Preprocessing process and device for motion estimation
First Claim
1. Method of preprocessing a video image sequence consisting of a succession of interlaced frames for estimating motion between a first and a second frame, characterized in that a temporal filtering is performed on the basis of at least two input frames so as to deliver each of the two frames utilized by the motion estimator.
5 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to a method of preprocessing a video image sequence consisting of a succession of interlaced frames for estimating motion between a first and a second frame, characterized in that a temporal filtering is performed on the basis of at least two input frames so as to deliver each of the two frames utilized by the motion estimator. The applications relate to motion estimators, in the field of video image compression or the conversion of television standards.
-
Citations
12 Claims
- 1. Method of preprocessing a video image sequence consisting of a succession of interlaced frames for estimating motion between a first and a second frame, characterized in that a temporal filtering is performed on the basis of at least two input frames so as to deliver each of the two frames utilized by the motion estimator.
-
11. Preprocessing device receiving a video image sequence consisting of a succession of interlaced frames for a motion estimation between a first and a second frame, characterized in that it comprises:
-
a memory for storing four successive interlaced frames, vertical filters for transforming these four stored interlaced frames into four progressive frames, a temporal filter for delivering two filtered frames, the first on the basis of the progressive frames corresponding to the first three stored frames and the second on the basis of the progressive frames corresponding to the last three stored frames, the motion estimation being carried out on the basis of these two filtered frames. - View Dependent Claims (12)
-
Specification