US Patent 7580461 Barbell lifting for wavelet coding

Patent 7580461 was granted and assigned to Microsoft on August, 2009 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Microsoft

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7580461

Date of Patent

August 25, 2009

Patent Application Number

10911836

Date Filed

August 4, 2004

Patent Primary Examiner

‌

Marsha D. Banks-Harold

Patent abstract

A method for encoding motion-compensated video data includes generating, for a current frame, a high-pass wavelet coefficient based on a function of pixels in a temporally adjacent frame. The operations are repeated for multiple pixels in an array of pixels in the current frame to form an array of high-pass wavelet coefficients. A low-pass wavelet coefficient is generated based on a function of the high-pass wavelet coefficients. A system for coding video data includes a temporal wavelet decomposition module decomposing a pixel into a high-pass coefficient by performing a discrete wavelet transform on the pixel, a function of pixels in a previous frame, and/or a function of pixels in a subsequent frame. The system includes a motion estimation module generating motion vectors associated with the pixels in the previous frame and in the subsequent frame.