Essays about: "batymetri"

Found 5 essays containing the word batymetri.

  1. 1. Multi-Resolution Inference of Bathymetry From Sidescan Sonar

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Zhengjie Ji; [2023]
    Keywords : ;

    Abstract : How to obtain complete and high-resolution bathymetry is an important research topic in the underwater domain. However, existing methods have certain shortcomings. Multibeam echosounder (MBES) can produce narrow beam range readings of the seafloor, but there is an interval between every two beams (between 10cm to 10m), and the resolution is low. READ MORE

  3. 2. Våtmarksbatymetri : djupmätning av 10 anlagda våtmarker i Mälardalen

    University essay from SLU/Dept. of Aquatic Sciences and Assessment

    Author : Gordon Lindau; [2022]
    Keywords : batymetri; djupmätning; portabelt ekolod; kastbart ekolod; våtmark; fosfordamm;

    Abstract : Tio anlagda våtmarker i jordbrukslandskap i Mälardalen har undersökts i syfte att bestämma vattendjup och volym samt för att studera batymetriska metoder som kan vara lämpliga vid djupmätning av fosfordammar och andra grunda våtmarker. De metoder som använts är portabelt, kastbart ekolod som både släpats bakom kajak och kastats med fiskespö från land samt manuell mätning med mätsticka. READ MORE

  4. 3. Estimation of Water Depth from Multispectral Drone Imagery : A suitability assessment of CNN models for bathymetry retrieval in shallow water areas

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Qianyao Shen; [2022]
    Keywords : Bathymetry Retrieval; Multispectral Imagery; Convolutional Neural Network CNN ; Hämtning Av Batymetri; Multispektrala Bilder; Konvolutionellt Neuralt Nätverk CNN ;

    Abstract : Aedes aegypti and Aedes albopictus are the main vector species for dengue disease and zika, two arboviruses that affect a substantial fraction of the global population. These mosquitoes breed in very slow-moving or standing pools of water, so detecting and managing these potential breeding habitats is a crucial step in preventing the spread of these diseases. READ MORE

  5. 4. Combining Sidescan Sonar and Multibeam Echo Sounder to Improve Bathymetric Resolution per Ping

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Filip Hestell; [2021]
    Keywords : ;

    Abstract : The master thesis degree project is carried out in the area of robotics, particularly in the area of autonomous underwater vehicles (AUV) and seafloor mapping. The goal of this degree project is to investigate if sidescan sonar data can be used to increase the bathymetric resolution. READ MORE

  6. 5. Machine Learning for Inferring Sidescan Images from Bathymetry and AUV Pose

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Zitao Zhang; [2019]
    Keywords : ;

    Abstract : Underwater navigation has been a big challenge for autonomous underwater vehicles (AUVs) for a long time. It is highly dependent on acoustic methods called SONAR. There are two kinds of sonar sensors which are commonly used, the multibeam sonar and the sidescan sonar. Both of them have some advantages and limitations. READ MORE