近赤外瞳孔検出法に基づくカラーカメラ顔画像中の高精度実時間瞳孔位置推定

摘要

A recent finding showed that infants with autism do not tend to look into their mother's eyes. The disease can be diagnosed by examining the eccentricity of the infant's gaze distribution from the mother's eyes and showing a video of the mother's face on a display screen. In the present study, to cope with a lot of examination, we develop a system that immediately detects the pupil positions in the mother's face video provided by the color camera using our robust pupil detection technique. The system consists of one color camera and two monochrome cameras with near-infrared light sources. All cameras are calibrated. The monochrome camera determines the 3D positions of the mother's pupil centers, which are transformed into the coordinates in the color camera image. These processes were easily performed with 60 fps. In addition, the experimental results show the precise pupil center detection in the color face videos.%自閉症は3歳までに症状が顕現化する社会性の障害を主症状とする発達障害の一つであり，正しく診断・発見されなければ，その子どもの日常生活，学校生活に大きな支障をきたす．しかし，自閉症に対する有効性の確立された薬物療法は見出されておらず，早期診断と，これに基づく早期（3歳末満）の教育的介入が，予後を改善させる唯一の道筋であり，早期に療育を開始することにより社会適応が向上することが知られている.