TWI638638B - Method for evaluating operational performance of a biological system and apparatus for fetching data required therefor - Google Patents
Method for evaluating operational performance of a biological system and apparatus for fetching data required therefor Download PDFInfo
- Publication number
- TWI638638B TWI638638B TW106119650A TW106119650A TWI638638B TW I638638 B TWI638638 B TW I638638B TW 106119650 A TW106119650 A TW 106119650A TW 106119650 A TW106119650 A TW 106119650A TW I638638 B TWI638638 B TW I638638B
- Authority
- TW
- Taiwan
- Prior art keywords
- value
- values
- coefficients
- potential
- region
- Prior art date
Links
Landscapes
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
本發明揭露一種生物系統運作表現評估方法以及用以取得該評估方法中數據的設備。該設備包括一發光單元、一電位量測單元、一類比數位轉換單元,及一運算單元。本發明利用外部訊號光刺激,取得皮膚表面電位變化資料,進一步以數值方式觀察生物體內各器官的現狀。與現有X-光及核磁共振成像等技術相較,有觀察時間短、施作價格低,以及不對生物造成傷害等優點。 The present invention discloses a method for evaluating the performance of a biological system and an apparatus for obtaining data in the method of evaluation. The device comprises a light emitting unit, a potential measuring unit, an analog digital converting unit, and an arithmetic unit. The invention utilizes external signal light stimulation to obtain data on surface potential changes of the skin, and further observes the current state of various organs in the living body by numerical means. Compared with existing X-ray and MRI technologies, there are advantages such as short observation time, low application price, and no damage to living things.
Description
本發明關於一種用於生物系統運作表現的評估方法,以及用以取得該評估方法中數據的設備,特別是一種以光線刺激生物表皮以取得體內對應電位改變,用於生物體內各系統,比如呼吸系統、消化系統等,運作表現的評估方法,以及為了取得該評估方法中必要數據的設備。 The present invention relates to an evaluation method for the performance of a biological system, and a device for obtaining data in the evaluation method, in particular, a method for stimulating a biological epidermis with light to obtain a corresponding potential change in the body for use in various systems in the living body, such as breathing Systems, digestive systems, etc., methods of assessing operational performance, and equipment for obtaining the necessary data in the assessment method.
一般來說,要知道生物體內的器官或系統的現況,進而了解該生物的健康情況,除了以醫學的方式進行解剖外,還有許多非破壞性的方法。舉例人類而言,醫療人員利用X-光,以陰極發出的射線來觀察病灶。這些射線遇不同成份與密度的組織,其穿透率不一樣,最後落在成像底片或偵測器的殘餘量也不一樣,故可形成不同亮度的影像。另一種解析度比較高的成像儀是核磁共振成像(Nuclear Magnetic Resonance Imaging,簡稱NMRI),利用核磁共振(Nuclear Magnetic Resonance,簡稱NMR)原理,分析能量在物質內部 不同結構環境中的衰減程度,再加上通過外加梯度磁場檢測所發射出的電磁波,即可得知構成這一物體器官的原子核的位置和種類,據此可以繪製成物體內部的結構圖像。廣義的來看,以上所述的技術,無外乎使用高密度能量刺激人體,並同時利用某些來自人體可偵測的物理觀測值,推測或還原人體內部的狀況,有時還必須對人體施加一定的輔助劑,比如顯影劑。這些技術除了施作設備昂貴,對人體造成些微的傷害等問題之外,如果要能廣泛應用到所有生物上,無論是進行學理研究或疾病治療,還要做許多參數的調校。有待改進之處尚多。 In general, there are many non-destructive methods to know the state of an organ or system in a living organism and to understand the health of the organism, in addition to being dissected in a medical manner. For example, in humans, medical personnel use X-rays to observe lesions with radiation from the cathode. These rays have different transmittances of different compositions and densities, and the residual amount of the negative film or the detector is different, so that images of different brightness can be formed. Another high resolution imager is Nuclear Magnetic Resonance Imaging (NMRI), which uses the principle of Nuclear Magnetic Resonance (NMR) to analyze energy inside the material. The degree of attenuation in different structural environments, together with the electromagnetic waves emitted by the applied gradient magnetic field, reveals the position and type of the nucleus that constitutes the organ of the object, from which it can be drawn into a structural image of the interior of the object. Broadly speaking, the above-mentioned technology is nothing more than stimulating the human body with high-density energy, and at the same time, using some physical observations that can be detected by the human body, speculating or restoring the internal conditions of the human body, sometimes it is necessary to Apply a certain adjuvant, such as a developer. In addition to the problems of expensive equipment and slight damage to the human body, these technologies require a wide range of parameters to be adjusted if they are to be widely applied to all organisms, whether for academic research or disease treatment. There are still many areas for improvement.
眾所周知,生物體皆由數量眾多的單細胞所構成,彼此協作以達成許多生存所需的任務。再舉人類為例子來說明,人體約由3.72x1013個單細胞組成,這些細胞聚集形成組織、器官與系統。當一個細胞受到生物學上的刺激時(例如氧化、微生物侵犯、溫度異常等等),細胞本身的基因會調整各種分子物質的結構與合成量,在一定的範圍內將異常的狀況調整回正常,同時也會將自己的狀況傳達給鄰近的細胞,一起把訊息傳送給其他的器官系統。當這些細胞生物訊息量與發生次數達到某一個門檻值時,其他器官系統就會作出反應,例如免疫細胞開始活化、腎上腺分泌激素、腦下垂體分泌激素等等,其目的就是援助協助修復。現代生物醫學指出細胞與細胞、器官系統與器官系統之間利用分子物質傳達訊 息,涉及的層次除了分子物質的結構與量,還包括能量、電子的正子等等更細微的改變;除了利用鄰近細胞傳給訊息,其他細胞與器官系統也經由神經系統與循環系統得到相關訊息。因此,除了經由血液、驗尿與其他體液檢驗分析「相對巨觀」的代謝狀況,了解細微的訊息變化可以更細部的了解人體各器官系統整體的現況。在分子生物學層次上,目前已經可以部份了解體內訊息傳遞狀況,比如能量與粒線體的病變狀況。但若適當地刺激皮膚並讀取由皮膚發出的訊號,比如電壓變化,可以回推發出該些體內傳遞訊息的器官或系統的目前狀況。 It is well known that organisms are made up of a large number of single cells that work together to achieve many of the tasks required for survival. Taking humans as an example, the human body consists of about 3.72x10 13 single cells, which aggregate to form tissues, organs and systems. When a cell is stimulated by biology (such as oxidation, microbial invasion, temperature abnormality, etc.), the gene of the cell itself adjusts the structure and synthesis of various molecular substances, and adjusts the abnormal condition back to normal within a certain range. At the same time, it will also convey its own status to neighboring cells and send the message together to other organ systems. When the amount of cellular information and the number of occurrences reaches a certain threshold, other organ systems will respond, such as the activation of immune cells, the secretion of hormones from the adrenal glands, and the secretion of hormones from the pituitary gland. The purpose is to assist in the repair. Modern biomedicine points out that cells and cells, organ systems and organ systems use molecular substances to convey information. In addition to the structure and quantity of molecular substances, they also include more subtle changes in energy, electrons, and so on; Passed to the message, other cells and organ systems also get information through the nervous system and the circulatory system. Therefore, in addition to analyzing the metabolic status of "relative giants" through blood, urine test and other body fluid tests, understanding the subtle changes in the message can provide a more detailed understanding of the current state of the body's various organ systems. At the molecular biology level, it is now possible to partially understand the in vivo signal transmission status, such as energy and mitochondrial lesions. However, if the skin is properly stimulated and a signal from the skin, such as a voltage change, is read, the current condition of the organ or system that transmits the message in the body can be pushed back.
