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Photon counting 3D imaging allows to obtain 3D images with single-photon sensitivity and sub-ns temporal resolution. However, it is challenging to scale to high spatial resolution. In this work, we demonstrate a photon counting 3D imaging…

计算机视觉与模式识别 · 计算机科学 2017-09-19 Huidong Dai , Weiji He , Guohua Gu , Ling Ye , Tianyi Mao , Qian Chen

High-speed machine vision is increasing its importance in both scientific and technological applications. Neuro-inspired photonic computing is a promising approach to speed-up machine vision processing with ultralow latency. However, the…

Over the past few years, silicon photonics-based computing has emerged as a promising alternative to CMOS-based computing for Deep Neural Networks (DNN). Unfortunately, the non-linear operations and the high-precision requirements of DNNs…

Flying Triangulation sensors enable a free-hand and motion-robust 3D data acquisition of complex shaped objects. The measurement principle is based on a multi-line light-sectioning approach and uses sophisticated algorithms for real-time…

计算机视觉与模式识别 · 计算机科学 2013-05-20 Florian Willomitzer , Svenja Ettl , Christian Faber , Gerd Häusler

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

In the last two decades, many quantum optics experiments have demonstrated small-scale quantum information processing applications with several photons. Beyond such proof-of-principle demonstrations, efficient preparation of large, but…

量子物理 · 物理学 2017-09-08 Fumihiro Kaneda , Feihu Xu , Joseph Chapman , Paul G. Kwiat

X-ray is a ubiquitous imaging modality in clinical diagnostics and industrial inspections, thanks to its high penetration power. Conventional x-ray imaging system, equipped with energy-integrating detectors, collects approximately 1000 to…

医学物理 · 物理学 2020-08-24 Zheyuan Zhu , Shuo Pang

Capturing ultrafast transient phenomena conventionally requires streak cameras or computational imaging based on compressed sensing, which lead to complex and costly systems. In this Letter, we demonstrate, to the best of our knowledge, the…

光学 · 物理学 2026-05-01 Dilem Eşlik , Bahadır Utku Kesgin , Uğur Teğin

Cameras for imaging in short and mid-wave infrared spectra are significantly more expensive than their counterparts in visible imaging. As a result, high-resolution imaging in those spectrum remains beyond the reach of most consumers. Over…

计算机视觉与模式识别 · 计算机科学 2015-04-17 Huaijin Chen , M. Salman Asif , Aswin C. Sankaranarayanan , Ashok Veeraraghavan

A single-photon CMOS image sensor design based on pinned photodiode (PPD) with multiple charge transfers and sampling is described. In the proposed pixel architecture, the photogenerated signal is sampled non-destructively multiple times…

Single-photon detection and photon counting play a central role in a large number of quantum communication and computation protocols. While the efficiency of state-of-the-art photo-detectors is well below the desired limits, quantum state…

量子物理 · 物理学 2009-11-07 A. Imamoglu

3D flash LIDAR is an alternative to the traditional scanning LIDAR systems, promising precise depth imaging in a compact form factor, and free of moving parts, for applications such as self-driving cars, robotics and augmented reality (AR).…

3D single-photon LiDAR imaging has an important role in many applications. However, full deployment of this modality will require the analysis of low signal to noise ratio target returns and a very high volume of data. This is particularly…

图像与视频处理 · 电气工程与系统科学 2023-07-19 Mohamed Amir Alaa Belmekki , Jonathan Leach , Rachael Tobin , Gerald S. Buller , Stephen Mclaughlin , Abderrahim Halimi

Single-photon avalanche diodes (SPADs) are widely used today in time-resolved imaging applications. However, traditional architectures rely on time-to-digital converters (TDCs) and histogram-based processing, leading to significant data…

图像与视频处理 · 电气工程与系统科学 2025-11-10 Yang Lin , Claudio Bruschini , Edoardo Charbon

Diffusion coefficient measurements are important for many biological and material investigations, such as particle dynamics, kinetics, and size determinations. Amongst current measurement methods, single particle tracking (SPT) offers the…

生物大分子 · 定量生物学 2011-07-12 Shannon Kian Zareh , Michael C. DeSantis , Jonathan Kessler , Je-Luen Li , Y. M. Wang

High-precision time transfer over a long haul of fiber plays a significant role in many fields. The core method, namely cascading relay nodes for the compensation of signal attenuation and dispersion, is however insufficient to deal with…

光学 · 物理学 2024-12-25 Yufei Zhang , Ziyang Chen , Bin Luo , Hong Guo

Single-photon avalanche diodes (SPADs) are an emerging technology with a unique capability of capturing individual photons with high timing precision. SPADs are being used in several active imaging systems (e.g., fluorescence lifetime…

图像与视频处理 · 电气工程与系统科学 2019-04-25 Atul Ingle , Andreas Velten , Mohit Gupta

This paper proposes a novel system to estimate and track the 3D poses of multiple persons in calibrated RGB-Depth camera networks. The multi-view 3D pose of each person is computed by a central node which receives the single-view outcomes…

计算机视觉与模式识别 · 计算机科学 2017-10-18 Marco Carraro , Matteo Munaro , Jeff Burke , Emanuele Menegatti

Single-pixel imaging (SPI) is very popular in subsampling applications, but the random measurement matrices it typically uses will lead to measurement blindness as well as difficulties in calculation and storage, and will also limit the…

图像与视频处理 · 电气工程与系统科学 2022-03-10 Wen-Kai Yu , Chong Cao , Ying Yang , Ning Wei , Shuo-Fei Wang , Chen-Xi Zhu

Traditional paradigms for imaging rely on the use of a spatial structure, either in the detector (pixels arrays) or in the illumination (patterned light). Removal of the spatial structure in the detector or illumination, i.e., imaging with…