公开(公告)号：US20200163560A1

公开(公告)日：2020-05-28

申请号：US16202110

申请日：2018-11-28

Applicant: NATIONAL YUNLIN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Chuan-Yu CHANG ,  Hsiang-Chi LIU ,  Matthew Huei-Ming MA

IPC: A61B5/024 ,  G06T7/73 ,  G06K9/00 ,  G06T7/00 ,  A61B5/00 ,  A61B5/11

Abstract: A heart rate detection method includes a facial image data acquiring step, a feature points recognizing step, an effective displacement signal generating step and a heart rate determining step. The feature points recognizing step is for recognizing a plurality of feature points, wherein a number range of the feature points is from three to twenty, and the feature points include a center point between two medial canthi, a point of a pronasale and a point of a subnasale of the face. The effective displacement signal generating step is for calculating an original displacement signal, wherein the original displacement signal is converted to an effective displacement signal. The heart rate determining step is for transforming the effective displacement signals of each of the feature points to an effective spectrum, wherein a heart rate is determined from one of the effective spectrums corresponding to the feature points, respectively.