相關的技術可以參考美國專利申請案第20160220130號,該技術是關於一種陣列式生理偵測系統,可偵測並記錄使用者之三個維度以上的生理特徵。該案以一光源提供光線照射一皮膚區域並穿透至該皮膚區域之真皮層,以每一該等感光像素連續偵測經過該皮膚區域之該真皮層之出射光以分別輸出一亮度變化信號,轉換相對每一該等感光像素之該亮度變化信號為頻域資料,計算相對該等感光像素之該等頻域資料之一變異量,及根據該變異量的變化判斷一微循環狀態。該生理偵測系統雖可以外部特定波長光線刺激來讀取皮膚的反應,但由於是光進光出,像是滑鼠偵測桌面紋理的作用,只能了解淺層微循環血管漲縮變化信號,無法 讀取其它體內器官或系統對該光線的反應,應用層面上限縮了許多。 A related art can be referred to US Patent Application No. 20160220130, which relates to an array physiological detection system that can detect and record physiological characteristics of three or more dimensions of a user. In the case, a light source is used to provide light to illuminate a skin area and penetrate the dermis layer of the skin area, and each of the photosensitive pixels continuously detects the light emitted from the dermis layer passing through the skin area to respectively output a brightness change signal. Converting the brightness change signal of each of the photosensitive pixels to frequency domain data, calculating a variation amount of the frequency domain data relative to the photosensitive pixels, and determining a microcirculation state according to the variation of the variation amount. The physiological detection system can read the skin reaction by external specific wavelength light stimulation, but because of the light entering the light, such as the mouse detecting the texture of the desktop, only the shallow microcirculation blood vessel expansion and contraction change signal can be understood. Unable Reading the response of other internal organs or systems to the light, the upper limit of the application level is much reduced.
緣此,要能有效利用外部光刺激來了解人體各系統運作現況,甚至進一步能配合臨床數據來評估各系統衰老損傷情形,在進行醫療改善前能盡早提出警訊,作為預防醫學的一部分,本發明人提出了一種生物系統運作表現的評估方法及取得該評估方法中數據的設備。重要的是,這種生物系統運作表現的評估方法,不僅能應用於人類,也能推廣應用到萬象生物身上,為科學研究提出貢獻。 Therefore, it is necessary to effectively use external light stimulation to understand the current state of operation of various human systems, and even further cooperate with clinical data to evaluate the aging damage of various systems, and to provide early warnings before medical improvement, as part of preventive medicine, this The inventors have proposed an evaluation method for the performance of a biological system and a device for obtaining data in the evaluation method. What is important is that this method of assessing the performance of biological systems can be applied not only to humans, but also to the use of Vientiane organisms to contribute to scientific research.
本段文字提取和編譯本發明的某些特點。其它特點將被揭露於後續段落中。其目的在涵蓋附加的申請專利範圍之精神和範圍中,各式的修改和類似的排列。 This paragraph of text extracts and compiles certain features of the present invention. Other features will be revealed in subsequent paragraphs. The intention is to cover various modifications and similar arrangements in the spirit and scope of the appended claims.
為了滿足以上需求,本發明揭露了前述的生物系統運作表現評估方法。該方法包含步驟:a)向一生物之皮膚的一第一區域持續發射具有特定波長的一訊號光;b)在一特定時間內,以一取樣頻率於該生物之皮膚的一第二區域量測電位,並將量測到的電位值轉換為對應的二進位數值;c)依時序取得一表現數據,該表現數據為一門檻區間以外的該些二進位數值轉化的複數個0與1的位元值;d)取出該表現數據中複數組N位元組的位元值,進行快速傅立葉轉換運算;e)取快速傅立葉轉換運算所得每組前M個最大週期餘弦波之對應的M個係數; 及f)集合步驟e所得的複數組M個係數,計算每一組M個係數對該生物正常狀態下的複數個樣品執行步驟a到步驟e所得之對應M個係數平均值的分散關係數值。 In order to meet the above needs, the present invention discloses the aforementioned biological system performance evaluation method. The method comprises the steps of: a) continuously emitting a signal light having a specific wavelength to a first region of a skin of a living being; b) measuring a second region of the skin of the living creature at a sampling frequency for a specific time. Measuring the potential, and converting the measured potential value into a corresponding binary value; c) obtaining a performance data according to the time series, the performance data is a plurality of 0 and 1 converted by the binary values outside a threshold interval Bit value; d) fetch the bit value of the complex array N byte in the performance data, perform fast Fourier transform operation; e) take the corresponding M of the first M maximum periodic cosine waves of each group obtained by fast Fourier transform operation coefficient; And f) collecting the complex array M coefficients obtained in step e, and calculating the dispersion relationship value of each of the M coefficients for the plurality of samples in the normal state of the organism to perform the average of the corresponding M coefficients obtained in steps a to e.
