Title :
Multiconstraint Wiener-based motion compensation using wavelet pyramids
Author :
Baaziz, Nadia ; Labit, Claude
Author_Institution :
Visual Commun. Group, INRS Telecommunications, Verdun, Que., Canada
fDate :
9/1/1994 12:00:00 AM
Abstract :
We have investigated an original motion estimation method that exploits several frequency subbands of wavelet pyramids using a multigrid-multiconstraint strategy. A recursive and iterative solution based on the Wiener approach allows to take into account the reconstruction quality criterion that is crucial to image coding. Experiments show its performances in terms of compression ratio, reconstruction quality, and reduction of implementation complexity compared to a monoresolution case
Keywords :
constraint theory; filtering and prediction theory; image coding; image reconstruction; image sequences; iterative methods; motion estimation; wavelet transforms; Wiener filter; compression ratio; frequency subbands; image coding; image sequences; implementation complexity reduction; iterative solution; motion compensation; motion estimation; multigrid-multiconstraint strategy; reconstruction quality criterion; recursive solution; wavelet pyramids; Band pass filters; Frequency; Image coding; Image reconstruction; Iterative algorithms; Motion compensation; Motion estimation; Redundancy; TV; Wavelet transforms;
Journal_Title :
Image Processing, IEEE Transactions on
