. 24/7 Space News .
STELLAR CHEMISTRY
Researchers realize non-line-of-sight imaging with picosecond temporal resolution
by Staff Writers
Hefei, Israel (SPX) Aug 17, 2021

Comparison of different system working on reconstruction of letters

Usually, the traditional optical imaging strategies can only image the target objects within the field of camera. However, through the non-line-of-sight (NLOS) which can record the time-of-flight information about single-photon, the target imaging outside of the camera view can also be captured successfully with the assistance of related computational imaging algorithms.

A research team led by Prof. PAN Jianwei from University of Science and Technology of China (USTC) of the Chinese Academy of Sciences, in cooperation with researchers from the Jinan Institute of Quantum Technology, realized the millimeter-level three-dimension (3D) non-line-of-sight imaging by constructing up-conversion single-photon detector, paving the road for the multiple applications of this novel method.

Since the time of flight information of photons contains the relative spatial position information between objects, its accuracy of time will directly affect the accuracy of 3D reconstruction of objects. However, the accuracy of traditional NLOS imaging strategy, confined by the time resolution capability of single-photon detectors, is limited on centimeter level.

In this study, the researchers constructed an up-conversion single-photon detector operating around the near-infrared wavelength to realize high-resolution NLOS imaging.

The excellent resolution of ~1.4 picoseconds and low noise counts rate of 5 cycles per second were achieved through long-wavelength-pumping and time-gating strategies.

Additionally, the team accomplished the high-precision 3D reconstruction of the target object outside the view, with a horizontal spatial resolution of two mm and a vertical spatial resolution of 0.18 mm.

These results open the way for high resolution NLOS imaging techniques for related applications.

Relevant results have been published in the journal Physical Review Letters.

Research Report: "Non-Line-of-Sight Imaging with Picosecond Temporal Resolution"


Related Links
University of Science and Technology of China,
Stellar Chemistry, The Universe And All Within It


Thanks for being there;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.
SpaceDaily Monthly Supporter
$5+ Billed Monthly


paypal only
SpaceDaily Contributor
$5 Billed Once


credit card or paypal


STELLAR CHEMISTRY
Light-bending technique for wavelength conversion may boost imaging technologies
Washington DC (UPI) Jul 30, 2021
Electrical engineers at UCLA have used a new light-bending technique to convert the wavelengths of light, a breakthrough that could boost the performance of many optical technologies. Lightwave frequency conversion is key for a variety of imaging and sensing technologies, but the process is often inefficient, adding bulk and complexity to a variety of devices. The new wavelength conversion technique - described Friday in the journal Nature Communications - relies on semiconductor surfa ... read more

Comment using your Disqus, Facebook, Google or Twitter login.



Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

STELLAR CHEMISTRY
Boeing delays key uncrewed test flight to ISS

Virgin Galactic restarting space tickets from $450,000

Boeing Starliner launch delayed indefinitely

Space station mishap caused orbiting lab to rotate 1 1/2 times, NASA says

STELLAR CHEMISTRY
Hermeus fully-funded to flight with US Air Force Partnership

SpaceX briefly puts together largest rocket in history at Texas base

NASA continues RS-25 testing with 6th installment at Stennis

Finding the cause of a fatal problem in rocket engine combustors

STELLAR CHEMISTRY
Aviation Week awards NASA's Ingenuity Mars Helicopter with laureate

NASA begins recruitment for long-duration Mars Mission Analog Study

China's Mars rover travels over 800 meters on red planet

Mars Perseverance team assessing first sampling attempt

STELLAR CHEMISTRY
Tianhe astronauts use free time to watch ping-pong and exercise

Shanxi company helps astronauts keep fit in space

China's space propaganda blitz endures at slick new planetarium

How Chinese astronauts stay healthy in space

STELLAR CHEMISTRY
BlackSky to expand constellation with three back-to-back missions

Skykraft to begin launch of space-based air traffic management constellation

Long March rocket lifts off with communications satellite

Next batch of OneWeb satellites set to launch August 20

STELLAR CHEMISTRY
Purdue-designed heat transfer experiment arrives at International Space Station

Experiment bound for Space Station turns down the heat

DARPA selects research teams to enable quantum shift in spectrum sensing

End tax breaks for gaming firms, says Chinese state media

STELLAR CHEMISTRY
New ESO observations show rocky exoplanet has just half the mass of Venus

Small force, big effect: How the planets could influence the sun

Astronomers find evidence of possible life-sustaining planet

Astronomers show how planets form in binary systems without getting crushed

STELLAR CHEMISTRY
A few steps closer to Europa: spacecraft hardware makes headway

Juno joins Japan's Hisaki satellite and Keck Observatory to solve "energy crisis" on Jupiter

Hubble finds first evidence of water vapor on Ganymede

NASA Awards Launch Services Contract for the Europa Clipper Mission









The content herein, unless otherwise known to be public domain, are Copyright 1995-2024 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. General Data Protection Regulation (GDPR) Statement Our advertisers use various cookies and the like to deliver the best ad banner available at one time. All network advertising suppliers have GDPR policies (Legitimate Interest) that conform with EU regulations for data collection. By using our websites you consent to cookie based advertising. If you do not agree with this then you must stop using the websites from May 25, 2018. Privacy Statement. Additional information can be found here at About Us.