使用視訊元件量測生命徵象的研究

本論文研究從一般的視訊元件如照相機或錄影機的影像感測元件（CCD/CMOS）進行生理信號檢測提取生命徵象（Vital Signs）的方法，此方法可以使用環境光或特定波長的光線作為照明光源或應用多波長光源照明，測得光體積描記圖（PPG）信號對應於各個波長光照後組織的血液灌流，指出血管分佈和血液細胞的反應，分析出脈搏、呼吸和血液氧含量等生命徵象，而且具有非接觸式及非侵入性的優點，以及在生活環境中隨手可得的便利性，僅利用手機照相的功能或電腦網路攝影機等，就可以簡單而有效的隨時隨地觀察自己的健康狀態，這項技術具有巨大的潛力成為個人醫療照護和遠程醫療。

關鍵字

光體積描記圖；獨立成份分析法

並列摘要

We have studied that the system can indeed extract accurate pulse measurements from ordinary webcam imagery. We use camera and camcorders (For example, home video, webcam, Mobile camera and video, etc.) to receive the images. You can check a person's vital signs and provide health indicators. The concept of using a camera to detect such health information that it is a non-contact and non-invasive device, which could measure both the pulse rate, respiratory and blood-oxygen levels simultaneously. The camera-based spectral imaging PPG system is constructed to validate the feasibility of this technique. Pulse measurements can be acquired using digital camcorders/cameras with normal ambient light as the illumination source or applying multiwavelength illumination can be achieved to understand the blood perfusion change. Corresponding to the individual wavelength LED illumination, the PPG signals can be derived. The outcome explicitly reveals the imaging PPG is able to detect blood perfusion in an illuminated tissue and indicates the vascular distribution and the blood cell response to individual wavelength LED. It is a powerful tool in assessment of the multiple physiological parameters. It is an accurate, reliable, reproducible, yet simple to measure and process. This technology has significant potential for advancing personal health care and telemedicine.

並列關鍵字

Photoplethysmography (PPG) ； Independent Component Analysis (ICA)

國際替代計量

使用視訊元件量測生命徵象的研究

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