LEGION Based Segmentation and Road Extraction from Satellite Imagery

Bibliographic Details
Main Author:	Yuan, Jiangye
Language:	English
Published:	The Ohio State University / OhioLINK 2009
Subjects:	Computer Science
Online Access:	http://rave.ohiolink.edu/etdc/view?acc_num=osu1253113866

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spelling	ndltd-OhioLink-oai-etd.ohiolink.edu-osu12531138662021-08-03T05:57:06Z LEGION Based Segmentation and Road Extraction from Satellite Imagery Yuan, Jiangye Computer Science This thesis investigates automatic road extraction from satellite imagery based on locally excitatory globally inhibitory oscillator network (LEGION), which is introduced as a general framework for object segmentation. We extend the existing two-dimensional LEGION image segmentation algorithm to process multispectral and hyperspectral images. Road extraction from satellite images has been extensively studied. We develop a new automatic road extraction method using LEGION networks. An image is first segmented by LEGION. Then, medial axis transform is performed on the resulting segments, and the medial axis points corresponding to potential road regions are selected. A LEGION network with alignment-dependent connections is proposed to group well-aligned medial axis points, and generate extracted roads. Experiments on synthetic and real images show that the proposed method can effectively carry out road extraction from different satellite images. Comparisons with the existing methods demonstrate that the proposed method produces more accurate extraction results. 2009-09-30 English text The Ohio State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=osu1253113866 http://rave.ohiolink.edu/etdc/view?acc_num=osu1253113866 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection	NDLTD
language	English
sources	NDLTD
topic	Computer Science
spellingShingle	Computer Science Yuan, Jiangye LEGION Based Segmentation and Road Extraction from Satellite Imagery
author	Yuan, Jiangye
author_facet	Yuan, Jiangye
author_sort	Yuan, Jiangye
title	LEGION Based Segmentation and Road Extraction from Satellite Imagery
title_short	LEGION Based Segmentation and Road Extraction from Satellite Imagery
title_full	LEGION Based Segmentation and Road Extraction from Satellite Imagery
title_fullStr	LEGION Based Segmentation and Road Extraction from Satellite Imagery
title_full_unstemmed	LEGION Based Segmentation and Road Extraction from Satellite Imagery
title_sort	legion based segmentation and road extraction from satellite imagery
publisher	The Ohio State University / OhioLINK
publishDate	2009
url	http://rave.ohiolink.edu/etdc/view?acc_num=osu1253113866
work_keys_str_mv	AT yuanjiangye legionbasedsegmentationandroadextractionfromsatelliteimagery
_version_	1719428355057516544

LEGION Based Segmentation and Road Extraction from Satellite Imagery

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