TWI649550B - Time-sharing multi-spectral detection device and method - Google Patents
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Abstract
本發明提供一種分時式多光譜偵測裝置及方法,分時式多光譜偵測裝置包含至少二具有不同波長的發光單元,各發光單元可分別且連續地被控制單元所啟動,讓同一時間只有單一且相同波長的發光單元投射光線至被偵測物,當其中一發光單元被啟動,控制單元同步啟動數位影像感測單元,用以取得一對一地對應到其中一發光單元投射出單一波長之光線於被偵測物的影像訊號,用於後續可準確地偵測與判斷出被偵測對象的生理訊號,並且有效地降低整體成本的發明目的。
Description
本發明係與偵測裝置有關,特別是指一種分時式多光譜偵測裝置及方法。
為了提昇嬰幼兒的睡眠安全,預防發生嬰幼兒猝死症(Sudden Infant Death Syndrome,SIDS),目前有著各式各樣的監視裝置應用於嬰兒照護工作,簡單的監視裝置是利用數位相機長時間對著嬰兒錄製影像,再將取得的數位影像透過網際網路傳送到雲端伺服器或家長的電腦、手機,讓家長可以觀察到嬰兒是否出現異常狀態,另外也有直接在嬰兒身上黏貼電極片監測生理訊號的監視方式。
再如US7,611,472號專利揭露了透過偵測口鼻氣流之方式判斷呼吸是否出現中止狀況,US5,864,291號專利與US5,400,012號專利都揭露出具有壓電感應器的金屬環圈圍住嬰幼兒,進而判斷有無呼吸中止的狀況,US4,146,885號專利則揭露利用量測氣體壓力的方式來偵測呼吸中止的狀況及發出警訊。
但是,前述各種監視裝置的整體成本都較昂貴,使用與操作方式非常不方便,而且更重要的是無法達到準確偵測出嬰兒狀態,進而也無法提供提早預警的作用。
因此,本發明的主要目的乃在於提供一種分時式多光譜偵測裝置及方法,其可準確地偵測與判斷出被偵測對象的生理訊號,並且有效地降低整體成本。
本發明所提供的分時式多光譜偵測裝置,包含至少二發光單元、一控制單元,以及一數位影像感測單元,各該發光單元分別具有不同波長;該控制單元電性連接各該發光單元,該控制單元分別且連續地啟動各該發光單元,讓同一時間只有其中一該發光單元投射出單一且相同波長的光線至一被偵測物;該數位影像感測單元電性連接該控制單元,當該其中一發光單元被啟動,該控制單元亦同步啟動該數位影像感測單元,進而取得一對一地對應到其中一該至少二發光單元投射出單一波長之光線於該被偵測物的影像訊號;藉此,本發明即可達成準確地偵測出被偵測對象的生理訊號,並且有效地降低整體成本之發明目的。
在本發明的較佳實施例中,更包含一電性連接於該數位影像感測單元與該控制單元的訊號處理單元,該數位影像感測單元取得的該影像訊號傳輸至該訊號處理單元轉換與計算是否符合預設的人體生理特徵。
在本發明的較佳實施例中,其中該數位影像感測單元取得的影像訊號先傳輸至該訊號處理單元轉換成常態差異指標,然後利用分類演算程序分離化該常態差異指標,讓分離之後的影像訊號依不同區域位置比對與判斷是否符合預設的人體生理特徵。
在本發明的較佳實施例中,另外設有一距離感測器電性連接於該控制單元,該控制單元可啟動該距離感測器,並且取得該距離感測器與該被偵測物之間的距離作為各該至少二發光單元與該數位影像感測單元的設定參數。
本發明所提供的分時式多光譜偵測方法,適用於前述分時式多光譜偵測裝置,當該至少二發光單元尚未被啟動,該控制單元先啟動該數位影像感測單元取得該被偵測物位於環境光源的影像訊號作為基礎訊號,接著該控制單元分別且連續地啟動該至少二發光單元,讓同一時間只有其中一該至少二發光單元投射出單一且相同波長的光線至該被偵測物,然後該控制單元同步啟動該數位影像感測單元,使該數位影像感測單元取得一對一地對應到其中一該至少二發光單元投射光線於該被偵測物的即時影像訊號,進而將該即時影像訊號去除該基礎訊號之後演算與判斷出該被偵測物是否具有人體生理特徵。
有關於本發明所提供的詳細構造或特點,將於後續的實施方式詳細說明中予以描述。然而,本領域技術人員應能瞭解,詳細說明以及實施本發明所列舉的特定實施例僅是用於說明,並非用以限制本發明的權利要求保護範圍。
首先要說明的是,本發明可廣泛應用於各種規格與形式的監視裝置,本領域技術人員能瞭解本實施方式的說明用語屬於不限制應用方式的上位式描述,例如程序、流程或電氣元件用語包括且不限於描述內容,不限制偵測對象,也並非限制可被偵測到的生理特徵。
