公开(公告)号：US20150181213A1

公开(公告)日：2015-06-25

申请号：US14409581

申请日：2013-05-31

Applicant: NEC Corporation

Inventor： Keiichi Chono ,  Hirofumi Aoki

IPC: H04N19/13 ,  H04N19/60 ,  H04N19/176 ,  H04N19/70 ,  H04N19/159

CPC classification number: H04N19/13 ,  H04N19/12 ,  H04N19/159 ,  H04N19/176 ,  H04N19/60 ,  H04N19/70

Abstract: A video encoding device includes a transformer for transforming an image block, an entropy encoder (103) for entropy encoding transformed data of the image block transformed by the transformer, a PCM encoder (1070) for PCM encoding the image block, and a multiplexed data selector (109) for selecting output data of any one of the entropy encoder (103) and the PCM encoder (1070) for each image block. The PCM encoder (1070) embeds, at the beginning of PCM data, a subsequent_pcm_flag syntax indicating whether an image block of PCM data follows or not.

Abstract translation: 视频编码装置包括用于变换图像块的变换器，用于对由变压器变换的图像块的变换数据进行熵编码的熵编码器（103），用于对该图像块进行PCM编码的PCM编码器（1070）和多路复用数据 选择器（109），用于为每个图像块选择熵编码器（103）和PCM编码器（1070）中的任何一个的输出数据。 PCM编码器（1070）在PCM数据的开始处嵌入指示PCM数据的图像块是否跟随的随后的pcm_flag语法。

公开(公告)号：US20140307790A1

公开(公告)日：2014-10-16

申请号：US14355697

申请日：2012-10-25

Applicant: NEC Corporation

Inventor： Keiichi Chono ,  Hirofumi Aoki

IPC: H04N19/50

CPC classification number: H04N19/132 ,  H04N19/105 ,  H04N19/16 ,  H04N19/182 ,  H04N19/186 ,  H04N19/59 ,  H04N19/61 ,  H04N19/70

Abstract: A video encoding device includes a down-sampler with sampling position shifter 107 configured to down-sample a luminance signal, and a predictor 101 configured to linearly predict a color difference signal from a down-sampled luminance signal. The down-sampler with sampling position shifter 107 shifts a sampling position of the down-sampled luminance signal in accordance with a scan to be processed. A video decoding device includes a down-sampler with sampling position shifter 205 configured to down-sample a luminance signal, and a predictor 203 configured to linearly predict a color difference signal from a down-sampled luminance signal. The down-sampler with sampling position shifter 205 shifts a sampling position in the down-sampled luminance signal in accordance with a scan to be processed.

Abstract translation: 视频编码装置包括具有采样位置移位器107的下采样器，其被配置为对亮度信号进行下采样，以及预测器101，被配置为从下采样的亮度信号线性地预测色差信号。 具有采样位置移位器107的下采样器根据要处理的扫描来移位下采样亮度信号的采样位置。 视频解码装置包括具有被配置为对亮度信号进行下采样的采样位置移位器205的下采样器，以及配置为从下采样亮度信号线性预测色差信号的预测器203。 具有采样位置移位器205的下采样器根据要处理的扫描来移位下采样亮度信号中的采样位置。

公开(公告)号：US12223775B2

公开(公告)日：2025-02-11

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 ,  G06V20/52 ,  G06V40/10 ,  G06V40/16 ,  G06V40/18 ,  G06V40/19

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：US12217548B2

公开(公告)日：2025-02-04

申请号：US18221309

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 ,  G06V20/52 ,  G06V40/10 ,  G06V40/16 ,  G06V40/18 ,  G06V40/19

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：US12120437B2

公开(公告)日：2024-10-15

申请号：US17439977

申请日：2020-02-20

Applicant: NEC Corporation

Inventor： Keiichi Chono

IPC: H04N23/69 ,  G06T7/11 ,  G06T7/292 ,  G06T7/593 ,  G06T7/70 ,  G06V40/18 ,  G06V40/19 ,  H04N13/25 ,  H04N19/167 ,  H04N19/17 ,  H04N19/597 ,  H04N23/13 ,  H04N23/45 ,  H04N23/63 ,  H04N23/695 ,  H04N23/698 ,  H04N23/90 ,  H04N23/951 ,  H04N25/40 ,  H04N21/218

CPC classification number: H04N23/951 ,  G06T7/11 ,  G06T7/292 ,  G06T7/596 ,  G06T7/70 ,  G06V40/18 ,  G06V40/19 ,  H04N13/25 ,  H04N19/167 ,  H04N19/17 ,  H04N19/597 ,  H04N23/13 ,  H04N23/45 ,  H04N23/635 ,  H04N23/69 ,  H04N23/695 ,  H04N23/698 ,  H04N23/90 ,  H04N25/41 ,  G06T2207/20104 ,  G06T2207/30041 ,  H04N21/21805

Abstract: Provided is an image capture device capable of achieving both high resolution of images and high frame rate. An image capture device 10 takes images and outputs image data, and includes region of interest compression means 11 for performing lossy compression processing on pixel data of a region of interest and outputting the pixel data.

