Sökning: "image differencing"

Visar resultat 6 - 10 av 12 uppsatser innehållade orden image differencing.

  1. 6. Mapping Landcover/Landuse and Coastline Change in the Eastern Mekong Delta (Viet Nam) from 1989 to 2002 using Remote Sensing

    Master-uppsats, KTH/Samhällsplanering och miljö

    Författare :ARFAN SOHAIL; [2012]
    Nyckelord :REMOTE SENSING; GIS; LANDCOVER LANDUSE CHANGE; ACCURACY ASSESSMENT; CHANGE DETECTION; COASTLINE CHANGE; HISTOGRAM; IMAGE THRESHOLD; BAND RATIO; MEKONG RIVER DELTA; VIETNAM; MAPPING; IMAGE DIFFERENCING; CLASSIFICATION; MAXIMUM LIKELIHOOD; POST CLASSIFICATION COMPARISON; SEA LEVEL RISE; OVERALL ACCURACY; LANDSAT TM; ETM ; PRE-PROCESSING; RADIOMETRIC NORMALIZATION; NDVI; NDSI; NDWI; IMAGE MASK;

    Sammanfattning : There has been rapid change in the landcover/landuse in the Mekong delta, Viet Nam. The landcover/landuse has changed very fast due to intense population pressure, agriculture/aquaculture farming and timber collection in the coastal areas of the delta. LÄS MER

  3. 7. Image Compression by Using Haar Wavelet Transform and Singualr Value Decomposition

    Master-uppsats, Institutionen för datavetenskap, fysik och matematik, DFM

    Författare :Zunera Idrees; Eliza Hashemiaghjekandi; [2011]
    Nyckelord :Multi resolution analysis; Haar wavelet transformation MRA ; Average and difference method; Singular value decomposition SVD .;

    Sammanfattning : The rise in digital technology has also rose the use of digital images. The digital imagesrequire much storage space. The compression techniques are used to compress the dataso that it takes up less storage space. In this regard wavelets play important role. LÄS MER

  4. 8. An early fire detection system through registration and analysis of waste station IR-images

    Master-uppsats, Datorseende

    Författare :Rikard Söderström; [2011]
    Nyckelord :KLT; Track-Retrack; RANSAC; MSER; ROC; Registration; Image Processing;

    Sammanfattning : In this thesis, an investigation was performed to find ways of differencing between firesand vehicles at waste stations in hope of removing vehicles as a source of error duringearly fire detection. The existing system makes use of a heat camera, which rotates in 48different angles (also known as zones) in a fixed position. LÄS MER

  5. 9. Multitemporal Satellite Images for Urban Change Detection

    Kandidat-uppsats, KTH/Geodesi och geoinformatik

    Författare :Linda Fröjse; [2011]
    Nyckelord :LANDSAT-7; HJ-1A; remote sensing; Shanghai; image differencing; post-classification comparison; LANDSAT-7; HJ-1A; fjärranalys; Shanghai; bildalgebra; postklassificeringsjämförelse;

    Sammanfattning : The objective of this research is to detect change in urban areas using two satellite images (from 2001 and 2010) covering the city of Shanghai, China. These satellite images were acquired by Landsat-7 and HJ-1B, two satellites with different sensors. LÄS MER

  7. 10. Geospatial monitoring and evaluation of UNESCO world heritage forest areas in the Tropics

    Magister-uppsats, SLU/Dept. of Forest Resource Management

    Författare :Kumar Mukesh; [2009]
    Nyckelord :NDVI; Landsat; Image differencing; supervised ;

    Sammanfattning : This Study aimed at providing a better understanding for monitoring the status, change and threats to UNESCO world heritage areas that are present in the tropical forest. Three change detection techniques were tested using Landsat images for detecting area of changes in the region of the Rio Platano biosphere reserve, a tropical rain forest in Honduras. LÄS MER