Point cloud data analysis

Topic 4B: GIS Analytics

Outline

• Characteristics of UAS SfM and lidar-based point cloud data
• Point cloud data representation and formats
• Point cloud data processing, visualization, and analysis
• Bare earth point extraction
• Working with classified point clouds
• Computing DEM and topographic analysis
• Voxel-based analysis and vertical profiles

Lecture

• Lecture slides <!– - Lecture Recording: Fall 2024 (NCSU Only)
• In-Class Recording: Fall 2024 (NCSU Only) –>

Supplemental materials

• Processing point clouds in GRASS GIS, workshop presented at FOSS4G conference in Boston in 2017 (start with the section “Binning the point cloud”).

• USGS 3DEP Data View

• LAS specification v1.4-R13, July 2013

• Lidar and INS

• Past Lecture recordings:

  • Properties
  • Processing
  • DEMs and voxel models

Assignment & Homework

Assignment 4B