研究生: |
江銘文 Ming-Wen Jiang |
---|---|
論文名稱: |
基於毫米波FMCW雷達之非接觸式手指輕敲實驗之研究 A Study of Contactless Finger Tapping Test based on Millimeter Wave FMCW Radar |
指導教授: |
謝松年
Sung-Nien Hsieh |
口試委員: |
林丁丙
Ding-Bing Lin 曾昭雄 Chao-Hsiung Tseng 呂政修 Jenq-Shiou Leu 謝松年 Sung-Nien Hsieh |
學位類別: |
碩士 Master |
系所名稱: |
電資學院 - 電子工程系 Department of Electronic and Computer Engineering |
論文出版年: | 2022 |
畢業學年度: | 110 |
語文別: | 中文 |
論文頁數: | 55 |
中文關鍵詞: | 調頻連續波雷達 、手指輕敲 、卷積神經網路 |
外文關鍵詞: | FMCW radar, finger tapping test, 1D CNN |
相關次數: | 點閱:241 下載:0 |
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隨著全球逐漸邁向高齡化社會,與高齡相關的神經退化性疾病受到更多重視,其中第二常見的疾病為帕金森氏症(Parkinson's disease, PD),近年來甚至有年輕化的趨勢。患者會有運動症狀及非運動症狀,隨著時間病情會漸漸惡化,提早診斷有助於減緩病情發展。其中運動症狀主要有顫抖、肌肉僵硬、動作遲緩、姿勢不穩,診斷方式為透過對運動狀態的評估。常見的方法主要集中在穿戴式裝置上,使用加速度計、陀螺儀和表面肌電圖來獲得運動症狀的相關訊息。
本論文提出使用調頻連續波(frequency-modulated continuous-Wave, FMCW)毫米波雷達對「手指輕敲實驗」做非接觸式測量,將雷達測量的相位變化轉換成手指的位置變化來獲得手指運動時位置變化的時間序列資料。
在傳統的手指輕敲實驗中往往由醫生直接用眼睛觀察,判斷上較為主觀以及模糊。有別於傳統方式此實驗方式的優點在於將實驗結果量化後使用大量資料讓模型學習後擁有判斷異常的能力,且不須使用穿戴式裝置。在本論文中所提出的實驗中要求受試者跟隨固定頻率之節拍器輕敲手指。先大量蒐集正常資料與模擬異常的資料,再經由深度學習的方式,使用一維卷積神經網路模型區分出正常資料與模擬異常資料。
As global aging, increasing attention has been paid to neurodegenerative diseases related to advanced age, the second most prevalent disease is Parkinson's disease (PD), the prevalence of Parkinson's disease rising in younger adults. Patients have motor symptoms and non-motor symptoms, and the disease will gradually worsen over time. Early diagnosis may help slow down disease progression. The motor symptoms mainly include Tremor, Rigidity, Bradykinesia (slowness of movement), and Postural instability. The diagnosis method is through the motor assessment. Common approaches focus on wearable devices, using accelerometers, gyroscopes or surface electromyography to obtain information about motor symptoms.
This paper proposes to use frequency-modulated continuous-wave (FMCW) millimeter-wave radar to perform non-contact measurement of Finger Tapping Test (FTT), and convert the phase change measured by the radar into the position change of the finger to obtain the time series data of finger's movement track.
The advantage of method in this paper is that after quantifying the experimental results, a large amount of data is used, so that the model has the ability to judge anomaly after learning. In the experiments presented, subjects were asked to tap their fingers following a fixed-frequency metronome. Normal data and simulated anomaly data are collected first, and then use one dimensional convolutional neural networks (1D-CNN) model, normal data and simulated abnormal data are distinguished.
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