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Pyroelectric Thermal Imaging Devices
IEEE Transactions on Sonics and Ultrasonics, 1972Study of the pyroelectric properties of a number of ferroelectric materials has shown that they can be used as sensitive infrared detectors suitable for use in thermal imaging systems. In particular when single domain triglycine sulphate elements of adequate quality are used, the detectivity obtained approaches within an order of magnitude of an ideal ...
E. H. Putley, R. Watton, J. H. Ludlow
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Journal of Microscopy, 2001
Active thermal imaging techniques and their applications to composite materials are reviewed. The techniques included are transient thermography, scanning thermal microscopy and scanning thermal probe microscopy. The factors that affect the images produced by both pulsed and periodic forms of active heating are considered.
D. P., Almond, W., Peng
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Active thermal imaging techniques and their applications to composite materials are reviewed. The techniques included are transient thermography, scanning thermal microscopy and scanning thermal probe microscopy. The factors that affect the images produced by both pulsed and periodic forms of active heating are considered.
D. P., Almond, W., Peng
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Image Processing Techniques in Thermal and Non-thermal Images
2021Digital thermal imaging (DTI) is a passive, noninvasive, non–ionizing, complimentary diagnostic and real time monitoring technique that enables visualizing and quantifying changes in skin surface temperature. A thermal camera can detect temperature variations in the body, as minute as within 0.1 °C. The image highlights the temperature scale by showing
Ushus S. Kumar +3 more
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Biomedical Engineering, 1980
Broad introduction of thermovision systems in medical practice, and their multifunctional intension make it necessary to find new, more effective ways to processing and analysis of thermal patterns. Acception of these methods in medicine should provide higher diagnostic accuracy and informativeness of thermovision.
N D, Kurtev, S S, Antsyferov
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Broad introduction of thermovision systems in medical practice, and their multifunctional intension make it necessary to find new, more effective ways to processing and analysis of thermal patterns. Acception of these methods in medicine should provide higher diagnostic accuracy and informativeness of thermovision.
N D, Kurtev, S S, Antsyferov
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High-Order Thermal Ghost Imaging
Conference on Lasers and Electro-Optics/International Quantum Electronics Conference, 2009We show theoretically that high-order thermal ghost imaging has considerably higher visibility and contrast-to-noise ratio than conventional thermal ghost imaging, which utilizes the lowest-order intensity cross correlation of the object and the reference signal.
Kam Wai Clifford, Chan +2 more
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Image segmentation in thermal images
2016 IEEE International Conference on Industrial Technology (ICIT), 2016This paper presents a novel method for image segmenting in thermal images. A thermal imaging sensor is a device that forms an image by detecting the infrared radiation from objects in a scene and comparing their temperature differences. In this study, we characterized an object's heat signature (its mean temperature and variance) by segmenting its ...
Yung-Yao Chen +2 more
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American Journal of Physics, 2015
The tip of a rod is heated with a torch and brought into contact with the center of a metal sheet. A thermal camera is then used to image the temperature profile of the surface as a function of time. The infrared camera is capable of recording radiometric data with 1 mK resolution in nearly 105 pixels, so thermal diffusion can be monitored with ...
Tim Gfroerer, Ryan Phillips, Peter Rossi
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The tip of a rod is heated with a torch and brought into contact with the center of a metal sheet. A thermal camera is then used to image the temperature profile of the surface as a function of time. The infrared camera is capable of recording radiometric data with 1 mK resolution in nearly 105 pixels, so thermal diffusion can be monitored with ...
Tim Gfroerer, Ryan Phillips, Peter Rossi
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Boundary-Layer Meteorology, 2013
A method for measuring the two-dimensional distribution of wind velocity vectors near a surface exposed to solar radiation, by tracking brightness temperature images instead of particle images, is proposed. It is based on time-sequential thermography with the algorithm used for particle image velocimetry. This thermal image velocimetry (TIV) was tested
Inagaki, A. +3 more
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A method for measuring the two-dimensional distribution of wind velocity vectors near a surface exposed to solar radiation, by tracking brightness temperature images instead of particle images, is proposed. It is based on time-sequential thermography with the algorithm used for particle image velocimetry. This thermal image velocimetry (TIV) was tested
Inagaki, A. +3 more
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Clinical thermal imaging today
IEEE Engineering in Medicine and Biology Magazine, 1998In order to make thermal imaging a universally acceptable clinical technique, one must try to understand what is being observed, and what the observation signifies. One must also prove the validity of hypotheses about underlying causes of a given local hyper or hypothermia.
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2014
Thermal imaging is a non-contact method in which the radiation pattern of an object is converted into a visible image called thermal image or thermogram. All the objects at temperature above absolute zero (−273 °C) emit infrared radiation. The infrared band with wavelength from 3 to 14 µm is called thermal infrared region.
M. Teena, A. Manickavasagan
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Thermal imaging is a non-contact method in which the radiation pattern of an object is converted into a visible image called thermal image or thermogram. All the objects at temperature above absolute zero (−273 °C) emit infrared radiation. The infrared band with wavelength from 3 to 14 µm is called thermal infrared region.
M. Teena, A. Manickavasagan
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