US Patent 7978933 Systems and methods for robust video temporal registration

Patent 7978933 was granted and assigned to Tektronix on July, 2011 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Tektronix

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7978933

Date of Patent

July 12, 2011

Patent Application Number

12104380

Date Filed

April 16, 2008

Patent Primary Examiner

‌

Sherali Ishrat

Patent abstract

A robust video temporal method for registration between test and reference video sequences without a priori knowledge of the respective signal parameters initially produces frame and subimage distillation measurements from the test and reference video sequences. The frame distillation measurements are linearly aligned using a local Pearson's cross-correlation coefficient (LPCCC) image to obtain a best alignment line, each pixel of which represents an LPCCC cross-correlation coefficient between frames of the test and reference video sequences. For each pixel of the best alignment line that is below a threshold, a vertical search is performed in the LPCCC image for a higher cross-correlation coefficient as the best cross-correlation coefficient to achieve temporal mapping between frames of the test and reference video sequences.