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Tesis sobre el tema "Laser scanning technique"

Autor: Grafiati

Publicado: 10 de marzo de 2023

Última modificación: 31 de julio de 2025

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1

Tam, Chung-yan Candy. "Study of rock joint roughness using 3D laser scanning technique." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/b40203487.

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Tam, Chung-yan Candy, and 譚頌欣. "Study of rock joint roughness using 3D laser scanning technique." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B40203487.

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3

Yahyavi, Zanjani Matin, Henning Zeidler, André Martin, and Andreas Schubert. "Application of Laser Scanning as a Pre-machining metrology technique in Jet-ECM." Universitätsbibliothek Chemnitz, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-227104.

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In Electrochemical Machining (ECM), where the material removal takes place based on the anodic dissolution of the workpiece material, the working distance is one of the most important parameters. Especially in Jet Electrochemical Machining (Jet-ECM), where a micro nozzle is moved over the initial surface of the workpiece in order to apply an electrolytic free jet to produce the desired shapes, the distance between the nozzle and the workpiece becomes even more important. On the one hand a small working distance is aspired to achieve high current densities resulting in a high efficiency of the

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4

Favey, Etienne. "Investigation and improvement of airborne laser scanning technique for monitoring surface elevation changes of glaciers /." Zürich, 2000. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=14045.

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5

Yildiz, Bilge Can. "Imaging Of Metal Surfaces Using Confocal Laser Scanning Microscopy." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613641/index.pdf.

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Optical imaging techniques have improved much over the last fifty years since the invention of the laser. With a high brightness source many imaging applications which were once inaccessible to researchers have now become a reality. Among these techniques, the most beneficial one is the use of lasers for both wide-field and confocal imaging systems. The aim of this study was to design a laser imaging system based on the concept of laser scanning confocal microscopy. Specifically the optical system was based on optical fibers allowing the user to image remote areas such as the inner surface of

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6

Barnier, Fabien. "Fibre Bragg grating techniques." Thesis, University of Hull, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322570.

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7

Liu, Yan. "Comparison of tactile probe CMM and laser scanning techniques for reverse engineering." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ30955.pdf.

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8

Monte, Jamie Marie, and Jamie Marie Monte. "ROCK MASS CHARACTERIZATION USING LASER SCANNING AND DIGITAL IMAGING DATA COLLECTION TECHNIQUES." Thesis, The University of Arizona, 2004. http://hdl.handle.net/10150/621370.

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The primary focus of this research is to evaluate whether laser scanning and digital imaging can provide a reliable means to collect essential rock mass data. Simulated and field case studies were conducted to determine if fracture orientation data (dip angle and dip direction) can be accurately estimated from a laser generated three - dimensional point cloud. Orientations measured with a Brunton Compass were compared to values derived from point clouds. The difference in dip direction was within three degrees and as high as twelve degrees for the dip angle. When fracture sets were esti

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9

Doukoglou, Tilemachos D. "Non-parametric system identification techniques for numerical deconvolution of scanning laser microscope images." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61889.

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10

Meadway, Alexander. "Combinations of techniques for the advancement of scanning laser ophthalmology and optical coherence tomography." Thesis, University of Kent, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.653049.

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In this thesis methods of eye imaging are investigated, primarily optical coherence tomography (OCT) and scanning laser ophthalmology (SLO). These are two well established technologies. This thesis investigates the combination of techniques to improve resolution, sensitivity and the amount of information that can be extracted from a device. There are three systems presented in the thesis. The first generates on-axis and off axis confocal retinal images simultaneously by way of a drilled mirror. Off-axis imaging provides greater depth penetration, but at the cost of resolution. The second syste

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11

Göbel, Werner. "3D laser-scanning techniques for two-photon calcium imaging of neural network dynamics in vivo /." Zürich : ETH, 2008. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17655.

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12

Dalgleish, Gordon Fraser. "A study of laser-based scanning techniques for defect recognition in sintered cutting tool inserts." Thesis, University of Hull, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.389285.

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13

Acharya, Dabit. "COMPARATIVE EXPERIMENTAL STUDIES FOR GLOBAL DAMAGE DETECTION IN PLATES USING THE SCANNING LASER VIBROMETER TECHNIQUES." University of Akron / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=akron1155079600.

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14

TORTAROLO, GIORGIO. "Laser Scanning Microscopy with SPAD Array Detector: Towards a New Class of Fluorescence Microscopy Techniques." Doctoral thesis, Università degli studi di Genova, 2020. http://hdl.handle.net/11567/1000654.