最好,該第二區域與該第一區域不在生物之相鄰的皮膚表面上。計算連續K個該門檻區間以外的二進位數值之平均值,若其二進位數值轉化的方式可為:中央之二進位數值大於或等於該平均值時,轉化為1;小於該平均值時,轉化為0。 Preferably, the second region and the first region are not on the skin surface adjacent to the living being. Calculate the average of the consecutive K values of the binary values outside the threshold interval. If the binary value is converted, the method may be: when the central binary value is greater than or equal to the average value, it is converted to 1; when the average value is less than the average value, Convert to 0.
依照本發明,該特定波長可為860nm~890nm的近紅外線光波長。N可為9,M可為10,K可為21。步驟b中可以一光學二極體量測電位。 According to the present invention, the specific wavelength may be a near-infrared light wavelength of 860 nm to 890 nm. N can be 9, M can be 10, and K can be 21. In step b, the potential can be measured by an optical diode.
所述之生物系統運作表現評估方法,其中該分散關係數值的計算步驟包含:1)將每組的M個係數與對應M個係數平均值的差異量的絕對值的和,依數值小至大分階給以1到L分的賦值,L為正整數,1分代表差異量為零至次一階,L分代表差異量為最大至前一階;2)計算1到L分各有多少組;3)由大到小設定L個整數值;及4)將1到L分的組數分別乘以由大到小對應的整數值後相加,其結果除以總組數與最大整數值之積。L可為6。 The biological system operation performance evaluation method, wherein the calculation step of the dispersion relationship value comprises: 1) summing the absolute values of the difference between the M coefficients of each group and the average value of the corresponding M coefficients, the value is as small as the large score The order gives an assignment of 1 to L points, L is a positive integer, 1 point represents the difference between zero and the next order, L is the difference between the maximum and the previous order; 2) Calculating the number of groups from 1 to L 3) set L integer values from large to small; and 4) multiply the number of groups from 1 to L by the integer value corresponding to the largest to the smallest, and add the result by the total number of groups and the largest integer value. The product. L can be 6.
本發明另揭露一種取得所述生物系統運作表現評估方法中數據的設備。該設備包含:一發光單元,用以向一生物之皮膚的一第一區域持續發射具有特定波長的一訊號光; 一電位量測單元,可貼附於該生物之皮膚的一第二區域,用以量測該第二區域的電位;一類比數位轉換單元,與該電位量測單元電連接,用以在一特定時間內,以一取樣頻率將量測到的電位值轉換為對應的二進位數值;及一運算單元,與該類比數位轉換單元電連接,用以依時序取得一表現數據,該表現數據為一門檻區間以外的該些二進位數值轉化的複數個0與1的位元值、取出該表現數據中複數組N位元組的位元值,進行快速傅立葉轉換運算、取快速傅立葉轉換運算所得每組前M個最大週期餘弦波之對應的M個係數,及集合所得的複數組M個係數,計算每一組M個係數對該生物系統正常狀態下的複數個樣品經該設備所獲得之對應M個係數平均值的分散關係數值。 The present invention further discloses an apparatus for obtaining data in the biological system performance evaluation method. The device includes: a light emitting unit for continuously emitting a signal light having a specific wavelength to a first region of a skin of a living being; a potential measuring unit attachable to a second area of the skin of the living body for measuring the potential of the second area; an analog-digital conversion unit electrically connected to the potential measuring unit for During a specific time, the measured potential value is converted into a corresponding binary value by a sampling frequency; and an arithmetic unit is electrically connected to the analog digital conversion unit to obtain a performance data according to time series, and the performance data is a plurality of 0 and 1 bit values converted by the binary values outside a threshold interval, and the bit values of the complex array N bytes in the performance data are taken out, and a fast Fourier transform operation is performed, and a fast Fourier transform operation is performed. The M coefficients of the first M maximum periodic cosine waves of each group, and the M coefficients of the complex array obtained by the set, calculate each group of M coefficients obtained by the device for the plurality of samples in the normal state of the biological system. The value of the dispersion relationship corresponding to the average of the M coefficients.
最好,該第二區域與該第一區域不在生物之相鄰的皮膚表面上。二進位數值轉化的方式可為:計算連續K個該門檻區間以外的二進位數值之平均值,若其中央之二進位數值大於或等於該平均值時,轉化為1;小於該平均值時,轉化為0。 Preferably, the second region and the first region are not on the skin surface adjacent to the living being. The binary value conversion method may be: calculating an average value of consecutive K values of the binary values other than the threshold interval, and converting to 1 when the central binary value is greater than or equal to the average value; Convert to 0.
依照本發明,該發光單元可為光學二極體,發出特定波長為860nm~890nm的近紅外線光波長。N可為9,M可為10,K可為21。該電位量測單元可為一光學二極體。 According to the invention, the light-emitting unit can be an optical diode emitting a near-infrared light wavelength having a specific wavelength of 860 nm to 890 nm. N can be 9, M can be 10, and K can be 21. The potential measuring unit can be an optical diode.
運算單元進一步以以下步驟計算該分散關係數值:1)將每組的M個係數與對應M個係數平均值的差異量的絕對 值的和,依數值小至大分階給以1到L分的賦值,L為正整數,1分代表差異量為零至次一階,L分代表差異量為最大至前一階;2)計算1到L分各有多少組;3)由大到小設定L個整數值;及4)將1到L分的組數分別乘以由大到小對應的整數值後相加,其結果除以總組數與最大整數值之積。L可為6。 The arithmetic unit further calculates the value of the dispersion relationship by the following steps: 1) absolute value of the difference between the M coefficients of each group and the average value of the corresponding M coefficients The sum of the values, from small to large, gives an assignment of 1 to L, L is a positive integer, 1 represents the difference from zero to the next order, and L represents the difference from the largest to the previous; 2) Calculate how many groups are from 1 to L; 3) set L integer values from large to small; and 4) multiply the number of groups from 1 to L by the integer values corresponding to large to small, and add the result. Divided by the product of the total number of groups and the largest integer value. L can be 6.
本發明利用外部訊號光刺激,取得皮膚電位變化資料,進一步以數值方式觀察生物體內各器官的現狀。與現有X-光及核磁共振成像等技術相較,有觀察時間短、施作價格低,以及不對生物造成傷害等優點。 The invention utilizes external signal light stimulation to obtain skin potential change data, and further observes the current status of various organs in the living body in a numerical manner. Compared with existing X-ray and MRI technologies, there are advantages such as short observation time, low application price, and no damage to living things.
