[1]WEI Zhou,LI Guanglu,HOU Lei,et al.Effect of Rarefied or Encrypted Point Cloud Data on the Analysis of Micro Topography Observation[J].Research of Soil and Water Conservation,2016,23(03):283-286.
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Effect of Rarefied or Encrypted Point Cloud Data on the Analysis of Micro Topography Observation
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
23
Number of periods:
2016 03
Page number:
283-286
Column:
Public date:
2016-06-28
- Title:
- Effect of Rarefied or Encrypted Point Cloud Data on the Analysis of Micro Topography Observation
- Keywords:
- micro topography; curvature; surface roughness; slope
- CLC:
- P951
- DOI:
- -
- Abstract:
- We adopted the point cloud data of deep tillage terrain and bare slope terrain in different observation scale for vacuating and encrypting. The influence on micro topography observation was evaluated through selecting three intuitive indicators of surface ground curvature, aspect and surface roughness. The result shows that vacuating and encrypting have great influence on the large wavy terrain but have little influence on the small wavy terrain such as bare slope. Little change of aspect by vacuating and encrypting 5 mm and 10 mm data is contributed by the observation scale for the influence on the surface generalization situation. Vacuating 1 mm scale data has regular influence on surface roughness.5 mm data will cause complex changes with regard to complex terrain surface roughness through encrypting and vacuating.10 mm data will cause complex changes to deep tillage terrain through encrypting and vacuating, but the changes of bare slope are relatively regular.
- References:
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