Search for dissertations about: "laser scanning"

Showing result 16 - 20 of 233 swedish dissertations containing the words laser scanning.

  2. 16. Ground Object Recognition using Laser Radar Data : Geometric Fitting, Performance Analysis, and Applications

    Author : Christna Grönwall; Fredrik Gustafsson; Kalle Åström; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Laser radar; object detection; object recognition; performance; least squares; ICP; Cramér-Rao; Signal processing; Signalbehandling;

    Abstract : This thesis concerns detection and recognition of ground object using data from laser radar systems. Typical ground objects are vehicles and land mines. For these objects, the orientation and articulation are unknown. The objects are placed in natural or urban areas where the background is unstructured and complex. READ MORE

  4. 17. Stainless steels fabricated by laser melting : Scaled-down structural hierarchies and microstructural heterogeneities

    Author : Kamran Saeidi; Zhijian Shen; Xiaoxu Huang; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Selective laser melting; Stainless steel; Structural hierarchies; Microstructure heterogeneity; Mechanical properties; Materials Chemistry; materialkemi;

    Abstract : Additive manufacturing is revolutionizing the way of production and use of materials. The clear tendency for shifting from mass production to individual production of net-shape components has encouraged using selective laser melting (SLM) or electron beam melting (EBM). READ MORE

  5. 18. Scanning capacitance microscopy for semiconductor characterisation

    Author : Olle Bowallius; KTH; []
    Keywords : SCM; SSRM; InP; Si; Buried heterostructure laser; Doping; Regrowth; Capacitance; P-n junction;

    Abstract : .... READ MORE

  6. 19. Investigation and calibration of pulsed time-of-flight terrestrial laser scanners

    Author : Yuriy Reshetyuk; Lars E. Sjöberg; Stig-Göran Mårtensson; KTH; []
    Keywords : terrestrial laser scanning; error sources; calibration; coordinate precision accuracy;

    Abstract : This thesis has two aims. The first one is the investigation and analysis of the errors occurring in the measurements with pulsed time-of-flight (TOF) terrestrial laser scanners (TLS). A good understanding of the error sources and the relationships between them is necessary to secure the data accuracy. READ MORE

  7. 20. Laser Scanning Multiphoton Microscopy – Focusing on Fluorescence Correlation Spectroscopy and Fluorescence Lifetime Imaging for Biomedical Applications

    Author : Jeemol James; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Laser scanning multiphoton microscopy; intrinsic cellular fluorophores.; fluorescence correlation spectroscopy; fluorescence lifetime imaging; melanoma metastasis;

    Abstract : Laser scanning multiphoton microscopy (MPM) is considered as a non-invasive technology for three-dimensional imaging of complex biological tissues. The quantitative potential of the MPM is not investigated as much as qualitative imaging. READ MORE