06720949 is referenced by 345 patents.

Affordable methods and apparatus are disclosed for inputting position, attitude (orientation) or other object characteristic data to computers for the purpose of Computer Aided Design, Painting, Medicine, Teaching, Gaming, Toys, Simulations, Aids to the disabled, and internet or other experiences. Preferred embodiments of the invention utilize electro-optical sensors, and particularly TV Cameras, providing optically inputted data from specialized datum's on objects and/or natural features of objects. Objects can be both static and in motion, from which individual datum positions and movements can be derived, also with respect to other objects both fixed and moving. Real-time photogrammetry is preferably used to determine relationships of portions of one or more datums with respect to a plurality of cameras or a single camera processed by a conventional PC.

Man machine interfaces and applications
Application Number
Publication Number
6720949 (B1)
Application Date
August 21, 1998
Publication Date
April 13, 2004
Peter Smith
1935 Orchardview Dr., Ann Arbor
Timothy R Pryor
416 Old Tecumseh Rd., Tecumseh, Ontario
Larson & Taylor
G09G 5/08
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