Carnegie Mellon University
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Barrier-Based Stereoscopic Image Display System (BBSID)
This project is no longer active.
Head: Adam Kalai
Contact: Mel Siegel
Mailing address:
Carnegie Mellon University
Robotics Institute
5000 Forbes Avenue
Pittsburgh, PA 15213
Associated center(s) / consortia:
 Center for Integrated Manfacturing Decision Systems (CIMDS)
Associated lab(s) / group(s):
 Intelligent Sensor, Measurement, and Control Lab
Project Homepage
We describe a prototype of an autostereoscopic 3D display that requires no head tracking, no glasses, and provides different views from different horizontal viewing angles.

In a conventional parallax barrier display, the viewer sees a horizontal sample of the image, as if looking through a thin picket fence at a real 3D object, thus providing only a fraction of the horizontal display resolution. In our system, we achieve up to the full display resolution by moving the parallax barriers horizontally while updating the display. The user sees a changing horizontal sample of the display, as if looking through a quickly-moving fence. The effect is better resolution and fewer constraints than in stationary parallax barrier displays.