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Effect of Point Cloud Data Simplification and Encryption on Micro-Topography Data Analysis

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  • WEI, Zhou
  • WEN, Pengfei
  • JIANG, Jiong
  • JI, Xian
  • HE, Zhenjia

Abstract

Simplification and encryption are performed on the point cloud data concerning high-relief (20 cm tillage) and low-relief (raking bare slope) terrain on a different scale of observation. We select three indicators (surface curvature, slope aspect and surface roughness) to evaluate the effect of simplification and encryption on micro-topography data analysis. The results show that simplification and encryption have a significant impact on the curvature of high-relief terrain, but have no significant impact on low-relief terrain. The slope aspect change is not significant after 5, 10 mm data simplification and encryption; 1 mm simplification has a regular impact on surface roughness; 5 mm encryption and simplification have a complex impact on high-relief terrain; 10 mm encryption has a complex impact on high-relief terrain roughness change but a regular impact on bare slope change.

Suggested Citation

  • WEI, Zhou & WEN, Pengfei & JIANG, Jiong & JI, Xian & HE, Zhenjia, 2016. "Effect of Point Cloud Data Simplification and Encryption on Micro-Topography Data Analysis," Asian Agricultural Research, USA-China Science and Culture Media Corporation, vol. 8(10), pages 1-4, October.
    • Handle: RePEc:ags:asagre:251875
    DOI: 10.22004/ag.econ.251875
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    Agribusiness;

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