Sökning: "time-correlated single photon counting"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden time-correlated single photon counting.

1. 1. Deep Learning Semantic Segmentation of 3D Point Cloud Data from a Photon Counting LiDAR

   Master-uppsats, Linköpings universitet/Datorseende

   Författare :Caspian Süsskind; [2022]
   Nyckelord :Deep Learning; Machine Learning; Computer vision; Semantic Segmentation; Photon Counting LiDAR; LiDAR; Point Cloud; 3D Data; Point Cloud Segmentation; Point Classification; Convolutional Neural Network; CNN; SPVCNN; Djupinlärning; LiDAR; fotonräknande LiDAR; semantisk segmentering; datorseende; punktmoln; maskininlärning;

   Sammanfattning : Deep learning has shown to be successful on the task of semantic segmentation of three-dimensional (3D) point clouds, which has many interesting use cases in areas such as autonomous driving and defense applications. A common type of sensor used for collecting 3D point cloud data is Light Detection and Ranging (LiDAR) sensors. LÄS MER

3. 2. Optical characterisation of AAO/CsPbBr3 perovskite nanocomposites

   Master-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

   Författare :Klára Nováková; [2021]
   Nyckelord :perovskite; scintillator; optoelectronics; semiconductor; X-ray detection; Physics and Astronomy;

   Sammanfattning : Direct bandgap metal lead halide perovskites offer promising optoelectronic properties desirable in a wide range of applications including photodetection. However, the incomplete and poor understanding of the photophysical processes taking place in these materials, along with their poor stability, is the bottleneck for optimisation and further development of metal halide perovskite devices. LÄS MER

4. 3. Direct measurement of fluorescence lifetime using high speed data acquisition

   Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

   Författare :Mattias Olsson; [2018]
   Nyckelord :Boot-strapped waveform averaging; fluorescence lifetimes; TCSPC; repetitive signal; Technology and Engineering;

   Sammanfattning : Time-correlated single photon counting (TCSPC) is commonly used to measure the lifetime of fluorescence from dye molecules. In TCSPC, the sample is excited by a pulsed laser and the arrival time of each of the emitted photons at the detector relative to a trigger is recorded. LÄS MER

5. 4. Automatic Registration of Point Clouds Acquired by a Sweeping Single-Pixel TCSPC Lidar System

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen för visuell information och interaktion

   Författare :Mattias Mejerfalk; [2017]
   Nyckelord :point cloud; k-4pcs; tcspc;

   Sammanfattning : This project investigates an image registration process, involving a method known as K-4PCS. This registration process was applied to a set of 16 long range lidar scans, acquired at different positions by a single pixel TCSPC (Time Correlated Single-Photon Counting) lidar system. LÄS MER

7. 5. Compressed Sensing for 3D Laser Radar

   Master-uppsats, Linköpings universitet/Datorseende; Linköpings universitet/Tekniska högskolan

   Författare :Erik Fall; [2014]
   Nyckelord :compressed sensing; compressed sampling; TCSPC; TV minimization; l1 minimization; DMD;

   Sammanfattning : High resolution 3D images are of high interest in military operations, where data can be used to classify and identify targets. The Swedish defence research agency (FOI) is interested in the latest research and technologies in this area. A draw- back with normal 3D-laser systems are the lack of high resolution for long range measurements. LÄS MER