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:
Apr. 20, 2010
Filed:
Jul. 20, 2005
Che-chih Tsao, Arlington, MA (US);
Che-Chih Tsao, Arlington, MA (US);
Other;
Abstract
The fundamental concept of expressing brightness level of a geometric primitive is to control the number of rendered display elements, representing desired brightness level, in the geometric primitive as a fraction of the maximum number of display elements, representing the maximum brightness level, that can be placed in it. There are two approaches to achieve this control: Point-based Rendering and Intersection-based Rendering. In Point-based Rendering, a geometric primitive is converted into a representation of sampling points and then the sampling points are rendered. In Intersection-based Rendering, the intersections of a geometric primitive with the frame slices are rendered. The basic procedure to render a texture-mapped surface is to divide the surface into a number of regions, each region having a different intensity range, and then render each region with a different density of display elements to represent different brightness level. The procedure of rendering a 3D volume with gray scale distribution is similar.