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. 07, 1999
Filed:
Mar. 20, 1997
Applicant:
Inventor:
Paul Charlton, Sunnyvale, CA (US);
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06T / ;
U.S. Cl.
CPC ...
345439 ; 345131 ; 345136 ; 382300 ; 395102 ; 348581 ; 358447 ;
Abstract
An innovative technique for minimizing the visual artifacts created by scaling an image is disclosed. More particularly, a factor that adds a degree of pseudo-randomness to the location of values generated as output during the scaling process is incorporated in one embodiment, the initial value of the error term used to generate the series is set on a semi-random basis such that the output pixels generated are offset from one another on different rows or columns of the image. Thus, any banding artifacts which are created using the prior art process will be minimized due to the shifting of pixels.