博碩士論文 93226066 詳細資訊


姓名 高典佑(Tian-Yu Kao)  查詢紙本館藏   畢業系所 光電科學與工程學系
論文名稱 光學三角量測於中醫脈搏的應用
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摘要(中) 中醫把脈是以經驗的傳承、古書的意會以及個人長期經驗的累積,才能隱約把出病灶,其方法頗不科學,不像西醫有數據佐證作為判斷依據,如能以科學儀器將中醫脈搏科學化量化,如此便可更容易去探討脈搏脈象所表的身體狀況訊號。
本論文採用非接觸式的光學三角量測,利用SRD光源聚焦在皮膚上,接著透過CMOS影像感測器擷取跳動影像,再利用軟體分析光點的移動,推測出脈搏振幅跟頻率,本架構是改良了先前以雷射為光源的系統,使用SRD光源改良了雷射投射在皮膚上成像過大(251 112pixels)及光斑效應,造成在量測脈搏上的誤差,並用一參考光打在橈骨的位置,當作手的晃動,再取打在脈搏上光點的位移減掉此參考點,如此更逼近脈搏的跳動,改善了手晃動造成的誤差。
實驗架構經校準後,可解析到7μm。以及本論文測了三個主題:抽煙前後、吃辣前後、飯前飯後,分析出數據再透過統計方法做P值檢定,其得到結果各別如下:抽菸後左關振幅變大;吃辣後右寸振幅變大;吃飯後右關頻變大且振幅變大,左寸頻率變大。
抽煙前後、吃辣前後及吃飯前後量測,主要是提出數據感,有別於中醫把脈只能觸診憑感覺描述,無法定量的觀察,當然得在量更多的樣本,這樣數據描述會更詳實。
摘要(英) In Chinese medicine, the doctor feels the pulse to judge patients’’ condition. They learn the technique by teacher’s describing and book and himself experience. They didn’t have the data to describe patients’’ condition. It will be studied easily if the pulse be quantification.
We use no contact optical triangular measurement. The setup use SRD (Super Radiance Diode) for light source. And the light received by CMOS image sensor. Then we use MATLAB and Origin to analyze data. We finally get the amplitude and spectrum. The light was laser previously. Here, we use SRD to replace laser. Then the image on the skin will be small (251 112pixels). The light is so small that scattering effect will be weak. And we remove hand’s shake by a technique which is projecting another light to radius. So we can take the second light be a displacement which is hand’s shake. Take the original light data subtract from the second light data. So we can neglect hand’s shake. The result will approach true pulse.
After adjusting, resolution of experiment setup is 7μm. And we test three kind of stimulus subjects: smoking, spice and eating. We take statistics’ method P value to test the three conditions. Then the amplitude which is the position Guan of left hand is getting strong after smoking. The amplitude which is the position Cun of right hand is getting strong after eating peppery food. The amplitude and frequency are getting strong on Guan of right hand after eating. And the frequency is getting strong after eating.
In above three subject, it provide for sense of data that we can know how much amplitude is. But the number maybe can’t represent what Chinese medicine says. It need more sample to compile data to compare with Chinese medicine.
論文目次 摘要.....................................................I
Abstract.................................................II
致謝辭...................................................III
目錄.....................................................IV
圖目錄...................................................VII
表目錄...................................................X
第一章 緒論
1.1 前言..............................................1
1.2 研究背景與文獻回顧................................1
1.3 研究目的..........................................2
1.4 本論文之貢獻......................................2
第二章 原理.............................................3
2.1 三角原理...........................................3
2.2常用統計量..........................................4
2.2.1標準差........................................4
2.2.2生物統計上常用到的P值.........................5
2.3 離散傅立葉轉換與快速傅立葉轉換.....................12
2.3.1離散傅立葉轉換(DFT).........................12
2.3.2快速傅立葉轉換(FFT).........................15
2.4 光點中心位置的計算.................................22
第三章 實驗架構與方法...................................25
3.1 實驗架構...........................................25
3.1.1 三角關係.....................................25
3.1.2 系統光源.....................................26
3.1.3影像感測元件..................................28
3.2 實驗流程...........................................32
3.3取脈方式............................................34
3.4系統校正............................................35
3.4.1線性度校正....................................35
3.4.2頻率校正......................................37
3.4.3手晃動去除校正................................38
第四章 實驗結果.........................................39
4.1 實驗簡介...........................................42
4.2 抽菸前後脈搏變化...................................42
4.3 吃辣前後脈搏變化...................................43
4.4 飯前飯後脈搏變化...................................44
第五章 結論與外來展望...................................48
參考文獻.................................................49
參考文獻 [1] Warren J. Smith, “Modern Optical Engineering”, 1784, p227~p230.
[2] Brian F. Alexander, “Elimination of Systematic Error in Subpixel Accuracy
Centroid Estimation”, Optical Engineering, September 1991, Vol.30 No.9.
[3] Jean Pierre Fillard, “Subpixel Accuracy Location Estimation from Digital Signals”Optical Engineering, November 1992, Vol. 31, No.11/2465.
[4] 賴鐵軍,郭祝武著, “應用統計學”, 全華科技。
[5] 程大器,“統計學理論與應用(下)”,智勝文化,民90。
[6] 林銀議,“信號與系統”,五南出版社,民93。
[7] 施敏,”半導體元件物理與製作技術”,臺北市 高立出版社。
[8] 黃世林等,“中醫脈象研究”,知音出版社,民84。
[9] 孫文信, 羅美俐, “一項基於三角測距原理的距離量測系統設計”,
光電資訊第12期80年12月。
[10] 彭政忠,“精巧型數位影像之距離及角度量測系統”,中央大學碩
士論文,民91。
[11] 陳俊吉,“利用三角測量法量測人體脈搏”,中央大學碩士論文,民94。
[12]費兆馥,“現代中醫脈診學”,人民衛生出版社,2003
指導教授 張榮森(Rong-Seng Chang) 審核日期 2006-7-21
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