Javier Hernandez,Yin Li,James Rehg,Rosalind Picard
申请号：
US14661747
公开号：
US20150265161A1
申请日:
2015.03.18
申请国别(地区):
US
年份:
2015
代理人:
摘要：
In illustrative implementations, a gyroscope, an accelerometer and a camera gather sensor data indicative of motion of a human head. The gyroscope, accelerometer and camera are each housed in, or attached to, headwear that is worn on the head. In some cases, the headwear comprises a headband, hat, cap, or structure similar to an eyeglasses frame. A computer takes the sensor data as input and calculates a heart rate and respiration rate of the human. In some cases, a computer also calculates heart rate variability. The head motion being measured is caused by forces that are transmitted, at least in part, from the chest, through the neck, and to the head. This head motion is caused, at least in part, by respiration, by heart beats, or by blood flow caused by the heart beats.
