Title:
PULSE DETECTION DEVICE AND PULSE DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/137555
Kind Code:
A1
Abstract:
A frame storage unit 20 stores therein a prescribed number of frames of an image captured of a region including a user's skin. A pixel value acquisition unit 30 divides the captured image into a plurality of blocks and acquires a pixel value of each block. A time-series pixel array acquisition unit 40 acquires a time-series pixel array which has arranged therein the pixel values of the respective blocks in the prescribed number of frames. A pulse data array acquisition unit 50 calculates an average value of respective elements in the time-series pixel array as a direct-current component, acquires a pulse component by subtracting the direct-current component from a prescribed element in the time-series pixel array, and acquires a pulse data array in which pulse components in a prescribed period is arranged. A pulse detection unit 60 detects a pulse rate in the form of a frequency obtained by calculating an autocorrelation of the pulse data array.
Inventors:
SUGAWARA AKIHIKO (JP)
Application Number:
PCT/JP2020/048929
Publication Date:
June 30, 2022
Filing Date:
December 25, 2020
Export Citation:
Assignee:
SONY INTERACTIVE ENTERTAINMENT INC (JP)
International Classes:
A61B5/02
Domestic Patent References:
| WO2016163019A1 | 2016-10-13 |
Foreign References:
| JP2020519332A | 2020-07-02 | |||
| JP2020121022A | 2020-08-13 | |||
| JP2020178964A | 2020-11-05 |
Attorney, Agent or Firm:
MORISHITA Sakaki (JP)
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