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    Iris authentication device, iris authentication method and recording medium
    61.
    发明授权
    Iris authentication device, iris authentication method and recording medium 有权

    公开(公告)号：US11568681B2

    公开(公告)日：2023-01-31

    申请号：US17278719

    申请日：2018-09-27

    Applicant: NEC Corporation

    Inventor： Takashi Shibata ,  Shoji Yachida ,  Chisato Funayama ,  Masato Tsukada ,  Yuka Ogino ,  Keiichi Chono ,  Emi Kitagawa ,  Yasuhiko Yoshida ,  Yusuke Mori

    IPC: G06K9/00 ,  G06V40/18 ,  G06V40/16 ,  G06V40/19 ,  G06V40/70 ,  G06V40/20

    Abstract: The disclosure is inputting a first image obtained by capturing an object of authentication moving in a specific direction; inputting a second image at least for one eye obtained by capturing a right eye or a left eye of the object; determining whether the second image is of the left eye or the right eye of the object, based on information including the first image, and outputting a determination result associated with the second image as left/right information; comparing characteristic information relevant to the left/right information, the characteristic information being acquired from a memory that stores the characteristic information of a right eye and a left eye pertaining to object to be authenticated, with characteristic information associated with the left/right information, and calculating a verification score; and authenticating the object captured in the first image and the second image, based on the verification score, and outputting an authentication result.

    AUTHENTICATION DEVICE, AUTHENTICATION METHOD, AND RECORDING MEDIUM
    64.
    发明申请
    AUTHENTICATION DEVICE, AUTHENTICATION METHOD, AND RECORDING MEDIUM 有权

    公开(公告)号：US20220189213A1

    公开(公告)日：2022-06-16

    申请号：US17682000

    申请日：2022-02-28

    Applicant: NEC Corporation

    Inventor： Takashi SHIBATA ,  Shoji Yachida ,  Chisato Funayama ,  Masato Tsukada ,  Yuka Ogino ,  Keiichi Chono ,  Emi Kitagawa ,  Yasuhiko Yoshida ,  Yusuke Mori

    IPC: G06V40/70 ,  G06V40/18 ,  G06V20/52 ,  G06V40/16 ,  G06V40/19 ,  G06V40/10

    Abstract: The disclosure is detecting an authentication target who is moving in a predetermined direction in a video; inputting a first image in which an entire body of the target; calculating characteristic information from an image of the entire body in the first image, comparing the calculated characteristic information with characteristic information of the entire body stored in first memory that stores characteristic information of entire bodies of targets, and extracting candidate information of the targets from the first memory based on a first authentication result; inputting a second image in which an iris of the target; and comparing characteristic information of irises stored in second memory that stores the characteristic information of the irises of targets with characteristic information of an iris from the second image, calculating a verification score, executing second authentication on the target in the second image based on the verification score, and outputting an authentication result.

    Video encoding method, video decoding method, video encoding device, video decoding device, and program
    65.
    发明授权
    Video encoding method, video decoding method, video encoding device, video decoding device, and program 有权

    公开(公告)号：US10536724B2

    公开(公告)日：2020-01-14

    申请号：US16080721

    申请日：2017-11-15

    Applicant: NEC CORPORATION

    Inventor： Keiichi Chono

    IPC: H04N19/96 ,  H04N19/91 ,  H04N19/70 ,  H04N19/184

    Abstract: An entropy encoding control unit 13, in the case where the skip flag of a block of an end node in a quadtree structure indicates that the binary tree split flag succeeds, causes the entropy encoding unit 11 to entropy-encode the binary tree split flag and the binary tree split direction flag, and in the case where the skip flag of the block of the end node in the quadtree structure indicates that the binary tree split flag does not succeed, causes the entropy encoding unit 11 not to entropy-encode the binary tree split flag and the binary tree split direction flag, and in the case where a node of a size equal to the minimum size is further partitioned based on the binary tree structure, causes the entropy encoding unit 11 not to entropy-encode the binary tree split direction flag at the node.

    Video encoding device, video encoding method, and program
    68.
    发明授权
    Video encoding device, video encoding method, and program 有权
    视频编码设备，视频编码方法和程序

    公开(公告)号：US09521409B2

    公开(公告)日：2016-12-13

    申请号：US14359949

    申请日：2012-11-12

    Applicant: NEC Corporation

    Inventor： Keiichi Chono

    IPC: H04N19/51 ,  H04N19/523 ,  H04N19/59

    CPC classification number: H04N19/523 ,  H04N19/59

    Abstract: A video encoding device uses fractional pixel accuracy motion compensation prediction based on a DCT interpolation filter, and includes: a fractional pixel accuracy motion vector search unit 10 for estimating a fractional pixel accuracy motion vector using an interpolation filter 11 different from a DCT interpolation filter 21; and a fractional pixel accuracy motion compensation prediction signal updating unit 20 for updating a prediction signal of a position of the fractional pixel accuracy motion vector estimated by the fractional pixel accuracy motion vector search unit 10, with a prediction signal based on the DCT interpolation filter 21.

    Abstract translation: 视频编码装置使用基于DCT内插滤波器的分数像素精度运动补偿预测，并且包括：分数像素精度运动矢量搜索单元10，用于使用不同于DCT内插滤波器21的内插滤波器11来估计分数像素精度运动矢量 ; 以及分数像素精度运动补偿预测信号更新单元20，用于使用基于DCT内插滤波器21的预测信号来更新由分数像素精度运动矢量搜索单元10估计的分数像素精度运动矢量的位置的预测信号 。

    IMAGE-DATA BINARY ARITHMETIC DECODING DEVICE AND IMAGE DECODING DEVICE
    70.
    发明申请
    IMAGE-DATA BINARY ARITHMETIC DECODING DEVICE AND IMAGE DECODING DEVICE 审中-公开
    图像数据二进制解码装置和图像解码装置

    公开(公告)号：US20150215633A1

    公开(公告)日：2015-07-30

    申请号：US14422217

    申请日：2013-08-21

    Applicant: NEC Corporation

    Inventor： Keiichi Chono

    IPC: H04N19/44 ,  H04N19/13 ,  H04N19/91

    CPC classification number: H04N19/44 ,  H03M7/4018 ,  H04N19/13 ,  H04N19/52 ,  H04N19/91

    Abstract: An image-data binary arithmetic decoding device binary arithmetic decodes a binary string in which continuous 1s and a terminating 0 constitute a prefix. The image-data binary arithmetic decoding device includes continuous-one number determination means for comparing a range of binary arithmetic decoding and a binary arithmetic decoding offset obtained through looking ahead N bits from a bitstream where N is a natural number, and determining the number of continuous 1s in a binary string of the N bits.

    Abstract translation: 图像数据二进制算术解码装置二进制算术解码其中连续1和终止0构成前缀的二进制串。 图像数据二进制算术解码装置包括连续一个数量确定装置，用于比较二进制算术解码的范围和通过从其中N是自然数的比特流前视N比特获得的二进制算术解码偏移，并且确定 在N位的二进制串中连续1。

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