Essays about: "Digitala höjdmodeller"

Showing result 1 - 5 of 11 essays containing the words Digitala höjdmodeller.

  1. 1. Skyline Delineation for Localization in Occluded Environments : Improved Skyline Delineation using Environmental Context from Deep Learning-based Semantic Segmentation

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

    Author : Kyle William Coble; [2023]
    Keywords : Skyline delineation; Skyline detection; Semantic segmentation; Terrain based navigation; Digital elevation models; Uncrewed surface vessel; Planetary exploration robots; Horisont avgränsning; Horisont upptäckt; Semantisk segmentering; Terrängbaserad navigering; Digitala höjdmodeller; Obemannat ytfartyg; Planetariska utforskningsrobotar;

    Abstract : This thesis addresses the problem of improving the delineation of skylines, also referred to as skyline detection, in occluded and challenging environments where existing skyline delineation methods may struggle or fail. Delineated skylines can be used in monocular camera localization methods by comparing delineated skylines to digital elevation model data to estimate a position based on known terrain. READ MORE

  3. 2. Methods for assessing the consistency of the New National Height Model

    University essay from KTH/Fastigheter och byggande

    Author : Sandra Rangelova; [2021]
    Keywords : DEM; LiDAR; Air-borne LiDAR; strip adjustment; quality control; DEM; LiDAR; Luftburna LiDAR; bandjustering; kvalitetskontroll;

    Abstract : Digital Elevation Models (DEM) are a simple representation of the Earth’s surface. DEMs play an important role in the field of remote sensing and GIS and are used as basis for mapping and analysis for a vest majority of scientific applications. READ MORE

  4. 3. Investigating Sand Dune Location, Orientation and Geomorphometry Through GEOBIA-Based Mapping: A Case Study in Northern Sweden

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Melanie Stammler; [2020]
    Keywords : sand dunes; geomorphological mapping; object-based image analysis; landscape development; sanddyner; geomorfologisk kartläggning; geografisk objektbaserad bildanalys; landskapsutveckling;

    Abstract : Climate change has repeatedly been framed as the defining issue of the Anthropocene and with the Arctic changing at unpreceded speed need is high for a profound understanding of the Northern Swedish landscape. Northern Swedish aeolian sand dunes have been impacted by climatic changes throughout time. READ MORE

  5. 4. Size optimization of constructed wetlands for phosphorus retention in agricultural areas

    University essay from SLU/Dept. of Soil and Environment

    Author : Anna Ferguson; [2019]
    Keywords : hydraulic load; digital elevation models; catchment;

    Abstract : Eutrophication is one of the main threats to the Baltic Sea and Sweden is not expected to reach its environmental target of No Eutrophication by 2020. Phosphorus (P) lossfrom terrestrial systems is one of the principal causes of eutrophication in water recipients and the need to decrease P loss from agricultural land is pressing. READ MORE

  6. 5. Utvärdering av en markvattenmodells förmåga att estimera markfuktighet och bärighet

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Joshua Johansson; [2017]
    Keywords : bärighet; grundförhållande; körskador; markfuktighet; markfuktighetskartor; markvattenmodeller; bearing capacity; ground conditions; rutting; soil moisture; soil moisture maps; soil water models;

    Abstract : Vattendrag och markvatten påverkar en betydande del av Sveriges skogsmark och transporterar material och näringsämnen i landskapet. Körskador och kompaktion av marken som kan uppstå vid skogliga åtgärder där tunga maskiner används kan påverka den lokala hydrologin. READ MORE