公开(公告)号：US12056955B2

公开(公告)日：2024-08-06

申请号：US18223462

申请日：2023-07-18

Applicant: NEC Corporation

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

IPC: G06V40/19 ,  G06V40/18 ,  G06V40/50

CPC classification number: G06V40/19 ,  G06V40/18 ,  G06V40/50

Abstract: An information providing device according to one aspect of the present disclosure includes: at least one memory storing a set of instructions; and at least one processor configured to execute the set of instructions to: receive a face image; determine whether a person in the face image is unsuitable for iris data acquisition based on the face image; and output information based on determining that the person is unsuitable for the iris data acquisition when the person is determined to be unsuitable for the iris data acquisition.

公开(公告)号：US12014578B2

公开(公告)日：2024-06-18

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 ,  G06V20/52 ,  G06V40/10 ,  G06V40/16 ,  G06V40/18 ,  G06V40/19

CPC classification number: G06V40/70 ,  G06V20/52 ,  G06V40/103 ,  G06V40/171 ,  G06V40/19 ,  G06V40/197 ,  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：US12014573B2

公开(公告)日：2024-06-18

申请号：US17312094

申请日：2018-12-14

Applicant: NEC Corporation

Inventor： Masato Tsukada ,  Chisato Funayama ,  Yuka Ogino ,  Hiroshi Imai ,  Keiichi Chono ,  Emi Kitagawa ,  Yasuhiko Yoshida ,  Hiroshi Yamada ,  Takashi Shibata ,  Shoji Yachida ,  Ryuichi Akashi

IPC: G06V40/18 ,  G06F21/32 ,  G06V10/143 ,  G06V10/56 ,  G06V40/19 ,  G06V40/40

CPC classification number: G06V40/18 ,  G06F21/32 ,  G06V10/143 ,  G06V10/56 ,  G06V40/19 ,  G06V40/193 ,  G06V40/40

Abstract: In order to determine whether a color contact lens is being worn on an iris, this image processing device includes: a first feature amount calculation means for using an image of the iris in a first wavelength band to calculate a first feature amount in the first wavelength band, said iris being used in authentication of a person; a second feature amount calculation means for using an image of the iris in a second wavelength band to calculate a second feature amount in the second wavelength band; and a covering determination means for determining, on the basis of the first feature amount and the second feature amount, whether a color contact lens is present on the iris.

公开(公告)号：US11978282B2

公开(公告)日：2024-05-07

申请号：US17967004

申请日：2022-10-17

Applicant: NEC Corporation

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

IPC: G06V40/18 ,  G06V10/147 ,  G06V10/20 ,  G06V40/19 ,  G06V10/62

CPC classification number: G06V40/19 ,  G06V10/147 ,  G06V10/255 ,  G06V40/197 ,  G06V10/62

Abstract: An authentication system according to one aspect of the present disclosure includes: at least one memory storing a set of instructions; and at least one processor configured to execute the set of instructions to: track an object included in a video captured by a first capture device; detect a candidate for biometric authentication in the object being tracked; determine whether biometric authentication has been performed for the candidate based on a record of biometric authentication performed for the object being tracked; and perform the biometric authentication for the candidate based on a video of an authentication part of the candidate when the biometric authentication has not been performed for the candidate, the video of the authentication part being captured by a second capture device having a capture range including a part of a capture range of the first capture device.

公开(公告)号：US11935328B2

公开(公告)日：2024-03-19

申请号：US17431535

申请日：2020-02-12

Applicant: NEC Corporation

Inventor： Keiichi Chono ,  Takahiro Toizumi ,  Masato Tsukada

IPC: G06V40/19 ,  G06V10/25 ,  G06V40/60 ,  H04N23/90

CPC classification number: G06V40/19 ,  G06V10/25 ,  G06V40/67 ,  H04N23/90

Abstract: Iris image pick-up devices have the same field of view and are disposed at mutually different positions. An overall image pick-up device performs image pick-up over a wide field of view. A guiding device guides a subject. An illumination device illuminates the subject with light. The controller controls, using an image from the overall image pick-up device, at least one of reading out an image from the iris image pick-up devices, presenting at least of an image and a sound through the guiding device, or providing illumination with light from the illumination device.