Road extraction from SAR images by using a graphical sketch of road

Dalila Cherifi; Florence Tupin; Michel Roux; Henri Maitre

doi:10.1117/12.463067

7 March 2003 Road extraction from SAR images by using a graphical sketch of road

Dalila Cherifi, Florence Tupin, Michel Roux, Henri Maitre

Proceedings Volume 4883, SAR Image Analysis, Modeling, and Techniques V; (2003) https://doi.org/10.1117/12.463067
Event: International Symposium on Remote Sensing, 2002, Crete, Greece

Abstract

The subject of this communication is the detection of roads on SAR images starting from a user-drawn graphical sketch. This sketch is considered as a road model, and the main contribution of this communication is to incorporate this model in a yet-existing blind road detection method to improve the quality and reliability of the detection. The method combines both local and global criteria for raod extraction. It consists of mainly two parts. First local information is extracted by applying a low-level operator, based on a line detector taking to account the statistical properties of speckle in SAR images. In the second step, road detection is performed by selecting the best road in a graph composed of all the detected segments and all possible connections between them. To demonstrate the contribution of the use of a model in the road detection, we first introduce an "exact" model of hte road (extracted for instance from a road map), in order to validate the method. Then the method is applied with an un-precise model (both in form and position). The obtained results from different SAR images are presented and evaluated with objective criteria.

Citation Download Citation

Dalila Cherifi, Florence Tupin, Michel Roux, and Henri Maitre "Road extraction from SAR images by using a graphical sketch of road", Proc. SPIE 4883, SAR Image Analysis, Modeling, and Techniques V, (7 March 2003); https://doi.org/10.1117/12.463067

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KEYWORDS

Roads

Synthetic aperture radar

Image segmentation

Sensors

Data modeling

Detection and tracking algorithms

Distance measurement

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