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Communication through head movements. Communication through head movements. Juha Pieviläinen juha.pievilainen@iki.fi Alternative communication & access to information seminar 2003 Department of Computer Sciences University of Tampere. Content. Introduction. Tracking technologies.
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Communication through head movements Communication through head movements Juha Pieviläinen juha.pievilainen@iki.fi Alternative communication & access to information seminar 2003 Department of Computer Sciences University of Tampere
Content • Introduction • Tracking technologies • Interaction style • Devices • Software • References
Introduction ”Computer users who cannot use a conventional hand-operated computer mouse and/or keyboard, may use a head operated mouse or keyboard in order to control their computer and, by using an on-screen keyboard, to type information.” [5] A Head Operated Joystick – Experience with use, G. Evans and P. Blenkhorn, CSUN 99, available at http://www.csun.edu/cod/conf/1999/proceedings/session0019.htm
Introduction Navigating virtual environments and more often playing games require a way to control field of vision. Keyboards, mice and joysticks might do the job, but they really are NOT natural way to change ones field of vision, turning ones head is.
Tracking technologies • mechanical • magnetic • sourceless, non-inertial • optical • acoustic (ultrasound) • inertial
Technologies - mechanical [2] Review of Virtual Environment Interface Technology, C. Youngblut, R.E. Johnson, et al., Institute for Defence Analyses, available at http://www.hitl.washington.edu/scivw/scivw-ftp/publications/IDA-pdf/
Technologies - magnetic [2] Review of Virtual Environment Interface Technology, C. Youngblut, R.E. Johnson, et al., Institute for Defence Analyses, available at http://www.hitl.washington.edu/scivw/scivw-ftp/publications/IDA-pdf/
Technologies – sourceless, non-inertial [2] Review of Virtual Environment Interface Technology, C. Youngblut, R.E. Johnson, et al., Institute for Defence Analyses, available at http://www.hitl.washington.edu/scivw/scivw-ftp/publications/IDA-pdf/
Technologies - optical [2] Review of Virtual Environment Interface Technology, C. Youngblut, R.E. Johnson, et al., Institute for Defence Analyses, available at http://www.hitl.washington.edu/scivw/scivw-ftp/publications/IDA-pdf/
Technologies – acoustic (ultrasound) [2] Review of Virtual Environment Interface Technology, C. Youngblut, R.E. Johnson, et al., Institute for Defence Analyses, available at http://www.hitl.washington.edu/scivw/scivw-ftp/publications/IDA-pdf/
Technologies - intertial [2] Review of Virtual Environment Interface Technology, C. Youngblut, R.E. Johnson, et al., Institute for Defence Analyses, available at http://www.hitl.washington.edu/scivw/scivw-ftp/publications/IDA-pdf/
similar to mouse require good head control skills similar to joystick less precise control needed Interaction style Absolute pointing vs. relative pointing [5] A Head Operated Joystick – Experience with use, G. Evans and P. Blenkhorn, CSUN 99, available at http://www.csun.edu/cod/conf/1999/proceedings/session0019.htm
Devices – Tracker 2000 • optical head tracker • choice between mouse and joystick mode • 8 directions • different button types available, physical buttons, sip/puff straw or optical switch [1] 100 % Hands-free Computer Access – Madentec’s 2000 series, R. Marsden, P.Eng., Madentec Limited, available at http://www.madentec.com/products/comaccess/2000/whitepaper.html
Devices –ADL-1 • mechanical head tracker • serial connection • cost around 1200 $ • [2] Review of Virtual Environment Interface Technology, C. Youngblut, R.E. Johnson, et al., Institute for Defence Analyses, available at http://www.hitl.washington.edu/scivw/scivw-ftp/publications/IDA-pdf/
Devices – Smart-Nav • optical head tracker • replaces mouse • price ranging between 129 to 299 $ [3] Eye Control Technologies, Inc. webpage at http://www.naturalpoint.com
Software – SymbolCreator • at the moment on experimental status • typing by selecting icons
Software – SoftType • Text entry into all standard Windows applications • Clicking done by dwell selection • Different keyboard layouts available • Word prediction [6] Origin Instruments Corporation webpage at http://orin.com/index.htm
Software – SoftType A more simple layout for kids [6] Origin Instruments Corporation webpage at http://orin.com/index.htm
Software – SoftType Qwerty Layout with integrated Dragger toolbar and Word Prediction. [6] Origin Instruments Corporation webpage at http://orin.com/index.htm
References 100 % Hands-free Computer Access – Madentec’s 2000 series, R. Marsden, P.Eng., Madentec Limited, available at http://www.madentec.com/products/comaccess/2000/whitepaper.html Review of Virtual Environment Interface Technology, C. Youngblut, R.E. Johnson, et al., Institute for Defence Analyses, available at http://www.hitl.washington.edu/scivw/scivw-ftp/publications/IDA-pdf/ Eye Control Technologies, Inc. webpage at http://www.naturalpoint.com Hands-free navigation in VR environments by teacking the head, S.B. Kang, CRL 97/1Technical Report Series, available at http://www.hpl.hp.com/techreports/Compaq-DEC/CRL-97-1.pdf A Head Operated Joystick – Experience with use, G. Evans and P. Blenkhorn, CSUN 99, available at http://www.csun.edu/cod/conf/1999/proceedings/session0019.htm Origin Instruments Corporation webpage at http://orin.com/index.htm