通过 iOS 获取心率
可能的重复：
如何检测心率不使用iOS sdk中的任何仪器？
我正在尝试找出一种方法来创建一个 iOS 应用程序来测量心率，但我无法开始了解如何继续进行。
我读到可以使用加速度计或使用带有闪光灯的相机来查看血流（尽管我不知道这是如何工作的）。
有人能帮助我解决这个问题，或者为我指明正确的方向，以便我能够弄清楚该怎么做吗？
Possible Duplicate:
How to detect heart pulse rate without using any instrument in iOS sdk?
I am trying to figure out a way to create an iOS app to measure Heart rate but I am unable to get a start on how to proceed with it.
I read that it could be possibly done using accelerometer or using the camera with the flash to see the blood flow( though I dont know how that works).
Would anyone be able to help me with this or point me at a right direction so that I would be able to figure out what to do?
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您应该能够使用相机来测量脉搏，如果握持手机的方式使覆盖镜头的手指后面有大量光线，那么您甚至可以不使用闪光灯，或者使用具有闪光灯距离相机稍远一些（就像我对 HTC HD 所做的那样）。
适用于各种手机的即时心率应用程序已经过正确测试（或者我在一篇文章中读到）并且运行良好，我已经在客户上测试了它（我是兼职 PT） - 并与常规心率监视器进行了比较，实际上发现了它更加准确，因为在心率下降之前测量速度更快。
至于如何制作应用程序，我假设您必须访问相机并检测颜色的变化，并根据变化的频率计算脉冲，
我还没有这样做，但从逻辑上讲这是有道理的。祝您好运，请与我们分享您的解决方案:)
You should be able to use the camera to measure pulses, and if the phone is held in such a way that there is a lot of light behind the finger that covers the lense then you can even do without flash, or use a phone that has the flash a bit further from the camera (as I do with my HTC HD).
The Instant HeartRate app for various phone has been tested properly (or so I read in an article) and works well, I've tested it on clients (I am a part time PT)- and compared to reagular heartrate monitors and actually found it to be more accurat as it measures faster before the heartrate drops.
As how to make the app, well I assume you will have to access the camera and detect changes in color and calculate the pulse based on the frequency of the change
I havent done this,- but logically it makes sense. I wish you the best of luck, and please share with us your solution :)