Publications [#338958] of Lawrence Carin

Papers Published

1. Chang, S; Carin, L, Kernel matching pursuits prioritization of wavelet coefficients for SPIHT image coding, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, vol. 3 (September, 2004), pp. III649-III652, Montreal, Que, Canada
   (last updated on 2024/12/31)

   Abstract:
   The set partitioning in hierarchical trees (SPIHT), an efficient wavelet-based progressive image-compression scheme, is oriented to minimize the mean-squared error (MSE) between the original and decoded imagery. In this paper, we use the kernel matching pursuits (KMP) method to estimate the importance of each wavelet sub-band for distinguishing between different textures segmented by an HMT mixture model. Before the SPIHT coding, we weight the wavelet coefficients, with the goal of achieving improved image-classification results at low bit rates. A modified SPIHT algorithm is proposed to improve the coding efficiency. The performances of the original SPIHT and the modified SPIHT algorithms are compared.

   Keywords:
   Image compression;Image segmentation;Algorithms;Problem solving;Parameter estimation;Markov processes;Mathematical models;