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:
Jan. 25, 2000
Filed:
Dec. 31, 1997
David L Sprague, Gilbert, AZ (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A method is disclosed for determining whether a distant 3-dimensional object is completely obstructed from view by a closer 3-dimensional object. The method includes determining which of the two 3-dimensional objects is farther from a viewer. For the object farther away, determining that object's smallest bounding sphere, and projecting that sphere onto the view plane of the observer. For the object closer to the observer, determining that object's largest bounded sphere, and projecting that sphere onto the view plane. The two projections are then compared. If the near-object projection completely contains the far-object projection, then the distant object is completely obscured from view by the closer object. If completely obscured from view, the distant object is discarded; otherwise, the distant object is rendered in the normal manner.