Preprocessing Realistic Video for Contactless Heart Rate Monitoring Using Video Magnification

被引:13
作者
Alzahrani, Ahmed [1 ]
Whitehead, Anthony [2 ]
机构
[1] Carleton Univ, Elect & Comp Engn, Ottawa, ON, Canada
[2] Carleton Univ, Sch Informat Technol, Ottawa, ON, Canada
来源
2015 12TH CONFERENCE ON COMPUTER AND ROBOT VISION CRV 2015 | 2015年
关键词
video magnification; computer vision; stabilization preprocessing video; contactless heart rate monitoring; NONCONTACT;
D O I
10.1109/CRV.2015.41
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
This research seeks to improve the outcomes of Eulerian Video Magnification in real life scenarios. We address the core requirement in Eulerian Magnification that the person in the video be completely still. The proposed system preprocesses the video in multiple stages using subject targeting and stabilization. The resulting video is better suited to Eulerian Magnification restrictions. Our method enables the use of magnification in a variety of applications where motion is present such as monitoring the heart rate of a person using a treadmill. Stabilization, which is the core element of our research, was achieved through two methods. First, we used face tracking to generate a stabilized video with limited motion. Second, feature detection, extraction, and matching with skin selection were used to produce a stabilized video that is ready to be processed for measuring heart rate. However, skin tone and illumination in the environment adversely affected the results. Since heart rate is monitored by counting the subtle changes in skin redness related to blood flow, managing the skin's redness helps to produce more accurate results.
引用
收藏
页码:261 / 268
页数:8
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