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. 08, 2013
Filed:
Nov. 09, 2007
Lefan Zhong, San Jose, CA (US);
Abdulkadir Utku Diril, San Jose, CA (US);
Lefan Zhong, San Jose, CA (US);
Abdulkadir Utku Diril, San Jose, CA (US);
Vivante Corporation, Sunnyvale, CA (US);
Abstract
An apparatus and method for detecting and handling thin lines in a raster image includes reading depth values for each pixel of an n×m block of pixels surrounding a substantially central pixel. Differences are then calculated for selected depth values of the n×m block of pixels to yield multiple difference values. These difference values may then be compared with multiple pre-computed difference values associated with thin lines pre-determined to pass through the n×m block of pixels. If the difference values of the pixel block substantially match the difference values of one of the pre-determined thin lines, the pixel block may be deemed to describe a thin line. The apparatus and method may preclude application of an anti-aliasing filter to the substantially central pixel of the pixel block in the event it describes a thin line.