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The continuous environmental radiation monitoring is very important after Fukushima accident especially for the evaluation of the decontamination. A portable gamma camera system is designed and fabricated with a compact digital front-end detector. A front-end detector consists of an 12 × 12 GAGG-APD (pixel size = 2 × 2 × 5 mm3) array combined with 144 channel Time over Threshold based ASIC. All the...
In arbitrary viewpoint image synthesis, methods to use shape information of subjects have been widely proposed. However, the shape estimation is generally a time-consuming task, and is not suitable for the real time implementation. In this paper, we focus on the reconstruction filtering method in which arbitrary viewpoint image synthesis is performed without the shape estimation on the assumption...
77 GHz millimeter wave passive imaging camera for the purpose of security is developed. In order to detect concealed objects in clothes without hindrance to flow of people at airport security checks, video rate imaging is realized using one-dimensional imaging sensor array of 25 elements and a flapping reflector. As receiving antennas, novel antipodal Fermi antenna (APFA) having required characteristics...
A newly developed 3D online monitoring system provides image quality equivalent to DVD and features a new image capture method that relatively reduces the visual burden compared with conventional stereo camera systems. The remote stereo vision system (RSVS) developed by the authors synthesizes right and left images taken by the stereo cameras into single image information and is compressed using the...
This paper describes a wireless camera node with passive pendulum mechanism. We focus on transferring captured movie via wireless network and easy setting-up operation at demonstration site.
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