识别 · 计算机科学 2014-06-20 Ayush Bhandari , Achuta Kadambi , Refael Whyte , Christopher Barsi , Micha Feigin , Adrian Dorrington , Ramesh Raskar

In turbid media, scattering of light scrambles information of the incident beam and represents an obstacle to optical imaging. Noninvasive imaging through opaque layers is challenging for dynamic and wide-field objects due to unreliable…

光学 · 物理学 2018-10-17 Yuan Yuan , Hui Chen

We introduce Mask-ToF, a method to reduce flying pixels (FP) in time-of-flight (ToF) depth captures. FPs are pervasive artifacts which occur around depth edges, where light paths from both an object and its background are integrated over…

图像与视频处理 · 电气工程与系统科学 2021-04-01 Ilya Chugunov , Seung-Hwan Baek , Qiang Fu , Wolfgang Heidrich , Felix Heide

Long-distance depth imaging holds great promise for applications such as autonomous driving and robotics. Direct time-of-flight (dToF) imaging offers high-precision, long-distance depth sensing, yet demands ultra-short pulse light sources…

计算机视觉与模式识别 · 计算机科学 2025-05-29 Manchao Bao , Shengjiang Fang , Tao Yue , Xuemei Hu

A time-of-flight (ToF) imaging system is proposed and its working principle demonstrated. To realize this system, a new device, a free-space optical mixer, is designed and fabricated. A scene is illuminated (flashed) with a megahertz level…

Indirect Time-of-Flight (iToF) cameras are a widespread type of 3D sensor, which perform multiple captures to obtain depth values of the captured scene. While recent approaches to correct iToF depths achieve high performance when removing…

计算机视觉与模式识别 · 计算机科学 2022-10-20 Michael Schelling , Pedro Hermosilla , Timo Ropinski

Time-of-flight (TOF) cameras are based on a new technology that delivers distance maps by the use of a modulated light source. In this paper we first describe a set of experiments that we performed with TOF cameras. We then propose a noise…

数据分析、统计与概率 · 物理学 2007-05-23 Dragos Falie , Vasile Buzuloiu

The observation of objects located in inaccessible regions is a recurring challenge in a wide variety of important applications. Recent work has shown that indirect diffuse light reflections can be used to reconstruct objects and…

计算机视觉与模式识别 · 计算机科学 2017-05-09 Jonathan Klein , Christoph Peters , Jaime Martín , Martin Laurenzis , Matthias B. Hullin

Conventional sensor systems record information about directly visible objects, whereas occluded scene components are considered lost in the measurement process. Non-line-of-sight (NLOS) methods try to recover such hidden objects from their…

Time-of-Flight (ToF) cameras require active illumination to obtain depth information thus the power of illumination directly affects the performance of ToF cameras. Traditional ToF imaging algorithms is very sensitive to illumination and…

计算机视觉与模式识别 · 计算机科学 2018-12-20 Yan Chen , Jimmy Ren , Xuanye Cheng , Keyuan Qian , Jinwei Gu
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