Commit bcf10242 authored by Emmanuel Christophe's avatar Emmanuel Christophe
Browse files

ajout description

parent f27793b8
......@@ -43,17 +43,17 @@ namespace otb
* \class RoadExtractionFilter
* \brief This class performs the extraction of roads from an image.
*
* This composite filter implement a fast and robust road extraction
* This composite filter implements a fast and robust road extraction
* for high resolution satellite images. The algorithm uses all spectral
* bands based on the spectral angle with a reference pixel. The line
* detection done using a Gaussian gradient with a scalar product to find
* bands based on the spectral angle with a reference pixel. Then, the line
* detection is done using a Gaussian gradient with a scalar product to find
* the road directions. Finally, extracted roads are vectorized and
* processed to improve the results: remove some occultations and false
* processed to improve the results removing some occultations and false
* detections.
*
* This filter is fast as the detection typically takes 3 seconds for a
* This filter is fast, as the detection typically takes 3 seconds for a
* 1000 \f$ \times \f$ 1000 images with four spectral bands. Results can be
* used as initialization for more complex algorithms.
* used as an initialization for more complex algorithms.
*
* \sa SpectralAngleDistanceImageFilter
* \sa itk::SqrtImageFilter
......
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