US 12,260,962 B2
Physiological information acquisition device, processing device, and recording medium
Takuya Kawashima, Tokorozawa (JP); and Wataru Matsuzawa, Tokorozawa (JP)
Assigned to NIHON KOHDEN CORPORATION, Tokyo (JP)
Filed by NIHON KOHDEN CORPORATION, Tokyo (JP)
Filed on Apr. 4, 2022, as Appl. No. 17/712,514.
Claims priority of application No. 2021-068291 (JP), filed on Apr. 14, 2021.
Prior Publication US 2022/0336105 A1, Oct. 20, 2022
Int. Cl. G16H 50/30 (2018.01)
CPC G16H 50/30 (2018.01) 10 Claims
OG exemplary drawing
 
1. A physiological information acquisition device configured to acquire physiological information of a subject, the physiological information acquisition device comprising:
an input interface configured to receive waveform data corresponding to a measurement waveform of the physiological information from a sensor;
a prediction unit configured to extract a feature from the waveform data using a convolutional neural network and predict a probability of the waveform data being classified into each of a plurality of classes;
an importance specification unit configured to specify an importance of the extracted feature with respect to a prediction result of the probability for at least one of the plurality of classes, the importance of the feature indicating a change in the prediction result of the probability attributable to the extracted feature; and
an output unit configured to output an indicator indicating the importance of the extracted feature together with the measurement waveform.