PROBLEM TO BE SOLVED: To increase the accuracy rate of authentication for an individual authentication device and an individual authentication program. A personal authentication device (1) calculates an image feature amount calculation unit that calculates an image feature amount from image information of a subject captured by a camera (32), and an audio feature amount from voice information generated by a subject that a microphone (31) collects. Based on the individual feature amount that synthesizes the image feature amount, the voice feature amount, and the action feature amount, the subject is calculated based on the voice feature amount calculation unit, the action feature amount calculation unit that calculates the action feature amount from the heartbeat data acquired by the heartbeat sensor, Authentication means for authenticating who is. [Selection diagram] Figure 1【課題】個人認証装置および個人認証プログラムについて、認証の正解率を上げる。【解決手段】個人認証装置１は、カメラ３２が撮像した被写体の画像情報から画像特徴量を算出する画像特徴量算出部と、マイク３１が集音した被写体が発する音声情報から音声特徴量を算出する音声特徴量算出部と、心拍センサが取得した心拍データから行動特徴量を算出する行動特徴量算出部と、画像特徴量と音声特徴量と行動特徴量を合成した個人特徴量に基づき、被写体が誰であるかを認証する認証手段とを備える。【選択図】図１
