The Application of Image Processing to Laser Displacement and Strain Analysis

871947

10/01/1987

Event
Passenger Car Meeting & Exposition
Authors Abstract
Content
New image processing procedures for speckle photography and holographic interferometry are described. The algorithm for speckle photography measures the displacement value and direction automatically within the accuracy of ±5% over a range of 10 µm to 150 µm. This algorithm has adopted the Maximum Entropy Method to measure fringe intervals with high accuracy. The algorithm for holographic interferometry detects the fringe line and determines the displacement distribution with an operator's assist. Through the experiments, it was shown that these procedures are effective and accurate for vibration and deformation analysis.
Meta TagsDetails
DOI
https://doi.org/10.4271/871947
Pages
12
Citation
Kawakami, T., and Kinoshita, A., "The Application of Image Processing to Laser Displacement and Strain Analysis," SAE Technical Paper 871947, 1987, https://doi.org/10.4271/871947.
Additional Details
Publisher
Published
Oct 1, 1987
Product Code
871947
Content Type
Technical Paper
Language
English