In this paper a new model for compression of Laplacian source is given. This model consists of hybrid quantizer whose output levels are coded with Golomb-Rice code. Hybrid quantizer is combination of uniform and nonuniform quantizer, and it can be considered as generalized quantizer, whose special cases are uniform and nonuniform quantizers. We propose new generalized optimal compression functi...

This paper presents a novel model compensation (MC) method for the features of mel-frequency cepstral coefficients (MFCCs) with signal-to-noise-ratio(SNR-) dependent nonuniform spectral compression (SNSC). Though these newMFCCs derived from a SNSC scheme have been shown to be robust features under matched case, they suffer from serious mismatch when the reference models are trained at different...

Extending the analysis of the evolution of pore humidity and carbonation presented in a preceding paper by Ferretti and Baz ̆ant, this paper analyzes the redistribution in time of vertical normal stresses across the multiple-leaf wall of ancient towers, using the example of collapsed Pavia Tower. It is shown that stress redistribution due to nonuniform shrinkage and nonuniform creep across the w...

This paper investigates the optimality of the binning approach in distributed source coding for both uniform and nonuniform sources. While the algebraic binning scheme is optimal for uniform sources both asymptotically and at finite lengths, it is shown that the optimality holds only asymptotically for nonuniform sources. Highperformance turbo codes are used with the binning scheme on several s...

This paper proposes a new feature extraction method based on temporal trajectory filtering and nonuniform spectral compression and examines its performance with two tasks in noisy environments. Temporal trajectory filtering is effective for robust speech recognition in noisy environments, due to human hearing is more sensitive to relative values rather than absolute values and the effect of add...

Loudness recruitment is a symptom of sensorineural hearing loss affecting the inner ear when the threshold of hearing is raised. The increase of the hearing threshold is often nonuniform across the range of audible frequencies and loudness perceptions are distorted. One method used to compensate for this type of hearing disorder is amplitude compression followed by equalization. In the present ...

We present a new compression algorithm for two-and three-dimensional volume data (such as images or continuous fields). The technique is based on orthogonal projection of the data to spaces of polynomial functions and it works analogously to adaptive hp-FEM for the solution of partial differential equations. The algorithm has extremely high compression rates and guarantees to achieve any prescr...

BACKGROUND Biventricular direct cardiac compression (DCC) has the potential to support the failing heart without the complications associated with a blood/device interface encountered with the use of current ventricular assist devices. A clinically designed DCC device that provides compression pressure around the base of the heart in synchrony with native ventricular contractions was evaluated ...

Transform coding of images and video with nonuniformly sampled chrominance is proposed for applications requiring very high compression. The proposed coding scenario applies adaptive subsampling of chrominance according to local activity detected in luminance component. Blockbased transform coding is adopted to coding of images whose samples are taken from an irregular grid. This irregular grid...