公开(公告)号：US20250005073A1

公开(公告)日：2025-01-02

申请号：US18780753

申请日：2024-07-23

Applicant: NEC Corporation

Inventor： Noboru YOSHIDA ,  Jianquan Liu

IPC: G06F16/483 ,  G06F16/432 ,  G06V10/44 ,  G06V10/80

Abstract: A query acquisition unit (109) acquires a first query moving image having a plurality of time-series first frame images and at least one second query moving image having a plurality of time-series second frame images. A feature value computing unit (103) computes a feature value of a keypoint detected from an object being included in each of the first frame images and the second frame images. A correspondence relationship determination unit (114) determines a second frame image associated with each of the plurality of first frame images. An integration unit (113) performs, for a plurality of combinations of the first frame image and the second frame image associated with each other, processing of integrating the feature values computed from each of the first frame image and the second frame image, and thereby generates an integrated query in which the integrated feature values are arranged in time series.

公开(公告)号：USD1052609S1

公开(公告)日：2024-11-26

申请号：US29867699

申请日：2022-11-04

Applicant: NEC Corporation

Designer： Hiroaki Takeuchi ,  Ryo Kawai ,  Noboru Yoshida ,  Jianquan Liu ,  Yuta Namiki ,  Naoki Shindou ,  Youhei Sasaki

公开(公告)号：US20240304020A1

公开(公告)日：2024-09-12

申请号：US18273136

申请日：2022-02-16

Applicant: NEC Corporation

Inventor： Satoshi Yoshida ,  Jianquan Liu ,  Shoji Nishimura

IPC: G06V40/10 ,  G06T7/73 ,  G06V10/40 ,  G06V10/74

CPC classification number: G06V40/10 ,  G06T7/74 ,  G06V10/40 ,  G06V10/761 ,  G06T2207/30196

Abstract: To accurately determine an identical person in a plurality of images continuous in time series, an image analysis apparatus 100 includes an image acquisition unit 102 that acquires a plurality of images continuous in time series, a detection unit 103 that detects a person and a pose of the person in each of the plurality of images, and a decision unit 104 that decides identity of persons detected in images different from each other by using the pose of the person detected by the detection unit 103.

公开(公告)号：US12081873B2

公开(公告)日：2024-09-03

申请号：US17617420

申请日：2019-06-13

Applicant: NEC Corporation

Inventor： Jianquan Liu ,  Junnan Li

IPC: H04N23/698 ,  H04N23/611

CPC classification number: H04N23/698 ,  H04N23/611

Abstract: The present invention provides an image processing apparatus (10) including a detection unit (12) that detects a plurality of predetermined points of a body of each of a plurality of persons from an image in an image circle of a fisheye image, a gravity direction determination unit (13) that determines a gravity direction in a position of each of the plurality of persons from the plurality of predetermined points, a reference point decision unit (14) that decides a reference point, based on the gravity direction in the position of each of the plurality of persons, a complementary circular image generation unit (16) that generates a complementary circular image that is a circular image acquired by adding a complementary image to the image in the image circle of the fisheye image, and that has, as a center, the reference point different from a center of the image in the image circle, and an expansion unit (17) that panoramically expands the complementary circular image, based on the reference point, and generates a panoramic image.

公开(公告)号：US12039772B2

公开(公告)日：2024-07-16

申请号：US17600711

申请日：2019-04-05

Applicant: NEC Corporation

Inventor： Jianquan Liu ,  Junnan Li

IPC: G06T7/70 ,  G06V10/774

CPC classification number: G06V10/7747 ,  G06T7/70 ,  G06T2207/20081

Abstract: The present invention provides a processing system (10) including: a sample image generation unit (11) that generates a plurality of sample images being each associated with a partial region of a first image generated using a first lens; an estimation unit (12) that generates an image content estimation result indicating a content for each of the sample images using an estimation model generated by machine learning using a second image generated using a second lens differing from the first lens; a task execution unit (14) that estimates a relative positional relationship of a plurality of the sample images in the first image; a determination unit (15) that determines whether an estimation result of the relative positional relationship is correct; and a correction unit (16) that corrects a value of a parameter of the estimation model when the estimation result of the relative positional relationship is determined to be incorrect.

