BLOOD PRESSURE MEASURING METHOD AND SYSTEM
First Claim
1. A blood pressure measuring method, comprising:
- obtaining at least one video that captures a first body area and a second body area of a testee, wherein each video from the at least one video includes a plurality of frames;
extracting, from the frames of the at least one video, a plurality of gray scale values for corresponding images that capture the first body area and a plurality of gray scale values for corresponding images that capture the second body area;
drawing a pulse-wave waveform of the first body area based on the plurality of gray scale values for the corresponding images of the first body area, and drawing a pulse-wave waveform of the second body area based on the plurality of gray scale values for the corresponding images of the second body area;
determining a pulse-wave propagation time based on the pulse-wave waveform of the first body area and the pulse-wave waveform of the second body area; and
obtaining a blood pressure value of the testee based on a corresponding relation between the pulse-wave propagation time and blood pressure.
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Abstract
A blood pressure measuring method and system. The method includes: obtaining at least one video that captures a first body area and a second body area of a testee; extracting multiple gray scale values for corresponding images that capture the first body area and multiple gray scale values for corresponding images that capture the second body area; drawing a pulse-wave waveform of the first body area based on the multiple gray scale values of the first body area, and drawing a pulse-wave waveform of the second body area based on the multiple gray scale values of the second body area; determining a pulse-wave propagation time based on the pulse-wave waveform of the first body area and the pulse-wave waveform of the second body area; and obtaining a blood pressure value of the testee based on a corresponding relation between the pulse-wave propagation time and blood pressure.
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Citations
20 Claims
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1. A blood pressure measuring method, comprising:
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obtaining at least one video that captures a first body area and a second body area of a testee, wherein each video from the at least one video includes a plurality of frames; extracting, from the frames of the at least one video, a plurality of gray scale values for corresponding images that capture the first body area and a plurality of gray scale values for corresponding images that capture the second body area; drawing a pulse-wave waveform of the first body area based on the plurality of gray scale values for the corresponding images of the first body area, and drawing a pulse-wave waveform of the second body area based on the plurality of gray scale values for the corresponding images of the second body area; determining a pulse-wave propagation time based on the pulse-wave waveform of the first body area and the pulse-wave waveform of the second body area; and obtaining a blood pressure value of the testee based on a corresponding relation between the pulse-wave propagation time and blood pressure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A blood pressure measuring system, comprising:
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a video capture device configured to obtain at least one video that captures a first body area and a second body area of a testee, wherein each video from the at least one video includes a plurality of frames; a gray-scale-value extraction device connected with the video capture device and configured to extract, from the frames of the at least one video, a plurality of gray scale values for corresponding images that capture the first body area and a plurality of gray scale values for corresponding images that capture the second body area; a pulse-wave drawing device connected with the gray-scale-value extraction device and configured to draw a pulse-wave waveform of the first body area based on the plurality of gray scale values for the corresponding images of the first body area and to draw a pulse-wave waveform of the second body area based on the plurality of gray scale values for the corresponding images of the second body area; a pulse-wave-propagation-time determination device connected with the pulse-wave drawing device and configured to determine a pulse-wave propagation time based on the pulse-wave waveform of the first body area and the pulse-wave waveform of the second body area; and a blood-pressure acquisition device connected with the pulse-wave-propagation-time determination device and configured to obtain a blood pressure value of the testee based on a corresponding relation between the pulse-wave propagation time and blood pressure. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification