Tutorial: The DEM Breakline and Differencing Analysis Tool; Step-by-Step Workflows and Procedures for Effective Gridded DEM Analysis

Abstract

The DEM Breakline and Differencing Analysis Tool is the result of a multi-year research effort in the analysis of digital elevation models (DEMs) and the extraction of features associated with breaklines identified on the DEM by numerical analysis. Developed in the ENVI/IDL image processing application, the tool is designed to serve as an aid to research in the investigation of DEMs by taking advantage of local variation in the height. A set of specific workflow exercises is described as applied to a diverse set of four sample DEMs. These workflows instruct the user in applying the tool to extract and analyze features associated with terrain, vegetative canopy, and built structures. Optimal processing parameter choices, subject to user modification, are provided along with sufficient explanation to train the user in elevation model analysis through the creation of customized output overlays.

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Document Details

Document Type
Technical Report
Publication Date
Nov 28, 2022
Accession Number
AD1186130

Entities

People

  • S. B. Blundell

Organizations

  • Engineer Research and Development Center

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Army
  • Army Corps Of Engineers
  • Cells
  • Computer Programs
  • Digital Elevation Models
  • Drainage Basins
  • Earth Models
  • Engineers
  • Geographic Information Systems
  • Geography
  • Graphical User Interface
  • Image Processing
  • Laser Radar
  • Marine Corps
  • Models
  • Mountain Warfare
  • Numerical Analysis
  • Remote Sensing
  • Terrain
  • Terrain Models
  • Tree Canopy
  • User Interface

Readers

  • Computer Vision.
  • Organizational Process Management (OPM).