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Dissertations / Theses on the topic 'Scanner mobile'

Author: Grafiati

Published: 1 June 2024

Last updated: 19 July 2025

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1

Nalani, Hetti Arachchige. "Automatic Reconstruction of Urban Objects from Mobile Laser Scanner Data." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-159872.

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Aktuelle 3D-Stadtmodelle werden immer wichtiger in verschiedenen städtischen Anwendungsbereichen. Im Moment dienen sie als Grundlage bei der Stadtplanung, virtuellem Tourismus und Navigationssystemen. Mittlerweile ist der Bedarf an 3D-Gebäudemodellen dramatisch gestiegen. Der Grund dafür sind hauptsächlich Navigationssysteme und Onlinedienste wie Google Earth. Die Mehrheit der Untersuchungen zur Rekonstruktion von Gebäudemodellen von Luftaufnahmen konzentriert sich ausschließlich auf Dachmodellierung. Jedoch treiben Anwendungen wie Virtuelle Realität und Navigationssysteme die Nachfrage nach d

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2

Yasser, Almodhi. "Classifying Receipts and Invoices in Visma Mobile Scanner." Thesis, Linnéuniversitetet, Institutionen för datavetenskap (DV), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-49671.

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This paper presents a study on classifying receipts and invoices using Machine Learning. Furthermore, Naïve Bayes Algorithm and the advantages of using it will be discussed. With information gathered from theory and previous research, I will show how to classify images into a receipt or an invoice. Also, it includes pre-processing images using a variety of pre-processing methods and text extraction using Optical Character Recognition (OCR). Moreover, the necessity of pre-processing images to reach a higher accuracy will be discussed. A result shows a comparison between Tesseract OCR engine an

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3

Colaço, André Freitas. "Mobile terrestrial laser scanner for site-specific management in orange crop." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/11/11152/tde-23012017-151317/.

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Sensors based on LiDAR (Light Detection and Ranging) technology have the potential to provide accurate 3D models of the trees retrieving information such as canopy volume and height. This information can be used for diagnostics and prescriptions of fertilizers and plant protection products on a site-specific basis. This research aimed to investigate the use of LiDAR sensors in orange crops. Orange is one of the most important tree crop in Brazil. So far, research have developed and tested LiDAR based systems for several tree crops. However, usually individual trees or small field plots have be

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4

Halim, Humam. "Evaluation of a Near Field Scanner For Active Measurements of Mobile Phones." Thesis, University of Gävle, Department of Technology and Built Environment, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-3469.

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<p> The radio performance measurements of terminal antennas require expensive investments and they are often performed in anechoic chambers. Now a days measurement techniques using wheeler cap, reverberation chamber, etc have become popular. But these methods are used for measurements either during the design or production or in-network testing phases but not for all. Hence EMSCAN, a Canadian company, has come up with a device called Lab express near field scanner to counter this problem.</p><p> </p><p>In this thesis an attempt is made to study the EMSCAN near field scanner by looking into

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5

Caliri, Claudia. "A mobile xrf scanner for a real-time elemental imaging of painted artworks." Doctoral thesis, Università di Catania, 2017. http://hdl.handle.net/10761/3771.

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Painted artworks are complex multi-layered materials studied over the time with several sophisticated imaging techniques. Scanning MA-XRF technique provides information on pigment materials and their distribution over the painted surface in non-invasive manner. Further, it provides information on conservation state of artworks and also their authenticity can be approached. The penetrating nature of X-rays allows visualizing overpainted hidden pictorial compositions, not visible to naked eye. In the present PhD activity an advanced XRF scanning system for a real time imaging of painted artworks

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6

Watanabe, Masao. "Performance Evaluation of a Newly Developed MR-Compatible Mobile PET Scanner with Two Detector Layouts." Kyoto University, 2020. http://hdl.handle.net/2433/253141.

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7

Alshawa, Majd. "Contribution à la cartographie mobile : développement et caractérisation d’un système basé sur un scanner laser terrestre." Strasbourg, 2009. https://publication-theses.unistra.fr/public/theses_doctorat/2010/ALSHAWA_Majd_2010.pdf.

