Device and method for non-contact blood oxygen saturation measurement and calibration

Abstract

A non-contact blood oxygen saturation measurement device and a non-contact blood oxygen saturation measurement and calibration method are provided. The measurement device includes an imaging capturing device and a processor. The imaging capturing device includes a first photosensitive module and a second photosensitive module. The first photosensitive module is configured to capture an ambient light parameter, and the second photosensitive module is configured to capture a target image. The processor is configured to perform the following steps: obtaining a color-corrected image according to the target image and the ambient light parameter; detecting a region of interest in the color-corrected image; obtaining a first light variation signal, a second light variation signal, and a third light variation signal corresponding to multiple different light colors according to the region of interest; obtaining a light ratio parameter according to the first light variation signal, the second light variation signal, and third light variation signal; and obtaining a blood oxygen saturation according to the light ratio parameter.

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