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    AN OPTICAL SYSTEM FOR AN IMAGE ACQUISITION DEVICE
    1.
    发明公开
    AN OPTICAL SYSTEM FOR AN IMAGE ACQUISITION DEVICE 有权
    智能手机使生物特征识别虹膜图案，以及如何一个人面对纲要

    公开(公告)号：EP3001867A1

    公开(公告)日：2016-04-06

    申请号：EP15741138.0

    申请日：2015-07-13

    申请人： FotoNation Limited

    发明人： DAINTY, Christopher ,  GONCHAROV, Alexander ,  ANDORKO, Istvan ,  CORCORAN, Peter

    IPC分类号： G02B13/14 ,  G06K9/00 ,  G02B5/20 ,  H04N5/33

    CPC分类号： H04N5/30 ,  G02B5/005 ,  G02B5/208 ,  G02B5/3025 ,  G02B13/004 ,  G02B13/146 ,  G06F21/32 ,  G06K9/00604 ,  G06K9/00617 ,  H01L27/14621 ,  H01L27/14627 ,  H04N5/2254 ,  H04N5/23212 ,  H04N5/23296 ,  H04N5/332

    摘要： An optical system for an image acquisition device comprises a filter comprising a central aperture arranged to transmit both visible and selected near infra-red (NIR) wavelengths and a peripheral aperture arranged to block visible wavelengths and to transmit the NIR wavelengths. An image sensor comprises an array of pixels including pixels sensitive to visible wavelengths and corresponding pixels sensitive to the NIR wavelengths. A lens assembly is axially located between the filter and the image sensor and comprises a plurality of lens elements. The lens elements are arranged to simultaneously focus NIR light received from a given object through central and peripheral apertures of the filter and visible light received from the object through the central aperture onto the sensor surface.

    摘要翻译： 对于图像获取装置的光学系统包括过滤器包括被布置为发送可见光和近红外选择（NIR）波长和布置成阻止可见光波长，并发送所述NIR波长的周边孔的中心孔。 一种图像传感器，包括：包括像素对可见光波长敏感并且对应于NIR波长敏感像素的像素阵列组成。 透镜组件轴向地位于过滤器和图像传感器之间，并且包括透镜元件的复数。 透镜元件被布置为集中通过孔中心和外周的过滤器，并通过中心孔从所述对象接收到的可见光的从一个给定的对象接收到传感器表面同时NIR光。

    METHOD AND APPARATUS FOR VIEWING IMAGES
    2.
    发明授权
    METHOD AND APPARATUS FOR VIEWING IMAGES 有权

    公开(公告)号：EP2956905B1

    公开(公告)日：2018-07-11

    申请号：EP14701367.6

    申请日：2014-01-23

    申请人： FotoNation Limited

    发明人： MOCANU, Valentin ,  DAINTY, Christopher ,  BIGIOI, Petronel ,  CORCORAN, Peter ,  PAPAI, Ferenc

    IPC分类号： G06T5/50 ,  G06T5/00

    CPC分类号： G06T5/003 ,  G06T5/50 ,  G06T2200/21 ,  G06T2207/10148 ,  G06T2207/20052 ,  G06T2207/20104 ,  G06T2207/20221 ,  H04N5/23212 ,  H04N5/23232 ,  H04N5/23293 ,  H04N5/2356

    摘要： A computer-implemented method for viewing images on an interactive computing device comprises displaying an image from a stack comprising a display image and at least one compressed sub-image of nominally the same scene, each of the sub-images of the stack having been acquired at respective focal distances. Responsive to a user selecting a portion of the displayed image, the selected portion is mapped to a corresponding mapped portion of a sub-image within the stack according to the difference in focal distances between the displayed image and the sub-image. At least one row of compressed image blocks of the at least one sub-image extending across the mapped portion; and a reference value for a point in the compressed image stream of the sub-image preceding the row of compressed image blocks is determined. Using the reference, the row of blocks of the sub-image at least partially decoded, and a measure of focus for an area of the mapped portion coinciding with the decoded image blocks is computed to determine if at least that content of the sub-image should be displayed within a display image.

