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    AUTHENTICATION DEVICE, AUTHENTICATION METHOD, AND RECORDING MEDIUM
    93.
    发明申请
    AUTHENTICATION DEVICE, AUTHENTICATION METHOD, AND RECORDING MEDIUM 有权

    公开(公告)号：US20220189212A1

    公开(公告)日：2022-06-16

    申请号：US17681995

    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.

    Image quantization parameter encoding method and image quantization parameter decoding method
    96.
    发明授权
    Image quantization parameter encoding method and image quantization parameter decoding method 有权

    公开(公告)号：US09749634B2

    公开(公告)日：2017-08-29

    申请号：US15238587

    申请日：2016-08-16

    Applicant: NEC Corporation

    Inventor： Keiichi Chono ,  Hirofumi Aoki

    IPC: H04N19/126 ,  H04N19/13 ,  H04N19/463 ,  H04N19/91 ,  H04N19/154 ,  H04N19/169 ,  H04N19/44

    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.

    Video encoding device, video decoding device, video decoding method, video decoding method, and program
    97.
    发明授权
    Video encoding device, video decoding device, video decoding method, video decoding method, and program 有权
    视频编码装置，视频解码装置，视频解码方法，视频解码方法和程序

    公开(公告)号：US09532073B2

    公开(公告)日：2016-12-27

    申请号：US14931181

    申请日：2015-11-03

    Applicant: NEC CORPORATION

    Inventor： Keiichi Chono ,  Yuzo Senda ,  Junji Tajime ,  Hirofumi Aoki ,  Kenta Senzaki

    IPC: H04N7/12 ,  H04N19/60 ,  H04N19/182 ,  H04N19/17 ,  H04N19/91

    CPC classification number: H04N19/44 ,  H04N19/00781 ,  H04N19/12 ,  H04N19/156 ,  H04N19/17 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/46 ,  H04N19/60 ,  H04N19/61 ,  H04N19/91

    Abstract: A video encoding device includes: pixel bit length increasing means for increasing a pixel bit length of an input image based on pixel bit length increase information; transform means for transforming output data of the pixel bit length increasing means; entropy encoding means for entropy-encoding output data of the transform means; non-compression encoding means for non-compression-encoding input data; multiplexed data selection means for selecting output data of the entropy encoding means or output data of the non-compression encoding means; and multiplexing means for multiplexing the pixel bit length increase information in a bitstream, wherein a pixel bit length of an image corresponding to the output data of the entropy encoding means and a pixel bit length of an image corresponding to the output data of the non-compression encoding means are different from each other.

    Abstract translation: 视频编码装置包括：像素比特长度增加装置，用于基于像素比特长度增加信息增加输入图像的像素比特长度; 变换装置，用于变换像素位长度增加装置的输出数据; 熵编码装置，用于对变换装置的输出数据进行熵编码; 用于非压缩编码输入数据的非压缩编码装置; 多路复用数据选择装置，用于选择熵编码装置的输出数据或输出非压缩编码装置的数据; 以及复用装置，用于将比特流中的像素比特长度增加信息进行多路复用，其中与熵编码装置的输出数据相对应的图像的像素比特长度和与非熵编码装置的输出数据相对应的图像的像素比特长度， 压缩编码装置彼此不同。

    VIDEO CODING DEVICE, VIDEO CODING METHOD, AND VIDEO CODING PROGRAM
    99.
    发明申请
    VIDEO CODING DEVICE, VIDEO CODING METHOD, AND VIDEO CODING 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：US20150237345A1

    公开(公告)日：2015-08-20

    申请号：US14428505

    申请日：2013-08-16

    Applicant: NEC Corporation

    Inventor： Keiichi Chono

    IPC: H04N19/105 ,  H04N19/136 ,  H04N19/176

    CPC classification number: H04N19/105 ,  H04N19/119 ,  H04N19/136 ,  H04N19/147 ,  H04N19/176 ,  H04N19/96

    Abstract: A video coding device for coding video based on a recursive quadtree structure includes: a coding cost decision unit 11 for deciding a node coding cost of a node image block corresponding to a node to be processed; a child node coding cost decision unit 12 for deciding a child node coding cost of each of child node image blocks corresponding to four child nodes of the node to be processed; a representative child node selection unit 13 for selecting one or more representative child nodes from the four child nodes of the node to be processed; a normalization unit 14 for normalizing the node coding cost based on the number of the selected one or more representative child nodes; and a divide decision unit 15 for comparing the normalized node coding cost with child node coding costs of the representative child nodes, to decide whether or not to divide the node to be processed.

    Abstract translation: 一种用于基于递归四叉树结构编码视频的视频编码装置包括：编码成本确定单元11，用于确定与待处理节点相对应的节点图像块的节点编码成本; 子节点编码成本确定单元12，用于确定与要处理的节点的四个子节点相对应的每个子节点图像块的子节点编码成本; 用于从要处理的节点的四个子节点中选择一个或多个代表性子节点的代表性子节点选择单元13; 归一化单元14，用于基于所选择的一个或多个代表性子节点的数量来归一化节点编码成本; 以及用于将归一化节点编码成本与代表性子节点的子节点编码成本进行比较的分割判定单元15，以决定是否划分要处理的节点。

    VIDEO ENCODING/DECODING DEVICE, METHOD, AND PROGRAM
    100.
    发明申请
    VIDEO ENCODING/DECODING DEVICE, METHOD, AND PROGRAM 审中-公开
    视频编码/解码设备，方法和程序

    公开(公告)号：US20150181240A1

    公开(公告)日：2015-06-25

    申请号：US14409220

    申请日：2013-05-31

    Applicant: NEC Corporation

    Inventor： Hirofumi Aoki ,  Keiichi Chono ,  Masato Tsukada

    IPC: H04N19/68 ,  H04N19/44 ,  H04N19/50

    Abstract: A video encoder 101 encodes image data of an input moving image based on prediction and generates a video bitstream of encoded pictures. A refresh controller 102 refreshes such that a partial area in the picture is assumed as a unit area to be refreshed and the unit area to be refreshed is moved on a picture-by-picture basis. A display-enabled area encoder 103 encodes a display-enabled area for each picture and generating a display-enabled area information bitstream in refreshing. A multiplexer 104 multiplexes the video bitstream and the display-enabled area information bitstream.

    Abstract translation: 视频编码器101基于预测对输入运动图像的图像数据进行编码，并生成编码图像的视频比特流。 刷新控制器102刷新，使得图片中的部分区域被假设为要刷新的单位区域，并且要刷新的单位区域逐个逐个移动。 支持显示的区域编码器103对每个图像的可启用显示区域进行编码，并在刷新时生成支持显示的区域信息比特流。 复用器104多路复用视频比特流和支持显示的区域信息比特流。

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