Phenomenology of passive multi-band submillimeter-wave imagery

Autor: Aleksi Tamminen, Anssi Rautiainen, Sissi Enestam, Perttu Kajatkari, Mikko Leivo, Olli Kivimäki, Arttu Luukanen

Publikováno v: SPIE Proceedings.

In 2015, Asqella Oy commercialized a passive multi-band submillimeter-wave camera system intended for use in walk-by personnel security screening applications. In this paper we study the imagery acquired with the prototype of the ARGON passive multi-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ef9d1a7df89d7515ff044eb308cd00b6
https://doi.org/10.1117/12.2229029

Passive three-colour submillimetre-wave video camera

Autor: Jussi Varis, Tero Kiuru, Arttu Luukanen, Anssi Rautiainen, Mikko Leivo

Publikováno v: Luukanen, A, Kiuru, T, Leivo, M, Rautiainen, A & Varis, J 2013, Passive three-colour submillimetre-wave video camera . in D A Wikner & A R Luukanen (eds), Passive and Active Millimeter-Wave Imaging XVI ., 87150F, International Society for Optics and Photonics SPIE, Proceedings of SPIE, vol. 8715, SPIE Defense, Security, and Sensing, Baltimore, MD, United States, 29/04/13 . https://doi.org/10.1117/12.2018038

Stand-off detection for concealed weapons is one of the applications for passive submillimetre-wave imaging. The operating frequency (neglecting technology limitations) is often a compromise between the diffraction-limited angular resolution for a fi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43f0ad0b796a21d80774ad78fff2e4dd
https://doi.org/10.1117/12.2018038

Developments towards real-time active and passive submillimetre-wave imaging for security applications

Autor: Jussi Säily, A. Luukanen, David Gomes-Martins, P. Rantakari, Janne Hakli, Reijo Tuovinen, Sampo Makela, Markku Sipilä, Mikko Leivo, Hans Toivanen, Paivi Koivisto, Juha Ala-Laurinaho, Markus Gronholm, Pekka Pursula, Anssi Rautiainen, Aleksi Tamminen, Antti V. Räisänen

Publikováno v: Luukanen, A, Ala-Laurinaho, J, Leivo, M, Gomes Martins, D, Grönholm, M, Häkli, J, Koivisto, P, Mäkelä, S, Pursula, P, Rantakari, P, Sipilä, M, Säily, J, Tamminen, A, Toivanen, H, Tuovinen, R & Rautiainen, A 2012, Developments towards real-time active and passive submillimetre-wave imaging for security applications . in Proceedings : IEEE MTT-S International Microwave Symposium Digest, IMS 2012 ., 6259538, IEEE Institute of Electrical and Electronic Engineers, IEEE MTT-S International Microwave Symposium, IMS 2012, Montreal, Quebec, Canada, 17/06/12 . https://doi.org/10.1109/MWSYM.2012.6259538

Both active and passive submillimetre-wave stand-off imaging systems are under development for security imaging applications. The drivers for operation at higher frequencies have been the desire for better image resolution, smaller optics package, re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd2c904e649ed8eb86dead9d9bc5db66
https://doi.org/10.1109/MWSYM.2012.6259538

Design and performance of a passive video-rate THz system demonstrator

Autor: Mikko Leivo, M. Aikio, Hans Toivanen, A. Mäyrä, Markus Gronholm, Anssi Rautiainen, Arttu Luukanen

Publikováno v: Luukanen, A, Aikio, M, Grönholm, M, Leivo, M, Mäyrä, A, Rautiainen, A & Toivanen, H 2011, Design and performance of a passive video-rate THz system demonstrator . in D A Wikner (ed.), Passive Millimeter-Wave Imaging Technology XIV ., 802207, International Society for Optics and Photonics SPIE, Proceedings of SPIE, vol. 8022, SPIE Defense, Security, and Sensing. Passive Millimeter-Wave Imaging Technology XIV, Orlando, FL, United States, 28/04/11 . https://doi.org/10.1117/12.883865

In this paper we given an overview of the design and predicted performance of a passive video-rate THz camera intended for stand-off and walk-by concealed weapons and explosives detection. The system is based on previously reported work, and it utili

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e17b9c064f70aa08c142928efbf2eda4
https://doi.org/10.1117/12.883865

Real-time passive terahertz imaging system for standoff concealed weapons imaging

Autor: Aleksi Tamminen, Erich N. Grossman, Anssi Rautiainen, Mikko Leivo, Petteri Lappalainen, Arttu Luukanen, Charles Dietlein, Markus Gronholm, Juha Ala-Laurinaho, Leif Grönberg

Publikováno v: Luukanen, A, Grönberg, L, Grönholm, M, Lappalainen, P, Leivo, M, Rautiainen, A, Tamminen, A, Ala-Laurinaho, J, Dietlein, C R & Grossman, E N 2010, Real-time passive terahertz imaging system for standoff concealed weapons imaging . in D A Wikner & A R Luukanen (eds), Proceedings of SPIE : Passive Millimeter-Wave Imaging Technology XIII ., 767004, International Society for Optics and Photonics SPIE, Proceedings of SPIE, vol. 7670, SPIE Defense, Security, and Sensing. Passive Millimeter-Wave Imaging Technology XIII, Orlando, Florida, United States, 5/04/10 . https://doi.org/10.1117/12.850369

The performance of stand-off imaging systems of concealed weapons in the mm-wave range remains limited by the relatively poor angular resolution using practical aperture sizes. For this reason, increasing the operating frequency of the systems is des

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1d529c03f709c39d9b89f94ea2a601f
https://cris.vtt.fi/en/publications/ce29c307-a2b5-4f63-828c-fb695bd4c482