10‧‧‧電子設備 10‧‧‧Electronic equipment
100‧‧‧發光單元 100‧‧‧Lighting unit
200‧‧‧電位量測單元 200‧‧‧potentiometric measuring unit
300‧‧‧類比數位轉換單元 300‧‧‧ analog digital conversion unit
400‧‧‧運算單元 400‧‧‧ arithmetic unit
500‧‧‧顯示單元 500‧‧‧ display unit
600‧‧‧電力供應單元 600‧‧‧Power supply unit
20‧‧‧伺服器 20‧‧‧Server
第1圖為依照本發明一種生物系統運作表現評估方法的步驟流程圖;第2圖繪示較佳的第一區域與第二區域;第3圖說明量測到的電位與轉換的二進位數值間之關係;第4圖繪示人體胰臟及十二指腸區;第5圖為分散關係數值計算步驟的流程圖;及第6圖為一取得該生物系統運作表現評估方法中數據的設備的示意圖。 1 is a flow chart showing the steps of a method for evaluating the performance of a biological system according to the present invention; FIG. 2 is a view showing a preferred first region and a second region; and FIG. 3 is a view showing the measured potential and converted binary values. The relationship between the two; the fourth figure shows the human pancreas and duodenum; the fifth figure is a flow chart of the numerical calculation steps of the dispersion relationship; and the sixth figure is a schematic diagram of a device for obtaining data in the biological system performance evaluation method.
以下說明內容包含本發明說明的實施方式,以便理解本發明說明如何應用於實際狀況。須注意的是,在以下圖式中,與本發明說明技術無關的部份已遭到省略,同時為彰顯元件之間的關係,圖式裡各元件之間的比例與真實的元件之間的比例並不一定相同。 The following description contains the embodiments of the present invention in order to understand how the description of the invention is applied to the actual situation. It should be noted that in the following figures, the parts unrelated to the techniques of the present invention have been omitted, and in order to demonstrate the relationship between the elements, the ratio between the elements in the drawing and the real elements. The ratios are not necessarily the same.
請參閱第1圖,該圖為依照本發明一種生物系統運作表現評估方法的步驟流程圖。首先,向一生物之皮膚的一第一區域持續發射具有特定波長的一訊號光(S01)。在此步驟中,生物可以指任何有生命現象的物種,特指動物。在本實施方式中,將以人類(人體)為例子進行說明。人類在醫學上有許多累積的學術與實務成就,以及相對應本發明所進行的臨床實驗,都可以驗證本發明的具體成效。這裡所說的生物系統,以人類來說,指的是消化系統、生殖系統、內分泌系統等具有特定運行目的並牽涉到至少一種以上的器官所組成的生理系統。一般生物也有其生理系統。理論上,該訊號光透過皮膚打入人體最好是在無背景光的情況下,比如暗室中,以避免背景光線中具有接近波長的光線或強能量光線干擾。實作上,這些干擾可以藉由消除背景雜訊而消除。然而,為避免不必要的突發干擾或干擾光源太過強烈,造成評估失準,盡量降低訊號光光源附近的光線強度。 Please refer to FIG. 1 , which is a flow chart showing the steps of a method for evaluating the performance of a biological system according to the present invention. First, a signal light having a specific wavelength is continuously emitted to a first region of the skin of a living creature (S01). In this step, the organism can refer to any species with a life phenomenon, especially an animal. In the present embodiment, a human (human body) will be described as an example. Humans have many accumulated academic and practical achievements in medicine, as well as clinical experiments conducted in accordance with the present invention, which can verify the specific effects of the present invention. The biological system referred to herein refers to a physiological system composed of a digestive system, a reproductive system, an endocrine system and the like having a specific operational purpose and involving at least one or more organs. General organisms also have their physiological systems. In theory, the signal light is transmitted into the human body through the skin, preferably in the absence of background light, such as in a dark room, to avoid interference with light or strong energy rays in the background light. In practice, these disturbances can be eliminated by eliminating background noise. However, in order to avoid unnecessary sudden interference or interference with the light source is too strong, the evaluation is not accurate, and the light intensity near the signal light source is minimized.
依照本發明的精神,訊號光作為外部刺激人體的能量來源,必須得連續向皮膚的該第一區域(第一區域將與後文中的第二區域一起說明)發射。依照測試結果,最好持續的時間能至少在一分鐘左右。由於刺激的時間越長,所能取得對應刺激的反應訊號越多,一分鐘以上的時間是較好的。對每一種生物而言,用以獲得體內各系統反應最好的光線刺激之光源種類可能不一樣。就人類來說,訊號光的最好是近紅外線光,其特定波長在860nm到890nm間。就發射能量而言,每個生物也不一樣;若考量安全性,施作在人體的訊號光能量可以在0.5瓦以下,最好是0.25瓦左右,這樣的強度足以激發足夠的可被量測反應。 In accordance with the spirit of the present invention, signal light, as an external source of energy for stimulating the human body, must be continuously transmitted to the first region of the skin (the first region will be described together with the second region in the text below). According to the test results, it is best to last for at least a minute or so. The longer the stimulus is, the more response signals can be obtained for the corresponding stimulus, and more than one minute is better. For each organism, the type of light source used to obtain the best light stimuli for each system in the body may vary. For humans, the signal light is preferably near-infrared light with a specific wavelength between 860 nm and 890 nm. In terms of emission energy, each creature is different; if safety is considered, the signal light energy applied to the human body can be below 0.5 watts, preferably about 0.25 watts, which is strong enough to spur enough to be measured. reaction.
