3D line segment can be regarded as one of the most useful features in constructing 3D model. In this context, this paper presents a new 3D line segment extraction method by using line fitting of elevation data on 2D line coordinates of ortho-image. In order to use elevation in line fitting, the elevation itself should be reliable. To measure the reliability of elevation, in this paper, we employ the concept of self-consistency. We test the effectiveness of the proposed method with a quantitative accuracy analysis using synthetic images generated from Avenches data set of Ascona aerial images. Experimental results indicate that our method generates 3D line segments almost 10 times more accurate than raw elevations obtained by area-based method.


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    Title :

    Extraction of 3D Line Segment Using Digital Elevation Data


    Contributors:


    Publication date :

    2008-05-01


    Size :

    592955 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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