Eye movement analysis system using computerized image recognition.
A new technique for an eye movement analysis system utilizing infrared video recording and a computerized image recognition method is presented. The system consists of an infrared lighting apparatus, a very small infrared video charge-coupled device camera, a video tape recorder, an analogue-digital converter, and microcomputers. This system makes it possible to simultaneously analyze the slow-phase velocity quantitatively not only of the horizontal and vertical but also of the rotatory components of the energy-induced nystagmus. The maximum slow-phase velocity of the rotatory component of energy-induced nystagmus was found to be 4.1 degrees per second on an average in this study.
Yamanobe
S
S
Department of Otorhinolaryngology, Nippon Medical School, Tokyo, Japan.
Taira
S
S
Morizono
T
T
Yagi
T
T
Kamio
T
T
D000328:Adult; D000703:Analog-Digital Conversion; D005133:Eye Movements; D006801:Humans; D007091:Image Processing, Computer-Assisted; D007259:Infrared Rays; D008297:Male; D008838:Microcomputers; D014743:Videotape Recording