【摘要】 对于胎心率分析和胎儿状况评估而言,胎心率基线估计十分重要。为了使现有胎心率基线更为准确、更符合胎心率曲线,本文提出了一种胎心率基线修正算法。首先,本算法找出并修正现有胎心率基线中的偏差部分,再对整条基线进行多次平滑,最后得到修正后的基线。为了评估基线修正算法的性能表现,本文将一种胎心率基线估计算法和基线修正算法结合在一起,并与两种现有的基线估计算法进行了比较。结果表明,包含基线修正算法在内的基线评估算法在分析准确性、运算效率方面均有不错表现,这也证实基线修正算法的有效性。更多还原

【Abstract】 Fetal heart rate(FHR)baseline estimation is of significance for the computerized analysis of fetal heart rate and the assessment of fetal state.In our work,a fetal heart rate baseline correction algorithm was presented to make the existing baseline more accurate and fit to the tracings.Firstly,the deviation of the existing FHR baseline was found and corrected.And then a new baseline was obtained finally after treatment with some smoothing methods.To assess the performance of FHR baseline correction algorithm,a new FHR baseline estimation algorithm that combined baseline estimation algorithm and the baseline correction algorithm was compared with two existing FHR baseline estimation algorithms.The results showed that the new FHR baseline estimation algorithm did well in both accuracy and efficiency.And the results also proved the effectiveness of the FHR baseline correction algorithm.更多还原