Topic
Thermography
About: Thermography is a research topic. Over the lifetime, 8016 publications have been published within this topic receiving 97023 citations. The topic is also known as: IIR.
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TL;DR: In this paper, the authors combined thermal wave and thermography to provide a short-time low-frequency phase angle image where non-thermal features can be suppressed using lock-in data analysis.
Abstract: Thermography and thermal wave techniques can be combined to provide in a short‐time low‐frequency phase angle images where nonthermal features can be suppressed. The principle is optical thermal wave generation simultaneously on the whole sample surface and sequential monitoring of all pixels using both thermographic techniques and lock‐in data analysis. Due to parallel stationary excitation one can use low modulation frequencies allowing for a depth range that is of relevance for applications.
638 citations
14 Dec 1988
TL;DR: In this paper, DeWitt et al. presented a method for counting the effective emissions of Cavity Sources of Thermal Radiation (R. Bedford et al., 2003) and Detector-Based Traceability of Temperature Standards (A. Ono, et al.).
Abstract: Partial table of contents: FUNDAMENTALS OF RADIOMETRIC TEMPERATURE MEASUREMENT. Physics of Thermal Radiation (D. DeWitt & F. Incropera). Thermal Radiative Properties of Materials (D. DeWitt & J. Richmond). RADIATION THERMOMETERS AND MEASUREMENT METHODS. Wide--Band Radiation Thermometers (R. Leftwich). Fast Radiation Thermometry (A. Cezairliyan, et al.). METHODS FOR CALIBRATION OF RADIATION THERMOMETERS. Calculation of Effective Emissivities of Cavity Sources of Thermal Radiation (R. Bedford). Detector--Based Traceability of Temperature Standards (A. Ono, et al.). APPLICATIONS OF RADIATION THERMOMETRY. Radiation Thermometry in the Steel Industry (F. Milhalow). The Application of Thermography for Building and Industrial Energy Management (P. Mill & G. McIntosh). Index.
561 citations
TL;DR: In this article, principal component thermography (PCT) is applied to the non-destructive inspection of composite structures, and a simple analytical expression is derived that relates a characteristic time furnished by the decomposition to the flaw depth, providing a basis for flaw depth estimation.
556 citations
TL;DR: In this paper, the authors investigated the effects of roof emissivity variation of aerial thermogram images and concluded that the observed variation in rooftop emissivities has a minimal effect on the temperatures depicted in thermograms.
528 citations
TL;DR: While the use of infrared imaging is increasing in many industrial and security applications, it has declined in medicine probably because of the continued reliance on first generation cameras.
Abstract: Infrared thermal imaging of the skin has been used for several decades to monitor the temperature distribution of human skin. Abnormalities such as malignancies, inflammation, and infection cause localized increases in temperature which show as hot spots or as asymmetrical patterns in an infrared thermogram. Even though it is nonspecific, infrared thermology is a powerful detector of problems that affect a patient's physiology. While the use of infrared imaging is increasing in many industrial and security applications, it has declined in medicine probably because of the continued reliance on first generation cameras. The transfer of military technology for medical use has prompted this reappraisal of infrared thermology in medicine. Digital infrared cameras have much improved spatial and thermal resolutions, and libraries of image processing routines are available to analyze images captured both statically and dynamically. If thermographs are captured under controlled conditions, they may be interpreted readily to diagnose certain conditions and to monitor the reaction of a patient's physiology to thermal and other stresses. Some of the major areas where infrared thermography is being used successfully are neurology, vascular disorders, rheumatic diseases, tissue viability, oncology (especially breast cancer), dermatological disorders, neonatal, ophthalmology, and surgery.
512 citations