公开(公告)号：US20250029383A1

公开(公告)日：2025-01-23

申请号：US18777827

申请日：2024-07-19

Applicant: NEC CORPORATION ,  National University of Singapore

Inventor： Karen STEPHEN ,  Satoshi Yamazaki ,  Jianquan LIU ,  Rishabh Sheoran ,  Yong Kang Wong ,  Mohan Kankanhalli

IPC: G06V20/40

Abstract: A relationship extracting apparatus acquires event information that indicates features of an event of interest, determine target duration based on one or more features of the event of interest, and extract one or more action-related relationships that exist during the target duration from object relationships information. The object relationship information indicates two or more action-related relationships between objects in association with time at which or during which the action-related relationship exists.

公开(公告)号：US20240338976A1

公开(公告)日：2024-10-10

申请号：US18293652

申请日：2021-08-16

Applicant: NEC Corporation

Inventor： Jianquan LIU ,  Noboru Yoshida ,  Ryo Kawai ,  Uiko Morimoto ,  Hirtaka Gochou

IPC: G06V40/20 ,  G06V10/75 ,  G06V20/52

CPC classification number: G06V40/20 ,  G06V10/75 ,  G06V20/52

Abstract: An event detection system (10) includes: a calculation unit (16) that calculates a degree of similarity between at least a part of skeletal information extracted from a captured image in which a user who is visiting an ATM is captured and at least a part of registration skeletal information, the registration skeletal information being extracted from a registration image showing a phone call action of a person and being registered in an action database; and a determination unit (17) that determines that an event related to the ATM has been detected when the degree of similarity is equal to or greater than a predetermined threshold. Thus, a problematic event at an ATM can be easily detected while protecting privacy.

公开(公告)号：US20240096182A1

公开(公告)日：2024-03-21

申请号：US18274620

申请日：2021-07-28

Applicant: NEC Corporation

Inventor： Ryo KAWAI ,  Noboru YOSHIDA ,  Jianquan LIU ,  Shunsuke TSUDA ,  Yuki TSURUOKA

IPC: G07G1/00 ,  A47F9/04 ,  G06V20/40

CPC classification number: G07G1/0036 ,  A47F9/047 ,  G06V20/44

Abstract: An action detection system (10) includes an action specification unit (18) configured to start specification of at least one action ID based on at least part of skeleton information extracted from video data that is a captured video of a user in response to detection of the user visiting checkout machine determined in advance, a determination unit (20) configured to determine whether or not an action sequence including the specified at least one action ID corresponds to registration action sequences registered in advance, and a processing control unit (21) configured to execute processing determined in advance in accordance with a determination result.

公开(公告)号：US20240013534A1

公开(公告)日：2024-01-11

申请号：US18215540

申请日：2023-06-28

Applicant: NEC Corporation

Inventor： Jianquan LIU ,  Ryo KAWAI ,  Noboru YOSHIDA ,  Satoshi YAMAZAKI ,  Tingting DONG ,  Karen STEPHEN ,  Yuta NAMIKI ,  Naoki SHINDOU ,  Youhei SASAKI

IPC: G06V20/40 ,  G06V40/10

CPC classification number: G06V20/40 ,  G06V40/10

Abstract: To utilize a result of analyzing an interval between persons included in a video, a video analysis apparatus 100 includes an interval acquisition unit 110 and a display control unit 113. The interval acquisition unit 110 acquires an interval between persons included in a video acquired by photographing a target region. The display control unit 113 causes a display unit to display a time-series transition of first information relating to the number of persons with the acquired interval being equal to or less than a reference value.

公开(公告)号：US20230410361A1

公开(公告)日：2023-12-21

申请号：US18200870

申请日：2023-05-23

Applicant: NEC Corporation

Inventor： Hiroaki TAKEUCHI ,  Ryo KAWAI ,  Noboru YOSHIDA ,  Jianquan LIU ,  Yuta NAMIKI ,  Naoki SHINDOU ,  Youhei SASAKI

IPC: G06T7/73 ,  G06V10/776 ,  G06V10/94 ,  G06V40/10 ,  G06V10/74

CPC classification number: G06T7/74 ,  G06V10/776 ,  G06V10/95 ,  G06V40/10 ,  G06T2200/24 ,  G06V10/945 ,  G06T2207/30196 ,  G06T2207/20092 ,  G06V10/761

