Development of a Digital Image Measurement System

About this technology

Overview

As part of the NASA Aging Aircraft Research program's goal to develop reliable, predictive methods for assessing the residual strength of aging aerospace structures, Langley Research Center partnered with University of South Carolina researchers to develop Digital Image Correlation. This data analysis process uses a proprietary mathematical correlation method to analyze digital image data taken while samples are subjected to mechanical stresses. Consecutive image captures taken during the testing phase show" a change in surface characteristics as the specimen is affected by the mechanical stresses imposed upon it. This type of technology is known as computer vision the automated extraction of information regarding the objects or scene in one or more images. Correlated Solutions Inc. (CSI) received contracts from Langley to build systems capable of making specific measurements of interest to NASA. This prompted CSI to convert the working academic system to a viable commercial product.