接著,第二步驟為在一特定時間內,以一取樣頻率於該生物之皮膚的一第二區域量測電位,並將量測到的電位值轉換為對應的二進位數值(S02)。在此步驟中,特定時間對應的是步驟S01中的訊號光發射時間,在該訊號光發射時間內蒐集後續步驟要進行分析的數據,量測電位可以一光學二極體執行。取樣頻率可視現有電子元件的特性而定,比如使用取樣頻率為100kHz或192kHz,解析度為12bits的類比轉數位轉換器(Analog-to-Digital Converter,ADC),對應的取樣頻率就為100kHz或192kHz。關於皮膚的第一區域與第二區域,原則上第二區域與第一區域不在生物之相鄰的皮膚表面上,避免光線發射源與電位量測端太接近,接收的電壓值受到局 部影響較重而失去了對目標系統的觀測。由於希望訊號光的刺激能夠傳達到身體各個部份,光線發射與電位量測最好在相反的方向上。一個比較好的例子如第2圖所示,訊號光沿空心箭號方向射向食指指甲對面的皮膚(第一區域),電位於實心箭號所指拇指指甲對面的皮膚(第二區域)處量測。 Next, the second step is to measure the potential in a second region of the skin of the living being at a sampling frequency for a specific time, and convert the measured potential value into a corresponding binary value (S02). In this step, the specific time corresponds to the signal light emission time in step S01, and the data to be analyzed in the subsequent step is collected during the signal light emission time, and the measurement potential can be performed by an optical diode. The sampling frequency can be determined by the characteristics of existing electronic components. For example, an Analog-to-Digital Converter (ADC) with a sampling frequency of 100 kHz or 192 kHz and a resolution of 12 bits, the corresponding sampling frequency is 100 kHz or 192 kHz. . Regarding the first area and the second area of the skin, in principle, the second area and the first area are not on the skin surface adjacent to the living body, and the light emission source is prevented from being too close to the potential measuring end, and the received voltage value is received by the bureau. The influence of the Ministry was heavier and the observation of the target system was lost. Since it is hoped that the stimulation of the signal light can be transmitted to various parts of the body, the light emission and the potential measurement are preferably in the opposite direction. A good example is shown in Figure 2. The signal light is directed toward the skin (first area) opposite the fingernail's nail in the direction of the hollow arrow, and is located at the skin (second area) opposite the thumb nail pointed by the solid arrow. Measure.
量測到的電位與轉換的二進位數值間之關係請見第3圖。要說明的是該圖僅為本實施方式為了說明所使用的例子並非代表實際操作情況。第3圖顯示一個平面座標系,其橫軸代表時間,單位可以為秒。縱軸有兩個:左方的縱軸上單位為第二區域的電位(相對接地),以mV為單位,右方的縱軸上單位為二進位12bits,對應前述的電位數值(12個連續0或1,換成十進位數值可表0~4095,也就是將電壓值在一定的範圍內,分成4096個數值,以二進位數值表示)。電位轉換對應的二進位數值採線性轉換,也就是實體一個連續區段電位數值會對應一個二進位數值,其相鄰區段電位數值對應的二進位數值或大或小於”1”。 See Figure 3 for the relationship between the measured potential and the converted binary value. It is to be noted that the figure is only an example of the present embodiment for the purpose of illustration and does not represent an actual operation. Figure 3 shows a plane coordinate system whose horizontal axis represents time and can be in seconds. There are two vertical axes: the vertical axis on the left is the potential of the second region (relative to ground), in mV, and the unit on the right vertical axis is binary 12bits, corresponding to the aforementioned potential value (12 consecutive 0 or 1, can be changed to decimal value can be 0~4095, that is, the voltage value is within a certain range, divided into 4096 values, expressed as binary values). The binary value corresponding to the potential conversion adopts linear conversion, that is, the value of a continuous segment potential of the entity corresponds to a binary value, and the binary value corresponding to the potential value of the adjacent segment is greater or smaller than "1".
接著,依時序取得一表現數據,該表現數據為一門檻區間以外的該些二進位數值轉化的複數個0與1的位元值(S03)。請復見第3圖並配合以下說明。由於電位的量測並非連續,而是以一定頻率,在很短時間內獲得量測值,真實的數據會波動。如前所述,這些數值可能會受背景光線干擾,或者是受實施本方法的設備本身固有的噪訊影響,這些干擾 或噪訊需要簡便的方式去除以增進評估結果的精度。基於不同的環境以及校正經驗,可選擇一個門檻區間,其本身也是二進位數值(在本例中亦為一12bits數值),用來篩選合格的轉換二進位數值。比如,選擇代表36mV的011101110010與44mV的01111110001(虛線)作為門檻區間的上下限值。由第3圖可知,二虛線間的數據在門檻區間內而未被接收為進一步分析的二進位數值,二虛線間外的數據則可以。要強調的是,門檻區間的選擇在每一個實施方式中可能不一樣,並不以第3圖所示者為限。 Then, a performance data is obtained in time series, and the performance data is a plurality of bit values of 0 and 1 converted by the binary values outside a threshold interval (S03). Please see Figure 3 again with the following instructions. Since the measurement of the potential is not continuous, but the measurement is obtained in a short time at a certain frequency, the actual data fluctuates. As mentioned earlier, these values may be affected by background light or by the inherent noise of the device in which the method is implemented. Or noise needs to be removed in a simple manner to improve the accuracy of the evaluation results. Based on different environments and calibration experience, a threshold interval can be selected, which is itself a binary value (also a 12-bit value in this example), which is used to filter the qualified conversion binary values. For example, an 011101110010 representing 36 mV and an 01111110001 (dashed line) representing 44 mV are selected as the upper and lower limits of the threshold interval. As can be seen from Fig. 3, the data between the two broken lines is within the threshold interval and is not received as a binary value for further analysis, and data outside the two dotted lines is acceptable. It should be emphasized that the choice of threshold interval may be different in each implementation and is not limited to those shown in Figure 3.
在本實施方式中使用的是100kHz類比轉數位轉換器,因此一分鐘內會讀取到6000k筆資料,用於分析。實際上經門檻區間的篩選,會有很多的數據被刪除,以致轉換後的二進位數值中可能下1/60(以本實施例而言),也就是刪除了約98.3%的二進位數值,剩下100k筆資料。這100k筆資料要轉化成可以分析的資料,二進位數值轉化的方式必須計算連續K個該門檻區間以外的二進位數值之平均值,若其中央之二進位數值大於或等於該平均值時,轉化為1;小於該平均值時,轉化為0。舉例來說,取K為21,也就是一個合格的二進位數值所代表的是”0”或”1”,取決於它和前10與後10個同樣也是合格的二進位數值所計算的平均值之間的關係。比如,該平均數為101110010011,若中央的二進位數值為101100011011,小於該平均數,則該二進位數值轉化成為0,反之為1。是故,100k 筆資料成為了100kbits的0與1,這就是表現數據。表現數據理想上取100kbits就可以了,更多bit的表現數據會有更精準的評估結果,然而也會極大消耗計算機資源,應謹慎選擇。要注意的是,這些bits必須得依時序排列,時間在後者排列在後。 In the present embodiment, a 100 kHz analog-to-digital converter is used, so 6000k data is read in one minute for analysis. In fact, through the screening of the threshold interval, a lot of data will be deleted, so that the converted binary value may be 1/60 (in the present embodiment), that is, the binary value of about 98.3% is deleted. There are 100k pens left. The 100k data should be converted into analyzable data. The binary value conversion method must calculate the average value of the consecutive K values outside the threshold interval. If the central binary value is greater than or equal to the average value, Converted to 1; less than the average, converted to 0. For example, taking K as 21, that is, a qualified binary value represents "0" or "1", depending on the average calculated from the same 10 and the last 10 equally acceptable binary values. The relationship between values. For example, the average is 101110010011. If the central binary value is 101100011011, which is less than the average, the binary value is converted to 0, and vice versa. Therefore, 100k The pen data becomes 0 and 1 of 100kbits, which is the performance data. The performance data is ideally 100kbits. More bit performance data will have more accurate evaluation results, but it will also consume computer resources and should be carefully selected. It should be noted that these bits must be arranged in time series, and the time is arranged in the latter.
