One New Method of Bedrock (island) Coastline Extraction

doi:10.12024/jsou.20140901184

Home > Archive>Volume 24, Issue 6, 2015 >975-981. DOI:10.12024/jsou.20140901184

One New Method of Bedrock (island) Coastline Extraction
DOI:
                        10.12024/jsou.20140901184
                    
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Affiliation:College of Marine Sciences,Shanghai Ocean University,Shanghai,China,College of Marine Sciences,Shanghai Ocean University,Shanghai,China,College of Marine Sciences,Shanghai Ocean University,Shanghai,China,College of Marine Sciences,Shanghai Ocean University,Shanghai,China,College of Marine Sciences,Shanghai Ocean University,Shanghai,China,The First Institute of Oceanography, SOA
Clc Number:TP701
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Abstract:

Fast accurately coastline extraction using remote sensing method, is one of the important content for marine science research, topographic map surveying, hydrographic and coast & island investigation. LiDAR is becoming one of the most effective remote sensing approach, which could provide 3D surface data of coast and island with high accuracy and speed.First the LAS format of LiDAR data and the data processing flow are analyzed. Based on the average high tide level and the reflection intensity, the LiDAR points cloud data are filtered. Then, the Alpha Shapes algorithm is used in further filtering of the points data and the automatical extracting of the island coastline. The comparison with the high resolution image(0.5m)proves the Alpha Shapes algorithm is precision, effective and suitable for automatically coastline extracting based on LiDAR data.

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沈蔚,王家为,王林振,朱瑞芳,朱卫东,栾奎峰,杨龙.一种基岩海(岛)岸线自动提取新方法[J].上海海洋大学学报,2015,24(6):975-981.
SHEN Wei, WANG Jiawei, WANG Linzhen, ZHU RuiFang, ZHU Weidong, LUAN Kuifeng, YANG Long. One New Method of Bedrock (island) Coastline Extraction[J]. Journal of Shanghai Ocean University,2015,24(6):975-981.

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Received:January 17,2015
Revised:February 16,2015
Adopted:September 30,2015
Online: December 01,2015
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