An emotion estimation device capable of more reliable emotion estimation and more stable emotion estimation is provided. The present invention acquires a brain potential signal of a subject, acquires a face image of the subject, acquires a pupil diameter of the subject, acquires brightness information of a subject to be visually recognized, and acquires an acquired pupil diameter. Based on the brightness information and the correspondence between the brightness information acquired in advance and the pupil diameter of the subject, the degree of attention representing the pupil diameter from which the influence of the brightness of the visual target is eliminated is calculated, and the acquired facial image Based on the amount of displacement of each position of the predetermined part from the position of the predetermined part in a preset normal time, a facial image feature amount representing the degree of expression change is calculated, and the acquired brain potential signal The brain potential data is calculated based on a signal in a specific frequency band resulting from the brain activity extracted from the subject, and the subject's emotion is estimated based on the calculated attention level, facial image feature amount, and brain potential data. Emotion estimation deviceより信頼性のある感情推定、かつより安定的な感情推定が可能な感情推定装置を提供する。 本発明は、被験者の脳電位信号を取得し、被験者の顔映像を取得し、被験者の瞳孔径を取得し、被験者の視認対象の明るさ情報を取得し、取得された瞳孔径、取得された明るさ情報、及び予め取得された明るさ情報と被験者の瞳孔径との対応関係に基づいて、視認対象の明るさの影響を消去した瞳孔径を表す注目度を算出し、取得された顔映像の所定部位のそれぞれの位置の、予め設定された平常時における所定部位のそれぞれの位置からの変位量に基づいて、表情変化の度合いを表す顔画像特徴量を算出し、取得された脳電位信号から抽出された脳活動に起因する特定の周波数帯の信号に基づいて脳電位データを算出し、並びに、算出された注目度、顔画像特徴量、及び脳電位データに基づいて被験者の感情を推定する感情推定装置である。
