CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 6205 > Article
Paper
18 April 2006 Development of an interatmospheric window wavelength (5-9 μm) infrared thermography with an advanced image processing technique
Daisuke Sato, Tatsuhito Komiyama, Takahide Sakagami, Shiro Kubo
Author Affiliations +
Proceedings Volume 6205, Thermosense XXVIII; 62050B (2006) https://doi.org/10.1117/12.668428
Event: Defense and Security Symposium, 2006, Orlando (Kissimmee), Florida, United States
Abstract
Recently, deterioration of concrete structures before their design life has become a serious social problem in Japan. Nondestructive inspection techniques are required, for detecting defects and damages in concrete structures, such as subsurface void or delamination. As one of these techniques, the thermographic NDT can be applied as an effective NDT technique to inspect large area of the objective structure from distant place. In addition, it does not require any chemicals and application of physical excitation for inspection. However, the thermographic NDT has a shortcoming that the measurement results are affected by the reflection of atmospheric radiation due to the sunlight, sky or surrounding materials. Since most of the buildings in Japan are covered with luster materials with low emissivity, such as tile or mortal, infrared reflection on the surface is difficult to be neglected. To reduce the influence of these reflection noises, the infrared thermography with detectable wavelength from 5 to 8 μm, which coincides with absorption range of moisture, is utilized. In this research, a new infrared thermography with 5 to 8 μm wavelength range by applying a band pass filter and an uncooled microbolometer infrared array detector. Further, a new signal to noise (S/N) ratio improvement technique has been developed in order to compensate a deterioration of sensitivity due to the band pass filter.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Daisuke Sato, Tatsuhito Komiyama, Takahide Sakagami, and Shiro Kubo "Development of an interatmospheric window wavelength (5-9 μm) infrared thermography with an advanced image processing technique", Proc. SPIE 6205, Thermosense XXVIII, 62050B (18 April 2006); https://doi.org/10.1117/12.668428
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 11 PAGES
DOWNLOAD PAPER SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Infrared cameras
Infrared radiation
Thermography
Infrared imaging
Microbolometers
Reflection
Denoising
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top