Biomedical subjects

C Metaxaki-Kossionides

Publications and source records attributed to C Metaxaki-Kossionides.

3 recordsLinked to original sources

PubMed1992

Blood analysis using black and white digital images.

Image processing offers a powerful tool for medical diagnosis by visual inspection. Our proposed system considers the blood analysis problem. The system processes black and white blood images obtained from a CCD camera through a microscope. Different categories of cells are recognized, counted and classified into white cells, red cells and blood petals. The white cells are further treated for their classification, according to the morphological characteristics of their nuclei. The final classification is printed in special format for the physician.

Algorithms↗

PubMed1988

Method for an automatic analysis of the ECG.

A method is presented for an analysis of the ECG. Using cubic spline techniques we proceed first to a smoothing of the signal and then to the elimination of baseline drift. The properties of the calculated derivatives are used to establish criteria for the identification of the ECG waves and the measurement of their essential parameters. The complete procedure can be carried out by a computer, without human intervention. The results of this fully automatic procedure can be used directly as a means of classifying the ECG.

Algorithms↗

PubMed1981

A method for compression - reconstruction of ECG signals.

A new method of data compression - reconstruction for ECG signals is presented. The method gives the ability (a) to control the final accuracy of the reconstructed signal before the transmission (or storage) of samples and (b) to control the compression ratio (CR) in order to obtain an optimum use of the channel capacity. The main advantage of the method was found to be the very strong improvement of the local re-construction during the active periods. Indeed, we can obtain CR values between 3 and 10 with local root mean square error (r.m.s.e.) improvement compared to the total r.m.s.e. value, by 85% during the active period.

Electrocardiography↗