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FOVEA CENTERED EYE FUNDUS SCANNER

机译:FOVEA中心眼部基金会扫描仪

摘要

An apparatus and method for identifying individuals through the ocular reflectance pattern from the fundus of the eye. A fixation target is provided for positioning and focusing the eye of an individual along its visual axis, being centered on the fovea of the eye. An infrared source provides a substantially collimated source beam of infrared radiation. A scanner directs the infrared radiation into the fixated eye from a plurality of sequential angularly divergent positions forming a substantially circular locus of points substantially centered on the fovea. The light is reflected in part out of the eye and forms a reflected beam. A detector measures the intensity of the radiation reflected from the eye at each sequential location, the intensities being recorded as an identification pattern. At a later date the eye may be presented again to the apparatus in a different rotational position about its visual axis and another pattern generated. The two patterns will be substantially the same, varying only in the relative start points of the data sequences. One pattern may be rotated with respect to the other pattern to ascertain that the two patterns match, thus verifying the identity of the individual.
机译:一种通过眼底的眼部反射模式识别个体的装置和方法。提供了一种固定目标,用于将人的眼睛沿其视轴定位并聚焦,并以眼睛的中央凹为中心。红外源提供基本上准直的红外辐射源束。扫描仪将红外辐射从多个连续的角度发散位置引导到注视的眼睛中,这些位置形成基本在中央凹中心的点的基本圆形轨迹。光从眼睛中部分反射出来并形成反射光束。检测器在每个顺序位置测量从眼睛反射的辐射强度,该强度记录为识别图案。在稍后的日期,眼睛可以在围绕其视轴的不同旋转位置再次呈现给设备,并产生另一种模式。这两种模式将基本相同,仅在数据序列的相对起始点不同。一个模式可以相对于另一模式旋转,以确定两个模式匹配,从而验证个人的身份。

著录项

  • 公开/公告号AU570445B2

    专利类型

  • 公开/公告日1988-03-17

    原文格式PDF

  • 申请/专利权人 EYE-D DEVELOPMENT II LTD.;

    申请/专利号AU19840026428

  • 发明设计人 ROBERT BRIAN HILL;

    申请日1984-04-04

  • 分类号A61B3/10;A61B5/10;

  • 国家 AU

  • 入库时间 2022-08-22 06:56:48

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