Extracting terrain feature lines from multi-scale DEM based on lifting scheme

2011 ◽  
Author(s):  
Zuqiao Yang ◽  
Guimei Liu ◽  
Zhonglin He
Keyword(s):  
Lifting Scheme ◽  
Multi Scale ◽  
Feature Lines ◽  
Terrain Feature

Progressive Contours Simplification Approach Constrained by Terrain Feature

2014 ◽  
Vol 668-669 ◽  
pp. 1162-1165
Author(s):  
Zu Qiao Yang ◽  
Hong Sheng Li
Keyword(s):  
Experimental Results ◽  
Feature Points ◽  
Control Variables ◽  
Feature Lines ◽  
Terrain Feature

To maintain terrain details during contour group simplification, a progressive simplification approach is proposed. First, terrain feature points and lines are extracted from contours. Second, both the extracted terrain feature points and lines are taken as constraints and quantified as control variables. At last with the idea of progressive graphics simplification, the non-feature points, feature points, feature lines and their associated curves on contours are selected or deleted progressively to realize dynamic simplification of contours. Experimental results show that this approach can effectively improve the intellectualized degree of contours simplification.

A Proposal of 3D Feature based on Occupancy of Point Cloud in Multi-Scale Shell Region

2016 ◽  
Vol 136 (8) ◽  
pp. 1078-1084
Author(s):  
Shoichi Takei ◽  
Shuichi Akizuki ◽  
Manabu Hashimoto
Keyword(s):  
Point Cloud ◽  
Multi Scale ◽  
Feature Based ◽  
Shell Region

RECONSTRUCTION OF NON-STATIONARY COMPLEX SPATIAL STRUCTURES BY A NOVEL FILTER-BASED MULTI SCALE MPS ALGORITHM

2014 ◽  
Vol 2014 (2) ◽  
pp. 60-71
Author(s):  
Peyman Mohammadmoradi ◽  
◽  
Mohammad Rasaeii ◽  
Keyword(s):  
Spatial Structures ◽  
Multi Scale
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