A method to eliminate the effects of breathing and pulse on pupillary diameter changes, and a visual perception system based on the pupil diameter change by stimulation.
Problem is to judge the feeling of change from pupil diameter change which excludes the effect of respiration and pulse.The pupil diameter of the viewer is measured, and the time change of the reference measurement pupil diameter is measured. At the same time, the respiration frequency is measured, and the lower frequency is used as the cutoff frequency, and the processing of the low-pass filter is applied to the reference measurement pupil diameter, and the time change of the reference pupil diameter based on the light and dark reaction which removes the effect of respiration and pulse is obtained.The pupil diameter of the content visibility measurement corresponding to the brightness of the screen on which the content (video) is displayed and the brightness of the viewpoint position in the screen are measured, and the time change of the pupil diameter of the content viewing pupil based on the light dark reaction is obtained.A reference pupil diameter table consisting of a reference pupil diameter for each combination of brightness of a screen and brightness of a viewpoint position on a standard and clear screen is generated, and the reference pupil diameter corresponding to the brightness of a screen on which the contents are displayed and the brightness of the viewpoint position in the screen in which the content is displayed is expressed as a denominator The ratio of the size of the pupil to the pupil size is identified as the viewpoints of the viewer, and the feeling of the viewer is determined.Diagram【課題】呼吸及び脈拍の影響を排除した瞳孔径変化より情感を判定する。【解決手段】視認者の瞳孔径を測定し、基準測定瞳孔径の時間変化を測定する。同時に呼吸周波数を測定し、より低い周波数を遮断周波数として、基準測定瞳孔径に低域通過濾波の処理を加え、呼吸と脈拍の影響を削除した明暗反応だけに基づく基準瞳孔径の時間変化を得る。コンテンツ(動画)が表示された画面の明るさ及び画面内の視点位置の明るさに対応するコンテンツ視認測定瞳孔径を測定し、明暗反応だけに基づくコンテンツ視認瞳孔径の時間変化を得る。基準明暗画面における画面の明るさと視点位置の明るさとの組合せ毎の基準瞳孔径からなる基準瞳孔径テーブルを生成し、コンテンツが表示された画面の明るさ及び前記コンテンツが表示された画面内の視点位置の明るさに相当する基準瞳孔径を分母とし、コンテンツ視認瞳孔径を分子とする比を視認者の注目度と特定し、視認者の情感を判定する。【選択図】図3