    METHOD AND APPARATUS FOR VIEWING IMAGES
    5.
    发明公开
    METHOD AND APPARATUS FOR VIEWING IMAGES 有权
    VERFAHREN UND VORRICHTUNG ZUR ANSICHT VON BILDERN

    公开(公告)号：EP2956905A1

    公开(公告)日：2015-12-23

    申请号：EP14701367.6

    申请日：2014-01-23

    申请人： FotoNation Limited

    发明人： MOCANU, Valentin ,  DAINTY, Christopher ,  BIGIOI, Petronel ,  CORCORAN, Peter ,  PAPAI, Ferenc

    IPC分类号： G06T5/50 ,  G06T5/00

    CPC分类号： G06T5/003 ,  G06T5/50 ,  G06T2200/21 ,  G06T2207/10148 ,  G06T2207/20052 ,  G06T2207/20104 ,  G06T2207/20221 ,  H04N5/23212 ,  H04N5/23232 ,  H04N5/23293 ,  H04N5/2356

    摘要： A computer-implemented method for viewing images on an interactive computing device comprises displaying an image from a stack comprising a display image and at least one compressed sub-image of nominally the same scene, each of the sub-images of the stack having been acquired at respective focal distances. Responsive to a user selecting a portion of the displayed image, the selected portion is mapped to a corresponding mapped portion of a sub-image within the stack according to the difference in focal distances between the displayed image and the sub-image. At least one row of compressed image blocks of the at least one sub-image extending across the mapped portion; and a reference value for a point in the compressed image stream of the sub-image preceding the row of compressed image blocks is determined. Using the reference, the row of blocks of the sub-image at least partially decoded, and a measure of focus for an area of the mapped portion coinciding with the decoded image blocks is computed to determine if at least that content of the sub-image should be displayed within a display image.

    摘要翻译： 用于在交互式计算设备上观看图像的计算机实现的方法包括从包括显示图像和名义上相同场景的至少一个压缩子图像的堆叠中显示图像，堆叠的每个子图像已被获取 在各自的焦距。 响应于用户选择显示图像的一部分，所选择的部分根据显示的图像和子图像之间的焦距的差异被映射到堆叠内的子图像的对应的映射部分。 至少一行在映射部分上延伸的至少一个子图像的压缩图像块的行; 并且确定压缩图像块行之前的子图像的压缩图像流中的点的参考值。 使用该参考，计算至少部分解码的子图像的块行和与解码图像块重合的映射部分的区域的焦点的度量，以确定至少该子图像的内容 应显示在显示图像中。

    AN OPTICAL SYSTEM FOR AN IMAGE ACQUISITION DEVICE
    7.
    发明公开
    AN OPTICAL SYSTEM FOR AN IMAGE ACQUISITION DEVICE 审中-公开

    公开(公告)号：EP3623857A1

    公开(公告)日：2020-03-18

    申请号：EP19206816.1

    申请日：2016-02-04

    申请人： FotoNation Limited

    发明人： GONCHAROV, Alexander ,  DAINTY, Christopher ,  CORCORAN, Peter ,  ANDORKO, Istvan

    IPC分类号： G02B13/00 ,  A61B5/117 ,  G06K9/00

    摘要： A binocular system for an image acquisition device comprises a pair of optical systems, each comprising an image sensor comprising an array of pixels including pixels sensitive to IR wavelengths for acquiring an image. A lens assembly includes a collecting lens surface with an optical axis, the lens assembly being arranged to focus IR light received from a given object distance on the sensor surface. The lens assembly includes at least a first reflective surface for reflecting collected light along an axis transverse to the optical axis so that a length of the optical system along the optical axis is reduced by comparison to a focal length of the lens assembly. Each optical system is disposed axially symmetrically about a central axis; and at least each collecting lens of the pair of optical systems is disposed about an optical axis extending away from the image sensor at an angle β to said central axis

    IMAGE ACQUISITION SYSTEM
    9.
    发明公开
    IMAGE ACQUISITION SYSTEM 有权
    图像拍摄系统

    公开(公告)号：EP3129819A1

    公开(公告)日：2017-02-15

    申请号：EP16722682.8

    申请日：2016-05-16

    申请人： FotoNation Limited

    发明人： CORCORAN, Peter ,  BIGIOI, Petronel ,  DAINTY, Christopher ,  GONCHAROV, Alexander

    IPC分类号： G02B27/00 ,  G06K9/00

    CPC分类号： G02B27/0075 ,  G06K9/00597

    摘要： An image acquisition system for acquiring iris images for use in biometric recognition of a subject includes an optical system comprising a cluster of at least 2 lenses arranged in front of a common image sensor with each lens optical axis in parallel spaced apart relationship. Each lens has a fixed focus and a different aperture to provide a respective angular field of view. The lens with the closest focus has the smallest aperture and the lens with the farthest focus has the largest aperture so that iris images can be acquired across a focal range of at least from 200mm to 300mm.