Sökning: "land classes"

Visar resultat 1 - 5 av 32 avhandlingar innehållade orden land classes.

  1. 1. Inferring Land Use from Remote Sensing Imagery : A context-based approach

    Författare :Michael Meinild Nielsen; Bo Malmberg; Anders Wästfelt; Douglas A. Stow; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; land use; remote sensing; urban remote sensing; image analysis; segmentation; spatial context; land cover; land cover configuration; farming types; bark beetle; dead trees; forest inventory; kulturgeografi; Human Geography;

    Sammanfattning : This doctoral thesis investigates the potential of classification methods based on spatial context to infer specific forms of land use from remote sensing data. The problem is that some types of land use are characterized by a complex configuration of land covers that traditional per-pixel based methods have problems classifying due to spectral heterogeneity. LÄS MER

  3. 2. Jorden åt folket : nationalföreningen mot emigrationen 1907-1925

    Författare :Anna Lindkvist; Tom Ericsson; Ann-Katrin Hatje; Torbjörn Nilsson; Umeå universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; History; emigration; anti-emigration; re-immigration; inner colonization; internal colonization; smallholdings; allotments; land distribution; own-your-own-home companies; corporativism; cooperativism; radical conservatism; right-wing radicalism; siedlung; Historia; historia; History;

    Sammanfattning : This thesis deals with the National Society Against Emigration (Sw.Nationalföreningen mot emigrationen) – referred to as the NE – and its radical right-wing leader Adrian Molin. Th e NE was founded in 1907 in order to stem the tide of emigration from Sweden and facilitate re-immigration by providing jobs and accomodation. LÄS MER

  4. 3. Applications of spaceborne SAR interferometry

    Författare :Patrik Dammert; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; shore-fast sea ice displacements; estimation techniques; SAR interferometry; classification; DEM; coherence; forest; bias; land classes; bole volume; forest modelling;

    Sammanfattning : .... LÄS MER

  5. 4. Urban Land-cover Mapping with High-resolution Spaceborne SAR Data

    Författare :Hongtao Hu; Yifang Ban; Johan Fransson; KTH; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; High-resolution; RADARSAT-1 SAR; RADARSAT-2 SAR; Urban Land Cover; Object-based Classification; Neural Network; Support Vector Machines.; Remote sensing; Fjärranalys;

    Sammanfattning : Urban areas around the world are changing constantly and therefore it is necessary to update urban land cover maps regularly. Remote sensing techniques have been used to monitor changes and update land-use/land-cover information in urban areas for decades. Optical imaging systems have received most of the attention in urban studies. LÄS MER

  7. 5. Multitemporal Spaceborne Polarimetric SAR Data for Urban Land Cover Mapping

    Författare :Xin Niu; Yifang Ban; Paolo Gamba; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; RADARSAT-2; spaceborne; polarimetric SAR; urban land cover; classification; Information technology; Informationsteknik;

    Sammanfattning : Urban represents one of the most dynamic areas in the global change context. To support rational policies for sustainable urban development, remote sensing technologies such as Synthetic Aperture Radar (SAR) enjoy increasing popularity for collecting up-to-date and reliable information such as urban land cover/land-use. LÄS MER