Non-contact blood-pressure measuring device and non-contact blood-pressure measuring method

A non contact blood-pressure measuring device comprising:

• an image acquirer that acquires a skin image obtained by capturing skin of a user;
• a pulse-wave timing calculator that calculates a temporal change of luminance in the skin image by using the skin image and calculates, as a pulse-wave timing, time information indicative of a time at which the luminance reaches a peak;
• a radio wave acquirer that acquires a signal of a radio wave reflected by the user and received by a reception antenna;
• a heartbeat timing calculator that calculates a temporal change of a distance between the user and the reception antenna by using the signal of the radio wave acquired by the radio wave acquirer and calculates, as a heartbeat timing, time information indicative of a time at which the distance reaches a peak;
• and
• a blood-pressure determiner that determines blood pressure of the user on the basis of a time difference between the pulse-wave timing and the heartbeat timing.