Extraction of urban network from high-spatial-resolution imagery using multiresolution analysis and wavelet transform

Isabelle Couloigner; Thierry Ranchin

doi:10.1117/12.328128

19 October 1998 Extraction of urban network from high-spatial-resolution imagery using multiresolution analysis and wavelet transform

Isabelle Couloigner, Thierry Ranchin

Author Affiliations +

Proceedings Volume 3458, Wavelet Applications in Signal and Imaging Processing VI; (1998) https://doi.org/10.1117/12.328128
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

This paper presents a new method to extract, semi- automatically, quadrangular urban road network from high spatial resolution imagery. A quadrangular network is generally composed of different classes of streets in a hierarchical system. The developed method is based both on the multiresolution analysis and on the wavelet transform. The multiresolution analysis allows a multiscale analysis of images and thus the extraction of the streets in a class-by- class way. The wavelet transform enables the modeling of information at different characteristic scales. In the problem, it allows the extraction of the topography of streets. These two mathematical tools are combined in the `a trous' algorithm. The application of this algorithm to images of urban areas has been used to develop semi- automatic multiresolution processing. This method will help photo-interpreters in their cartographic works by a partial automation of tasks.

Citation Download Citation

Isabelle Couloigner and Thierry Ranchin "Extraction of urban network from high-spatial-resolution imagery using multiresolution analysis and wavelet transform", Proc. SPIE 3458, Wavelet Applications in Signal and Imaging Processing VI, (19 October 1998); https://doi.org/10.1117/12.328128

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