Semi-Automatic Extraction Method for Low Contrast Road Based on Gabor Filter and Simulated Annealing

Abstract:

High-resolution satellite remote sensing image are mostly used for accurate updating of GIS data. As the primary GIS data, urban roads on the image show the rich geometric features and radiation characteristics, that edge detection and grouping becoming an important way to solve the road extraction. However, edge elements obtained from images are always discontinuous for interference of noise and weak contrast between road and background. What more, vehicles, plant, buildings and shadow blocking results in weak grouping relation of elements. In processing, insignificant candidate road may be weeded out as noise and lead to failure road extraction. This paper presents a semi-automated extraction method for low contrast road basing on statistical grouping of orientation texture feature. Multi-direction and multi-scale Gabor filters are employed to detect directions of road texture. Then same direction pixels are grouped under constraining of rectangle template and generate road base elements. Finally, simulated annealing algorithm is used to optimize elements connection. Experiment results show that proposed method was effective in accurate extraction of low contrast road.

• Periodical: Advanced Materials Research (Volumes 989-994)
• Pages: 3644-3648
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.989-994.3644
• Online since: July 2014
• Authors: Guang Chen, Hai Gang Sui*, Liang Dong, Hua Sun
• Keywords: Gabor Filter, Low Contrast Road, Phase Grouping, Remote Sensing, Road Extraction, Simulated Annealing (SA)

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