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La cartographie mobile est un sujet qui se démocratise et gagne en maturité avec la demande croissante des données tridimensionnelles urbaines et périurbaines. La présente thèse aborde la conception d’un système de cartographie mobile terrestre à faible coût avec la particularité d’avoir adapté un scanner laser terrestre pour une utilisation en mode mobile à faible vitesse. Notre objectif n’est pas de rivaliser en termes de performances avec les systèmes commerciaux mais plutôt de s’approprier les compétences scientifiques et technologiques qui permettront de proposer des solutions dans le dom

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8

Ryusuke, Nakamoto. "Comparison of PET/CT with sequential PET/MRI using an MR-compatible mobile PET system." Kyoto University, 2018. http://hdl.handle.net/2433/232099.

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9

Rascão, Madalena da Silva Ruivo Coreixas. "Aquisição de dados LiDAR com TLS e HMLS para deteção de árvores individuais." Master's thesis, ISA, 2019. http://hdl.handle.net/10400.5/21291.

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Mestrado em Engenharia Florestal e dos Recursos Naturais / Instituto Superior de Agronomia. Universidade de Lisboa<br>LiDAR (Light Detection And Ranging) é um sistema baseado nos princípios de Deteção Remota que permite medir distâncias com base no tempo da trajetória da radiação laser, desde que é emitida pelo aparelho até que retorna ao recetor depois de ser refletida numa superfície sólida. A aplicabilidade deste sistema é abrangente a várias áreas da engenharia e prende-se com a capacidade que o mesmo tem de recolher e armazenar dados tridimensionais em forma de nuvens de pontos de qualque

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10

Mulè, Leonardo. "Low-cost survey solutions to support HBIM - Two case studies: the Azurém Canteen and Paço dos Duques in Portugal." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022.

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Heritage Building Information Modelling is strongly connected with the need for accurate surveys, both because BIM models are not usually available and because of the historical buildings’ peculiarity. But acquiring those data demands the involvement of additional costly stakeholders, and that limits the widespread use of LiDAR technologies. New smart devices supplied with this technology may allow customers to acquire point clouds with a different approach, giving us more and more possibilities of easily acquiring a point cloud, possibly omitting the use of expensive equipment and the stakeho

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11

Доставалов, Валерій В. "Система контролю та управління доступом з ідентифікацією за райдужною оболонкою ока". Thesis, Київ / НАУ. – Київ: Вид-во НАУ, 2017. http://er.nau.edu.ua/handle/NAU/26872.

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12

Achakir, Farouk. "Au delà du visible : reconstruction d'environnements par scanners laser et miroirs." Electronic Thesis or Diss., Amiens, 2021. http://www.theses.fr/2021AMIE0088.

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Ce travail de thèse porte sur la numérisation complète d'environnements vastes et complexes en utilisant un TLS ou un scanner mobile. Nous proposons un planificateur de vue multi-objectif adaptatif capable de fonctionner dans un environnement inconnu pour guider l'opérateur humain en mode "hors ligne" et faciliter la tâche de numérisation ou en mode "en ligne" avec un scanner embarqué sur un robot mobile pour une exploration automatique de l'environnement. La méthode proposée suppose que le scanner est déplacé sur une surface plane ce qui est fréquent dans les environnements d'intérieur, les z

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13

Smearcheck, Mark A. "Investigation of Dual Airborne Laser Scanners for Detection and State Estimation of Mobile Obstacles in an Aircraft External Hazard Monitor." Ohio University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1212687342.

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14

Jensfelt, Patric. "Approaches to Mobile Robot Localization in Indoor Environments." Doctoral thesis, Stockholm : Tekniska högsk, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3194.

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15

Nalani, Hetti Arachchige [Verfasser], Hans-Gerd [Akademischer Betreuer] Maas, Eberhard [Akademischer Betreuer] Gülch, and Norbert [Akademischer Betreuer] Haala. "Automatic Reconstruction of Urban Objects from Mobile Laser Scanner Data / Hetti Arachchige Nalani. Gutachter: Hans-Gerd Maas ; Eberhard Gülch ; Norbert Haala. Betreuer: Hans-Gerd Maas." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://d-nb.info/1069093025/34.