本發明所提供的分時式多光譜偵測裝置,主要包含多個發光單元10、一控制單元20、一訊號處理單元30,以及一數位影像感測單元40。本較佳實施例的發光單元10係以近紅外光LED (Near-Infrared LED, NIR LED)作為舉例,各發光單元10可以是具有單一波長的LED,或者是具有相同波長的多個LED所組成,於本較佳實施例係以三個分別具有不同波長的LED為例。控制單元20電性連接於各發光單元10,控制單元20可分別且連續地啟動各發光單元10,讓同一時間只有一個發光單元10投射出單一且相同波長的近紅外光於被偵測物50,於本較佳實施例的被偵測物50係以嬰兒作為舉例。本發明另外設有一距離感測器60電性連接於控制單元20,於本較佳實施例的距離感測器60係為LED,控制單元20可啟動距離感測器60,並且取得距離感測器60與被偵測物50之間的距離,再利用上述距離作為各發光單元10與數位影像感測單元40的設定參數,讓各發光單元10可投射出適當且足夠強度的近紅外光。
數位影像感測單元40電性連接於控制單元20,當各發光單元10尚未被啟動,控制單元20可先啟動數位影像感測單元40取得被偵測物50處於環境光線的影像訊號作為基礎訊號,用以作為後續演算時可去除環境光源對被偵測物50所造成的背景雜訊。而當單一發光單元10被控制單元20啟動,控制單元20也同步啟動數位影像感測單元40取得被偵測物50的即時影像訊號,透過此方式就可以讓擷取到的即時影像訊號個別一對一地對應到具有單一且相同波長之發光單元10所反射的影像。
訊號處理單元30電性連接於數位影像感測單元40,數位影像感測單元40取得的影像訊號傳輸至訊號處理單元30,訊號處理單元30先去除前述由環境光源對被偵測物50所產生的基礎訊號,再轉換成常態差異指標(Normalized Difference Index, NDI),然後利用例如k-means, meanshift等分類演算程序分離化前述常態差異指標,讓分離之後的影像訊號依不同區域位置產生出比對訊號,即可計算與判斷辨識出各區域位置內的影像訊號是否符合預設的人體生理特徵,於本較佳實施例的人體生理特徵為皮膚特徵,若位於特定區域內的分離影像訊號符合預設的皮膚特徵,上述區域即可被標記為皮膚區域,並將上述標記結果傳送至控制單元20作為特徵資料。
本發明透過上述技術組成與偵測方法,由於各發光單元10是依次連續性分時傳送近紅外光至被偵測物50,當分別且連續傳送不同波長的發光單元10,即可對應依據被偵測物50反射至數位影像感測單元40的影像訊號,讓訊號處理單元30演算與比對判斷出被偵測物50是否具有生理特徵,以及生理特徵的區域、位置,本發明利用少量且波長不同的發光單元10即可取得充足的影像訊號,判斷結果更為精準,更可提昇準確率與預警作用,同時也能降低整體成本。
10‧‧‧發光單元
20‧‧‧控制單元
30‧‧‧訊號處理單元
40‧‧‧數位影像感測單元
50‧‧‧被偵測物
60‧‧‧距離感測器
第1圖為本發明一較佳實施例的架構圖。
Claims (5)
- 一種分時式多光譜偵測裝置,包含:至少二發光單元,各該至少二發光單元分別投射出具有不同波長的光線;一控制單元,電性連接各該至少二發光單元,該控制單元分別且連續地啟動各該至少二發光單元,讓同一時間只有其中一該至少二發光單元投射出單一且相同波長的光線至一被偵測物;以及一數位影像感測單元,電性連接該控制單元,當該至少二發光單元未被該控制單元啟動,該控制單元可啟動該數位影像感測單元取得該被偵測物於環境光源的影像訊號,而當其中一該至少二發光單元被啟動,該控制單元同步啟動該數位影像感測單元,進而取得一對一地對應到其中一該至少二發光單元投射出單一波長之光線於該被偵測物的影像訊號;藉此,更包含一電性連接於該數位影像感測單元與該控制單元的訊號處理單元,該數位影像感測單元取得的影像訊號傳輸至該訊號處理單元,該訊號處理單元先去除由該環境光源對該被偵測物所產生的基礎訊號。
- 如請求項1所述的分時式多光譜偵測裝置,該數位影像感測單元取得的該影像訊號傳輸至該訊號處理單元轉換與計算是否符合預設的人體生理特徵。
- 如請求項2所述的分時式多光譜偵測裝置,其中該數位影像感測單元取得的影像訊號傳輸至該訊號處理單元轉換成常態差異指標,然後利用分類演算程序分離化該常態差異指標,讓分離之後的影像訊號依不同區域位置比對與判斷是否符合預設的人體生理特徵。
- 如請求項1所述的分時式多光譜偵測裝置,另外設有一距離感測器電性連接於該控制單元,該控制單元可啟動該距離感測器,並且取得該距離感測器與該被偵測物之間的距離作為各該至少二發光單元與該數位影像感測單元的設定參數。