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Laser scanning microscopy is one of the most common architectures in fluorescence microscopy. In a nutshell: the objective lens focuses the laser beam(s) and generates an effective excitation spot which is scanned on the sample; for each pixel, the fluorescent image is projected into a single-element detector, which – typically – spatially and temporally integrates the fluorescent light along its sensitive area and the pixel dwell-time, thus providing a single-intensity value per pixel. Notably, the integration performed by the single-element detector hinders any additional information potenti

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15

Paul, Sanjoy. "CHARGE TRANSPORT IN LIQUID CRYSTALLINE SMECTIC AND DISCOTIC ORGANIC SEMICONDUCTORS: NEW RESULTS AND EXPERIMENTAL METHODOLOGIES." Kent State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=kent1469836810.

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16

GASPARONI, ANDREA. "Tracking and continuous-tracking scanning laser doppler vibrometer: innovative techniques for the operational characterization of rotating blades." Doctoral thesis, Università Politecnica delle Marche, 2010. http://hdl.handle.net/11566/242169.

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17

Lewark, Erick A. "Automated techniques in anthropometry using a three dimensional laser scanner." Ohio : Ohio University, 1998. http://www.ohiolink.edu/etd/view.cgi?ohiou1176485676.

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18

Benaud, Pia Emma. "Exploring the multiple techniques available for developing an understanding of soil erosion in the UK." Thesis, University of Exeter, 2017. http://hdl.handle.net/10871/32939.

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Accelerated soil erosion and the subsequent decline in soil depth has negative environmental, and consequently financial, impacts that have implications across all land cover classifications and scales of land management. Ironically, although attempts to quantify soil erosion nationally have illustrated that soil erosion can occur in the UK, understanding whether or not the UK has a soil erosion problem still remains a question to be answered. Accurately quantifying rates of soil erosion requires capturing both the volumetric nature of the visible, fluvial pathways and the subtle nature of the

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19

Fekrmandi, Hadi. "Development of New Structural Health Monitoring Techniques." FIU Digital Commons, 2015. http://digitalcommons.fiu.edu/cgi/viewcontent.cgi?article=2923&context=etd.

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During the past two decades, many researchers have developed methods for the detection of structural defects at the early stages to operate the aerospace vehicles safely and to reduce the operating costs. The Surface Response to Excitation (SuRE) method is one of these approaches developed at FIU to reduce the cost and size of the equipment. The SuRE method excites the surface at a series of frequencies and monitors the propagation characteristics of the generated waves. The amplitude of the waves reaching to any point on the surface varies with frequency; however, it remains consistent as lon

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20

Graves, Rosemarie Rachel. "Can a hemispherical scanning imaging differential optical absorption spectroscopy technique be used to improve understanding of the emissions, dynamics and chemistry of nitrogen dioxide in the urban boundary layer?" Thesis, University of Leicester, 2014. http://hdl.handle.net/2381/28636.

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Air quality is an international issue which has been the subject of several European directives on pollution levels as atmospheric pollutants can have significant effects on human health, ecosystems and climate change, especially at high levels. In the UK the largest sources of atmospheric pollutants are products of combustion from power generation and motor vehicles including NO[subscript x] (NO and NO[subscript 2]), CO, VOCs and particulate matter. Hence it is becoming increasingly important to measure changes in these air pollutants especially in urban areas where these pollutants are at th

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21

SUZUKI, SELLY S. "Avaliação histomorfométrica, imunoistoquímica e microtomográfica da ação da terapia laser de baixa potência no processo de reabsorção radicular durante movimentação ortodôntica induzida em ratos." reponame:Repositório Institucional do IPEN, 2016. http://repositorio.ipen.br:8080/xmlui/handle/123456789/26832.

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Submitted by Claudinei Pracidelli (cpracide@ipen.br) on 2016-11-11T17:46:50Z No. of bitstreams: 0<br>Made available in DSpace on 2016-11-11T17:46:50Z (GMT). No. of bitstreams: 0<br>A movimentação dentária induzida é um processo biológico complexo mediado por estímulos mecânicos, levando a um subsequente processo de remodelação óssea, podendo haver reabsorção indesejada da raiz dentária provocada pelo excesso de força. Uma vez que a movimentação ortodôntica se baseia em um processo inflamatório localizado, o propósito deste estudo foi avaliar os efeitos do laser de baixa potência no processo de

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22

Huang, Yi-Zhen, and 黃怡蓁. "Rail Wear Inspection by the Laser Scanning Technique." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/r7y6at.

