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:
Jul. 15, 2003
Filed:
Aug. 31, 2000
Applicant:
Inventor:
Richard W. Webb, Los Gatos, CA (US);
Assignee:
ATI International Srl, Barbados, KN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 7/32 ;
U.S. Cl.
CPC ...
H04N 7/32 ;
Abstract
A method and apparatus that reduce the complexity of motion estimation while providing better quality for a particular level of reduced resolution than previously available are described. The method and apparatus involve motion estimation quantization dithering to avoid quantization error effects when reducing the resolution, for example, from eight-bit pixel intensity values to two-bit pixel intensity values. Consequently, an embodiment of the invention provides efficient motion estimation using statistically accurate reduced resolution representations.