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:
Nov. 13, 2001
Filed:
May. 12, 1998
Jungwoo Lee, Princeton, NJ (US);
Sarnoff Corporation, Princeton, NJ (US);
Abstract
In an image encoding scheme (e.g., MPEG-2) in which two or more different sets of motion vectors are generated for each image that is to be encoded using motion estimation, one or more sets of motion vectors are generated by applying temporal scaling to one or more other sets of motion vectors that may be generated using conventional motion estimation techniques. Using such a temporal interpolation scheme to generate one or more of the sets of motion vectors for each image can greatly reduce the processing load on an image encoding system for motion estimation processing. Local motion estimation can optionally be performed on the estimates generated using temporal interpolation to select final motion vectors, e.g., for use in subsequent image compression processing that relies on motion compensation.