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碩士<br>國立中央大學<br>土木工程學系<br>106<br>The railway transportation system plays a very important role in the developed countries. In recent years, as increase the speed and frequency of trains, the rail system is damaged more quickly. When the damage of the rail head reaches a degree, the contact area between the head of rail and the train will increase. These results carries the passenger comfort ability, noise problems and even lead to traffic accidents. The railway maintenance group must immediately and accurately measure the rail wearing condition to ensure the safety of the rail system operation

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23

Chao, Chun-Wei, and 曹峻瑋. "Application of 3D-Laser Scanning Technique in Tunnel Engineering." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/19596001301890786972.

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碩士<br>國立臺灣大學<br>土木工程學研究所<br>94<br>Traditional tunnel’s profile monitoring usually costs a lot of manpower, finance and time, and it utilizes only few, selected and fixed observation points in a single tunnel’s profile to get the desired information. In the advancement of optics’ technique and of the performance of computer recently, the development of a new monitoring technique, which is easy to operate, rapid and inexpensive, for tunnel engineering might be helpful for us to equally understand the deformation tendency in a tunnel. From this, derived results can serve as a reference for future

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24

Chen, Chi-Yuan, and 陳其沅. "Using 3D Laser Scanning Technique in Structure Monitoring and Terrain Modeling." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/92d64z.

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碩士<br>國防大學理工學院<br>空間科學碩士班<br>105<br>ABSTRACT This research integrates ground LiDAR(Light detection and ranging)- 3D scanning technique and point cloud data, selected Daxi Bridge and nearby valley as test areas, attempt to monitoring the bridge deformation in different times, and producing digital elevation model(DEM). The aims of those studies are summarized as follow: (1) Trying to enhance ground LiDAR technique working and point cloud data processing. (2) Replace the traditional surveying with ground LiDAR technique to implement the feasibility of structural monitoring operations. (3) Comp

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25

"Highly Sensitive in-Plane Strain Mapping Using a Laser Scanning Technique." Doctoral diss., 2014. http://hdl.handle.net/2286/R.I.27516.

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abstract: In this work, a highly sensitive strain sensing technique is developed to realize in-plane strain mapping for microelectronic packages or emerging flexible or foldable devices, where mechanical or thermal strain is a major concern that could affect the performance of the working devices or even lead to the failure of the devices. Therefore strain sensing techniques to create a contour of the strain distribution is desired. The developed highly sensitive micro-strain sensing technique differs from the existing strain mapping techniques, such as digital image correlation (DIC)/micro-

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26

Huang, Nai-Jie, and 黃迺絜. "Analysis of Geological Section for Fault Trenches Using Laser Scanning Technique." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/12578317840577875518.

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碩士<br>國立臺灣大學<br>土木工程學研究所<br>104<br>Excavating fault trenches is one of main method to study paleoseismology. However, the current approach which costs considerable time and manpower only relies on geologists to recognize the multiple faulting events. Therefore, this study constructs an automatic procedure to map geological sections by using terrestrial LiDAR systems integrated with cameras. The experiment results indicated that the proposed approach can provide high-quality images of fault trenches and amount of image deformation can also be simultaneously evaluated. In the supervised classifi

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27

Chang, Ming-Cheng, and 張明政. "A Study of Using 3D Laser Scanning Technique for Land Parcel Survey－Building Experiment." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/36562905764922151217.

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碩士<br>國立中興大學<br>土木工程學系<br>92<br>Cadastral maps and cadastral data can provide an very important basis for the land administration management. The accuracy of cadastral maps is closely related to the rights and interests of citizens. Among cadastral surveys, the land parcel survey undoubtedly plays the most important role. Currently, the land parcel survey is only performed to produce 2-D products. In fact, during building state survey, there are lots of spatial information can be obtained. 2-D cadastral data are not sufficient to meet the needs of modern technology for wide uses in the 3-D fie

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28

Chen, Li-Sheng, and 陳立笙. "Integration of Digital Photogrammetry and Laser Scanning Technique for Generating High-Quality 3D Point Clouds." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/y88x5u.

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碩士<br>國立臺灣大學<br>土木工程學研究所<br>105<br>The Light Detection and Ranging (LiDAR) technique is a popular 3D surveying technique nowadays, which is capable of swiftly and precisely acquiring point cloud data with high density, for various engineering monitoring tasks. However, due to the limitation on the mechanism of the used technique, the point cloud data acquired by the LiDAR system frequently reaches unfavorable results, which have the flaws, such as uneven resolution and missing areas. In order to solve this problem, a combined approach for delivering high quality 3D colored point cloud is devel

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29

Tseng, Hsing-Yu, and 曾欣郁. "The 3D Laser Scanning Technique for Damage Detection of Mortar Wall-Painting in Traditional Buildings." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/m4ce3j.

