US 6,519,005 B2
Method of concurrent multiple-mode motion estimation for digital videoGeneral
US 6,519,005 B2
Method of concurrent multiple-mode motion estimation for digital video
Tech Center:
2600 Communications
Examiner:
Andy S. Rao
Art Unit:
2613 Computer Graphic Processing, 3D Animation, Display Color Attribute, Object Processing, Hardware and Memory
Agent:
Russell Gross
Inventors:
MICHAEL BAKHMUTSKY; KARL WITTIG
Assignee:
Priority:
04/30/99
Filed:
04/30/99
Granted:
02/11/03
Expiration:
04/30/19
Abstract
A method for motion coding an uncompressed digital video data stream such as an MPEG-2 digital video data stream. The method includes the steps of comparing pixels of a first pixel array in a picture currently being coded with pixels of a plurality of second pixel arrays in at least one reference picture and concurrently performing motion estimation for each of a plurality of different prediction modes in order to determine which of the prediction modes is an optimum prediction mode determining which of the second pixel arrays constitutes a best match with respect to the first pixel array for the optimum prediction mode, and, generating a motion vector for the first pixel array in response to the determining step. The method is implemented in a device such as a motion estimation search system of a digital video encoder. In one embodiment, the method and device are capable of concurrently determining performing motion estimation in each of the six different possible prediction modes specified by the MPEG-2 standard.
Cooperative Patent Classification (CPC)
H04H04N19/105H04N