公开(公告)号：US11348370B2

公开(公告)日：2022-05-31

申请号：US17283050

申请日：2018-10-16

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 ,  G06V10/22 ,  G06V10/60 ,  G06V40/19 ,  G06V40/20 ,  G06V40/70 ,  G06V40/10 ,  G06V40/16

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：US20220109881A1

公开(公告)日：2022-04-07

申请号：US17554960

申请日：2021-12-17

Applicant: NEC Corporation

Inventor： Hirofumi Aoki ,  Keiichi Chono ,  Masato Tsukada

IPC: H04N19/68 ,  H04N19/50 ,  H04N19/159 ,  H04N19/196 ,  H04N19/70 ,  H04N19/105 ,  H04N19/107 ,  H04N19/167 ,  H04N19/174 ,  H04N19/44

Abstract: A video decoding device includes a demultiplexing unit which demultiplexes a video bitstream including video data of an encoded slice, first Supplemental-Enhancement-Information having information indicating segments where a refresh has completed in a current picture, and second Supplemental-Enhancement-Information having information indicating a synchronization starting picture and a synchronization completed picture, an extracting unit which extracts the information indicating segments where a refresh has completed in a current picture from a message which is part of the demultiplexed Supplemental-Enhancement-Information; and a video decoding unit which decodes image data from the demultiplexed video bitstream by using at least inter prediction, wherein the synchronization starting picture is a leading picture within a refreshing period, and the synchronization completed picture is the end position of the refreshing period.

公开(公告)号：US20220109880A1

公开(公告)日：2022-04-07

申请号：US17554944

申请日：2021-12-17

Applicant: NEC Corporation

Inventor： Hirofumi AOKI ,  Keiichi Chono ,  Masato Tsukada

IPC: H04N19/68 ,  H04N19/50 ,  H04N19/159 ,  H04N19/196 ,  H04N19/70 ,  H04N19/105 ,  H04N19/107 ,  H04N19/167 ,  H04N19/174 ,  H04N19/44

Abstract: A video decoding device includes a demultiplexing unit which demultiplexes a video bitstream including video data of an encoded slice, Supplemental-Enhancement-Information having first information indicating a refresh group of segments in gradual refresh, and Supplemental-Enhancement-Information having second information indicating segments where a refresh has completed in a current picture, an extracting unit which extracts the second information from a message which is part of the demultiplexed Supplemental-Enhancement-Information, and a video decoding unit which decodes image data from the demultiplexed video bitstream by using at least inter picture prediction.

公开(公告)号：US10171757B2

公开(公告)日：2019-01-01

申请号：US15030196

申请日：2014-10-14

Applicant: NEC Corporation

Inventor： Masato Tsukada

IPC: H04N5/33 ,  H04N9/04 ,  G02B5/20

Abstract: Disclosed is an image capturing device that can easily perform image processing of visible light region and that of near infrared region, while utilizing a general image capturing device structure. The image capturing device comprises: a color filter that divides an incident light into a plurality of color lights; a photo sensor that converts the plurality of color lights as divided by the color filter to data representing image signals; a coded infrared cut filter that is placed before the color filter in the light proceeding direction or between the color filter and the photo sensor and that has infrared cut parts for cutting off near infrared lights and infrared passage parts for allowing near infrared lights to pass therethrough; and an image processing means that acquires a plurality of pieces of color information and a piece of near infrared information for each of a plurality of pixels on the basis of a plurality of image signals related to the lights having passed through the infrared cut parts and an image signal related to the light having passed through the infrared passage part for each of the pixel and adjacent pixels.

公开(公告)号：US09430816B2

公开(公告)日：2016-08-30

申请号：US14397202

申请日：2013-04-25

Applicant: NEC Corporation

Inventor： Kenta Senzaki ,  Masato Tsukada ,  Keiichi Chono

IPC: G06K9/40 ,  H04N5/00 ,  G06T5/00 ,  G06T7/00

CPC classification number: G06T5/002 ,  G06T2207/20016 ,  G06T2207/20024 ,  G06T2207/20182 ,  G06T2207/20192

Abstract: Disclosed is an image processing method including: generating an initial denoised image with a reduced noise while preserving an edge in an input image; controlling an iterative operation performed based on energy defined in advance based on an initial residual component calculated from the input image and the initial denoised image; and separating the initial denoised image to a skeleton component and a residual component by the controlled iterative operation to generate the skeleton component as an output image.