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16

Jovančević, Igor. "Exterior inspection of an aircraft using a Pan-Tilt-Zoom camera and a 3D scanner moved by a mobile robot : 2D image processing and 3D point cloud analysis." Thesis, Ecole nationale des Mines d'Albi-Carmaux, 2016. http://www.theses.fr/2016EMAC0023/document.

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Cette thèse s’inscrit dans le cadre d’un projet industriel multi-partenaires ayant pour objectif le développement d’un robot mobile collaboratif (un cobot), autonome dans ses mouvements au sol, capable de réaliser l’inspection visuelle d’un aéronef, à la fois en phase de petite ou grande maintenance dans un hangar ou en phase de pré-vol sur le tarmac d’un aéroport. Le cobot est équipé de capteurs lui permettant d’effectuer ses tâches de navigation autonome, mais également d’un ensemble de capteurs optiques constituant la tête d’inspection : une caméra orientable Pan-Tilt-Zoom et un scanner 3D

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17

Yoo, Hyun-Jae. "Analyse et conception de scanners laser mobiles dédiés à la cartographie 3D d'environnements urbains." Phd thesis, Paris, ENMP, 2011. https://pastel.hal.science/pastel-00579965/fr/.

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Cette thèse a été effectuée en collaboration entre le Centre de Robotique CAOR de MINES ParisTech et MENSI-Trimble sous convention CIFRE (Convention Industrielle de Formation par la Recherche), afin de concevoir un nouveau système de scanner laser innovant dédié aux systèmes mobiles de cartographie. Pour cela, nous avons développé une méthode d'analyse qualitative des relevés laser et une démarche de conception par simulation d'un système mobile de cartographie. Nous avons ensuite élaboré plusieurs concepts de scanners laser mobiles. A l'aide du simulateur, nous avons virtuellement réalisé ces

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Yoo, Hyun-Jae. "Analyse et conception de scanners laser mobiles dédiés à la cartographie 3D d'environnements urbains." Phd thesis, École Nationale Supérieure des Mines de Paris, 2011. http://pastel.archives-ouvertes.fr/pastel-00579965.

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Cette thèse a été effectuée en collaboration entre le Centre de Robotique CAOR de MINES ParisTech et MENSI-Trimble sous convention CIFRE (Convention Industrielle de Formation par la Recherche), afin de concevoir un nouveau système de scanner laser innovant dédié aux systèmes mobiles de cartographie. Pour cela, nous avons développé une méthode d'analyse qualitative des relevés laser et une démarche de conception par simulation d'un système mobile de cartographie. Nous avons ensuite élaboré plusieurs concepts de scanners laser mobiles. A l'aide du simulateur, nous avons virtuellement réalisé ces

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19

Sedlák, Luboš. "Senzorický systém robotu Minidarpa." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218314.

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This master’s thesis describes a sensorial subsystem of a mobile robot. The thesis mentions the structure and a basis of the satellite navigation. There are also described each systems and visualization techniques as e. g. WGS 84, including also other systems for specification of more accurate position on the Earth (EGNOS, WAAS and others). This thesis describes closely also a differential GPS and the corrections. For the purposes of the thesis there has been assembled GPS software for a fundamental and a remote station. There have been chosen and used modules for receiving a GPS signal and wi

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20

Schubert, Stefan. "Optimierter Einsatz eines 3D-Laserscanners zur Point-Cloud-basierten Kartierung und Lokalisierung im In- und Outdoorbereich." Master's thesis, Universitätsbibliothek Chemnitz, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-161415.

