US 12,273,619 B2
Image capturing device, biological information acquisition device, and image capturing method
Ryota Tomizawa, Sakai (JP); Hinatsu Ohgane, Sakai (JP); Tetsuya Okumura, Sakai (JP); and Yoshihisa Adachi, Sakai (JP)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP)
Filed by SHARP KABUSHIKI KAISHA, Sakai (JP)
Filed on Jan. 19, 2022, as Appl. No. 17/579,518.
Claims priority of application No. 2021-037363 (JP), filed on Mar. 9, 2021.
Prior Publication US 2022/0294985 A1, Sep. 15, 2022
Int. Cl. H04N 5/232 (2006.01); A61B 5/024 (2006.01); H04N 23/611 (2023.01); H04N 23/667 (2023.01)
CPC H04N 23/667 (2023.01) [A61B 5/02416 (2013.01); H04N 23/611 (2023.01)] 8 Claims
OG exemplary drawing
 
1. An image capturing device comprising:
a sensor device configured to capture a moving image having a 4K or higher resolution;
an imaging control unit configured to, in a case that the moving image contains a living body, switch an image capturing mode, in which the sensor device captures the moving image, from a first image capturing mode to a second image capturing mode, the second image capturing mode providing a higher resolution for the captured moving image, than a resolution for the captured moving image provided by the first image capturing mode, in detecting an amount of change in pulse wave information representing a pulse wave of the living body in the captured moving image;
a judgment unit for determining whether or not the living body is reflected in the moving image; and
a biological information acquisition unit configured to acquire the pulse wave information from the moving image captured in the second image capturing mode, wherein
the biometric information acquisition section acquires the pulse wave information by identifying (i) a partial region of the living body, (ii) a plurality of sites from the partial region, and (iii) a site, among the plurality of sites, that has a largest pixel value, as a region of interest, and acquiring the pulse wave information from the region of interest.