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		   B O S T O N   U N I V E R S I T Y
                                       
		      Computer Science Department
                                       
			  C O L L O Q U I U M
                                       
		       Wednesday February 8, 1995
                                       
				 3:00pm
		       (Coffee served at 2:30pm)
                                       
			 Seminar Room / MCS 135
                                       

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	       Eye Movement-Based Interaction Techniques
	       and the Future of User Interface Software

			   Robert J.K. Jacob

       Department of Electrical Engineering and Computer Science
			    Tufts University

  I have been investigating the use of passive observation of the
  movements of a user's eyes as an additional user-to-computer input
  medium.  While the technology for measuring a user's visual line of gaze
  (where he or she is looking in space) and reporting it in real time has
  been improving, what is needed are appropriate interaction techniques
  that incorporate eye movements into the user-computer dialogue in a
  convenient and natural way.  I will describe my research on developing
  such interaction techniques at the Naval Research Laboratory.  I will
  discuss some of the technical considerations that arise in trying to use
  eye movements as an input medium, such as appropriate filtering and
  fixation recognition algorithms and the design of the user interface
  software; describe our approach and the first eye movement-based
  interaction techniques that we have devised and implemented; and report
  our experiences and observations on them.

  Eye movement-based interaction is also a good example of an emerging
  generation of non-command user interfaces, which respond to observations
  of the user, rather than to explicit user commands.  Virtual
  environments, eye movements, and other new, highly interactive,
  non-command styles of interaction place new demands on user interface
  software.  The discrete, single-thread, event-driven approaches used
  heretofore are no longer adequate.  I will discuss the user interface
  software architecture and specification issues raised by these new
  interaction styles and some approaches for solving them.

Host: Prof. Azer Bestavros
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For colloquium info, including directions, see http://cs-www.bu.edu/colloquium
   For more information contact Prof. Mark Crovella <crovella@bu.edu>
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