Enhancing Textured Digital Elevation Models Using Photographs

In proceedings of The Fourth International Symposium on 3D Data Processing, Visualization and Transmission (3DPVT'08), pages 261-268, Juni 2008
Präsentiert: The Fourth International Symposium on 3D Data Processing, Visualization and Transmission (3DPVT'08)
 

Abstract

We present a method for enhancing the visual quality of existing digital elevation models textured with orthophotos, using a sparse set of unordered, high resolution photographs. After an initial manual selection of correspondence points, we automatically register the input photographs to the given terrain data set using robust imagebased modeling techniques. To combine the geo-registered images on the terrain surface, we propose a compositing algorithm that ensures smooth transitions between the images while at the same time preserving the fine details. The resulting textures are inserted into the quadtree representation of a terrain rendering engine to allow an efficient realtime visualization. We demonstrate our method on an HRSC terrain data set and a collection of high resolution photos of Turtmann valley in Switzerland.

Received Best Student Paper award

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Bibtex

@INPROCEEDINGS{schneider-2008-enhancing,
      author = {Schneider, Martin and Klein, Reinhard},
       pages = {261--268},
       title = {Enhancing Textured Digital Elevation Models Using Photographs},
   booktitle = {The Fourth International Symposium on 3D Data Processing, Visualization and Transmission (3DPVT'08)},
        year = {2008},
       month = jun,
    abstract = {We present a method for enhancing the visual quality
                of existing digital elevation models textured with orthophotos,
                using a sparse set of unordered, high resolution
                photographs. After an initial manual selection of correspondence
                points, we automatically register the input photographs
                to the given terrain data set using robust imagebased
                modeling techniques. To combine the geo-registered
                images on the terrain surface, we propose a compositing
                algorithm that ensures smooth transitions between the images
                while at the same time preserving the fine details. The
                resulting textures are inserted into the quadtree representation
                of a terrain rendering engine to allow an efficient realtime
                visualization. We demonstrate our method on an HRSC
                terrain data set and a collection of high resolution photos
                of Turtmann valley in Switzerland.},
  conference = {The Fourth International Symposium on 3D Data Processing, Visualization and Transmission
                (3DPVT'08)}
}