Conjugate gradient methods for designing vector quantizers
E. Yair, K. Zeger, A. Gersho · International Conference on Acoustics, Speech, and Signal Processing · 2002
A technique for efficient vector quantization (VQ) design based on conjugate-gradient search methods is introduced. It is demonstrated experimentally that the new design algorithm performs better than the generalized Lloyd algorithm in many cases in terms of computation time and/or quality of the codebook it produces.>