Title :
Local cosine bases in two dimensions
Author :
Kovacevic, Jelena
Author_Institution :
Innovations for Lucent Technol., Bell Lab., Murray Hill, NJ, USA
fDate :
11/1/1997 12:00:00 AM
Abstract :
We construct two-dimensional (2-D) local cosine bases in discrete time. Solutions are offered both for rectangular and nonrectangular lattices. In the case of nonrectangular lattices, the problem is solved by mapping it into a one-dimensional (1-D) equivalent problem
Keywords :
band-pass filters; discrete time filters; filtering theory; lattice theory; signal sampling; time-domain analysis; two-dimensional digital filters; discrete time cosine modulated filter banks; image coding; nonrectangular lattices; nonrectangular sampling; one-dimensional equivalent problem; rectangular lattices; rectangular sampling; two-dimensional local cosine bases; Audio coding; Discrete cosine transforms; Filters; Image coding; Lattices; Prototypes; Sampling methods; Symmetric matrices; Time frequency analysis; Two dimensional displays;
Journal_Title :
Image Processing, IEEE Transactions on
