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:
Dec. 02, 2003
Filed:
Jan. 18, 2000
Applicant:
Inventors:
Siu-Leong Iu, San Jose, CA (US);
Yun-Ting Lin, Ossining, NY (US);
Assignee:
Digital Video Express, L.P., Herndon, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/66 ; H04N 7/12 ;
U.S. Cl.
CPC ...
H04B 1/66 ; H04N 7/12 ;
Abstract
A motion transform is implemented for calculating the motion field between two images. An optical flow calculator is configured for generating an image motion vector field by iteratively comparing a predicted image with a second image frame, the predicted image being produced based upon a first memory frame and image gradients generated according to a motion estimate that is produced according to a transform function using transform coefficients. The transform coefficients are estimated based upon a previously determined image gradient.