Browsing by Author "Kahraman, Metin"

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    Master Thesis
    Automatic Matching of Aerial Coastline Images With Map Data
    (Izmir Institute of Technology, 2005) Kahraman, Metin; Gümüştekin, Şevket
    Matching aerial images with map data is an important task in remote sensing applications such as georeferencing, cartography and autonomous navigation of aerial vehicles. The most distinctive image features that can be used to accomplish this task are due to the unique structures of different coastline segments. In recent years several studies are conducted for detecting coastlines and matching them to map data. The results reported by these studies are far from being a complete solution, having weak points such as poor noise sensitivity, need for user interaction, dependence to a fixed scale and orientation.In this thesis, a two-step procedure involving automatic multiresolution coastline extraction and coastline matching using dynamic programming have been proposed. In the proposed coastline extraction method, sea and land textures are segmented by using cooccurrence and histogram features of the wavelet image representation. The coastlines are identified as the boundaries of the sea regions. For the coastline matching, shape descriptors are investigated and a shape matching method using dynamic programming is adapted. Proposed automatic coastline extraction and coastline matching methods are tested using a vector map of the Aegean coast of Turkey.
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    Conference Object
    Citation - Scopus: 1
    Hava Fotoğraflarından Deniz Kıyılarının Belirlenmesi
    (Institute of Electrical and Electronics Engineers Inc., 2006) Kahraman, Metin; Gümüştekin, Şevket
    The unique structures of different coastline segments provide distinctive image features for several applications such as oceanography, georeferencing, cartography and autonomous navigation. In this paper, a procedure involving automatic multiresolution coastline extraction is described. Using this method, sea and land textures are segmented utilizing cooccurrence and histogram features of wavelet image representation. The coastlines are identified as the boundaries of the sea regions.
  • Thumbnail Image
    Conference Object
    Matching Aerial Coastline Images With Map Data Using Dynamic Programming
    (Institute of Electrical and Electronics Engineers Inc., 2006) Kahraman, Metin; Gümüştekin, Şevket
    Matching aerial images with map data is an important task in several remote sensing applications such as autonomous navigation, cartography, oceanography. The unique and distinctive shapes of coastlines can be effectively utilized to solve this problem. In this study a completely automatic scheme is proposed to detect coastlines using multiresolution texture analysis and to match the detected coastlines to a map database. A shape matching method using dynamic programming is used and tested on the satellite images of the western coast of Turkey.