脑电数据处理软件中关键算法的实现

发布时间：2018-10-05 13:32

【摘要】：脑是身体的核心。为了研究脑功能，我们引入了脑电（Electroencephalogram，EEG）。脑电映射了身体状态及活动情况。头皮上的不同位置因身体的变化及活动而产生了不同的生理电信号，这个电信号即是脑电信号。所有导联呈现出的脑电，展现出大脑的活动规律。为了研究脑电信号，我们实验室发展了很多算法，在算法方面已有了十余年的积累与沉淀。国际上已经有了几款脑电信号处理软件，对国际上的脑电的研究工作起到了很大促进作用，但售价不菲，且数据格式都不相同，软件处理后的信号之间无法交流。基于国内在脑电软件上的空缺，我们把实验的算法如眼电伪迹去除、源定位等以及独有的零参考（ReferenceElectrodeStandardizationTechnique，REST），整理到了脑电信号分析处理软件中，以便供国内大量从事脑电行业的实验机构使用；我们集中了国际当今主流脑电软件的数据格式于我们的软件，期望在国际上也可以起到一个促进作用。本文工作主要来源于三年研究生期间的软件项目，本软件在原有的框架基础上进行功能扩展与完善，扩展的功能主要有REST功能、多种数据格式的读取与存储以及他们之间格式的相互转换等、电极的读取与匹配、LORETA头模型切片的读取及坐标匹配、滤波功能、PCA功能、眼电伪迹去除功能、多线程功能、界面的设计与功能的连接与实现等等，同时为了满足实验室的科研工作还开发了一些比较实用的软件功能，如数据剪切功能，将有用信息在大数据中提取出，，如批处理功能，可以批量进行参考转换，支持包括REST的任意参考转换功能，在开发的过程中为了验证功能的正确性，同时开发了测试功能，保证软件的质量。
[Abstract]:The brain is the core of the body. In order to study brain function, we introduced Electroencephalogram,EEG. EEG maps the state and activity of the body. Different positions on the scalp produce different physiological signals as a result of changes and movements in the body, which are called EEG signals. All leads show EEG, showing the pattern of brain activity. In order to study EEG signals, many algorithms have been developed in our laboratory, which have accumulated and precipitated for more than ten years. There have been several kinds of EEG processing software in the world, which has played a great role in the research of EEG in the world, but the price is not cheap, and the data format is different, so the signals processed by the software can not communicate. Based on the lack of EEG software in China, we put the experimental algorithms such as eye electrical artifacts removal, source location and unique zero reference (ReferenceElectrodeStandardizationTechnique,REST) into the EEG analysis and processing software. In order to be used by a large number of experimental institutions engaged in EEG industry in China, we have concentrated the data format of current mainstream EEG software in our software and hope to play a promoting role in the international market. The work of this paper mainly comes from the software project of three years graduate student period, this software carries on the function extension and consummation on the basis of the original frame, the extended function mainly has the REST function, The reading and storage of various data formats and the conversion between them, the reading and matching of electrode and the reading and coordinate matching of LORETA head model slices, the filtering function of PCA, the removal of eye electrical artifacts, the multithread function, etc. At the same time, in order to meet the needs of scientific research in the laboratory, some practical software functions, such as data cutting function, have been developed to extract useful information from big data, such as batch processing. Batch reference conversion can be carried out, including any reference conversion function of REST. In order to verify the correctness of the function during the development process, the testing function is developed to ensure the quality of the software.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：R318.0

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