PROBLEM TO BE SOLVED: To provide a state estimation apparatus which estimates the state of an image viewer with a light processing load.SOLUTION: The state estimation apparatus comprises: display means for displaying an image to a viewer measurement means for measuring the pupil diameter of the viewer generation means which causes the display means to display plural images with different luminances and causes the measurement means to measure the pupil diameter of the viewer, thereby generating relation information indicating the relation between the luminance and the pupil diameter and estimation means which estimates the state of the viewer on the basis of the luminance of the image displayed by the display means, a measured pupil diameter of the viewer measured by the measurement means while the display means displays the image, and the relation information.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】軽い処理負荷で映像視聴者の状態推定を行う状態推定装置を提供する。【解決手段】状態推定装置は、視聴者に対して映像を表示する表示手段と、前記視聴者の瞳孔径を測定する測定手段と、前記表示手段に複数の異なる輝度の画像を表示させ、前記測定手段に前記視聴者の瞳孔径を測定させることで輝度と瞳孔径との関係を示す関係情報を生成する生成手段と、前記表示手段が表示する映像の輝度と、前記表示手段が前記映像を表示しているときに前記測定手段が測定する前記視聴者の測定瞳孔径と、前記関係情報と、に基づき前記視聴者の状態を推定する推定手段と、を備えていることを特徴とする。【選択図】図1
