Results 11 to 20 of about 173,981,779 (310)

Multidimensional time-of-flight spectroscopy [PDF]

open access: yesThe Journal of Chemical Physics, 2021
Experimental methods based on a wide range of physical principles are used to determine carrier mobilities for light-harvesting materials in photovoltaic cells. For example, in a time-of-flight experiment, a single laser pulse photoexcites the active layer of a device, and the transit time is determined by the arrival of carriers at an acceptor ...
Zhenyu Ouyang   +6 more
openaire   +2 more sources

Quantified, Interactive Simulation of AMCW ToF Camera Including Multipath Effects

open access: yesSensors, 2017
In the last decade, Time-of-Flight (ToF) range cameras have gained increasing popularity in robotics, automotive industry, and home entertainment.
David Bulczak   +2 more
doaj   +1 more source

Neutron Stress Measurement of W/Ti Composite in Cryogenic Temperatures Using Time-of-Flight Method

open access: yesQuantum Beam Science, 2023
In this study, the thermal stress alterations generated in a tungsten fiber reinforced titanium composite (W/Ti composite) were evaluated by the neutron stress measurement method at cryogenic temperatures.
Masayuki Nishida   +4 more
doaj   +1 more source

Direct Underwater Sound Velocity Measurement Based on the Acousto-Optic Self-Interference Effect between the Chirp Signal and the Optical Frequency Comb

open access: yesJournal of Marine Science and Engineering, 2022
Underwater sound speed plays a vital role in maritime safety. Based on the acousto-optic self-interference effect, we proposed a new method to measure underwater sound speed utilizing Raman–Nath diffraction, generated by the acousto-optic effect between ...
Zihui Yang   +5 more
doaj   +1 more source

Background Subtraction for Time of Flight Imaging

open access: yesJournal of Computer Science and Technology, 2017
A time of flight camera provides two types of images simultaneously, depth and intensity. In this paper a computational method for background subtraction, combining both images or fast sequences of images, is proposed.
Javier Giacomantone   +2 more
doaj   +1 more source

Using Virtual Scanning to Find Optimal Configuration of a 3D Scanner Turntable for Scanning of Mechanical Parts

open access: yesSensors, 2021
The article describes a method of simulated 3D scanning of triangle meshes based on ray casting which is used to find the optimal configuration of a real 3D scanner turntable.
Tomáš Kot   +5 more
doaj   +1 more source

Doppler time-of-flight imaging [PDF]

open access: yesACM Transactions on Graphics, 2015
Over the last few years, depth cameras have become increasingly popular for a range of applications, including human-computer interaction and gaming, augmented reality, machine vision, and medical imaging. Many of the commercially-available devices use the time-of-flight principle, where active illumination is temporally coded and analyzed in the ...
Felix Heide   +3 more
openaire   +4 more sources

A CMOS-Compatible Gate-Assisted Photonic Demodulator With Contrast Enhancement for Time-of-Flight Sensing

open access: yesIEEE Journal of the Electron Devices Society, 2023
This paper presents a CMOS-compatible gate-assisted photonic demodulator with contrast enhancement (GAPD-CE) techniques. To form an asymmetric field inside the substrate that will facilitate the transfer of photogenerated electrons, p-well and channel ...
Annan Xiong   +6 more
doaj   +1 more source

Characterization of modulated time-of-flight range image sensors [PDF]

open access: yes, 2009
A number of full field image sensors have been developed that are capable of simultaneously measuring intensity and distance (range) for every pixel in a given scene using an indirect time-of-flight measurement technique.
Payne, Andrew D.   +3 more
core   +1 more source

A Single-Shot Non-Line-of-Sight Range-Finder

open access: yesSensors, 2019
The ability to locate a target around a corner is crucial in situations where it is impractical or unsafe to physically move around the obstruction. However, current techniques are limited to long acquisition times as they rely on single-photon counting ...
James Brooks, Daniele Faccio
doaj   +1 more source

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