【摘要】：醫(yī)用硬管內(nèi)窺鏡,是一種醫(yī)用光學(xué)觀察儀器,它可以插入人體體腔和臟器內(nèi)進(jìn)行直接觀察、診斷和治療。醫(yī)用硬管內(nèi)窺鏡具有圖像清晰度高、色彩逼真等優(yōu)點(diǎn),作為輔助醫(yī)療器材,目前被廣泛應(yīng)用于無創(chuàng)或微創(chuàng)診療或手術(shù)中。現(xiàn)行的內(nèi)窺鏡光學(xué)性能檢測(cè)標(biāo)準(zhǔn)有兩個(gè)國(guó)際標(biāo)準(zhǔn)、和國(guó)家標(biāo)準(zhǔn),但是這兩種均有一些不足之處,不適合內(nèi)窺鏡生產(chǎn)廠家和醫(yī)療機(jī)構(gòu)使用。本文的主要目的是通過設(shè)計(jì)新的內(nèi)窺鏡檢測(cè)系統(tǒng)及檢測(cè)方法,推進(jìn)內(nèi)窺鏡檢測(cè)的標(biāo)準(zhǔn)化和推廣使用。本文設(shè)計(jì)完成了一套內(nèi)窺鏡光學(xué)性能檢測(cè)系統(tǒng),采用機(jī)器視覺原理檢測(cè)硬管內(nèi)窺鏡的光學(xué)性能,代替人眼判斷,智能化程度高,精度高,重復(fù)性好。本文重點(diǎn)就硬管內(nèi)窺鏡光學(xué)系統(tǒng)的調(diào)制傳遞函數(shù)MTF、光效均勻性和屈光度光學(xué)參數(shù)的檢測(cè)進(jìn)行了以下的研究:1、合理設(shè)計(jì)使用新的檢測(cè)方法和檢測(cè)裝置,搭建檢測(cè)平臺(tái);2、選擇軟件平臺(tái),對(duì)不同參數(shù),進(jìn)行軟件方面的編寫,調(diào)試;3、對(duì)不同的光學(xué)參數(shù),進(jìn)行了多人,多次的重復(fù)性檢測(cè),驗(yàn)證了檢測(cè)系統(tǒng)參數(shù)檢測(cè)結(jié)果的重復(fù)性。同時(shí)進(jìn)行了對(duì)比試驗(yàn),與現(xiàn)有國(guó)家標(biāo)準(zhǔn)的測(cè)量結(jié)果進(jìn)行對(duì)比,檢驗(yàn)了其準(zhǔn)確性。本文所提出的檢測(cè)系統(tǒng)有以下幾個(gè)方面的優(yōu)勢(shì):1、檢測(cè)裝置方面,本文利用LCD顯示代替?zhèn)鹘y(tǒng)靶標(biāo),解決了傳統(tǒng)靶標(biāo)加工和更換困難的問題;利用電控平臺(tái)作為檢測(cè)系統(tǒng)位移調(diào)節(jié)裝置,提高了檢測(cè)結(jié)果的重復(fù)性和精確性;2、軟件方面,本文利用機(jī)器視覺定量的計(jì)算、測(cè)量和評(píng)估硬管內(nèi)窺鏡的光學(xué)參數(shù),代替人眼判斷,智能化程度高,精度高,重復(fù)性好;3、內(nèi)窺鏡性能評(píng)價(jià)方面,利用MTF代替極限角分辨率評(píng)價(jià)醫(yī)用硬管內(nèi)窺鏡成像質(zhì)量,利用內(nèi)窺鏡整個(gè)視場(chǎng)邊緣與中心的亮度比曲線代替國(guó)標(biāo)中的90%最大入瞳視場(chǎng)角的邊緣光效值,所包含信息更全面,豐富,評(píng)價(jià)更為準(zhǔn)確。
[Abstract]:Medical hard tube endoscope is a kind of medical optical observation instrument. It can be inserted into human body cavity and viscera for direct observation, diagnosis and treatment. Medical hard tube endoscope has many advantages such as high definition of image, realistic color and so on. As an auxiliary medical device, it is widely used in noninvasive or minimally invasive diagnosis and treatment or surgery. There are two international standards and national standards for the optical performance testing of endoscope, but these two standards have some shortcomings and are not suitable for the use of endoscope manufacturers and medical institutions. The main purpose of this paper is to promote the standardization and application of endoscope detection by designing new endoscope detection system and testing method. In this paper, a set of optical performance testing system for endoscope is designed and completed. The principle of machine vision is used to test the optical performance of hard tube endoscope, which replaces human eye judgment, and has high intelligence, high precision and good repeatability. In this paper, the modulation transfer function (MTF,) of hard tube endoscope optical system is studied as follows: 1. Reasonable design and use of new detection method and detection device; 2. The software platform is chosen to compile and debug the software for different parameters. 3. For the different optical parameters, repeated and repeated tests are carried out to verify the repeatability of the testing results. At the same time, a comparative test was carried out, and the accuracy was verified by comparing the measurement results with the existing national standards. The detection system put forward in this paper has the following advantages: 1. In the aspect of detecting device, this paper uses LCD display instead of traditional target to solve the problem of difficult processing and replacement of traditional target; Using the electronic control platform as the displacement adjusting device of the detection system, the repeatability and accuracy of the test results are improved. 2. In software, this paper uses machine vision to calculate, measure and evaluate the optical parameters of hard tube endoscope instead of human eyes, which has the advantages of high intelligence, high precision and good repeatability. 3. In the aspect of endoscope performance evaluation, MTF is used instead of limit angle resolution to evaluate the imaging quality of medical rigid tube endoscope. By using the luminance ratio curve of the whole field of view to the center of the endoscope to replace the 90% of the maximum entrance field of view angle in the national standard, the information is more comprehensive, abundant and the evaluation is more accurate.
【學(xué)位授予單位】：北京理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TH776.1

