Download Information Processing and Security Systems by Khalid Saeed, Jerzy Pejas PDF

By Khalid Saeed, Jerzy Pejas

Information Processing and safeguard platforms is a set of 40 papers that have been initially awarded at a world multi-conference on complex desktops (ACS) and laptop info platforms and business administration functions (CISIM) held in Elk, Poland. This quantity describes the most recent advancements in complicated desktops and their purposes inside man made intelligence, biometrics and knowledge expertise protection. the amount additionally contains contributions on computational equipment, algorithms and functions, computational technology, schooling and business administration applications.

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These deficiencies and the remaining superfluous incomplete cells on image corners are rectified by the following novel approaches. 1 Absolute Cell Contour Extraction The preliminary image processing steps implemented in the VI environment employ mathematical morphology [9]. The morphological operation applied to the procedure uses structuring elements, which systematically move across the entire image, matching representative pixels with corresponding pixels, either retaining or deleting pixels to suit the application.

A 20—•—10 o 5 I ol _^ 11- ~" ; 50 J 1 B 1 i ~~~^A - 440, 1 1 1 1 1 1 30 j 1 1 1 1 1 1 T 1 -4—i 200 I | 250 300 Fundametnal Frequency [Hz] 350 20 j 150 200 250 300 350 400 Fundametnal Frequency [Hz] Figure 6. Decomposition algorithm results with static fundamental frequency (left) and varying fundamental frequency (right) Conclusions This paper presented a speech model that is based on decomposition of speech signal into periodic and noise components. Unlike well-known Harmonic+Noise (HNM) and MBE models of speech model presented in this paper is designed with respect to quasiperiodic speech signal nature.

At the early stage an acoustic signal entering the ear is transformed to mechanic oscillations by an ear-drum and stones of a middle ear. Those oscillations excite complex spatio-temporal vibration along the basilar membrane of the cochlea. The behavior of those vibrations is as follows, different tone frequencies localized at different cochlear points. Thus, the basilar membrane can be described at an electric level as the work of filters bank with a high degree of pass-bands overlapping. The central auditory stage analyzes further the auditory spectrum into more elaborate representation, interprets them, and separates the different components and parameters, associated with different sound percepts.

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