A near-lossless image compression scheme is presented. It is essentially a differential pulse code modulation (DPCM) system with a mechanism incorporated to minimize the entropy of the quantized prediction error sequence. With a "near-lossless" criterion of no more than a d gray-level error for each pixel, where d is a small nonnegative integer, trellises describing all allowable quantized pred...

System reliability is an important design measure in many systems engineering fields. In this paper, we propose a new neural network method combining stochastic competitive scheme and hysteresis quantized neuron for the reliability optimization. In the proposed algorithm, the neurons are divided into two classes: One is binary neurons with stochastic competitive scheme and the other is quantize...

This paper presents an adaptive wavelet-based blind digital watermarking scheme for copyright protection. The wavelet coefficients in the same spatial directions at different decomposition levels are grouped into family trees. The watermark is embedded by quantizing the family trees. The trees are adaptively quantized using the characteristics of the human visual system in the wavelet domain so...

The quantized version of a discrete Knizhnik-Zamolodchikov system is solved by an extension of the generalized Bethe Ansatz. The solutions are constructed to be of highest weight which means they fully reflect the internal quantum group symmetry.