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碩士<br>國立金門大學<br>土木與工程管理學系碩士班<br>100<br>The traditional building walls usually were covered by mortar that become beautifying the space basis. Some paintings of walls are a symbol of cultural heritage and family spirit, at the same time, the wall-painting show increasing living fun and creation, education and art value. For the conservation site, the decorations of historical buildings saved should be regarded as equally important with the building structure. Owing environment factors, the mortar-wall and wall-painting are damaged including humidity variation and water seepage. To the tradition

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30

詹金萬. "Laser scanning technique for the detection of minority carrier lifetime inhomogeneities and resistivity inhomogeneities in semiconductor." Thesis, 1986. http://ndltd.ncl.edu.tw/handle/91709420570248232417.

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31

DOTTA, GIULIA. "Semi-automatic analysis of landslide spatio-temporal evolution." Doctoral thesis, 2017. http://hdl.handle.net/2158/1076767.

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Le tecniche di rilevamento rappresentano un utile strumento per rilevare e caratterizzare i processi gravitativi di versante, in particolare attraverso l’uso di approcci volti ad individuare le aree in movimento. Nel dettaglio, tecniche come il laser scanner terrestre e la fotogrammetria digitale permettono di ottenere rappresentazioni ad alta risoluzione dello scenario osservato sotto forma di una nuvola di punti (point cloud) in tre dimensioni. Durante gli ultimi anni, l’uso delle nuvole di punti per investigare i cambiamenti morfologici a scala temporale e spaziale, è notevolmente aum

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32

CHU, MEI, and 朱梅. "The Design of Imaging Lens for Coaxial Laser Scanning and Visual Inspection Techniques." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/01156864654364687719.

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碩士<br>明道大學<br>光電暨能源工程學系碩士班<br>98<br>Owing to the blooming of display industry and the low quality of traditional manufacturing process，the demanding of UV laser manufacture system is increasing. In order to maintain the precision of manufactures, it is necessary to set up the real time monitoring imaging system. The object of this research is to design a coaxial laser scanning and visual inspection imaging lens to monitor the real time image, which is made by the scanning F/ lens for large scale micro lithography. The procedure is to simulate an F/ lens and an imaging lens to meet the initia

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33

Komba, J. J. (Julius Joseph). "Analytical and laser scanning techniques to determine shape properties of aggregates used in pavements." Diss., 2013. http://hdl.handle.net/2263/32799.

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Pavement layers are constructed using a combination of materials, of which rock aggregates constitute a larger proportion. Current understanding is that the performance of pavements is dependent on the aggregate shape properties which include form, angularity and surface texture. However, direct and accurate measurements of aggregate shape properties remain a challenge. The current standard test methods used to evaluate aggregate shape properties cannot measure these properties accurately. Among the reasons contributing to the difficulties in the determination of aggregate shape properties i

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34

Baltazar, Luís Filipe Almeida. "Comparing different methods to measure biofilm thickness: the techniques are: optical coherence tomography, confocal laser scanning microscopy and low load compression test." Master's thesis, 2015. http://hdl.handle.net/1822/39586.

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Dissertação de mestrado integrado em Engenharia Biomédica (área de especialização em Engenharia Clínica)<br>Biofilm formation remains a serious concern in industry and in the medical field. They are responsible for huge economical losses in many industrial sectors and for serious infections associated with biomaterial implants and medical devices. These infections are hard to treat because bacteria within the biofilm are more resistant to antibiotics and to the host immune system. Therefore, studying biofilm properties and mechanisms is of utmost relevance to develop efficient approaches

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35

Joshi, Abhishek Shriram. "Image Processing and Super Resolution Methods for a Linear 3D Range Image Scanning Device for Forensic Imaging." 2013. http://hdl.handle.net/1805/3414.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>In the last few decades, forensic science has played a significant role in bringing criminals to justice. Shoe and tire track impressions found at the crime scene are important pieces of evidence since the marks and cracks on them can be uniquely tied to a person or vehicle respectively. We have designed a device that can generate a highly accurate 3-Dimensional (3D) map of an impression without disturbing the evidence. The device uses lasers to detect the changes in depth and hence it is crucial to accurately detect the position of

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