公开(公告)号：US11830286B2

公开(公告)日：2023-11-28

申请号：US17084870

申请日：2020-10-30

Applicant: NEC CORPORATION

Inventor： Jianquan Liu ,  Shoji Nishimura ,  Takuya Araki ,  Yasufumi Hirakawa

IPC: G06F16/783 ,  G06V40/16 ,  G06F16/00 ,  G06V40/20

CPC classification number: G06V40/167 ,  G06F16/00 ,  G06F16/783 ,  G06V40/172 ,  G06V40/173 ,  G06V40/23

Abstract: A data processing apparatus (1) of the present invention includes a unit that retrieves a predetermined subject from moving image data. The data processing apparatus includes a person extraction unit (10) that analyzes moving image data to be analyzed and extracts a person whose appearance frequency in the moving image data to be analyzed satisfies a predetermined condition among persons detected in the moving image data to be analyzed, and an output unit (20) that outputs information regarding the extracted person.

公开(公告)号：US11683578B2

公开(公告)日：2023-06-20

申请号：US16965340

申请日：2018-10-18

Applicant: NEC CORPORATION

Inventor： Jianquan Liu ,  Maguell Luka Timir Lano Sandifort

IPC: H04N23/611 ,  H04N7/18 ,  G06V40/10 ,  G06V40/20

CPC classification number: H04N23/611 ,  G06V40/10 ,  G06V40/20 ,  H04N7/18

Abstract: Provided is a processing apparatus (10) including a person detection unit (11) that detects a person from an image generated by a camera that photographs a target area, a computation unit (12) that analyzes the image and computes, for each person, a stay time in the target area and a degree of bias of an appearance position in the target area, and a target person extraction unit (13) that extracts a target person who is a person for whom a computation result by the computation unit (12) satisfies a predetermined condition.

公开(公告)号：US20190244341A1

公开(公告)日：2019-08-08

申请号：US16382268

申请日：2019-04-12

Applicant: NEC CORPORATION

Inventor： Jianquan Liu ,  Ka Wai Yung

IPC: G06T7/00 ,  G06T7/187 ,  H04N7/18 ,  G06K9/00 ,  G06T7/11

CPC classification number: G06T7/0002 ,  G06K9/00765 ,  G06Q50/265 ,  G06T7/11 ,  G06T7/187 ,  G06T2207/30242 ,  H04N7/188

Abstract: The analysis apparatus (2000) includes a co-appearance event extraction unit (2020) and a frequent event detection unit (2040). The co-appearance event extraction unit (2020) extracts co-appearance events of two or more persons from each of a plurality of sub video frame sequences. The sub video frame sequence is included in a video frame sequence. The analysis apparatus (2000) may obtain the plurality of sub video frame sequences from one or more of the video frame sequences. The one or more of the video frame sequences may be generated by one or more of surveillance cameras. Each of the sub video frame sequences has a predetermined time length. The frequent event detection unit (2040) detects co-appearance events of the same persons occurring at a frequency higher than or equal to a pre-determined frequency threshold.

公开(公告)号：US10255114B2

公开(公告)日：2019-04-09

申请号：US14900718

申请日：2014-03-06

Applicant: NEC Corporation

Inventor： Masato Asahara ,  Kazuyo Narita ,  Jianquan Liu

IPC: H04L12/24 ,  G06F9/50 ,  G06F11/34 ,  H04L12/26 ,  H04L29/08

Abstract: An abnormality detection apparatus (2000) handles tasks allocated to a plurality of processing servers (3200) as processing targets in a distribution system (3000) having the processing servers (3200). A history acquisition unit (2020) acquires progress history information which is information regarding progress of the plurality of tasks at a plurality of time point of recording. A target range determination unit (2040) determines a target range. A distribution calculation unit (2060) calculates a task speed distribution which is a probability distribution of processing speeds of the tasks using the progress history information regarding the plurality of tasks. An abnormality determination unit (2080) compares a processing speed of a task to be determined with the task speed distribution to thereby determine whether or not the processing speed of the task to be determined is abnormal.

公开(公告)号：US12277165B2

公开(公告)日：2025-04-15

申请号：US18275765

申请日：2021-05-26

Applicant: NEC Corporation

Inventor： Noboru Yoshida ,  Jianquan Liu

IPC: G06F16/483 ,  G06F16/432 ,  G06V10/44 ,  G06V10/80

Abstract: A query acquisition unit (109) acquires a first query moving image having a plurality of time-series first frame images and at least one second query moving image having a plurality of time-series second frame images. A feature value computing unit (103) computes a feature value of a keypoint detected from an object being included in each of the first frame images and the second frame images. A correspondence relationship determination unit (114) determines a second frame image associated with each of the plurality of first frame images. An integration unit (113) performs, for a plurality of combinations of the first frame image and the second frame image associated with each other, processing of integrating the feature values computed from each of the first frame image and the second frame image, and thereby generates an integrated query in which the integrated feature values are arranged in time series.