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:
Feb. 05, 2002
Filed:
Sep. 14, 1998
Applicant:
Inventor:
Timothy John Borer, Surrey, GB;
Assignee:
Innovision Limited, Surrey, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/00 ;
U.S. Cl.
CPC ...
G06K 9/00 ;
Abstract
A technique for generating motion vectors in video and film signal processing uses constraint equation based motion estimation. Simplifications of the processing and hardware are made possible by generating motion vectors based on the normalized constraint equation. The temporal and spatial image gradients are calculated using temporal and spatial differentiators ( ). An angle (&thgr;) corresponding to the orientation of the spatial image gradient vector and the motion speed (vn) in the direction of the vector are calculated using apparatus including a rectangular to polar coordinate converter ( ). &thgr; and vn are the parameters of the normalized constraint equation.