The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 21, 2000
Filed:
Nov. 06, 1997
Applicant:
Inventor:
Sarah F Gibson, Arlington, MA (US);
Assignee:
Mitsubishi Electric Information Technology Center America, Inl. (ITA), Combridge, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06T / ;
U.S. Cl.
CPC ...
345424 ; 345426 ;
Abstract
A volumetric data representation for graphical objects encodes the distance of data elements to the nearest object surface, with means being provided for estimating the direction and magnitude of surface normals from the tance values. The subject system can be used to accurately reconstruct the normal direction of a slowly varying surface in volume sampled data for high quality Volume Rendering, accurate force reflection in haptic feedback, and accurate force calculation and object penetration estimation in physically-based graphics.