本方法的下一個步驟為取出該表現數據中複數組N位元組的位元值,進行快速傅立葉轉換運算(S04)。本發明的一個理論基礎是每一片範圍內的細胞運作時,都會對訊號光產生反應,這種反應的回饋會影響皮膚表面的電位變化。因此,本步驟中的N位元組的位元值(特定8N個值,或0或1),即代表前述的一片範圍內的細胞的反應。經過許多的臨床試驗,N值選擇為9,可最佳化評估結果精度,並減少分析時計算機資源的使用。哪些N位元組的位元值對應哪些範圍內的細胞,也是經由臨床試驗找出來。要注意的是,在實驗中,也發現有些許範圍內的細胞的作用,會反映在相同的N位元組的位元值上。關於實際應用,請見第4圖。第4圖繪示人體胰臟及十二指腸區,屬於消化系統。其上有為數眾多的圓點及三角形點,每一點代表一片範圍細胞的中心點,它對應的就是表現數據中一組N位元組的位元值。假設第4圖上有60個點,那麼就有60組對應的N位元組的位元值被選擇用來分析(進行快速傅立葉轉換運算)。這60組N位元組的位元值不盡然相鄰,其選取方式也是要經過許多測試才能找出相對應的位置。 The next step of the method is to take out the bit value of the complex array N-byte in the performance data, and perform a fast Fourier transform operation (S04). One of the theoretical basis of the present invention is that when cells in each range operate, they react to signal light, and the feedback of this reaction affects the potential change on the surface of the skin. Therefore, the bit value of the N-byte in this step (specific 8N values, or 0 or 1) represents the reaction of cells within the aforementioned range. After many clinical trials, the N value is chosen to be 9, which optimizes the accuracy of the assessment results and reduces the use of computer resources during analysis. Which N-bit tuple values correspond to which ranges of cells are also found through clinical trials. It should be noted that in the experiment, it was also found that the effects of cells within a certain range were reflected in the bit values of the same N-byte. See Figure 4 for practical applications. Figure 4 shows the human pancreas and duodenum area, belonging to the digestive system. There are a large number of dots and triangle points, each point representing the center point of a range of cells, which corresponds to the bit value of a set of N bytes in the performance data. Assuming that there are 60 points on the fourth graph, then the 60-bit corresponding N-bit tuple values are selected for analysis (for fast Fourier transform operations). The bit values of the 60 N-bit groups are not completely adjacent, and the selection method is also subject to a lot of tests to find the corresponding position.
接著,取快速傅立葉轉換運算所得每組前M個最大週期餘弦波之對應的M個係數(S05)。當經過傅立葉轉換後,該60組N位元組的位元值各會被展成一個傅立葉級數,f(x)P=a0p+a1pcos(x)+a2pcos(2x)+a3pcos(3x)+...,P=1~60。每一個傅立葉級數有無窮項,每一項代表一個在值域由負無窮大到正無限大的週期函數,其中a0p對應的週期函數週期無窮大。取M=10,每一組的前10個最大週期餘弦波之對應的10個係數分別為a0p、a1p、a2p、a3p、a4p、a5p、a6p、a7p、a8p,與a9p。M的選擇越大越好,然而越大的數值代表後續的計算量大,本例中的10是一個較佳的數字,能平衡結果的精度與計算機使用資源。 Next, the corresponding M coefficients of the first M maximum periodic cosine waves of each group obtained by the fast Fourier transform operation are taken (S05). After Fourier transform, the bit values of the 60 N-bit groups are each expanded into a Fourier series, f(x) P = a 0p + a 1p cos(x) + a 2p cos(2x)+ a 3p cos(3x)+..., P=1~60. Each Fourier series has an infinite term, and each term represents a periodic function in which the range is from negative infinity to positive infinity, where the period of the periodic function corresponding to a 0p is infinite. Taking M=10, the corresponding 10 coefficients of the first 10 largest periodic cosine waves of each group are a 0p , a 1p , a 2p , a 3p , a 4p , a 5p , a 6p , a 7p , a 8p , with a 9p . The larger the selection of M, the better. However, the larger value represents the subsequent calculation. The 10 in this example is a better number, which can balance the accuracy of the result with the resources used by the computer.
本方法的最後一個步驟為:集合步驟S05所得的複數組M個係數,計算每一組M個係數對該生物(本例中為人類)正常狀態下的複數個樣品執行步驟S01到步驟S05所得之對應M個係數平均值的分散關係數值(S06)。從以上的例子可知,完成一次步驟S01到S05,對胰臟及十二指腸這消化系統來說可以得到60組,每組10個數據的資料。取人類正常狀態下的數個,比如1000個,樣品反覆該些步驟,對消化系統而言會有1000筆前述資料。取該些資料的平均值,也會得到60組,每組10個的平均數據資料,這可代表人類消化系統的正常(健康)狀況。以一個特殊個體所得的60組,每組10個數據的資料,與該正常情形下的平均數據資料進行計算,就可以得到 該分散關係數值。分散關係數值即是本發明最終求得的指標,越接近1,該生理系統的運作可視為越正常。 The last step of the method is: collecting the complex array M coefficients obtained in step S05, and calculating each group of M coefficients to perform steps S01 to S05 on the plurality of samples in the normal state of the living body (human in this example). The value of the dispersion relationship corresponding to the average of the M coefficients (S06). As can be seen from the above examples, after completing steps S01 to S05 once, 60 sets of data of 10 data sets per group can be obtained for the digestive system of the pancreas and duodenum. Take several of the normal human conditions, such as 1000, and the samples repeat the steps. For the digestive system, there will be 1000 such data. Taking the average of the data, you will also get 60 groups of 10 data per group, which can represent the normal (healthy) condition of the human digestive system. 60 groups of a special individual, each group of 10 data, and the average data in the normal case are calculated, you can get The value of the dispersion relationship. The value of the dispersion relationship is the final index obtained by the present invention. The closer to 1, the more normal the operation of the physiological system can be.
