運用攝影機之非接觸式心脈量測技術

心脈率為人體之重要生理訊號，為心血管疾病重要指標之一。現有心脈率多採用血氧濃度計、脈搏血壓計或心電圖等接觸式裝置量測，其價格較高且易產生生理不適感。為解決上述問題，本文提出一套非接觸式之心脈量測技術，以視訊分析技術達到以單支可見光攝影機量測心脈率，經實驗顯示本方法量測頭頸區域可獲得3.71%以下之平均誤差值。本方法具下列優點：（1）僅需使用一般攝影機擷取影像，成本低且取得容易；（2）非接觸式量測心脈率，可減低受測者心理負擔；（3）全自動單次量測多人心脈率；（4）無需高運算量之人臉偵測演算法，易於嵌入式系統實現；及（5）可應用在人體不同部位如頭頸、手臂及手掌等區域以估測心脈率。

關鍵字

心脈率；膚色偵測；可見光攝影機

並列摘要

Heart rate is an important physiological signal of a human body, which has been identified as an independent risk factor for cardiovascular disease. Existing heart rate measurement apparatuses such as pulse oximeter, sphygmomanometer, and electrocardiograph are cost expensive and may cause discomfort for subjects. In this paper, a contact-free heart rate measurement method is proposed for solving the above mentioned problems, which uses video analytics techniques with an ambient camera. Experimental results show that the average measurement error of our method issmaller than 3.71% on measuring head/neck area. The advantages of the proposed method include: 1) it uses a low-cost ambient light camera; 2) it eases the discomfort of people based on contact-free methodology; 3) it measures multiple persons' heart rates fully automatic; 4) it’s practicable on embedded systems since no face detector is required; and 5) it can be applied in multiple parts of a human body, such as head and neck, arm, and palm regions.

並列關鍵字

Heart Rate ； Skin Color Detection ； Ambient Light Camera

國際替代計量

運用攝影機之非接觸式心脈量測技術

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