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| jgg
2013 33 (3):
111-115
ISSN: 0412-1961 CN: 21-1139/TG
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| EXTRACTION OF RIDGE LINES AND VALLEY LINES FROMMOUNTAINOUS LIDAR GROUND POINT CLOUD |
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1)Institute of Surveying and Spatial Information，Chang’an University，Xi’an 710054
2)China J K Institute of Engineering Investigation and Design，Xi’an 710043 |
| Received: 2012-09-24 Revised: null Online: 2013-06-18 |
Supporting info
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