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:
Sep. 08, 2009
Filed:
Jun. 04, 2004
Sergei S Shinkevich, Redmond, WA (US);
Sergei S Shinkevich, Redmond, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
The present application provides for accurately identifying a selection of pixels in a digital image. A pixel edgewalk procedure utilizes pixel reference points situated around a pixel, such as at pixel vertices, to determine where to draw an outline to encompass selected pixels. Each pixel reference point is represented by one or more bits in memory that indicate certain information about each particular pixel reference point and pixels surrounding the pixel reference point. Utilizing this information, a determination is made as to where an outline can be drawn according to certain pixel reference points to encompass only pixels that are selected pixels. Resource overhead for determining bit settings for some pixel reference points is reduced by utilizing a bit-wise shift in memory bits allocated to an adjacent pixel reference point.