Detection of apparent skin motion using optical flow analysis: Blood pulsation signal obtained from optical flow sequence
暂无分享,去创建一个
A skin motion imaging system with two modes of operation, diffusive and specular reflections, was developed. The system consists of image capturing and processing elements. Using optical flow analyses of skin motion at the wrist, we have detected successfully a blood pulsation signal that concurs with the electrocardiogram. The signal provides information not only about blood pulsation, but also about blood circulation and the biomechanical properties of the skin. This system may have other applications in the future, such as noncontact blood pulsation detection and evaluation of the biomechanical properties of skin, for example.
[1] Joseph D. Bronzino,et al. The Biomedical Engineering Handbook , 1995 .
[2] Hidetoshi Miike,et al. Measuring Surface Shape from Specular Reflection Image Sequence : Quantitative Evaluation of Surface Defects of Plastic Moldings , 1995 .
[3] Hidetoshi Miike,et al. Detection of Physiological Parameters without Any Physical Constraints in Bed Using Sequential Image Processing , 1996 .
[4] Michael J. Campbell,et al. Statistics at Square One , 1976, British medical journal.