Contribution to Single-Channel Fetal Electrocardiogram Identification

Abstract

This paper presents the recognition of fetal ECG signals from a single-channel recording. The Continuous Wavelet Transform generates a two-dimensional representation of a single-dimension input containing fetal electrocardiogram waves, which are accurately located and isolated. By segmenting this 2D representation using Otsu's method, the continuous wavelet transform of each wave may be estimated. The temporal expression of the wave is then rebuilt by calculating the Inverse Continuous Wavelet Transform. The continuity between each sample allows us to follow the waves from one image to the next. Consequently, the complete profile can be automatically processed.

Integration of Time-Frequency Analysis and Regularization Technique for Improved Identification of Fetal Electrocardiogram

“…These initial results demonstrate promising performance, providing a solid foundation for further analysis and improvement through regularization techniques. By comparing the obtained results with recent works in the field, as demonstrated in references [6,7,8,9], it can be concluded that the achieved results are optimal. These results surpass the performance reported in the referenced studies, indicating a significant improvement in the signal separation process.…”