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    IMAGING SYSTEM, IMAGING METHOD, AND COMPUTER READABLE MEDIUM
    1.
    发明申请
    IMAGING SYSTEM, IMAGING METHOD, AND COMPUTER READABLE MEDIUM 有权

    公开(公告)号：US20250046047A1

    公开(公告)日：2025-02-06

    申请号：US18926993

    申请日：2024-10-25

    Applicant: NEC Corporation

    Inventor： Keiichi CHONO ,  Ryuichi Akashi ,  Yuka Ogino

    IPC: G06V10/141 ,  G06V40/18 ,  G06V40/19

    Abstract: An imaging system (10) includes: iris imaging means (1) for photographing an iris of a subject; first irradiation means (2a) for applying light to the subject; and second irradiation means (2b) for applying light to the subject in such a manner that an angle between an optical axis of the light emitted from the second irradiation means (2b) and an optical axis of the iris imaging means (1) is larger than an angle between an optical axis of the light emitted from the first irradiation means (2a) and the optical axis of the iris imaging means (1).

    INFORMATION PROVISION SYSTEM, INFORMATION PROVISION METHOD, AND STORAGE MEDIUM
    5.
    发明申请
    INFORMATION PROVISION SYSTEM, INFORMATION PROVISION METHOD, AND STORAGE MEDIUM 有权

    公开(公告)号：US20210409396A1

    公开(公告)日：2021-12-30

    申请号：US17294795

    申请日：2018-11-21

    Applicant: NEC Corporation

    Inventor： Chisato FUNAYAMA ,  Masato TSUKADA ,  Keiichi CHONO ,  Yuka OGINO ,  Hiroshi IMAI ,  Shoji YACHIDA ,  Takashi SHIBATA

    IPC: H04L29/06

    Abstract: Provided are a system, a method, and the like which contribute to more reliably and smoothly providing information relating to an authentication result to a person who has been subjected to authentication. An information provision system according to an embodiment of the present invention comprises: an authentication unit which authenticates an authentication subject, who is to be subjected to authentication, using a captured image of the authentication subject; a determination unit which, in accordance with information about the authentication subject or the conditions of the authentication subject, determines the transmission destination to which information relating to the authentication result is to be transmitted in order to notify the authentication subject of the authentication result; and a transmission unit which transmits the information to the determined transmission destination.

    VIDEO ENCODING METHOD, VIDEO DECODING METHOD, VIDEO ENCODING DEVICE, VIDEO DECODING DEVICE, AND PROGRAM
    6.
    发明申请
    VIDEO ENCODING METHOD, VIDEO DECODING METHOD, VIDEO ENCODING DEVICE, VIDEO DECODING DEVICE, AND PROGRAM 审中-公开

    公开(公告)号：US20200296366A1

    公开(公告)日：2020-09-17

    申请号：US16082018

    申请日：2017-11-15

    Applicant: NEC CORPORATION

    Inventor： Keiichi CHONO

    IPC: H04N19/119 ,  H04N19/96 ,  H04N19/46 ,  H04N19/176

    Abstract: A video encoding device 10 includes: an quadtree split flag encoding unit 11 for entropy-encoding a flag indicating whether or not a block is partitioned based on a quadtree structure; a skip flag encoding unit 12 for entropy-encoding a skip flag of an end node in a quadtree structure; a binary tree information encoding unit 13 for entropy-encoding a flag indicating whether or not a block of the end node in the quadtree structure is partitioned based on a binary tree structure and a horizontal/vertical splitting direction flag indicating a splitting direction; and a size multiplexing unit 14 for multiplexing information indicating a minimum size of partitioning based on the binary tree structure, in a bitstream, wherein in the case where a node of a size equal to the minimum size is further partitioned based on the binary tree structure, the binary tree information encoding unit 13 does not entropy-encode the horizontal/vertical splitting direction flag at the node.

    VIDEO ENCODING METHOD, VIDEO DECODING METHOD, VIDEO ENCODING DEVICE, VIDEO DECODING DEVICE, AND PROGRAM
    8.
    发明申请
    VIDEO ENCODING METHOD, VIDEO DECODING METHOD, VIDEO ENCODING DEVICE, VIDEO DECODING DEVICE, AND PROGRAM 审中-公开

    公开(公告)号：US20190068995A1

    公开(公告)日：2019-02-28

    申请号：US16080721

    申请日：2017-11-15

    Applicant: NEC CORPORATION

    Inventor： Keiichi CHONO

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

    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.

