Converting EEG, ECG and other paper legated biomedical maps into digital signals

André Ricardson Gomes e Silva, Helio de Oliveira, Rafael Lins

DOI: 10.14209/sbrt.2007.31203

Evento: XXV Simpósio Brasileiro de Telecomunicações (SBrT2007)

Keywords: analog-to-digital converter digitalization of medical maps digital ECG digital EEG

Abstract

A number of laboratories, medical institutes and hospitals have only available analogical equipments, particularly those equipped with plottingters. The storage of these signals is rather inefficient and the data processing unfeasible. In this challenging scenario, a substantial advance can be performed by designing acquisition cards with interface to microcomputers, instead of purchasing sophisticated high-cost computerized equipments. This kind of up-grade can be beneficial to small laboratories with modest resources. Nevertheless, it is not a trivial task to assemble or to design a set-box to convert signals. This study describes the development of a software tool intended to convert a version of signals and/or spectra digitalized by a scanner (files of the extension .jpg .tif .bmp etc.) to a data file, which can be efficiently processed and stored. It deals with an alternative approach to the classical A/D conversion without requiring any specific hardware.

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