Sökning: "registration accuracy"

Visar resultat 1 - 5 av 60 uppsatser innehållade orden registration accuracy.

  1. 1. Evaluation of SLAM based mobile laser scanning and terrestrial laser scanning in the Kiruna mine : A comparison between the Emesent Hovermap HF1 mobile laser scanner and the Faro Laser Scanner Focus3D X 330 terrestrial laser scanner

    Kandidat-uppsats, Högskolan i Gävle/Samhällsbyggnad

    Författare :Claes Gustafsson; [2023]
    Nyckelord :Terrestrial laser scanning; mobile laser scanning; simultaneous localization and mapping; underground mapping; Kiruna mine.;

    Sammanfattning : The mining industry has over the last few decades seen a drastic increase in the usage of laser scanning technologies as a way of creating 3D maps of the mines being exploited. Underground mapping in places such as mines has become more prevalent as the technology has progressed and made it easier to generate highly detailed point clouds faster. LÄS MER

  3. 2. Evaluation of a Novel Reconstruction Framework for Gamma Knife Cone-Beam CT - The Impact of Scatter Correction and Noise Filtering on Image Quality and Co-registration Accuracy

    Master-uppsats, KTH/Fysik

    Författare :Ida Hägnestrand; [2023]
    Nyckelord :Gamma Knife; Cone-beam computed tomography; Image quality; Image reconstruction; Co-registration; Contrast; Uniformity; Spatial resolution; Scatter correction; Wiener filter; Noise filter; Patient positioning; Stereotactic radiosurgery; Gammakniv; Strålkniv; Cone-Beam Computed Tomography; Bildkvalitet; Bildrekonstruktion; Co-registrering; Kontrast; Uniformitet; Spatial upplösning; Spridningskorrigering; Wienerfilter; Brusfilter; Stereotaktisk strålkirurgi;

    Sammanfattning : The Gamma Knife is a non-invasive stereotactic radiosurgery system used for treatments of deep targets in the brain. Accurate patient positioning is needed for precise radiation delivery to the target. LÄS MER

  4. 3. Urban tree canopy mapping -an open source deep learning approach

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Tobias Rydlinge; [2023]
    Nyckelord :Geography; GIS; AI; deep learning; urban trees; remote sensing; Earth and Environmental Sciences;

    Sammanfattning : Urban trees have an important role to provide ecosystem services and to make our cities greener and more sustainable. The changing climate and densification of cities make it even more valuable to preserve and investigate in urban trees. LÄS MER

  5. 4. Feature-Aware Point Transformer for Point Cloud Alignment Classification : Pose your pose to FACT

    Master-uppsats, Linköpings universitet/Institutionen för systemteknik

    Författare :Ludvig Dillén; [2023]
    Nyckelord :point cloud alignment; point cloud alignment classification; alignment validation; point cloud; map validation; map quality; misalignment recognition; alignment quality; point transformer; Sinkhorn divergence; differential entropy; point cloud co-visibility; point cloud visibility; SLAM; point cloud registration; point cloud density;

    Sammanfattning : As the demand for 3D maps from LIDAR scanners increases, delivering high-quality maps becomes critical. One way to ensure the quality of such maps is through point cloud alignment classification, which aims to classify the alignment error between two registered point clouds. LÄS MER

  7. 5. Möjligheten att använda Apples LiDAR-sensor för mättekniska tillämpningar

    Kandidat-uppsats, Högskolan i Gävle/Samhällsbyggnad

    Författare :Hugo Dalhammer; Erik Jensen; [2022]
    Nyckelord :Lidar; P50; BIM; Faramoon; Laser-Scanning; LiDAR; Leica P50; BIM; Faramoon; Laserskanning;

    Sammanfattning : Framtagandet av byggnadsinformationsmodeller (BIM) sker på många olika sätt och blir allt vanligare i dagens samhälle. I dagsläget sker datainsamlingen för att skapa en BIM med hjälp av terrester och flygburen laserskanning vilket gör det till en dyr och tidskrävande process. LÄS MER