Living body determination device, living body determination method, and program

A living body determination method that is performed by a device, the device comprising:

• a pedestal for placing a measurement target;
• a spectroscopic device that receives light entering from the pedestal side and disperses the light into intensities corresponding to wavelengths and outputs it;
• a first light emission device that is provided at a position facing the spectroscopic device with the pedestal therebetween and emits first light having a plurality of spectra toward the pedestal;
• a second light emission device that emits second light having a plurality of spectra toward the pedestal from the spectroscopic device side;
• and an image acquisition device that receives light output from the spectroscopic device and outputs image information indicating brightness corresponding to an intensity of the light, the method comprising:
• acquiring first image information related to the measurement target from the image acquisition device for each spectrum of the first light;
• acquiring first spectroscopic information based on each first image information;
• acquiring second image information related to the measurement target from the image acquisition device for each spectrum of the second light;
• acquiring second spectroscopic information based on each second image information;
• and
• determining whether or not the measurement target is a living body based on comparison results between each of the first and second spectroscopic information and a predetermined spectral characteristic.

A non-transitory computer readable recording medium storing a program for a computer of a device, the device comprising:

• a pedestal for placing a measurement target;
• a spectroscopic device that receives light entering from the pedestal side and disperses the light into intensities corresponding to wavelengths and outputs it;
• a first light emission device that is provided at a position facing the spectroscopic device with the pedestal therebetween and emits first light having a plurality of spectra toward the pedestal;
• a second light emission device that emits second light having a plurality of spectra toward the pedestal from the spectroscopic device side;
• and an image acquisition device that receives light output from the spectroscopic device and outputs image information indicating brightness corresponding to an intensity of the light, the program causing the computer to execute:
• acquiring first image information related to the measurement target from the image acquisition device for each spectrum of the first light;
• acquiring first spectroscopic information based on each first image information;
• acquiring second image information related to the measurement target from the image acquisition device for each spectrum of the second light;
• acquiring second spectroscopic information based on each second image information;
• and
• determining whether or not the measurement target is a living body based on comparison results between each of the first and second spectroscopic information and a predetermined spectral characteristic.