Analysis of Edge Detection Techniques for Radiographic Image Measurement

Abstract

Personnel at the Arnold Engineering Development Center (AEDC) routinely X-ray inspect solid rocket motors. From the visual inspection of these data, potentially dangerous situations have been avoided by preventing the test of damaged rocket motors. However, an objective like rocket nozzle erosion cannot be analyzed in a timely fashion because of the detailed inspection required per frame of videotape, and the number of frames for a typical rocket motor firing. The goal of this study was to evaluate computer image measurement techniques so a process like measurement of rocket motor nozzle throat erosion can be automated for timely analysis. After evaluation of several edge detection techniques, two procedures were found to be satisfactory for this task. This study has determined that radiographic images can be measured accurately to within 0.14 inches by timely computer analysis. Keywords: Image analysis, Radiography, Edge detection, Solid rocket motors, Nozzle erosion.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1988
Accession Number
ADA193650

Entities

People

  • A. L. Nasser

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Acquisition
  • Air Force
  • Air Force Facilities
  • Algorithms
  • Change Detection
  • Data Acquisition
  • Data Sets
  • Detection
  • Detectors
  • Digital Images
  • Engineering
  • Image Processing
  • Pattern Recognition
  • Rocket Engines
  • Standards
  • United States
  • Visual Inspection

Fields of Study

  • Physics

Readers

  • Computer Vision.
  • Rocket Propulsion.
  • Systems Analysis and Design