【相似文獻(xiàn)】

相關(guān)期刊論文 前8條

1 李宇峰;;硬管內(nèi)窺鏡的使用維護(hù)及保養(yǎng)[J];林業(yè)科技情報(bào);2009年01期

2 遲戈;馬艷彬;李非;李竹;梁文;;診斷用硬管內(nèi)窺鏡產(chǎn)品使用說明書注意事項(xiàng)分析[J];中國(guó)醫(yī)療器械信息;2010年07期

3 張世明;;歐林巴斯關(guān)節(jié)鏡(OES硬鏡系列)[J];中國(guó)醫(yī)療器械雜志;1991年04期

4 林良明,高立明,顏國(guó)正,戎榮;導(dǎo)管前端自動(dòng)操作內(nèi)窺鏡研制[J];醫(yī)療保健器具;1998年03期

5 ;信息動(dòng)態(tài)[J];生物醫(yī)學(xué)工程與臨床;2007年05期

6 劉亞萍;纖維乳管內(nèi)視鏡[J];腹腔鏡外科雜志;2004年04期

7 何濤,齊偉明,任曉t ,姚兆京,甄輝,鄭文華;國(guó)產(chǎn)醫(yī)用光學(xué)內(nèi)窺鏡的發(fā)展與質(zhì)量分析[J];光學(xué)儀器;1996年05期

8 ;[J];;年期

相關(guān)會(huì)議論文 前1條

1 周鵬;;硬管內(nèi)窺鏡的使用維護(hù)及術(shù)后的保養(yǎng)[A];中華醫(yī)學(xué)會(huì)醫(yī)學(xué)工程學(xué)分會(huì)第七次學(xué)術(shù)年會(huì)論文集[C];2004年

相關(guān)重要報(bào)紙文章 前2條

1 ;硬管內(nèi)窺鏡的使用維護(hù)及術(shù)后保養(yǎng)（一）[N];農(nóng)村醫(yī)藥報(bào)（漢）;2008年

2 ;硬管內(nèi)窺鏡的使用維護(hù)及術(shù)后保養(yǎng)（二）[N];農(nóng)村醫(yī)藥報(bào)（漢）;2008年

相關(guān)碩士學(xué)位論文 前2條

1 王亞坤;醫(yī)用硬管內(nèi)窺鏡光學(xué)性能檢測(cè)系統(tǒng)設(shè)計(jì)[D];北京理工大學(xué);2016年

2 翟小皓;硬管內(nèi)窺鏡光學(xué)參數(shù)測(cè)量系統(tǒng)設(shè)計(jì)[D];北京理工大學(xué);2016年

，

本文編號(hào)：2329728