Method and apparatus for motion vector field encoding
0 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for representing motion in a sequence of digitized images derives a dense motion vector field and vector quantizes the motion vector field.
29 Citations
60 Claims
-
1-37. -37. (canceled)
- 38. A method of processing data relating to an image in a sequence of digitized images comprising deriving a motion vector field for the image and smoothing the motion vector field by replacing a given motion vector by a new motion vector by averaging motion vectors comprising neighbouring motion vectors, the method further comprising identifying where motion discontinuities occur in the image and omitting a motion vector or vectors from the averaging if they are separated from the given motion vector by a motion discontinuity.
- 40. A method of processing data relating to an image in a sequence of digitized images comprising deriving a motion vector field for the image and smoothing the motion vector field by replacing a given motion vector by a new motion vector derived by averaging motion vectors comprising neighbouring motion vectors and using a prediction error.
- 47. A method of representing motion in a sequence of digitized images comprising generating and coding a plurality of versions of a motion vector field at different resolutions.
- 54. Apparatus for representing motion in a sequence of digitized images comprising means for generating and coding a plurality of versions of a motion vector field at different resolutions.
Specification