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.
Analysis of Edge Detection Techniques for Radiographic Image Measurement
1988
38 pages
Report
Keine Angabe
Englisch
Rocket Engines & Motors , Quality Control & Reliability , Nondestructive Testing , Rocket nozzles , Solid propellant rocket engines , Visual inspection , Computer applications , Computers , Detection , Edges , Erosion , Frames , Ignition , Image processing , Images , Measurement , Methodology , Nozzles , Radiography , Rocket engines , Time series analysis , Video tapes
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