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Computational ghost imaging is a promising technique for single-pixel imaging because it is robust to disturbance and can be operated over broad wavelength bands, unlike common cameras. However, one disadvantage of this method is that it…

图像与视频处理 · 电气工程与系统科学 2018-10-16 Ikuo Hoshi , Tomoyoshi Shimobaba , Takashi Kakue , Tomoyoshi Ito

Observing and studying the evolution of rare non-repetitive natural phenomena such as optical rogue waves or dynamic chemical processes in living cells is a crucial necessity for developing science and technologies relating to them. One…

光学 · 物理学 2020-04-22 Farshid Shateri , Shiva Behzadfar , Zahra Kavehvash

Since its discovery, the "ghost" diffraction phenomenon has emerged as a non-conventional technique for optical imaging with very promising advantages. However, extracting intensity and phase information of a structured and realistic object…

We have designed a single-pixel camera with imaging around corners based on computational ghost imaging. It can obtain the image of an object when the camera cannot look at the object directly. Our imaging system explores the fact that a…

计算机视觉与模式识别 · 计算机科学 2017-10-11 Bin Bai , Jianbin Liu , Yu Zhou , Songlin Zhang , Yuchen He , Zhuo Xu

Recently three-dimensional (3D) imaging achieves tremendous success in consumer and industrial manufacturing. However, current 3D imaging methods rarely observe dynamical events happening in a short time interval due to the imaging speed…

光学 · 物理学 2019-01-15 Jiajie Teng , Qiang Guo , Minghua Chen , Sigang Yang , Hongwei Chen

The detection and tracking of small targets in passive optical remote sensing (PORS) has broad applications. However, most of the previously proposed methods seldom utilize the abundant temporal features formed by target motion, resulting…

计算机视觉与模式识别 · 计算机科学 2024-05-16 Weihua Gao , Wenlong Niu , Wenlong Lu , Pengcheng Wang , Zhaoyuan Qi , Xiaodong Peng , Zhen Yang

We present a time-over-threshold readout technique to count the number of activated pixels from an array of superconducting nanowire single photon detectors (SNSPDs). This technique maintains the intrinsic timing jitter of the individual…

仪器与探测器 · 物理学 2020-03-18 Johannes Tiedau , Timon Schapeler , Vikas Anant , Helmut Fedder , Christine Silberhorn , Tim J. Bartley

In this Letter, we report a demonstration of ion and electron ghost imaging. Two beams of correlated ions and electrons are produced by a photoionization process and accelerated into opposite directions. Using a single time and position…

仪器与探测器 · 物理学 2020-03-05 A. Trimeche , C. Lopez , D. Comparat , Y. J. Picard

Time-resolved single photon imaging is a promising imaging modality characterized by the unique capability of timestamping the arrivals of single photons. Single-Photon Avalanche Diodes (SPADs) are the leading technology for implementing…

计算机视觉与模式识别 · 计算机科学 2024-10-23 Aleksi Suonsivu , Lauri Salmela , Edoardo Peretti , Leevi Uosukainen , Radu Ciprian Bilcu , Giacomo Boracchi

The use of x-ray imaging in medicine and other research is well known. Generally, the image quality is proportional to the total flux, but high photon energy could severely damage the specimen, so how to decrease the radiation dose while…

医学物理 · 物理学 2017-09-05 Ai-Xin Zhang , Yu-Hang He , Ling-An Wu , Li-Ming Chen , Bing-Bing Wang

Low-light-level imaging techniques have application in many diverse fields, ranging from biological sciences to security. We demonstrate a single-photon imaging system based on a time-gated inten- sified CCD (ICCD) camera in which the image…

Recently, there has been increased attention towards 3D imaging using single-pixel single-photon detection (also known as temporal data) due to its potential advantages in terms of cost and power efficiency. However, to eliminate the…

计算机视觉与模式识别 · 计算机科学 2024-02-28 Tingqin Lai , Xiaolin Liang , Yi Zhu , Xinyi Wu , Lianye Liao , Xuelin Yuan , Ping Su , Shihai Sun

In-vacuum active pixel detectors enable high sensitivity, highly parallel time- and space-resolved detection of ions from complex surfaces. For the first time, a Timepix detector assembly was combined with a Secondary Ion Mass Spectrometer…

仪器与探测器 · 物理学 2013-09-05 András Kiss , Julia H. Jungmann , Donald F. Smith , Ron M. A. Heeren

For active optical imaging, the use of single-photon detectors can greatly improve the detection sensitivity of the system. However, the traditional maximum-likelihood based imaging method needs a long acquisition time to capture clear…

光学 · 物理学 2017-03-06 Weiji He , Zhenchao Feng , Jie Lin , Shanshan Shen , Qian Chen , Guohua Gu , Beibei Zhou , Ping Zhang

We present an implementation of the single-pixel imaging approach into a terahertz (THz) time-domain spectroscopy (TDS) system. We demonstrate the indirect coherent reconstruction of THz temporal waveforms at each spatial position of an…

图像与视频处理 · 电气工程与系统科学 2020-02-19 Luca Zanotto , Riccardo Piccoli , Junliang Dong , Diego Caraffini , Roberto Morandotti , Luca Razzari

A simple scheme for all-optical time interpolation using spectral interferometry is put forward that is in principle capable of single-shot measurements. In this method, the arrival time of optical timing pulses is encoded into the spectrum…

光学 · 物理学 2022-04-21 Thomas Fordell

We demonstrate photon-counting single-pixel imaging in the ultraviolet region. Toward this target, we develop a high-performance compact single-photon detector based on a 4H-SiC single-photon avalanche diode (SPAD), where a tailored readout…

光学 · 物理学 2023-07-17 Jun-Tian Ye , Chao Yu , Wenwen Li , Zheng-Ping Li , Hai Lu , Rong Zhang , Jun Zhang , Feihu Xu , Jian-Wei Pan

Computational ghost imaging or single-pixel imaging enables the image formation of an unknown scene using a lens-free photodetector. In this Letter, we present a computational panoramic ghost imaging system that can achieve the full-color…

光学 · 物理学 2021-08-24 Zhiyuan Ye , Hai-Bo Wang , Jun Xiong , Kaige Wang

Image sensors are the backbone of many imaging technologies of great importance to modern sciences, being particularly relevant in biomedicine. An ideal image sensor should be usable through all the electromagnetic spectrum (large…

医学物理 · 物理学 2022-03-16 Juan Aguirre

Based on image encoding in a serial-temporal format, optical time-stretch imaging entails a stringent requirement of state-of-the- art fast data acquisition unit in order to preserve high image resolution at an ultrahigh frame rate ---…