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Die Kartierung und Lokalisierung eines mobilen Roboters in seiner Umgebung ist eine wichtige Voraussetzung für dessen Autonomie. In dieser Arbeit wird der Einsatz eines 3D-Laserscanners zur Erfüllung dieser Aufgaben untersucht. Durch die optimierte Anordnung eines rotierenden 2D-Laserscanners werden hochauflösende Bereiche vorgegeben. Zudem wird mit Hilfe von ICP die Kartierung und Lokalisierung im Stillstand durchgeführt. Bei der Betrachtung zur Verbesserung der Bewegungsschätzung wird auch eine Möglichkeit zur Lokalisierung während der Bewegung mit 3D-Scans vorgestellt. Die vorgestellten Alg

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21

Kalvodová, Petra. "Kalibrace snímačů pro multispektrální datovou fúzi v mobilní robotice." Doctoral thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-390238.

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Thesis deals with data fusion and calibration of sensory system of Orpheus-X3 robot and EnvMap mapping robot. These robots are parts of Cassandra robotic system that is used for exploration of hazardous or inaccessible areas. Corrections of measured distances are determined for used laser scanners Velodyne HDL-64, Velodyne HDL-32 and range camera SwissRanger SR4000. Software MultiSensCalib has been created and is described. This software is used for determination of intrinsic parameters of heterogeneous cameras of the sensory head and for determination of mutual position and orientation of the

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22

Gourguechon, Camille. "Création et mise à jour de maquettes numériques de bâtiments (BIM) à partir de nuages de points issus de scanners laser dynamiques . : focus sur les environnements intérieurs." Electronic Thesis or Diss., Strasbourg, 2024. http://www.theses.fr/2024STRAD019.

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Poussé par des perspectives de conception et gestion plus efficientes et durables, le BIM (Building Information Modelling) tend à se développer à tout le secteur du bâtiment. Cependant, malgré l’avènement des scanners laser pour les levés d’intérieurs, l’adoption du BIM dans l’ancien est freinée par les difficultés de création et de mise à jour des maquettes qui s’avèrent des tâches fastidieuses et chronophages réalisées essentiellement manuellement. C’est dans ce contexte que se positionne cette thèse, dont l’objectif est l’automatisation du processus de modélisation de bâtiments à partir de

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23

Fischer, Andreas, and Andreas Schäfer. "Untersuchungen zum mobilen 3D-Scannen unter Tage bei K+S." Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2016. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-205693.

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Im Rahmen einer Diplomarbeit an der TU Bergakademie Freiberg wurden in 2014 die Grundlagen für die Auswertung von 3D-Punktwolken zur automatisierten Nachtragung des Risswerks gelegt. Um die dafür notwendigen 3D-Punktwolken möglichst wirtschaftlich zu erstellen, laufen seit 2015 Untersuchungen und Testmessungen zur Machbarkeit des untertägigen Einsatzes von mobil messenden Laserscannern. Im Folgenden werden verschiedene technische Ansätze sowie die Ergebnisse der Testmessungen und die weiteren geplanten Schritte vorgestellt<br>As part of a thesis at the Technical University of Freiberg, a basis

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24

Tiraferri, Matteo. "Georeferenziazione e rilievo tridimensionale di beni culturali in sotterraneo: gli Ipogei di Santarcangelo di Romagna." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.

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All’interno del patrimonio nazionale dei Beni Culturali, si inserisce la categoria delle strutture ipogee, numerosissime nel territorio italiano: ne sono un esempio i percorsi ipogei presenti a Santarcangelo di Romagna, oggetto della presente tesi. Le moderne tecniche geomatiche di rilievo tridimensionale, specialmente se integrate tra loro, offrono valide e molteplici soluzioni per la documentazione dello stato di fatto di tali ambienti sotterranei. La sperimentazione condotta nell’ambito della presente tesi di laurea ha previsto l’esecuzione di una rete topografica di precisione e l’impieg

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25

Narayana, Keerthi. "Solutions de localisation des systèmes mobiles de cartographie en environnements structurés." Phd thesis, École Nationale Supérieure des Mines de Paris, 2011. http://pastel.archives-ouvertes.fr/pastel-00617985.

