9 June 2014 Temperature resolution enhancing of commercially available THz passive cameras due to computer processing of images
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Abstract
As it is well-known, application of the passive THz camera for the security problems is very promising way. It allows seeing concealed object without contact with a person and this camera is non-dangerous for a person. Efficiency of using the passive THz camera depends on its temperature resolution. This characteristic specifies possibilities of the detection of concealed object: minimal size of the object, maximal distance of the detection, image detail. One of probable ways for a quality image enhancing consists in computer processing of image. Using computer processing of the THz image of objects concealed on the human body, one may improve it many times. Consequently, the instrumental resolution of such device may be increased without any additional engineering efforts. We demonstrate new possibilities for seeing the clothes details, which raw images, produced by the THz cameras, do not allow to see. We achieve good quality of the image due to applying various spatial filters with the aim to demonstrate independence of processed images on math operations. This result demonstrates a feasibility of objects seeing. We consider images produced by THz passive cameras manufactured by Microsemi Corp., and ThruVision Corp., and Capital Normal University (Beijing, China).
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Vyacheslav A. Trofimov, Vyacheslav A. Trofimov, Vladislav V. Trofimov, Vladislav V. Trofimov, Igor E. Kuchik, Igor E. Kuchik, } "Temperature resolution enhancing of commercially available THz passive cameras due to computer processing of images", Proc. SPIE 9078, Passive and Active Millimeter-Wave Imaging XVII, 90780L (9 June 2014); doi: 10.1117/12.2049413; https://doi.org/10.1117/12.2049413
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