關於分散關係數值的計算方式,請見第5圖,該圖為分散關係數值計算步驟的流程圖。首先,將每組的M個係數與對應M個係數平均值的差異量的絕對值的和,依數值小至大分階給以1到L分的賦值,L為正整數,1分代表差異量為零至次一階,L分代表差異量為最大至前一階(S11)。採L=6,即1到6分。若前述差異量的絕對值中之最大值為3.6,則每0.6為一階,各代表不同分數,如:0~0.6為1分、0.6以上到1.2為2分等等。每一階都有其分配的分數。 For the calculation of the value of the dispersion relationship, see Figure 5, which is a flow chart of the numerical calculation steps of the dispersion relationship. First, the sum of the absolute values of the difference between the M coefficients of each group and the average value of the corresponding M coefficients is assigned to a value of 1 to L according to a small to large step, L is a positive integer, and 1 is a difference. From zero to the second order, the L score represents the maximum amount of difference to the previous order (S11). Take L=6, which is 1 to 6 minutes. If the maximum value of the absolute values of the aforementioned difference amounts is 3.6, each 0.6 is a first order, and each represents a different score, such as: 0 to 0.6 is 1 minute, 0.6 or more to 1.2 is 2 points, and the like. Each step has its assigned score.
接著,計算1到L分各有多少組(S12)。舉例來說,1分有5組,2分10組,3分有20組,4分有15組,5分有10組,6分有0組。下一步:由大到小設定L個整數值(S13)。舉例來說,10、9、8、5、2與-1。整數值可以是負的,其間的差異可以是任何正整數,用途是要調整人體某系統可能發生問題時的警告程度。整數值間越密集,到達警示程度的數值會越接近1。實作上,步驟S12與S13可以互換。 Next, it is calculated how many groups each of 1 to L are (S12). For example, 1 point has 5 groups, 2 points and 10 groups, 3 points have 20 groups, 4 points have 15 groups, 5 points have 10 groups, and 6 points have 0 groups. Next step: Set L integer values from large to small (S13). For example, 10, 9, 8, 5, 2, and -1. The integer value can be negative, and the difference between them can be any positive integer. The purpose is to adjust the degree of warning when a problem occurs in a certain system of the human body. The denser the integer values, the closer the value of the alert will be to 1. In practice, steps S12 and S13 can be interchanged.
最後,將1到L分的組數分別乘以由大到小對應的整數值後相加,其結果除以總組數與最大整數值之積(S14)。依上述例子,其計算為(5x10+10x9+20x8+15x5+10x2+0x(-1))/(60x10)=0.658。如果1分有60組,上述計算的結果就為1,也就是一次的觀測結果與 平均值完全相同。0.658表示該生理系統可能已經有點問題了。 Finally, the number of groups of 1 to L is multiplied by the integer value corresponding to the largest to the smallest, and the result is divided by the product of the total number of groups and the largest integer value (S14). According to the above example, it is calculated as (5x10+10x9+20x8+15x5+10x2+0x(-1))/(60x10)=0.658. If there are 60 groups of 1 point, the result of the above calculation is 1, that is, one observation and The average is exactly the same. 0.658 indicates that the physiological system may have been a bit problematic.
本方法不限於對生物系統運作表現進行評估,若某疾病會影響特定器官或多個系統,也可以利用本方法,設定多個跨生物生理系統的器官(即複數組N位元組的位元值的選取),進行觀察分析,其結果可以顯現受該疾病的影響程度。 The method is not limited to assessing the performance of a biological system. If a disease affects a particular organ or systems, the method can also be used to set multiple organs across the biophysical system (ie, a complex array of N-bit bits). The selection of the values), observation and analysis, the results can be shown to be affected by the disease.
本發明所提出的生物系統運作表現評估方法,實際上可依靠一套電子設備10,來取得相關的數據。該電子設備10如第6圖所示,包含一發光單元100、一電位量測單元200、一類比數位轉換單元300、一運算單元400、一顯示單元500,及一電力供應單元600。以下分別說明該些元件之功能。 The biological system performance evaluation method proposed by the present invention can actually rely on a set of electronic devices 10 to obtain relevant data. As shown in FIG. 6, the electronic device 10 includes a light emitting unit 100, a potential measuring unit 200, an analog digital converting unit 300, an arithmetic unit 400, a display unit 500, and a power supply unit 600. The functions of these components are explained below.
發光單元100可用以向一生物之皮膚的一第一區域持續發射具有特定波長的一訊號光。最好,該發光單元100為一光學二極體,可發出特定波長為860nm~890nm的近紅外線光。電位量測單元200可貼附於該生物之皮膚的一第二區域,用以量測該第二區域的電位,可以使用光學二極體為之。第一區域與第二區域的區別已於上文說明,此處不予贅述。類比數位轉換單元300與該電位量測單元200電連接,用以在一特定時間內,以一取樣頻率將量測到的電位值轉換為對應的二進位數值。 The illumination unit 100 can be used to continuously emit a signal light having a specific wavelength to a first region of the skin of a living being. Preferably, the light-emitting unit 100 is an optical diode capable of emitting near-infrared light having a specific wavelength of 860 nm to 890 nm. The potential measuring unit 200 can be attached to a second area of the skin of the living body for measuring the potential of the second area, and an optical diode can be used. The difference between the first area and the second area has been explained above and will not be described here. The analog digital conversion unit 300 is electrically connected to the potential measuring unit 200 for converting the measured potential value to a corresponding binary value at a sampling frequency within a specific time.
