Title :
Forward adaptive KLT coding
Author :
Davila, Carlos E.
Author_Institution :
Electr. Eng. Dept., Southern Methodist Univ., Dallas, TX
Abstract :
A framework for implementing the forward adaptive Karhunen-Loeve Transform (FAKLT) is described. Unlike backward adaptive methods, FAKLT computes transform coefficients using basis vectors derived from the most recent signal frame. As a result, it exhibits improved energy compaction compared to the backward adaptive KLT. The method encodes only the KLT coefficients and a small amount of side information, the KLT basis vectors (eigenvectors) are not encoded.
Keywords :
Karhunen-Loeve transforms; adaptive codes; data compression; eigenvalues and eigenfunctions; eigenvector; forward adaptive KLT coding; forward adaptive Karhunen-Loeve transform; Adaptive systems; Autocorrelation; Compaction; Compression algorithms; Data compression; Decoding; Eigenvalues and eigenfunctions; GSM; Karhunen-Loeve transforms; Transform coding; Adaptive systems; Data compression; Eigenvalues and eigenfunctions; Karhunen-Loeve transforms;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2009. ICASSP 2009. IEEE International Conference on
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-2353-8
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2009.4960006
