Fetal Movement Dataset Recorded Using Four Inertial Measurement Units
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The dataset contains tri-axial accelerometer and tri-axial gyroscope readings from the four IMUs and labels. There are three sub-datasets, which have different ground-truth labelling configurations, included in this dataset. Please note that the labelling is subjective to the mother's perception. The dataset, as a whole, contains recordings spanning 14 weeks from 26th week to 39th week and in total, about 71 hours of recordings. The three sub-datasets included are: Sub-dataset One: In this sub-dataset, only the occurrence of the particular type of fetal movement known as the fetal kick is considered for ground-truth labelling. Sub-dataset Two: All types of fetal movement felt by the mother -- including trunk movement, isolated limb movement, and general body movement -- were considered for ground truth-labelling as fetal movements in this sub-dataset. Sub-dataset Three: In this sub-dataset, the emphasis was given to the classification of different types of fetal movements. Three types of fetal movements are labelled: trunk movement, isolated limb movement, and general body movement. Additional data are provided in three additional 'csv' files, which contains the record number, the Period of Amenorrhoea (POA), start time, and end time of each recording. Also, additional details about the mother and the baby are provided in the README file. For more details, refer to the README.pdf.
本数据集包含来自四个惯性测量单元（Inertial Measurement Unit，简称IMU）的三轴加速度计与三轴陀螺仪读数，以及对应的标注标签。本数据集包含三个子数据集，三者的真值标注配置各不相同。请注意，本次标注基于受试母亲的主观感知。整体数据集的录音时长覆盖14周，从妊娠第26周至第39周，总时长约71小时。 本次纳入的三个子数据集具体如下： 子数据集一：该子数据集仅将被称为胎儿踢动的特定类型胎儿胎动作为真值标注对象。 子数据集二：本子数据集将受试母亲感知到的所有类型胎儿胎动——包括躯干运动、孤立肢体运动与全身运动——均纳入胎儿运动的真值标注范畴。 子数据集三：该子数据集重点聚焦不同类型胎儿胎动的分类任务，共标注三类胎儿胎动：躯干运动、孤立肢体运动与全身运动。 此外，本数据集还提供三个额外的CSV格式文件，其中包含每条录音的记录编号、妊娠停经周期（Period of Amenorrhoea，简称POA）、录音开始时间与结束时间。README文件中还包含受试母亲与胎儿的额外详细信息，如需了解更多细节，请参阅README.pdf。