Abstract translation: 公开了一种图像处理方法，包括：在保持输入图像中的边缘的同时，生成具有降低的噪声的初始去噪图像; 基于从所述输入图像和所述初始去噪图像计算的初始残差分量来控制基于预先定义的能量执行的迭代操作; 以及通过所述受控迭代操作将所述初始去噪图像分离为骨架部件和残余部件，以生成所述骨架部件作为输出图像。

公开(公告)号：US20150207959A1

公开(公告)日：2015-07-23

申请号：US14369298

申请日：2012-12-13

Applicant: NEC Corporation

Inventor： Eiji Kaneko ,  Masato Tsukada ,  Gaku Nakano

IPC: H04N1/60 ,  H04N9/67 ,  H04N9/04 ,  H04N17/00 ,  H04N17/02

CPC classification number: H04N1/6086 ,  H04N1/60 ,  H04N1/603 ,  H04N1/6088 ,  H04N9/045 ,  H04N9/67 ,  H04N9/73 ,  H04N17/002 ,  H04N17/02

Abstract: The present invention is a spectral image processing method including the steps of selecting observed spectral information from a multispectral image of a scene, generating a constraint on a spectral distribution of an illumination and a constraint on a surface reflectance of an object using a basis vector of the illumination and a basis vector of the surface reflectance, generating an observation equation that takes as parameters a weight coefficient of the basis vector of the illumination and a weight coefficient of the basis vector of the surface reflectance using the observed spectral information, the constraint on the spectral distribution of the illumination, and the constraint on the surface reflectance of the object, and calculating the spectral distribution of the illumination and the surface reflectance of the object of the scene from the observation equation.

Abstract translation: 本发明是一种光谱图像处理方法，包括以下步骤：从场景的多光谱图像中选择观测到的光谱信息，使用基本矢量生成对照明的光谱分布的约束和对物体的表面反射率的约束 照射和表面反射率的基矢量，生成观测方程，其使用观察到的光谱信息作为照明的基矢量的权重系数和表面反射率的基矢量的权重系数，约束 照明的光谱分布和对象的表面反射率的约束，以及根据观察方程计算场景的对象的照明光谱分布和表面反射率。

公开(公告)号：US20150098656A1

公开(公告)日：2015-04-09

申请号：US14397037

申请日：2013-04-24

Applicant: NEC Corporation

Inventor： Kenta Senzaki ,  Masato Tsukada ,  Hiroaki Kawaguchi

IPC: G06K9/46 ,  G06K9/52 ,  G06T5/00

CPC classification number: G06K9/4604 ,  G06K9/52 ,  G06T5/002 ,  G06T5/20 ,  G06T2207/20016 ,  G06T2207/20182 ,  G06T2207/20192

Abstract: The present invention is a method including: correcting difference between a pixel statistical value of a specific layer and a pixel statistical value of a layer that is wider than the specific layer using an edge information of a layer that is wider than the specific layer; correcting the pixel statistical value of the specific layer using post-correction difference and the pixel statistical value of layer that is wider than the specific layer; recorrecting the post-correction pixel statistical value of the specific layer using difference between a pre-correction pixel statistical value of the specific layer and the post-correction pixel statistical value of the specific layer and the edge information of a layer that is wider than the specific layer; and correcting the target pixel by repeating correction and recorrection until the layer reduces its range from the maximum range to the minimum range.

Abstract translation: 本发明是一种方法，包括：使用比特定层宽的层的边缘信息来校正特定层的像素统计值和比特定层宽的层的像素统计值之间的差; 使用校正后差异和比特定层宽的层的像素统计值来校正特定层的像素统计值; 使用特定层的校正前像素统计值和特定层的校正后像素统计值之间的差以及比该特定层的修正后像素统计值更宽的层的边缘信息之间的差异来重新校正特定层的校正后像素统计值 特定层; 以及通过重复校正和重新校正来校正目标像素，直到该层将其范围从最大范围减小到最小范围。

公开(公告)号：US20250080853A1

公开(公告)日：2025-03-06

申请号：US18722700

申请日：2021-12-28

Applicant: NEC Corporation

Inventor： Ryo Yamakabe ,  Kosuke Yoshimi ,  Yuka Ogino ,  Ryuichi Akashi ,  Masato Tsukada ,  Ryoma Oami

IPC: H04N23/695 ,  H04N23/72

Abstract: An imaging system includes: an information acquisition unit that acquires movement information about a movement of at least a part of a target; a periodicity estimation unit that estimates periodicity about the movement of at least a part of the target, on the basis of the movement information; and an image acquisition unit that controls a camera for imaging the target on the basis of the periodicity and acquires an image of the target. According to such an imaging system, it is possible to properly image a moving target.

公开(公告)号：US12231778B2

公开(公告)日：2025-02-18

申请号：US17431545

申请日：2020-02-12

Applicant: NEC Corporation

Inventor： Keiichi Chono ,  Ryuichi Akashi ,  Yuka Ogino ,  Masato Tsukada

IPC: H04N23/74 ,  G06V10/141 ,  G06V40/19 ,  H04N23/56

Abstract: An illumination device emits light toward a moving subject. A controller controls light emitted from the illumination device so that the amount of light applied to the subject is adjusted to a specific amount or smaller. For example, when the illumination device emits light in a pulsed manner, the controller may control the amount of light applied to the subject by controlling at least one of the pulse width and the pulse intensity of the light. The controller may, for example, control the light emitted from the illumination device according to the distance between the illumination device and the subject.

公开(公告)号：US12148247B2

公开(公告)日：2024-11-19

申请号：US18227851

申请日：2023-07-28

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

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.