運算單元400與類比數位轉換單元300電連接,用以依時序取得一表現數據,該表現數據為一門檻區間以外的該 些二進位數值轉化的複數個0與1的位元值、取出該表現數據中複數組N位元組的位元值,進行快速傅立葉轉換運算、取快速傅立葉轉換運算所得每組前M個最大週期餘弦波之對應的M個係數,及集合所得的複數組M個係數,計算每一組M個係數對該生物系統正常狀態下的複數個樣品經電子設備10所獲得之對應M個係數平均值的分散關係數值。也就是說,運算單元400可執行第5圖中分散關係數值的所有計算步驟。 The operation unit 400 is electrically connected to the analog digital conversion unit 300 for acquiring performance data according to time series, and the performance data is outside the threshold interval. The binary values of the binary values are converted into a plurality of 0 and 1 bit values, and the bit values of the complex array N bytes in the performance data are taken out, and the fast Fourier transform operation is performed, and the first M max of each group obtained by the fast Fourier transform operation is obtained. The corresponding M coefficients of the periodic cosine wave, and the complex array M coefficients obtained by the set, calculate the average M coefficients of each group of M coefficients obtained by the electronic device 10 for the plurality of samples in the normal state of the biological system. The value of the value of the dispersion relationship. That is to say, the arithmetic unit 400 can perform all the calculation steps of the value of the dispersion relationship in FIG.
顯示單元500與運算單元400電連接,用以顯示運算單元400處理數據之結果。電力供應單元600則與前述所有單元電連接,用以提供該些單元運作時所需的電力。 The display unit 500 is electrically connected to the operation unit 400 for displaying the result of the operation unit 400 processing the data. The power supply unit 600 is electrically connected to all of the aforementioned units to provide power required for the units to operate.
電子設備10可進一步與一伺服器20有線或無線連接,伺服器20具有一資料庫,可儲存各生物系統正常狀態下的數個樣品經電子設備10所獲得之對應M個係數及其平均值。由於電子設備10中運算單元400的儲存空間不大,而這些係數平均值資料量很大,所以必須靠伺服器20的資料庫來協助儲存,並可隨時更新其數值。 The electronic device 10 can be further connected to a server 20 by wire or wirelessly. The server 20 has a database for storing corresponding M coefficients and average values obtained by the electronic device 10 for several samples in a normal state of each biological system. . Since the storage space of the computing unit 400 in the electronic device 10 is not large, and the average value of these coefficients is large, the database of the server 20 must be used to assist in storage, and the value thereof can be updated at any time.
雖然本發明已以實施方式揭露如上,然其並非用以限定本發明,任何所屬技術領域中具有通常知識者,在不脫離本發明之精神和範圍內,當可作些許之更動與潤飾,因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。 Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and those skilled in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.
Claims (20)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW106119650A TWI638638B (en) | 2017-06-13 | 2017-06-13 | Method for evaluating operational performance of a biological system and apparatus for fetching data required therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW106119650A TWI638638B (en) | 2017-06-13 | 2017-06-13 | Method for evaluating operational performance of a biological system and apparatus for fetching data required therefor |
Publications (2)
Publication Number | Publication Date |
---|---|
TWI638638B true TWI638638B (en) | 2018-10-21 |
TW201902429A TW201902429A (en) | 2019-01-16 |
Family
ID=64802894
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW106119650A TWI638638B (en) | 2017-06-13 | 2017-06-13 | Method for evaluating operational performance of a biological system and apparatus for fetching data required therefor |
Country Status (1)
Country | Link |
---|---|
TW (1) | TWI638638B (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5771261A (en) | 1995-09-13 | 1998-06-23 | Anbar; Michael | Telethermometric psychological evaluation by monitoring of changes in skin perfusion induced by the autonomic nervous system |
-
2017
- 2017-06-13 TW TW106119650A patent/TWI638638B/en active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5771261A (en) | 1995-09-13 | 1998-06-23 | Anbar; Michael | Telethermometric psychological evaluation by monitoring of changes in skin perfusion induced by the autonomic nervous system |
Also Published As
Publication number | Publication date |
---|---|
TW201902429A (en) | 2019-01-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Zamora-Arellano et al. | Development of a portable, reliable and low-cost electrical impedance tomography system using an embedded system | |
Athanasiou et al. | A deep learning approach to classify atherosclerosis using intracoronary optical coherence tomography | |
DK2628146T3 (en) | NEW IMAGE MODELITY USING PENETRATING RADIATIONS | |
Wisotzky et al. | Validation of two techniques for intraoperative hyperspectral human tissue determination | |
Liu et al. | Detection of heterogeneity in multi-spectral transmission image based on spatial pyramid matching model and deep learning | |
JP6591724B1 (en) | Segmented electrode | |
Baran et al. | Application of machine learning algorithms to the discretization problem in wearable electrical tomography imaging for bladder tracking | |
Szigeti et al. | Motion based X-ray imaging modality | |
Obeidat et al. | An embedded system based on raspberry pi for effective electrocardiogram monitoring | |
US20180353076A1 (en) | Method for evaluating operational performance of a biological system and apparatus for fetching data required therefor | |
TWI638638B (en) | Method for evaluating operational performance of a biological system and apparatus for fetching data required therefor | |
Humeau-Heurtier et al. | Multiscale compression entropy of microvascular blood flow signals: Comparison of results from laser speckle contrast and laser Doppler flowmetry data in healthy subjects | |
Li et al. | Inhalation injury grading using transfer learning based on bronchoscopy images and mechanical ventilation period | |
Menolotto et al. | Towards the development of a wearable electrical impedance tomography system: A study about the suitability of a low power bioimpedance front-end | |
TWI638641B (en) | System for sensing physiological characteristics | |
Ko et al. | U-Net-based approach for automatic lung segmentation in electrical impedance tomography | |
CN112089434B (en) | Multispectral bioluminescence tomography method and system | |
PAVLOV et al. | Calibration of the metrological characteristics of photoplethysmographic multispectral device for diagnosis the peripheral blood circulation | |
US11089979B2 (en) | Device and method for measurement of glycated hemoglobin (A1c) | |
Humeau-Heurtier et al. | Modified multiscale sample entropy computation of laser speckle contrast images and comparison with the original multiscale entropy algorithm | |
CN109124617A (en) | Method and apparatus for evaluating operation performance of biological system | |
Ibrahim et al. | Techniques for Measuring the Fluctuation of Residual Lower Limb Volume in Clinical Practices: A Systematic Review of the Past Four Decades | |
CN112649955A (en) | Optical imaging system and related apparatus, method and computer program | |
Padukone et al. | Tumor markers for cancer detection using optical sensor | |
Won et al. | Tumor size and elasticity estimation using Smartphone-based Compression-Induced scope |