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La localisation automatique est une fonctionnalité importante des systèmes de cartographie mobiles (Mobile Mapping Systems, MMS). La présente thèse présente des solutions complémentaires aux méthodes de localisation utilisées actuellement dans un système MMS terrestre, qui utilise des récepteurs GPS et des centrales à inertie (Inertial Measurement Units, IMU). Un post-traitement, par lissage des données, permet d'améliorer les cartes 3D générées par un MMS. Cette approche est cependant insuffisante pour corriger les erreurs à variations lentes des capteurs. La présente thèse propose une techni

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26

Nalani, Hetti Arachchige. "Automatic Reconstruction of Urban Objects from Mobile Laser Scanner Data." Doctoral thesis, 2014. https://tud.qucosa.de/id/qucosa%3A28506.

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Aktuelle 3D-Stadtmodelle werden immer wichtiger in verschiedenen städtischen Anwendungsbereichen. Im Moment dienen sie als Grundlage bei der Stadtplanung, virtuellem Tourismus und Navigationssystemen. Mittlerweile ist der Bedarf an 3D-Gebäudemodellen dramatisch gestiegen. Der Grund dafür sind hauptsächlich Navigationssysteme und Onlinedienste wie Google Earth. Die Mehrheit der Untersuchungen zur Rekonstruktion von Gebäudemodellen von Luftaufnahmen konzentriert sich ausschließlich auf Dachmodellierung. Jedoch treiben Anwendungen wie Virtuelle Realität und Navigationssysteme die Nachfrage nach

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27

Chiu, Lin-Chieh, and 邱麟捷. "Smart Mobile Devices 3D Scanner Based on Contour and Stereoscopic." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/37089246789857234665.

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碩士<br>朝陽科技大學<br>資訊工程系<br>104<br>3D image reconstruction has important applications in many fields such as Virtual Reality, E-commerce, 3D Game, and etc. The traditional 3D scanner device has 3D reconstruction of the effect of high accuracy degree, but it’s equipment is expensive. This paper proposes a three-dimensional reconstruction of smart devices based on a method for low cost and convenience features. Basic configuration is a smart device with a rotating disc. The use of smart devices on both the sensor and the direction of the camera function automatically measure the direction the camer

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Belkova, Anna. "Calibration of a Mobile-Gantry CT Scanner for Surgical Navigation." Thesis, 2013. http://hdl.handle.net/1974/8252.

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In image-guided surgical navigation, instruments tools are tracked by a position sensor and their locations rendered along with the patient's anatomy. Conventional methods require an invasive, time-consuming and potentially uncertain process of intra-operative registration of the images to the patient. In a direct navigation system, such an intra-operative registration is replaced with pre-operative patient-independent calibration in a process that determines the relationship between the coordinate frame of imaging equipment and the coordinate frame of the position sensor. This dissertation p

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29

Tsai, Yao-yi, and 蔡曜宇. "A Mobile Robot Guidance System Using Laser Scanner in an Unknown Environment." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/03200754142564705619.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>96<br>The purpose of this study is to propose the wheeled mobile robot (WMR) navigation system under an unknown environment, which consisting the 2D distance detection function, the environmental outline and the route constructing functions. The environmental outlines, which are the distance information in the front of the robot within the segmental area of the 180 degrees, are constructed based on the collecting angles and distance values through the detection and examination of the laser range finder. The robot also can move towards the specified goal progressively

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30

Talnishnikh, Elena [Verfasser]. "NMR of geophysical drill cores with a mobile Halbach scanner / vorgelegt von Elena Talnishnikh." 2007. http://d-nb.info/987019651/34.

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Wong, Kim-Hon, and 黃金漢. "Pose-Tracking and Initialization of an Autonomous Mobile Robot Using Ultrasonics and Laser Scanner." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/73141785143672139385.

