<p align="center"><strong>Interactive  Chair: A Body-Oriented Approach to Interact with 3D Virtual World</strong></p>
<p align="center">Hsin-Hsien Chiu, Seung Wook Kim</p>
<p><strong>Motivation</strong><br />
  In everyday  life, we spend most of time sitting on a chair. While our both hands get busy  with holding a book, writing a memo, or manipulating keyboard and mouse, the  rest of our body is suspended on the seat pan or backrest of the chair.  Although human body often expresses our need or intention in the form of a posture  or an action, the use of chair has conventionally excluded such feedback from  our daily intellectual activities. The interactive chair, as we propose herein,  is expected to provide more natural way to interact with the computer by  sensing or responding to our bodily actions. </p>
<p><strong>Intended Use Cases</strong><br />
  The interactive  chair can be naturally applied in navigating the 3D virtual world that utilizes  the spatial orientation and the perspective mechanism associated with our  physical body. For example:</p>
<ol>
  <li>MMORPG: where both hands can be saved for various actions  other than navigating.</li>
  <li>Educational-purpose 3D environments: where most users are  not familiar with rapid and accurate control of keyboard and mouse.</li>
</ol>
<p><strong>Implementation</strong><br />
    <u>1. Potential  sensing devices (input)</u></p>
<ol>
  <li>Using force sensitive resistor, potentiometer, and/or  accelerometer, IR sensor, etc. </li>
  <li>Mounting positions of sensors on the chair: swivel axis,  seat pan, and/or footrest, etc.</li>
</ol>
<p><u>2. Mapping input  data to actions in the 3D world</u><br />
  a) Changing the  direction of gaze:<br />
  Mapping the  swivel angle of chair into the viewing direction in the virtual world<br />
  b) Changing the moving  direction:<br />
  Interpreting the  pressure distribution on the seat into the moving direction</p>
<p><u>3. Potential 3D  Application (output)</u><u> </u></p>
<ol>
  <li>Torque game engine-based 3D World (C++), or</li>
  <li>Java3D-based simple application (alternative)</li>
</ol>
<p><strong>Related Works</strong> (more to come)<br />
  1. Galen Cranz.  “The chair: rethinking culture, body, and design,” <em>New York: W.W. Norton</em>, 1998.<br />
  2. Hong Z. Tan,  Lynne A. Slivovsky, and Alex Pentland, &quot;A sensing chair using pressure  distribution sensors,&quot; <em>IEEE/ASME  Transactions on Mechatronics,</em> Vol. 6, No. 3, pp. 261-268, 2001.</p>