Object structure

Creator:

Strumiłło, Paweł ; Strzelecki, Michał

Contributor:

Korbicz, Józef - red. ; Uciński, Dariusz - red.

Title:

Application of coupled neural oscillators for image texture segmentation and modeling of biological rhythms

Group publication title:

AMCS, Volume 16 (2006)

Subject and Keywords:

biological rhythms ; nonlinear oscillations ; networks of synchronised oscillators ; texture segmentation ; cardiac pacemakers

Abstract:

The role of relaxation oscillator models in application fields such as modeling dynamic systems and image analysis is discussed. A short review of the Van der Pol, Wilson-Cowan and Terman-Wang relaxation oscillators is given. The key property of such nonlinear oscillators, i.e., the oscillator phase shift (called the Phase Response Curve) as a result of external pulse stimuli is indicated as a fundamental mechanism to achieve and sustain synchrony in networks of coupled oscillators. ; It is noted that networks of such oscillators resemble a variety of naturally occurring phenomena (e.g., in electrophysiology) and dynamics arising in engineering systems. Two types of oscillator networks exhibiting synchronous behaviors are discussed. ; The network of oscillators connected in series for modeling a cardiac conduction system is used to explain causes of important cardiac abnormal rhythms. Finally, it is shown that a 2D network of coupled oscillators is an effective tool for segmenting image textures in biomedical images.

Publisher:

Zielona Góra: Uniwersytet Zielonogórski

Date:

2006

Resource Type:

artykuł

Pages:

513-523

Source:

AMCS, volume 16, number 4 (2006) ; click here to follow the link

Language:

eng

Rights:

Biblioteka Uniwersytetu Zielonogórskiego