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碩士<br>國立中興大學<br>電機工程學系<br>92<br>This thesis develops methodologies and techniques for pose-tracking and pose initialization of an autonomous mobile robot (AMR) using two different external sensors: ultrasonics and laser scanner. First, a novel FPGA-based ultrasonic pose-tracking system by fusing the time-of-flight (TOF) readings together with the FAEIF algorithm is proposed to improve the accuracy and robustness of pose estimation for the AMR. The FAEIF-based sensor fusion approach is presented to circumvent the nonlinear filter divergence problems. Second, a low-complexity and accurate pose-t

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32

Becherini, Pietro. "Le Mura di Verona. Il rilievo digitale per la tutela e valorizzazione del Patrimonio UNESCO." Doctoral thesis, 2020. http://hdl.handle.net/2158/1186421.

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A 20 anni dalla nomina di Patrimonio UNESCO della città veronese, il presente lavoro si concentra sulla salvaguardia del Patrimonio della città scaligera attraverso le più recenti tecnologie digitali sviluppatesi negli ultimi decenni. La via della conservazione non può che partire da quella della conoscenza e il rilievo delle mura di Verona, processo inedito sul territorio scaligero, è stato così occasione di verifica di un procedimento di rilievo integrato dove gli sviluppi tecnologici messi a disposizione nel campo della documentazione, danno notevoli opportunità per il rilevamento dell’Arch

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33

Schubert, Stefan. "Optimierter Einsatz eines 3D-Laserscanners zur Point-Cloud-basierten Kartierung und Lokalisierung im In- und Outdoorbereich." Master's thesis, 2014. https://monarch.qucosa.de/id/qucosa%3A20206.

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Die Kartierung und Lokalisierung eines mobilen Roboters in seiner Umgebung ist eine wichtige Voraussetzung für dessen Autonomie. In dieser Arbeit wird der Einsatz eines 3D-Laserscanners zur Erfüllung dieser Aufgaben untersucht. Durch die optimierte Anordnung eines rotierenden 2D-Laserscanners werden hochauflösende Bereiche vorgegeben. Zudem wird mit Hilfe von ICP die Kartierung und Lokalisierung im Stillstand durchgeführt. Bei der Betrachtung zur Verbesserung der Bewegungsschätzung wird auch eine Möglichkeit zur Lokalisierung während der Bewegung mit 3D-Scans vorgestellt. Die vorgestellten Alg

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34

Long, Myra D. "Keyboard design deficiencies of mobile bar code scanners." Thesis, 2006. http://hdl.handle.net/1957/28947.

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The use of mobile bar code scanners is expanding to markets beyond popular manufacturing uses, such as healthcare, environmental testing and professional services. The successful interaction of users with mobile bar code scanners is of great importance from a business and technology perspective as well as from the user standpoint. Interaction problems associated with these devices may cause errors in data collection and affect job performance due to frustration, resulting in a potential impact on internal costs. The primary objective of this research was to develop design guidelines for the re

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Padmaram, R. "Design, Fabrication And Testing Of A Versatile And Low-Cost Diffuse Optical Tomographic Imaging System." Thesis, 2007. https://etd.iisc.ac.in/handle/2005/530.

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This thesis reports the work done towards design and fabrication of a versatile and low cost, frequency domain DOT (Diffuse Optical Tomography) Imager. A design which uses only a single fiber for the source and a single fiber bundle for the detector is reported. From near the source, to diametrically opposite to the source, the detected intensity of scattered light varies by three to four orders in magnitude, depending on the tissue/phantom absorption and scattering properties. The photo multiplier tube’s (PMT’s) gain is controlled to operate it in the linear range, thus increasing the dynamic

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Padmaram, R. "Design, Fabrication And Testing Of A Versatile And Low-Cost Diffuse Optical Tomographic Imaging System." Thesis, 2007. http://hdl.handle.net/2005/530.

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This thesis reports the work done towards design and fabrication of a versatile and low cost, frequency domain DOT (Diffuse Optical Tomography) Imager. A design which uses only a single fiber for the source and a single fiber bundle for the detector is reported. From near the source, to diametrically opposite to the source, the detected intensity of scattered light varies by three to four orders in magnitude, depending on the tissue/phantom absorption and scattering properties. The photo multiplier tube’s (PMT’s) gain is controlled to operate it in the linear range, thus increasing the dynamic

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