【摘要】：心率作為與心血管疾病密切相關(guān)的生理指標(biāo),在臨床診斷以及日常監(jiān)測中起著重要作用。本文利用成像式光電容積描記技術(shù)的原理,設(shè)計(jì)了一款心率監(jiān)測系統(tǒng),實(shí)現(xiàn)了在自然光條件下使用普通攝像頭采集面部視頻信號,并通過處理分析得到被測者心率的功能。首先使用攝像頭采集被測者的面部視頻信號,截取額頭部位作為感興趣區(qū)域,然后使用歐拉放大方法處理圖像,求得圖像灰度均值,得到血液容積脈搏波波形,最后轉(zhuǎn)化至頻域求得心率。本系統(tǒng)使用器材簡單,操作簡便,可以快速準(zhǔn)確地測得被測者的心率。
[Abstract]:Heart rate, as a physiological index closely related to cardiovascular disease, plays an important role in clinical diagnosis and daily monitoring. Based on the principle of imaging photoelectric plethysmography, a heart rate monitoring system is designed in this paper, which realizes the function of collecting facial video signal with ordinary camera under natural light condition, and getting the heart rate of measured person by processing and analyzing. Firstly, the facial video signals of the subjects were collected by using the camera, the frontal part was intercepted as the region of interest, and then the image was processed by Euler amplification method, and the mean value of the gray level of the image was obtained, and the pulse wave waveform of the blood volume was obtained. Finally, the heart rate is obtained in frequency domain. The system is simple and easy to operate, and can measure heart rate quickly and accurately.
【作者單位】： 山東大學(xué)信息科學(xué)與工程學(xué)院;
【基金】：山東省自主創(chuàng)新級成果轉(zhuǎn)化專項(xiàng)計(jì)劃(2015ZDXX0801A01)
【分類號】：R540.4;TP391.41
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本文編號：2346939