Abstract: To achieve faster search processing in the search processing of a similar image, based on a feature value of each of a plurality of keypoints of a human body included in an image, the present invention provides an image processing system 10 including: a target image acquisition unit 11 that acquires a target image; a skeleton structure detection unit 12 that performs processing of detecting a keypoint of a human body included in the target image; a first verification unit 13 that extracts a first reference image whose relationship with the target image satisfies a first extraction condition, from among a plurality of reference images, based on the detected keypoint; and a second verification unit 14 that extracts a second reference image whose relationship with the target image satisfies a second extraction condition, from among the first reference images, based on the detected keypoint.

公开(公告)号：US20230244713A1

公开(公告)日：2023-08-03

申请号：US18012734

申请日：2020-07-01

Applicant: NEC Corporation

Inventor： Ryo KAWAI ,  Noboru YOSHIDA ,  Yadong PAN ,  Shoji NISHIMURA ,  Jianquan LIU

IPC: G06F16/583 ,  G06T7/70 ,  G06V10/44 ,  G06V10/74

CPC classification number: G06F16/5854 ,  G06T7/70 ,  G06V10/44 ,  G06V10/761 ,  G06T2207/20044 ,  G06T2207/20104 ,  G06T2207/30196 ,  G06T2207/30242

Abstract: The present invention provides an image processing apparatus (100) including: an image acquisition unit (101) that acquires an image; a selection unit (109) that selects at least one person included in the image, based on a user input; a skeleton structure detection unit (102) that detects a two-dimensional skeleton structure of a person included in the image; a feature value computation unit (103) that computes a feature value of the detected two-dimensional skeleton structure; and a search unit (105) that searches, from analysis target images, for the analysis target image including a person in a state similar to a state of the selected person, based on a degree of similarity to a feature value of the two-dimensional skeleton structure.

公开(公告)号：US20220247924A1

公开(公告)日：2022-08-04

申请号：US17617420

申请日：2019-06-13

Applicant: NEC Corporation

Inventor： Jianquan LIU ,  Junnan LI

IPC: H04N5/232

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：US20220189199A1

公开(公告)日：2022-06-16

申请号：US17436725

申请日：2019-12-02

Applicant: NEC Corporation

Inventor： Jianquan LIU ,  Satoshi YOSHIDA

IPC: G06V40/16 ,  G06V10/74 ,  G06V10/762 ,  G06T7/20

Abstract: The present invention provides a processing apparatus (10) including an inter-face-image-group determination unit (11) that determines whether a similarity score between a first representative face image in a first face image group and a second representative face image in a second face image group satisfies a first condition, an intra-face-image-group determination unit (12) that determines, for each of the first face image group and the second face image group, whether a second condition defining a relationship between the representative face image and another image in the face image group is satisfied, based on a similarity score between the first representative face image and each of other face images in the first face image group and a similarity score between the second representative face image and each of other face images in the second face image group, and a processing unit (13) that associates a same person identifier (ID) with a plurality of face images included in the first face image group and the second face image group when it is determined that the first condition is satisfied and that the first face image group and the second face image group each satisfy the second condition.

公开(公告)号：US20220189151A1

公开(公告)日：2022-06-16

申请号：US17600711

申请日：2019-04-05

Applicant: NEC Corporation

Inventor： Jianquan LIU ,  Junnas LI

IPC: G06V10/774 ,  G06T7/70

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：US20190156509A1

公开(公告)日：2019-05-23

申请号：US16258899

申请日：2019-01-28

Applicant: NEC Corporation

Inventor： Yasufumi HIRAKAWA ,  Jianquan LIU ,  Shoji NISHIMURA ,  Takuya ARAKI

IPC: G06T7/70 ,  H04N7/18 ,  G06K9/00 ,  G08B25/00 ,  H04N5/232 ,  G06T7/20

Abstract: Provided is an analysis apparatus (10) including a person extraction unit (11) that analyzes video data to extract a person, a time calculation unit (12) that calculates a continuous appearance time period for which the extracted person has been continuously present in a predetermined area and a reappearance time interval until the extracted person reappears in the predetermined area for each extracted person, and an inference unit (13) that infers a characteristic of the extracted person on the basis of the continuous appearance time period and the reappearance time interval.