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Crystal arrays made of LSO and LuAP crystals 2x2x10 mm pixels were manufactured for evaluation of detector with depth-of-interaction (DOI) determination capability intended for small animal positron emission tomograph. Position-sensitive…

仪器与探测器 · 物理学 2007-05-23 A. Fedorov , A. Annenkov , A. Kholmetsky , M. Korzhik , P. Lecoq , A. Lobko , O. Missevitch , A. Tkatchov

Loop closure detection is an essential and challenging problem in simultaneous localization and mapping (SLAM). It is often tackled with light detection and ranging (LiDAR) sensor due to its view-point and illumination invariant properties.…

机器人学 · 计算机科学 2020-10-13 Han Wang , Chen Wang , Lihua Xie

Depth estimation is a cornerstone of a vast number of applications requiring 3D assessment of the environment, such as robotics, augmented reality, and autonomous driving to name a few. One prominent technique for depth estimation is stereo…

计算机视觉与模式识别 · 计算机科学 2021-12-16 Amit Bracha , Noam Rotstein , David Bensaïd , Ron Slossberg , Ron Kimmel

This paper presents the first photo-realistic LiDAR-Inertial-Camera Gaussian Splatting SLAM system that simultaneously addresses visual quality, geometric accuracy, and real-time performance. The proposed method performs robust and accurate…

机器人学 · 计算机科学 2025-07-10 Xiaolei Lang , Jiajun Lv , Kai Tang , Laijian Li , Jianxin Huang , Lina Liu , Yong Liu , Xingxing Zuo

We present extensive simulation studies on the performance of algorithms for the Compton sequence reconstruction used for the development of a portable spectroscopic instrument (COCAE), with the capability to localize and identify…

The performance of a double sided silicon strip detector (DSSSD), used for position and energy detection of heavy ions, is reported. The analysis shows that the incomplete charge collection (ICC) and charge sharing (CS) effects of the DSSSD…

仪器与探测器 · 物理学 2015-06-16 J L Han , J B Ma , X G Cao , Q Wang , J S Wang , Y Y Yang , P Ma , M R Huang , S L Jin , X J Rong , Z Bai , F Fu , Q Hu , R F Chen , S W Xu , J B Chen , L Jin , Y Li , M H Zhao , H S Xu

Radiation hard n-Fz Double Sided Silicon microstrip Detectors are used at the Silicon Tracker for the detection of two-dimensional position and energy measurement of the incident protons in the R3B experiment at FAIR, Darmstadt, Germany.…

仪器与探测器 · 物理学 2025-03-20 Puspita Chatterjee , Nitu Saini , Ajay Kumar Srivastava

We propose a new acquisition geometry for electron density reconstruction in three dimensional X-ray Compton imaging using a monochromatic source. This leads us to a new three dimensional inverse problem where we aim to reconstruct a real…

泛函分析 · 数学 2018-07-04 James Webber , William Lionheart

With the developments of dual-lens camera modules,depth information representing the third dimension of thecaptured scenes becomes available for smartphones. It isestimated by stereo matching algorithms, taking as input thetwo views…

计算机视觉与模式识别 · 计算机科学 2018-09-27 Ruichao Xiao , Wenxiu Sun , Jiahao Pang , Qiong Yan , Jimmy Ren

We introduce a compact, two-camera laparoscope that combines active stereo depth estimation and speckle-illumination spatial frequency domain imaging (si-SFDI) to map profile-corrected, pixel-level absorption and reduced scattering optical…

光学 · 物理学 2025-01-27 Anthony A. Song , Mason T. Chen , Taylor L. Bobrow , Nicholas J. Durr

In this paper we study a realistic setup for phase retrieval, where the signal of interest is modulated or masked and then for each modulation or mask a diffraction pattern is collected, producing a coded diffraction pattern (CDP) [CLM13].…

信息论 · 计算机科学 2014-03-25 Youssef Mroueh

We present results on the reconstructed image resolution of a position sensitive radiation instrument (COCAE) based on extensive simulation studies. The reconstructed image resolution has been investigated in a wide range of incident photon…

仪器与探测器 · 物理学 2011-11-29 K. Zachariadou , K. Karafasoulis , I. Kaissas , S. Seferlis , C. Lambropoulos , D. Loukas , C. Potiriadis

Single-Photon Light Detection and Ranging (SP-LiDAR is emerging as a leading technology for long-range, high-precision 3D vision tasks. In SP-LiDAR, timestamps encode two complementary pieces of information: pulse travel time (depth) and…

计算机视觉与模式识别 · 计算机科学 2025-05-20 Hashan K. Weerasooriya , Prateek Chennuri , Weijian Zhang , Istvan Gyongy , Stanley H. Chan

In this work, we have developed and characterized a position-sensitive CLYC detector that acts as the neutron imaging layer and $\gamma$-ray Compton scatterer of the novel dual \g-ray and neutron imaging system GN-Vision, which aims at…

Low-energy background through Compton scattering from the ambient $\gamma$ rays can be contaminated in direct dark matter search experiments. In this paper, we report comparable measurements on low-energy spectra via Compton scattering from…

仪器与探测器 · 物理学 2023-04-26 J. W. Hu , L. T. Yang , Q. Yue , X. P. Geng , H. B. Li , Y. F. Liang , S. T. Lin , S. K. Liu , H. Ma , L. Wang , H. T. Wong , B. T. Zhang

We achieved three-dimensional (3D) computational ghost imaging with multiple photoresistors serving as single-pixel detectors using semi-calibrated lighting approach. We performed imaging in the spatial frequency domain by having each…

光学 · 物理学 2021-12-30 Ritz Ann Aguilar , Nathaniel Hermosa , Maricor Soriano

Here we propose a waveguide-integrated germanium plasmonic photodetector that is based on a long-range dielectric-loaded surface plasmon polariton waveguide configuration. As this configuration ensures a long propagation distance, i.e.,…

应用物理 · 物理学 2019-09-04 Jacek Gosciniak , Mahmoud Rasras

In coded aperture snapshot spectral imaging (CASSI), the captured measurement entangles spatial and spectral information, posing a severely ill-posed inverse problem for hyperspectral images (HSIs) reconstruction. Moreover, the captured…

计算机视觉与模式识别 · 计算机科学 2026-02-09 Xiaodong Wang , Zijun He , Ping Wang , Lishun Wang , Yanan Hu , Xin Yuan

This work aims to demonstrate that two arrays of Lumped Element Kinetic Inductance Detectors (LEKIDs), when employed in filled array configuration and separated by an external linear polarizer oriented at 45 degrees, can achieve the…

Good geometrical calibration is essential in the use of high resolution detectors. The individual sensors in the detector have to be calibrated with an accuracy better than the intrinsic resolution, which typically is of the order of 10 um.…

数据分析、统计与概率 · 物理学 2009-09-29 V. Karimaki , A. Heikkinen , T. Lampen , T. Linden