Development of 3-D eye Position Registration System

长期以来，由于1)共轭双眼运动的特性，以及2)同时记录双眼的技术的困难，它一直在尝试以单眼而不是双眼的方式记录眼睛的位置。然而，非共轭眼动有一个特点，即收敛，它不能满足双眼眼动的全部位置信息。在该基金的资助下进行的研究和开发集中在如何基于先前的单眼记录技术来配准3D眼睛位置。此外，这项研究还有一个隐含的目的，那就是回顾目前流行的眼睛配准方法，并开发出更准确的方法，可能会得到当代高科技的帮助。设施。用传统的眼位配准方法--眼电图仪对新系统获得的数据进行评价。主要研究工作有：1)开发高性能计算机辅助的三维自动眼动跟踪系统；2)开发双目同时记录系统；3)进行高达500 Hz的高采样率数据采集，实现准确的眼跳配准；4)修正数据线性化的自动标定方法。结果表明，所研制的配准装置能够利用特殊的角膜缘-角膜反射法同时配准双眼的高速位置配准。

It has been trying to registrate eye position not binocurally but monocurally for long time, because of 1) characteristics of conjugate binocular eye movements, and 2) the difficulty of techniques for simultaneous recording of two eyes. However there is a characteristics of nonconjugate eye movements, that is vergence, which does not satisfy the full position information on eye movements for both eyes. The study and development done under the grant focused on how to registrate 3-D eye position based on previous one eye recording technique. Further more the study has implicit purposes to review eye registration methods which is now popular and to develop more accurate way which might be aided by contemporary high tech. Facilities. The data obtained by newly developed system was evaluated by traditional eye position registration method, electrooculograph. Main research activity done here was 1) to develop 3-D automatic eye tracking systems aided by high performance computer, 2) to develop binocular simultaneous recording system, 3) to perform high rate data acquisition up to 500Hz sampling time which make accurate registration of saccades, 4) to fix the automatic calibration methods which normalize the data linialization. The results show quite satisfactory developed facilities which enables to registrate simultaneous both eye high rate position registration with using speeial limbus-corneal reflection method.