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A 3D THz image processing methodology for a fully integrated, semi-automatic and near real-time operational system

By A. Brook, E. Cristofani, M. Vandewal, C. Matheis, J. Jonuscheit and R. Beigang

Abstract

The present study proposes a fully integrated, semi-automatic and near real-time mode-operated image processing methodology developed for Frequency-Modulated Continuous-Wave (FMCW) THz images with the center frequencies around: 100 GHz and 300 GHz. The quality control of aeronautics composite multi-layered materials and structures using Non-Destructive Testing is the main focus of this work. Image processing is applied on the 3-D images to extract useful information. The data is processed by extracting areas of interest. The detected areas are subjected to image analysis for more particular investigation managed by a spatial model. Finally, the post-processing stage examines and evaluates the spatial accuracy of the extracted information.© (2012) COPYRIGHT Society of Photo-Optical Instrume ntation Engineers (SPIE). Downloading of the abstract is permitted for personal use only

Topics: composites, image analysis, image processing, nondestructive evaluation, terahertz radiation
Year: 2012
DOI identifier: 10.1117/12.919382
OAI identifier: oai:fraunhofer.de:N-233020
Provided by: Fraunhofer-ePrints
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