4 April 2001 Comparison of unwrapped image quality and acquisition speed from forward-looking and side-looking modes of the TCTBIS
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Abstract
A True Color Tube Bore Inspection System (TCTBIS) has been developed to aid in the visual nondestructive examination of the inside of small diameter tubes. The instrument was developed to inspect for the presence of contaminants and discoloration inside the tube. The tubes, which have a 1.5 - 1.7 millimeter inside diameter, are integrally attached to pressure vessels that are filled to high pressure through the tubes. The latest version of the TCTBIS can operate in two modes. In the forward-looking mode a borescope is used to look down the length of the tube. In the side-looking mode, a tube containing a 45 degree(s) mirror is placed over the forward-looking borescope so that a direct view of the sidewall of the tube can be seen. The work reported here is a comparison of the relative performance of these two operating modes in terms of image quality and data acquisition speed. Each mode uses an entirely different method of image acquisition and unwrapped image reconstruction. These methods along with comparison results and suggestions for improvements will be discussed in detail.
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Larry J. Harpring, Larry J. Harpring, Martin J. Pechersky, Martin J. Pechersky, } "Comparison of unwrapped image quality and acquisition speed from forward-looking and side-looking modes of the TCTBIS", Proc. SPIE 4301, Machine Vision Applications in Industrial Inspection IX, (4 April 2001); doi: 10.1117/12.420900; https://doi.org/10.1117/12.420900
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