Title
Motion estimation and representation for arbitrarily shaped image regions
Abstract
This paper discusses the problem of motion compensated prediction in a segmentation based video coding scheme. The problem is considered in the framework of a generic video coder utilizing spatial image segmentation and a polynomial model of the motion vector field for each image region. It is shown that very impressive reductions in prediction error can be achieved by this approach compared to traditional block matching. The cost of encoding the motion information is also addressed. We derive an analytical method for the reduction of the number of motion coefficients, which is optimal is the sense of the least increase in the prediction error. Finally, we derive a low complexity method for motion assisted merging of regions resulting from spatial segmentation which leads to a dramatic reduction in the number of regions.
Year
DOI
Venue
1995
10.1109/ICIP.1995.537448
ICIP
Keywords
Field
DocType
motion coefficient,image region,motion information,spatial segmentation,motion estimation,motion vector field,analytical method,spatial image segmentation,shaped image region,generic video coder,prediction error,dramatic reduction,encoding,motion compensation,polynomial model,merging,polynomials,tires,image segmentation
Computer vision,Scale-space segmentation,Quarter-pixel motion,Motion field,Pattern recognition,Polynomial,Segmentation,Computer science,Motion compensation,Image segmentation,Artificial intelligence,Motion estimation
Conference
ISBN
Citations 
PageRank 
0-8186-7310-9
3
0.57
References 
Authors
1
3
Name
Order
Citations
PageRank
M. Karczewicz1560104.53
J. Nieweglowski230.57
P. Haavisto3468.00