- 一種分時式多光譜偵測方法,係適用於如請求項第1項至第4項任一項所述的分時式多光譜偵測裝置,包含下列步驟:a.當該至少二發光單元尚未被啟動,該控制單元先啟動該數位影像感測單元取得該被偵測物位於環境光源的影像訊號作為基礎訊號;b.該控制單元分別且連續地啟動該至少二發光單元,讓同一時間只有其中一該至少二發光單元投射出單一且相同波長的光線至該被偵測物;c.該控制單元同步啟動該數位影像感測單元,使該數位影像感測單元取得一對一地對應到其中一該至少二發光單元投射光線於該被偵測物的即時影像訊號;以及d.將該即時影像訊號去除該基礎訊號之後,進而演算與判斷出該被偵測物是否具有人體生理特徵。
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150223700A1 (en) * | 2014-02-12 | 2015-08-13 | Koninklijke Philips N.V. | Device, system and method for determining vital signs of a subject based on reflected and transmitted light |
EP3087915A1 (en) * | 2015-04-27 | 2016-11-02 | Tata Consultancy Services Limited | Method and system for noise cleaning of photoplethysmogram signals for estimating blood pressure |
CN107205673A (zh) * | 2015-01-30 | 2017-09-26 | 皇家飞利浦有限公司 | 光体积描记装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4100412A (en) * | 1976-10-29 | 1978-07-11 | Hausdorff Harry H | Selective multichannel optical time-shared detector for chromatography |
JP2000134534A (ja) * | 1998-10-23 | 2000-05-12 | Olympus Optical Co Ltd | 電子的撮像装置 |
DE10242978A1 (de) * | 2002-09-17 | 2004-03-18 | Philips Intellectual Property & Standards Gmbh | Aktives Display |
TWI359371B (en) * | 2007-09-19 | 2012-03-01 | Pixart Imaging Inc | Optical displacement detection apparatus and optic |
JP5167755B2 (ja) * | 2007-10-19 | 2013-03-21 | 日産自動車株式会社 | 光検出装置、光検出方法および車両 |
CN101650624B (zh) * | 2008-08-13 | 2012-07-18 | 英属维京群岛速位互动股份有限公司 | 图形化使用者界面的操控装置 |
CN102062853A (zh) * | 2009-11-16 | 2011-05-18 | 英属维京群岛商齐治股份有限公司 | 光学位置检测装置及其方法 |
CN101753848B (zh) * | 2010-03-05 | 2012-10-03 | 圆展科技股份有限公司 | 亮度调整装置及亮度调整方法 |
TWI530276B (zh) * | 2014-07-08 | 2016-04-21 | 原相科技股份有限公司 | 具去噪功能之生理偵測模組及其生理偵測方法 |
JP2017075781A (ja) * | 2015-10-13 | 2017-04-20 | エーエルティー株式会社 | 3次元計測システム |
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US20150223700A1 (en) * | 2014-02-12 | 2015-08-13 | Koninklijke Philips N.V. | Device, system and method for determining vital signs of a subject based on reflected and transmitted light |
CN107205673A (zh) * | 2015-01-30 | 2017-09-26 | 皇家飞利浦有限公司 | 光体积描记装置 |
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