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Cost effective tangibles using fiducials for infrared multi-touch frames

  • The late immersion of multi-touch sensitive displays enables the use of tangibles on multi-touch screens. There a several wide spread and/or sophisticated solutions to fulfill this need but they seem to have some flaws. One popular system at the time of writing is an overlay frame that can be placed on a normal display with the corresponding size. The frame creates a grid with infrared light emitting diodes. The disruption of this grid can be detected and messages with the positions are sent via usb to a connected computer. This system is quite robust in matters of ambient light insensitivity and also fast to calibrate. Unfortunately it is not created with the recognition of tangibles in mind and printed patterns can not be resolved. This article summarizes an attempt to create fiducials that are recognized by an infrared multi-touch frame as fingers. Those false fingers are checked by a software for known patterns. Once a known pattern (= fiducial) has been recognized its position andThe late immersion of multi-touch sensitive displays enables the use of tangibles on multi-touch screens. There a several wide spread and/or sophisticated solutions to fulfill this need but they seem to have some flaws. One popular system at the time of writing is an overlay frame that can be placed on a normal display with the corresponding size. The frame creates a grid with infrared light emitting diodes. The disruption of this grid can be detected and messages with the positions are sent via usb to a connected computer. This system is quite robust in matters of ambient light insensitivity and also fast to calibrate. Unfortunately it is not created with the recognition of tangibles in mind and printed patterns can not be resolved. This article summarizes an attempt to create fiducials that are recognized by an infrared multi-touch frame as fingers. Those false fingers are checked by a software for known patterns. Once a known pattern (= fiducial) has been recognized its position and orientation are send with the finger positions towards the interactive software. The usability is tested with an example application where tangibles and finger touches are used in combination.show moreshow less

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Metadaten
Author:Thomas Becker, Jens HerderORCiDGND
Fachbereich/Einrichtung:Hochschule Düsseldorf / Fachbereich - Medien
Hochschule Düsseldorf / Fachbereich - Medien / Creative Media Production and Entertainment Computing
Hochschule Düsseldorf / Fachbereich - Medien / Intelligente Mensch-Technik-Interaktion​
Document Type:Conference Proceeding
Year of Completion:2012
Language of Publication:English
Place of publication:Hamamatsu/Aizu-Wakamatsu/Duesseldorf
Parent Title (English):15th International Conference on Human and Computer
Page Number:7
URN:urn:nbn:de:hbz:due62-opus-16011
Related URL:http://vsvr.medien.hs-duesseldorf.de/publications/hc2012-fiducials-abstract.html
Tag:FHD
fiducial tangible recognition; low cost multi-touch infrared overlay frame
Dewey Decimal Classification:0 Informatik, Informationswissenschaft, allgemeine Werke / 00 Informatik, Wissen, Systeme / 000 Informatik, Informationswissenschaft, allgemeine Werke
Licence (German):Es gilt das deutsche Urheberrecht
Release Date:2019/01/07
Note:
Copyright 2012 University of Aizu Press
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