BIOMETRIC INFORMATION DISPLAY DEVICE, SYSTEM, BIOMETRIC INFORMATION DISPLAY METHOD, AND BIOMETRIC INFORMATION DISPLAY PROGRAM
A biometric information display device includes circuitry, and a memory storing computer-executable instructions that cause the circuitry to display at least one biological signal waveform including a biological signal measured, and display a graphic representation representing a noise level included in the biological signal waveform at a location corresponding to a peak of the biological signal waveform.
1 . A biometric information display device comprising:
circuitry; and
a memory storing computer-executable instructions that cause the circuitry to:
display at least one biological signal waveform including a biological signal measured; and
display a graphic representation representing a noise level included in the biological signal waveform at a location corresponding to a peak of the biological signal waveform.
2 . The biometric information display device according to claim 1 , wherein the graphic representation has a shape orthogonal to an axis representing time with respect to the biological signal waveform and having a length corresponding to a magnitude of the noise level.
3 . The biometric information display device according to claim 1 , wherein the circuitry is caused to:
calculate the noise level for a designated portion of time during a measurement period in which the biological signal is measured; and
display the graphic representation representing the noise level which has been calculated.
4 . The biometric information display device according to claim 3 , wherein the circuitry is caused to calculate, as the noise level, a root mean square of the biological signal, a difference between a maximum value and a minimum value of the biological signal, a maximum amplitude of the biological signal, a maximum value of a difference between peak values of the biological signal having different polarities and being adjacent to each other in an axis representing time, or a standard deviation of the biological signal, for the designated portion of time.
5 . The biometric information display device according to claim 3 , wherein the circuitry is caused to multiply the noise level which has been calculated by n (n is a value larger than 1) and display the noise level multiplied by n.
6 . The biometric information display device according to claim 5 , wherein the circuitry is caused to display the graphic representation with one end at the location corresponding to the peak and another end extending toward a baseline which is displayed parallel to an axis representing time, or the graphic representation with one end on the baseline and another end extending toward the peak.
7 . The biometric information display device according to claim 3 , wherein the circuitry is caused to:
display the biological signal waveform that is a given one of a plurality of biological signal waveforms each including a corresponding one of a plurality of biological signals measured at different times;
calculate the noise level for each of the plurality of biological signals for the designated portion of time; and
display both the graphic representation representing the noise level of one of the biological signals in the designated portion of time used for generating the given one of the biological signal waveforms and the graphic representation representing the noise level of one of the biological signals in the designated portion of time used for generating a biological signal waveform other than the given one of the biological signal waveforms.
8 . The biometric information display device according to claim 3 , wherein the designated portion of time is set to a time period during which the biological signal of interest does not appear in the measurement period.
9 . The biometric information display device according to claim 1 , wherein the biological signal is a biomagnetic signal or a current signal calculated from biomagnetism measured.
10 . The biometric information display device according to claim 1 , wherein the biological signal is a signal derived from skeletal muscle, a signal derived from cardiac muscle, a signal derived from smooth muscle, or a signal derived from a nerve of a living body.
11 . The biometric information display device according to claim 1 , wherein the circuitry is caused to display, as the at least one biological signal waveform, a plurality of biological signal waveforms each including one of a plurality of biological signals measured at a plurality of measurement locations, and a color of the biological signal waveforms each having the noise level of equal to or higher than a preset threshold value is set different from a color of the biological signal waveforms each having the noise level of lower than the preset threshold value.
12 . A system comprising:
the biometric information display device of claim 1 ; and
a biomagnetism measurement device including:
circuitry; and
a memory storing computer-executable instructions that cause the circuitry to measure biomagnetism to generate the biological signal.
13 . A biometric information display method comprising:
displaying at least one biological signal waveform including a biological signal measured; and
displaying a graphic representation representing a noise level included in the biological signal waveform at a location corresponding to a peak of the biological signal waveform.
14 . A non-transitory computer-readable recording medium storing a program for displaying biometric information, the program, when executed by circuitry of a computer, causing the circuitry to execute:
a waveform display process of displaying at least one biological signal waveform including a biological signal measured; and
a noise level display process of displaying a graphic representation representing a noise level included in the biological signal waveform at a location corresponding to a peak of the biological signal waveform.