We propose a new approach for modeling auditory masking based on gammatone filters for application areas including speech/audio coding and audio watermarking. Besides the use of gammatone filters, this model differs from existing audio coding psychoacoustical models (e.g., the ones used in MPEG), in taking into account the contribution of a range of filters in computing the distortion, rather t...

New filters for multichannel image processing are introduced and analysed. The proposed methodology constitutes a unifying and powerful framework for multichannel signal processing. The new filters use fuzzy membership functions based on different distance measures among the image vectors to adapt to local data in the image. Fuzzy aggregators are utilized to determine the weights in the propose...

Measures of the local phase of potential fields can be a useful aid to their interpretation. There are several variations in use, such as the tilt angle, tilt derivative and the Theta map. This paper compares the results of these filters, and introduces some new phase-based filters which show improved performance as edge detectors in different ways. The filters are demonstrated on synthetic gra...

Both ZnO and PZT Thin Film Bulk Acoustic Resonator filters were fabricated, tested and modeled in this study. The development of an accurate Mason model allows the effect of particular parasitic components on the microwave s-parameters in the region of the series and parallel resonances to be identified. The parasitic components that limit the performance of our ZnO and PbZr0.3Ti0.7O3 Thin Film...

New approach to hardware FIR filter implementation is described in this paper. Method includes the conversion to the frequency domain, as well as the principles of residue number systems and number-theoretic transforms. Parameterized RTL IP-core generators were implemented for both conventional and developed methods. These IP generators were used to implement different devices for different fil...

This paper the authors mainly concern with the best order of the FIR filter using Boxcar windowing method. Simulation results give encouraging results regarding best order of the FIR Filters among the orders. A new method of implementation of best order of FIR Filter is proposed using MATLAB SIMULINK. Interesting results are obtained by comparing the different order filter’s cut-off frequency t...

In this paper, we introduce a fast alternating method for reconstructing highly undersampled dynamic MRI data using 3D convolutional sparse coding. The proposed solution leverages Fourier Convolution Theorem to accelerate the process of learning a set of 3D filters and iteratively refine the MRI reconstruction based on the sparse codes found subsequently. In contrast to conventional CS methods ...

Health care decision making in severely ill patients presents many difficult medical, ethical and legal problems. Physicians, including anaesthesiologists, are frequently confronted with dilemmas regarding the appropriateness of risky interventions and the balance of potential benefits versus risks. The risks include not only death and the pain and suffering that are related to the intervention...