公开(公告)号：US20160345013A1

公开(公告)日：2016-11-24

申请号：US15111085

申请日：2015-01-29

Applicant: NEC CORPORATION

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

IPC: H04N19/167 ,  H04N19/176 ,  H04N19/513 ,  H04N19/40

CPC classification number: H04N19/167 ,  H04N19/176 ,  H04N19/40 ,  H04N19/436 ,  H04N19/513

Abstract: A video encoding device includes: first video encoding means for encoding an input image to generate first coded data; a buffer for storing the input image; coded data transcoding means for transcoding the first coded data generated by the first video encoding means, to generate second coded data; and second video encoding means for generating a prediction signal based on the second coded data supplied from the coded data transcoding means. The first video encoding means includes: dividing means for dividing the input image into a plurality of image areas; and at least one encoding means corresponding to the image areas each of which is made up of a plurality of blocks, and for performing encoding in units of blocks. The encoding means also encodes a block that is included in an image area adjacent with a dividing line in between and is located near the dividing line.

Abstract translation: 视频编码装置包括：第一视频编码装置，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; 编码数据转码装置，用于对由第一视频编码装置生成的第一编码数据进行代码转换，以产生第二编码数据; 以及第二视频编码装置，用于根据从编码数据代码转换装置提供的第二编码数据产生预测信号。 第一视频编码装置包括：分割装置，用于将输入图像分割成多个图像区域; 以及对应于由多个块组成的图像区域的至少一个编码装置，并且用于以块为单位进行编码。 编码装置还对包含在与分割线相邻的图像区域中的块进行编码并位于分割线附近。

公开(公告)号：US20160142732A1

公开(公告)日：2016-05-19

申请号：US14905642

申请日：2014-06-03

Applicant: NEC CORPORATION

Inventor： Keiichi CHONO

IPC: H04N19/593 ,  H04N19/44 ,  H04N19/176 ,  H04N19/136 ,  H04N19/11

CPC classification number: H04N19/593 ,  H04N19/11 ,  H04N19/136 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/44 ,  H04N19/70

Abstract: In a video coding device, an intra prediction unit 11 generates a predicted block, based on an adjacent reconstructed image. A intra first chroma prediction mode coding unit 12 codes an intra prediction mode of a first chroma component based on an intra prediction mode of a luma component. A intra second chroma prediction mode coding unit 13 codes an intra prediction mode of a second chroma component depending on the intra prediction mode of the first chroma component.

Abstract translation: 在视频编码装置中，帧内预测部11基于相邻的重构图像生成预测块。 内部第一色度预测模式编码单元12基于亮度分量的帧内预测模式对第一色度分量的帧内预测模式进行编码。 内部第二色度预测模式编码单元13根据第一色度分量的帧内预测模式对第二色度分量的帧内预测模式进行编码。

公开(公告)号：US20160029025A1

公开(公告)日：2016-01-28

申请号：US14877453

申请日：2015-10-07

Applicant: NEC CORPORATION

Inventor： Kenta SENZAKI ,  Yuzo SENDA ,  Keiichi CHONO ,  Hirofumi AOKI

IPC: H04N19/147 ,  H04N19/44 ,  H04N19/46

CPC classification number: H04N19/147 ,  H04N19/109 ,  H04N19/119 ,  H04N19/157 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/503 ,  H04N19/61 ,  H04N19/65 ,  H04N19/70 ,  H04N19/91

Abstract: A video decoding device for decoding video using inter prediction comprises decoding control unit setting partition type of CU to be decoded to a type other than N×N which indicates a size of PU obtained by dividing a CU to be decoded is a minimum size, when a prediction mode of the CU to be decoded is an inter prediction and a size of the CU to be decoded is equal to a minimum CU size.

Abstract translation: 一种用于使用帧间预测解码视频的视频解码装置包括解码控制单元将要解码的CU的分区类型设置为除了N×N之外的类型，其指示通过将要解码的CU划分为最小大小而获得的PU的大小， 要解码的CU的预测模式是帧间预测，并且要解码的CU的大小等于最小CU大小。

公开(公告)号：US20150319440A1

公开(公告)日：2015-11-05

申请号：US14651466

申请日：2013-12-03

Applicant: NEC CORPORATION

Inventor： Kenta TOKUMITSU ,  Keiichi CHONO

IPC: H04N19/126 ,  H04N19/18 ,  H04N19/91 ,  H04N19/149 ,  H04N19/13 ,  H04N19/65

CPC classification number: H04N19/126 ,  H04N19/124 ,  H04N19/13 ,  H04N19/132 ,  H04N19/147 ,  H04N19/149 ,  H04N19/15 ,  H04N19/18 ,  H04N19/65 ,  H04N19/91

Abstract: A video coding device includes: an orthogonal transform unit 11 which orthogonally transforms an image block to calculate an orthogonal transform coefficient; a quantization unit 12 which quantizes the orthogonal transform coefficient to calculate a coefficient level; and an entropy coding unit 13 which entropy-encodes location information on all significant coefficient levels among the coefficient levels, and then entropy-encodes value information on each of the significant coefficient levels to output a bitstream, wherein the quantization unit 11 includes a number of location information bits calculating unit which calculates the number of bits of location information determined based on the location of a coefficient level to be significant first in order of transmission and included in the image block; a number of value information bits calculating unit which calculates the number of value information bits of a coefficient level to be significant, and a high-cost coefficient level detection/removal unit which sets a coefficient level to be significant in which the number of location information bits and the number of value information bits meet a predetermined condition to 0.

