Abstract:
The contours of polygons generated by the image segmentation technique show jagged outlines and a large number of redundant points. Therefore, the original segmentation c...Show MoreMetadata
Abstract:
The contours of polygons generated by the image segmentation technique show jagged outlines and a large number of redundant points. Therefore, the original segmentation contours hardly conform to geographic information system (GIS) data-producing standards without generalization. With the complexity of high spatial resolution remote sensing imagery data, with variable sizes of geographic features and their different distributive patterns, it is hard to build a global contour optimization parameter model to guide parameter settings in large regions effectively. Furthermore, it is also difficult to automatically give a unique set of parameters per object simultaneously. In order to meet the actual requirements of GIS data production, we present an adaptively improved algorithm based on the Douglas-Peucker (DP) algorithm, named AIDP, that integrates the criteria of vertical and radial distance restriction, and design a corresponding parameter-adaptive acquisition method. The proposed AIDP method is evaluated by comparing it with the most widely used DP algorithm implemented in the ArcGIS through visual inspection, quantitative measurements, and applications to water body contours. The experimental results show that AIDP can not only acquire generalization parameters automatically but also greatly speed up the data processing workflow with acceptable results.
Published in: IEEE Transactions on Geoscience and Remote Sensing ( Volume: 52, Issue: 2, February 2014)
Beijing University of Civil Engineering, School of Surveying and Mapping Engineering, Beijing, China
Jianhua Liu received the B.S. degree in geographical information systems from Northwestern University, Xi'an, China, and the Ph.D. degree in communication and information systems from Fuzhou University, Fuzhou, China, in 2003 and 2011 respectively.
He was an Assistant Teacher with the College of Land Resource Management, China Normal West University, Nanchong, China, from 2003 to 2006, and assumed the undergraduate course ...Show More
Jianhua Liu received the B.S. degree in geographical information systems from Northwestern University, Xi'an, China, and the Ph.D. degree in communication and information systems from Fuzhou University, Fuzhou, China, in 2003 and 2011 respectively.
He was an Assistant Teacher with the College of Land Resource Management, China Normal West University, Nanchong, China, from 2003 to 2006, and assumed the undergraduate course ...View more
Chinese Academy of Sciences, Institute of Software, Beijing, China
Jinfang Zhang photograph and biography not available at the time of publication.
Jinfang Zhang photograph and biography not available at the time of publication.View more
Chinese Academy of Sciences, Institute of Software, Beijing, China
Fangjiang Xu photograph and biography not available at the time of publication.
Fangjiang Xu photograph and biography not available at the time of publication.View more
Chinese Academy of Sciences, Institute of Software, Beijing, China
Zhijian Huang photograph and biography not available at the time of publication.
Zhijian Huang photograph and biography not available at the time of publication.View more
Contents Beijing University of Civil Engineering, School of Surveying and Mapping Engineering, Beijing, China
Jianhua Liu received the B.S. degree in geographical information systems from Northwestern University, Xi'an, China, and the Ph.D. degree in communication and information systems from Fuzhou University, Fuzhou, China, in 2003 and 2011 respectively.
He was an Assistant Teacher with the College of Land Resource Management, China Normal West University, Nanchong, China, from 2003 to 2006, and assumed the undergraduate course of Geographical Information System. From 2011 to 2012, he was an Assistant Researcher with the State Key Laboratory of Integrated Information System Technology, Institute of Software, Chinese Academy of Sciences, Beijing, China. He is currently a Lecturer with the Beijing University of Civil Engineering and Key Laboratory for Urban Geomatics of National Administration of Surveying, Mapping and Geoinformation. His current research interests include spatial data mining, spatial analysis, RS image analysis and recognition. In particular, his research interests were related to GEOBIA in very high spatial resolution imagery and LiDAR.
Jianhua Liu received the B.S. degree in geographical information systems from Northwestern University, Xi'an, China, and the Ph.D. degree in communication and information systems from Fuzhou University, Fuzhou, China, in 2003 and 2011 respectively.
He was an Assistant Teacher with the College of Land Resource Management, China Normal West University, Nanchong, China, from 2003 to 2006, and assumed the undergraduate course of Geographical Information System. From 2011 to 2012, he was an Assistant Researcher with the State Key Laboratory of Integrated Information System Technology, Institute of Software, Chinese Academy of Sciences, Beijing, China. He is currently a Lecturer with the Beijing University of Civil Engineering and Key Laboratory for Urban Geomatics of National Administration of Surveying, Mapping and Geoinformation. His current research interests include spatial data mining, spatial analysis, RS image analysis and recognition. In particular, his research interests were related to GEOBIA in very high spatial resolution imagery and LiDAR.View more
Chinese Academy of Sciences, Institute of Software, Beijing, China
Jinfang Zhang photograph and biography not available at the time of publication.
Jinfang Zhang photograph and biography not available at the time of publication.View more
Chinese Academy of Sciences, Institute of Software, Beijing, China
Fangjiang Xu photograph and biography not available at the time of publication.
Fangjiang Xu photograph and biography not available at the time of publication.View more
Chinese Academy of Sciences, Institute of Software, Beijing, China
Zhijian Huang photograph and biography not available at the time of publication.
Zhijian Huang photograph and biography not available at the time of publication.View more
