نتایج جستجو برای: thermal infrared imaging
تعداد نتایج: 749235 فیلتر نتایج به سال:
The present study aims to validate the applicability of infrared (IR) thermal imaging for the study of brain function through experiments on the rat barrel cortex. Regional changes in neural activity within the brain produce alterations in local thermal equilibrium via increases in metabolic activity and blood flow. We studied the relationship between temperature change and neural activity in a...
BACKGROUND Although thermal imaging can be a valuable technology in the prevention and management of diabetic foot disease, it is not yet widely used in clinical practice. Technological advancement in infrared imaging increases its application range. The aim was to explore the first steps in the applicability of high-resolution infrared thermal imaging for noninvasive automated detection of sig...
Medical imaging has become an essential and integrated part of modern medical care and is depended upon a wide range of medical specialists. Infrared thermography has become a diagnostic aid for monitoring the therapeutic effect and disease progression. Thermal imaging or Infrared Imaging refers to mapping of temperature profiles on the surface of an object. It has been investigated that it is ...
A flexible and coherent bundle of hollow optical fibers was fabricated for infrared thermal imaging. For acquisition of thermal images, differences in the transmission efficiency among the fibers were numerically compensated to obtain high temperature resolution of 1°C for measuring body temperature. In a lens system with 10-fold magnification and hollow fibers of 320-μm inner diameter, the spa...
The higher concentration of man-made objects like asphalt pavement and concrete structures within urban areas lead to the formation of subareas known as urban heat islands (UHI), where the ambient temperature is significantly higher. Having a good understanding of this problem is critical for better urban development. Thermal infrared (TIR, 8-12 μm) remote sensing is often used to localize UHI....
A high-resolution infrared (IR) camera was used to assess rhythmicity in localized renal blood flow, including the extent of regions containing nephrons with spontaneous oscillations in their individual blood flow. The IR imaging was able to follow changes in rat renal perfusion during baseline conditions, during occlusion of the main renal artery and during the administration of either saline ...
A new instrument has been setup at the Centre de Recherche Public-Gabriel Lippmann to measure spectral emissivity values of typical earth surface samples in the 8 to 12 μm range at a spectral resolution of up to 0.25 cm. The instrument is based on a Hyper-Cam-LW built by Telops with a modified fore-optic for vertical measurements at ground level and a platform for airborne acquisitions. A proce...
Breast cancer is the most common cancer among women. Thermography, also known as thermal or infrared imaging, is a procedure to determine if an abnormality is present in the breast tissue temperature distribution. This abnormality in temperature distribution might indicate the presence of an embedded tumor. Although thermography is currently used to indicate the presence of an abnormality, ther...
Agricultural aircraft and unmanned aerial vehicles (UAVs) are easily scheduled and accessible remote sensing platforms. Canopy temperature data for crop stress analysis were obtained with an Electrophysics PV-320T thermal imaging camera mounted in agricultural aircraft. Weather data and soil water potential were monitored and thermal images were analyzed for canopy temperature trends accounting...
Functional infrared thermal imaging (fITI) is considered an upcoming, promising methodology in the emotional arena. Driven by sympathetic nerves, observations of affective nature derive from muscular activity subcutaneous blood flow as well as perspiration patterns in specific body parts. A review of 23 experimental procedures that employed fITI for investigations of affective nature is provide...
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