Abstract translation: 视频编码装置包括：正交变换单元11，其对图像块进行正交变换，以计算正交变换系数; 量化单元12，其量化正交变换系数以计算系数水平; 以及熵编码单元13，其对系数级别中的所有有效系数级别的位置信息进行熵编码，然后对每个有效系数级别的值信息进行熵编码，以输出比特流，其中量化单元11包括 位置信息比特计算单元，其计算基于首先按照发送顺序显着地显示的系数级别的位置确定的位置信息的比特数，并包括在图像块中; 多个值信息比特计算单元，其计算要显着的系数级别的值信息比特数;以及高成本系数级检测/去除单元，其将系数级别设置为有效，其中位置信息的数量 位和值信息位的数量满足预定条件为0。

公开(公告)号：US20240350038A1

公开(公告)日：2024-10-24

申请号：US18757651

申请日：2024-06-28

Applicant: NEC Corporation

Inventor： Takashi SHIBATA ,  Shoji YACHIDA ,  Chisato FUNAYAMA ,  Masato TSUKADA ,  Yuka OGINO ,  Keiichi CHONO ,  Emi KITAGAWA ,  Yasuhiko YOSHIDA ,  Yusuke MORI

IPC: A61B5/1171 ,  G06F21/32 ,  G06V10/26

CPC classification number: A61B5/1171 ,  G06F21/32 ,  G06V10/267

Abstract: An authentication device includes an image acquisition unit, an identification unit, and an authentication unit. The image acquisition unit acquires an image of an eye of a subject. The identification unit identifies the colored pattern of a colored contact lens worn by the subject by comparing a reference image with the image of the eye. The authentication unit identifies the subject, using a feature in a region other than a colored region of the colored pattern in the iris region of the eye.

公开(公告)号：US20230368583A1

公开(公告)日：2023-11-16

申请号：US18221319

申请日：2023-07-12

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

CPC classification number: G06V40/70 ,  G06V40/197 ,  G06V20/52 ,  G06V40/171 ,  G06V40/19 ,  G06V40/103 ,  G06V2201/07

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.

公开(公告)号：US20230351809A1

公开(公告)日：2023-11-02

申请号：US18217851

申请日：2023-07-03

Applicant: NEC Corporation

Inventor： Takashi SHIBATA ,  Shoji YACHIDA ,  Chisato FUNAYAMA ,  Masato TSUKADA ,  Yuka OGINO ,  Keiichi CHONO ,  Emi KITAGAWA ,  Yasuhiko YOSHIDA ,  Yusuke MORI

IPC: G06V40/18 ,  G06V40/19 ,  G06V40/20 ,  G06V40/70 ,  G06V40/10 ,  G06V40/16 ,  G06V10/764 ,  G06V10/60 ,  G06V10/22

CPC classification number: G06V40/197 ,  G06V40/19 ,  G06V40/25 ,  G06V40/70 ,  G06V40/103 ,  G06V40/172 ,  G06V10/764 ,  G06V10/60 ,  G06V10/22

Abstract: The disclosure is inputting a first image captured an image of an authentication target; inputting a second image captured an image of a right eye or a left eye of the target; determining whether the second image is of a left eye or a right eye of the target based on information including the first image, and outputting a determination result as left/right information in association with the second image; detecting an overlap between a region including the second image and a predetermined region in the first image; calculating a verification score by comparing characteristic information that are related to the left/right information with iris characteristic information calculated from the second image, and calculating a first weighted verification score obtained by weighting the verification score with a detection result; and authenticating a target in the second image based on the first weighted verification score, and outputting an authentication result.

公开(公告)号：US20230126960A1

公开(公告)日：2023-04-27

申请号：US17912222

申请日：2020-03-30

Applicant: NEC Corporation

Inventor： Yuka OGINO ,  Keiichi CHONO

IPC: G06V40/19 ,  G06V40/18 ,  G06V40/60 ,  H04N23/67 ,  H04N23/69 ,  H04N23/695 ,  G06V10/25 ,  H04N23/611 ,  G06V10/141

Abstract: An imaging system (10) according to the disclosure includes: a first control unit (11) configured to control, in such a way as to fix a focal position in a predetermined position, an iris imaging means for capturing an image focusing on an iris of a target person; an authentication unit (12) configured to authenticate the target person, based on an iris image of the target person being captured by the iris imaging means controlled by the first control unit (11); and a second control unit (13) configured to control the iris imaging means in such a way as to scan a focal position in a predetermined range, in order to re-authenticate the target person when authentication of the target person fails.

公开(公告)号：US20230100016A1

公开(公告)日：2023-03-30

申请号：US17801925

申请日：2020-02-28

Applicant: NEC Corporation

Inventor： Ryo YAMAKABE ,  Yuka OGINO ,  Keiichi CHONO

IPC: H04N23/67 ,  G06V40/18 ,  G02B7/04 ,  G03B13/36

Abstract: The image acquiring device 10 includes the voltage control unit 30 which generates first voltage information that can identify voltage applied to the first variable-focus lens 20A included in the first imaging unit 20 installed in a position where a subject can be photographed and whose focal length changes in accordance with an applied voltage, and generates second voltage information that can identify voltage applied to the second variable-focus lens 21A included in the second imaging unit 21 installed in the position where the subject can be photographed and whose focal length changes in accordance with an applied voltage, and the image judgment unit 40 which inputs images from the first imaging unit 20 and the second imaging unit 21, and selects one image taken at an in-focus position among input images, wherein the voltage control unit 30 generates information, as the first voltage information, that can identify each voltage in a time series of voltages whose values change with time, and generates information, as the second voltage information, that can identify that each of the voltages identified by the first voltage information is applied to the second variable-focus lens 21A after a predetermined period of delay.

公开(公告)号：US20230087275A1

公开(公告)日：2023-03-23

申请号：US17801441

申请日：2020-02-27

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).