Title :
Real time processing algorithm for high resolution fetal heart rate estimation
Author :
Kim, Sun I. ; Lee, Eung G. ; Lee, Yong H. ; Park, Moon I. ; Lee, Doo S.
Author_Institution :
Dept. of Med. Inf., Hanyang Univ., Seoul, South Korea
Abstract :
Despite the simplicity of processing, a conventional autocorrelation function (ACF) method for the precise determination of fetal heart rate (FHR) has many problems. In case of weak or noise corrupted Doppler ultrasound signal, the ACF method is very sensitive to the threshold level and data window length. It is very troublesome to extract FHR when there is a data loss. To overcome these problems, the high resolution pitch detection algorithm is adopted to estimate the FHR. The period of fetal sound is determined from the cross-correlation of two interconnected segments by its maximum value with a constant threshold. However, this method requires intensive calculations. In this paper, we suggest the fast new algorithm for real time processing
Keywords :
cardiology; autocorrelation function method; constant threshold; cross-correlation; data loss; data window length; fetal sound; high resolution fetal heart rate estimation; high resolution pitch detection algorithm; interconnected segments; noise corrupted Doppler ultrasound signal; real time processing algorithm; threshold level; weak Doppler ultrasound signal; Acoustic noise; Autocorrelation; Biomedical engineering; Data mining; Detection algorithms; Fetal heart rate; Moon; Signal resolution; Sun; Ultrasonic imaging;
Conference_Titel :
Engineering in Medicine and Biology Society, 1994. Engineering Advances: New Opportunities for Biomedical Engineers. Proceedings of the 16th Annual International Conference of the IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-2050-6
DOI :
10.1109/IEMBS.1994.415436
