Title :
Aluminum corrosion detection by using a neutron radiographic image analyzer
Author :
Dias, Ailton F. ; de A.Araujo, A. ; Crispim, Vergnia R.
Author_Institution :
Centro de Desenvolvimento da Tecnologia Nucl., Univ. Federal de Minas Gerais, Belo Horizonte, Brazil
Abstract :
Neutron radiography has been widely employed to investigate corrosion in aluminum aircraft components. A neutron radiographic image analyzer has previously been developed that has embedded several image processing routines (preprocessing, filtering, edge enhancement, segmentation, measurement and, pseudo coloring and image comparison). Radiographic negatives are digitized in two ways: (a) using a ScanJet IIp flat scanner and, (b) using a Sony DXC-107 CCD camera and a monochrome frame-grabber. The good results of the employment of digital image processing on neutron radiographic images for aluminum corrosion detection have encouraged the authors to continue the research and to develop a real-time neutron radiography imaging system
Keywords :
aircraft testing; aluminium; analogue-digital conversion; corrosion testing; image colour analysis; image enhancement; image segmentation; neutron radiography; nondestructive testing; radiography; Al; ScanJet IIp flat scanner; Sony DXC-107 CCD camera; aircraft components; aluminum corrosion detection; digital image processing; edge enhancement; filtering; image comparison; image processing routine; measurement; monochrome frame-grabber; neutron radiographic image analyzer; preprocessing; pseudo coloring; radiographic negatives; real-time neutron radiography imaging system; segmentation; Aircraft; Aluminum; Corrosion; Filtering; Image analysis; Image color analysis; Image edge detection; Image processing; Neutrons; Radiography;
Conference_Titel :
Image Processing, 1994. Proceedings. ICIP-94., IEEE International Conference
Conference_Location :
Austin, TX
Print_ISBN :
0-8186-6952-7
DOI :
10.1109/ICIP.1994.413583
