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:
Oct. 09, 2007
Filed:
Sep. 23, 2004
Teruyuki Nakahashi, Tokyo, JP;
Osamu Watanabe, Tokyo, JP;
Tanio Nagasaki, Tokyo, JP;
Tetsugo Inada, Tokyo, JP;
Yasuhiro Moriyama, Tokyo, JP;
Hideshi Yamada, Tokyo, JP;
Teruyuki Nakahashi, Tokyo, JP;
Osamu Watanabe, Tokyo, JP;
Tanio Nagasaki, Tokyo, JP;
Tetsugo Inada, Tokyo, JP;
Yasuhiro Moriyama, Tokyo, JP;
Hideshi Yamada, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
An image processing apparatus capable of realizing accurate anti-aliasing with a small memory, without being affected by the order of drawing, and without inducing a drop in the drawing speed, including an anti-aliasing system obtaining edge information from an image after drawing, determining a processing content necessary for the anti-aliasing, and performing the determined processing. Specifically, either of the information of a z-buffer and the information of the normal vector at each pixel obtained at the time of drawing, or both information, is scanned or by the information of normal vectors restored from the information of the z-buffer is used, a state machine for holding the state and a counter for measuring the continuity of an edge are prescribed, the value of which pixel adjacent in which direction to each pixel on each edge and what kind of ratio to use for blending are determined, and the determined values are used for blending. This is performed successively until the pixel values are updated.