The Experts below are selected from a list of 67422 Experts worldwide ranked by ideXlab platform
Yoshizo Okamoto - One of the best experts on this subject based on the ideXlab platform.
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surface temperature measurement near ambient conditions using infrared radiometers with different detection wavelength bands by applying a grey body approximation estimation of radiative properties for non metal surfaces
Ndt & E International, 1996Co-Authors: Terumi Inagaki, Yoshizo OkamotoAbstract:The Visualization Technique using an infrared radiometer has been widely used to estimate the two-dimensional temperature distribution on a surface. Infrared radiometry is a nondestructive remote sensing Technique and is applicable to various engineering problems such as invisible flaw detection, heat transfer measurement and so on. It is important to analyse its fundamental characteristics to establish a practical Technique of measuring temperature. We therefore discuss them experimentally using infrared radiometers with three detection wavelength bands. The radiative properties near ambient conditions are proposed for various non-metal surfaces, where the grey-body approximation may be applied.
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surface temperature measurement using infrared radiometer by applying a pseudo gray body approximation estimation of radiative property for metal surface
Journal of Heat Transfer-transactions of The Asme, 1996Co-Authors: Terumi Inagaki, Yoshizo OkamotoAbstract:The Visualization Technique using an infrared radiometer has been widely used to estimate a two-dimensional temperature distribution on a surface. We have previously proposed various characteristics of the radiative properties for nonmetal surfaces on which the gray-body approximation can be used. However, the gray-body approximation can not be applied to glossy metal surfaces, because the influence of the reflected energy on the temperature measurement becomes severe. A pseudo-gray-body approximation is therefore proposed to estimate a temperature field on metal surfaces and its applicability is confirmed using an infrared radiometer with three detection wavelength bands.
Hiroyuki Toda - One of the best experts on this subject based on the ideXlab platform.
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grain boundary tracking a four dimensional Visualization Technique for determining grain boundary geometry via local strain mapping
Acta Materialia, 2013Co-Authors: Hiroyuki Toda, Yoshikazu Ohkawa, Takanobu Kamiko, Takuma Naganuma, Kentaro Uesugi, Akihisa Takeuchi, Yoshio Suzuki, Masakazu KobayashiAbstract:Abstract A procedure for determining three-dimensional grain boundary geometry and its change under external loading is proposed for evaluating crystallographic deformation behaviours in polycrystalline materials, and the feasibility of this approach is confirmed for an aluminium alloy. X-ray microtomography has been combined with gallium-enhanced microscopy, in which grains are visualized in three dimensions by decorating grain boundaries with liquid gallium. Grain boundary particles are then extracted by comparing tomographic images with and without the gallium application. Three-dimensional reconstruction of grains is achieved using a connection scheme based on triplets of non-aligned points on grain boundaries. The deformation of the closed polygonal grains is visualized by combining the above Technique with a microstructural tracking Technique, in which the paths of particles are reconstructed by matching each pair of particles in consecutive images. This process also enables high-density four-dimensional strain mapping by tracking particles located in grains, providing direct interpretation of localized deformation caused by interaction between neighbouring grains.
Terumi Inagaki - One of the best experts on this subject based on the ideXlab platform.
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surface temperature measurement near ambient conditions using infrared radiometers with different detection wavelength bands by applying a grey body approximation estimation of radiative properties for non metal surfaces
Ndt & E International, 1996Co-Authors: Terumi Inagaki, Yoshizo OkamotoAbstract:The Visualization Technique using an infrared radiometer has been widely used to estimate the two-dimensional temperature distribution on a surface. Infrared radiometry is a nondestructive remote sensing Technique and is applicable to various engineering problems such as invisible flaw detection, heat transfer measurement and so on. It is important to analyse its fundamental characteristics to establish a practical Technique of measuring temperature. We therefore discuss them experimentally using infrared radiometers with three detection wavelength bands. The radiative properties near ambient conditions are proposed for various non-metal surfaces, where the grey-body approximation may be applied.
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surface temperature measurement using infrared radiometer by applying a pseudo gray body approximation estimation of radiative property for metal surface
Journal of Heat Transfer-transactions of The Asme, 1996Co-Authors: Terumi Inagaki, Yoshizo OkamotoAbstract:The Visualization Technique using an infrared radiometer has been widely used to estimate a two-dimensional temperature distribution on a surface. We have previously proposed various characteristics of the radiative properties for nonmetal surfaces on which the gray-body approximation can be used. However, the gray-body approximation can not be applied to glossy metal surfaces, because the influence of the reflected energy on the temperature measurement becomes severe. A pseudo-gray-body approximation is therefore proposed to estimate a temperature field on metal surfaces and its applicability is confirmed using an infrared radiometer with three detection wavelength bands.
Masakazu Kobayashi - One of the best experts on this subject based on the ideXlab platform.
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grain boundary tracking a four dimensional Visualization Technique for determining grain boundary geometry via local strain mapping
Acta Materialia, 2013Co-Authors: Hiroyuki Toda, Yoshikazu Ohkawa, Takanobu Kamiko, Takuma Naganuma, Kentaro Uesugi, Akihisa Takeuchi, Yoshio Suzuki, Masakazu KobayashiAbstract:Abstract A procedure for determining three-dimensional grain boundary geometry and its change under external loading is proposed for evaluating crystallographic deformation behaviours in polycrystalline materials, and the feasibility of this approach is confirmed for an aluminium alloy. X-ray microtomography has been combined with gallium-enhanced microscopy, in which grains are visualized in three dimensions by decorating grain boundaries with liquid gallium. Grain boundary particles are then extracted by comparing tomographic images with and without the gallium application. Three-dimensional reconstruction of grains is achieved using a connection scheme based on triplets of non-aligned points on grain boundaries. The deformation of the closed polygonal grains is visualized by combining the above Technique with a microstructural tracking Technique, in which the paths of particles are reconstructed by matching each pair of particles in consecutive images. This process also enables high-density four-dimensional strain mapping by tracking particles located in grains, providing direct interpretation of localized deformation caused by interaction between neighbouring grains.
Sidney Fels - One of the best experts on this subject based on the ideXlab platform.
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kinect based augmented reality projection with perspective correction
International Conference on Computer Graphics and Interactive Techniques, 2011Co-Authors: Yichen Tang, Billy Lam, Ian Stavness, Sidney FelsAbstract:This work introduces an augmented reality 3D Visualization Technique combining object surface information detection through Kinect and perspective-corrected rendering and projection. Virtual scene is first altered and rendered with detected surface information, then mapped and projected onto corresponding surfaces of the object. Compared to traditional augmented reality which requires additional screens, our approach better utilized structural information of an object and enabled direct reference from physical objects used as display, therefore demonstrates better augmented reality experience and potential for more intuitive interaction.
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Techniques for interactive video cubism poster session
ACM Multimedia, 2000Co-Authors: Sidney Fels, Eric Lee, Kenji MaseAbstract:This paper presents an interactive video Visualization Technique called video cubism. With this Technique, video data is considered to be a block of three dimensional data where frames of video data comprise the third dimension. The user can observe and manipulate a cut plane or cut sphere through the video data. An external real-time video source may also be attached to the video cube. The Visualization leads to images that are aesthetically interesting as well as being useful for image analysis.