    IMAGE QUANTIZATION PARAMETER ENCODING METHOD AND IMAGE QUANTIZATION PARAMETER DECODING METHOD
    9.
    发明申请
    IMAGE QUANTIZATION PARAMETER ENCODING METHOD AND IMAGE QUANTIZATION PARAMETER DECODING METHOD 审中-公开
    图像量化参数编码方法和图像量化参数解码方法

    公开(公告)号：US20160360203A1

    公开(公告)日：2016-12-08

    申请号：US15238587

    申请日：2016-08-16

    Applicant: NEC Corporation

    Inventor： Keiichi CHONO ,  Hirofumi Aoki

    IPC: H04N19/126 ,  H04N19/44 ,  H04N19/13

    CPC classification number: H04N19/126 ,  H04N19/13 ,  H04N19/154 ,  H04N19/1887 ,  H04N19/44 ,  H04N19/463 ,  H04N19/91

    Abstract: An image quantization parameter encoder includes: a prediction unit for generating a predicted quantization parameter from a past reconstructed quantization parameter; a computing unit for generating a delta quantization parameter from a quantization parameter and the predicted quantization parameter; and a quantization parameter encoding unit for binary-arithmetic-encoding a first bin indicating whether the delta quantization parameter is significant; and when the delta quantization parameter is determined to be significant, other bins, which are encoded subsequent to the first bin, indicating an absolute value of the delta quantization parameter, and a sign bin, which is encoded subsequent to the other bins, indicating whether the delta quantization parameter is positive or negative, wherein the binary-arithmetic-encoding is performed using contexts for the first bin and the other bins, and using no context for the sign bin, and wherein the binary-arithmetic-encoding is performed using a first context for the first bin and using a second context for the other bins.

    Abstract translation: 图像量化参数编码器包括：预测单元，用于从过去的重建量化参数生成预测量化参数; 计算单元，用于从量化参数和所述预测量化参数产生增量量化参数; 以及量化参数编码单元，用于对指示所述增量量化参数是否有效的第二存储体进行二进制运算编码; 并且当Δ量化参数被确定为有效时，在第一个仓之后被编码的指示增量量化参数的绝对值的其他箱和在另一箱之后被编码的符号仓，指示是否 Δ量化参数是正或负，其中使用用于第一bin和另一个bin的上下文来执行二进制算术编码，并且不使用用于符号仓的上下文，并且其中二进制算术编码是使用 第一个bin的第一个上下文，另一个bin使用第二个context。

    VIDEO ENCODING DEVICE, VIDEO ENCODING METHOD, AND VIDEO ENCODING PROGRAM
    10.
    发明申请
    VIDEO ENCODING DEVICE, VIDEO ENCODING METHOD, AND VIDEO ENCODING PROGRAM 审中-公开
    视频编码设备，视频编码方法和视频编码程序

    公开(公告)号：US20160330464A1

    公开(公告)日：2016-11-10

    申请号：US15107689

    申请日：2015-01-27

    Applicant: NEC Corporation

    Inventor： Kensuke SHIMOFURE ,  Naoya TSUJI ,  Takayuki ISHIDA ,  Suguru NAGAYAMA ,  Keiichi CHONO

    IPC: H04N19/42 ,  H04N19/40 ,  H04N19/176 ,  H04N19/70 ,  H04N19/156

    CPC classification number: H04N19/42 ,  H04N19/103 ,  H04N19/156 ,  H04N19/157 ,  H04N19/176 ,  H04N19/18 ,  H04N19/194 ,  H04N19/40 ,  H04N19/70

    Abstract: A video encoding device includes: a first video encoding section 11 for encoding an input image to generate first coded data; a buffer 12 for storing the input image; a coded data transcoding/merging section 13 for transcoding and then merging the first coded data generated by the first video encoding section 11, to generate second coded data; and a second video encoding section 14 for estimating a syntax value for encoding the input image stored in the buffer 12 based on the second coded data supplied from the coded data transcoding/merging section 13, to generate a bitstream. The first video encoding section 11 has a function of handling a first encoding process included in a second encoding process handled by the second video encoding section 14. The coded data transcoding/merging section 13, in the case where a predetermined condition is met, merges frequency transform/quantization blocks in the second encoding process.

    Abstract translation: 视频编码装置包括：第一图像编码部分11，用于对输入图像进行编码以产生第一编码数据; 用于存储输入图像的缓冲器12; 编码数据代码转换/合并部分13，用于对由第一视频编码部分11产生的第一编码数据进行代码转换，然后合并，以产生第二编码数据; 以及第二视频编码部分14，用于基于从编码数据代码转换/合并部分13提供的第二编码数据估计用于对存储在缓冲器12中的输入图像进行编码的语法值，以生成比特流。 第一视频编码部分11具有处理由第二视频编码部分14处理的第二编码处理中包括的第一编码处理的功能。编码数据代码转换/合并部分13在满足预定条件的情况下合并 第二编码处理中的频率变换/量化块。

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