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System and method for generating adaptively sampled distance fields with bounded distance trees
   
Document Number
US Patent 7002570
Issued Date
February 21, 2006
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Abstract
A method generates an adaptively sampled distance field of an object by first defining a candidate cell of the adaptively sampled distance field. Then, distance values for the candidate cell are determined and stored in a bounded distance tree. The candidate cell is recursively subdividing into subdivided cells of the adaptively sampled distance field while determining and storing corresponding distance values of the subdivided cells in the bounded distance tree until a termination condition is reached. Lastly, the distance values are appended to the corresponding cells to generate the adaptively sampled distance field of the object.
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Number of Claims:
12
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Published
February 21, 2006
Application Number
09/810,983
Filed
March 16, 2001
US Classification
345/419   345/423 345/427 345/428 345/619
Int'l Classification
G06T   15/00   (20060101)  
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USPTO Field of Search
345/420   345/423   345/428   345/443   345/421   345/419   345/427   345/619  
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