|
Search our Site
Back to Main Patents Page
|
|
United States Patent
Dynamic Generation of Imperceptible Structured
Light for Tracking and Acquisition of Three Dimensional
Scene Geometry and Surface Characteristics in Interactive
Three Dimensional Computer Graphics Applications
Patent Number: 5,870,136
Date of Patent: Feb. 9, 1999
Inventors: Henry Fuchs (Chapel Hill, N.C.), Mark A. Livingston
(Chapel Hill, N.C.), Gary Bishop (Apex, N.C.), and Gregory F. Welch (Chapel
Hill, N.C.)
Assignee: The University of North Carolina at Chapel Hill,
Chapel Hill, N.C.
Appl. No.: 986,309
Filed: Dec. 5, 1997
Int. Cl.: H04N 13/00
U.S. Cl.: 348/42; 348/169; 382/106
29 Claims
Abstract
Methods, systems and computer products are provided for tracking
objects within a scene using imperceptible structured light.
The imperceptible structured light may be used in environments
where humans work and therefore avoids disorienting observers.
The structured light patterns are generated dynamically, allowing
tracking without physical landmarks. Moreover, the occlusion of
the generated landmarks is overcome by determining the position of
objects using a determined camera position. The imperceptible
structured light may be used in systems without tracking. The
tracking may be used without imperceptible structured light.
|
