scholarly journals Multi-Scale Analysis of the Relationship between Land Subsidence and Buildings: A Case Study in an Eastern Beijing Urban Area Using the PS-InSAR Technique

2018 ◽  
Vol 10 (7) ◽  
pp. 1006 ◽  
Author(s):  
Qin Yang ◽  
Yinghai Ke ◽  
Dongyi Zhang ◽  
Beibei Chen ◽  
Huili Gong ◽  
...  
Keyword(s):  
Urban Area ◽  
Land Subsidence ◽  
Scale Analysis ◽  
Multi Scale ◽  
The Relationship ◽  
Multi Scale Analysis

scholarly journals GROUND FILTERING LiDAR DATA BASED ON MULTI-SCALE ANALYSIS OF HEIGHT DIFFERENCE THRESHOLD

2017 ◽  
Vol XLII-4/W4 ◽  
pp. 225-229 ◽  
Author(s):  
P. Rashidi ◽  
H. Rastiveis
Keyword(s):  
Urban Area ◽  
Point Clouds ◽  
Lidar Data ◽  
Difference Threshold ◽  
Scale Analysis ◽  
Height Difference ◽  
Multi Scale ◽  
Rural And Urban ◽  
Rural And Urban Area ◽  
Multi Scale Analysis

Separating point clouds into ground and non-ground points is a necessary step to generate digital terrain model (DTM) from LiDAR dataset. In this research, a new method based on multi-scale analysis of height difference threshold is proposed for ground filtering of LiDAR data. The proposed method utilizes three windows with different sizes in small, average and large to cover the entire LiDAR point clouds, then with a height difference threshold, point clouds can be separated to ground and non-ground in each local window. Meanwhile, the best threshold values for size of windows are considered based on physical characteristics of the ground surface and size of objects. Also, the minimum of height of object in each window selected as height difference threshold. In order to evaluate the performance of the proposed algorithm, two datasets in rural and urban area were applied. The overall accuracy in rural and urban area was 96.06% and 94.88% respectively. These results of the filtering showed that the proposed method can successfully filters non-ground points from LiDAR point clouds despite of the data area.

Multi-scale analysis of settlement-induced building damage using damage surveys and DInSAR data: A case study in The Netherlands

2017 ◽  
Vol 218 ◽  
pp. 117-133 ◽  
Author(s):  
Dario Peduto ◽  
Gianfranco Nicodemo ◽  
Jos Maccabiani ◽  
Settimio Ferlisi
Keyword(s):  
The Netherlands ◽  
Building Damage ◽  
Scale Analysis ◽  
Multi Scale ◽  
Multi Scale Analysis

scholarly journals Multi-scale analysis on the coupling coordination degree of production-living-ecological spaces in cities: A case study of Zhengzhou City

资源科学 ◽  
2021 ◽  
Vol 43 (5) ◽  
pp. 944-953
Author(s):  
Hongbo ZHAO ◽  
Jiachen WEI ◽  
Dongqi SUN ◽  
Shuang WANG ◽  
Yaxin LIU ◽  
...  
Keyword(s):  
Scale Analysis ◽  
Multi Scale ◽  
Multi Scale Analysis ◽  
Coordination Degree
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