公开(公告)号：US11875518B2

公开(公告)日：2024-01-16

申请号：US17604809

申请日：2019-04-25

Applicant: NEC Corporation

Inventor： Ryoma Oami

IPC: G06T7/246 ,  G06T7/73 ,  G06T7/00

CPC classification number: G06T7/246 ,  G06T7/0002 ,  G06T7/73 ,  G06T2207/10016 ,  G06T2207/30168 ,  G06T2207/30196

Abstract: According to an example embodiment, an object feature extraction device includes a video acquisition means for acquiring a video and generating the acquired video as an image sequence, an object detection means for detecting an object from the generated image and generating a detection result, an object tracking means for tracking the object based on the generated image and the detection result and generating a tracking result, an image storage means for storing the image, a detection result storage means for storing the detection result, a tracking result storage means for storing the tracking result, an object selection means for calculating, based on the detection result and the tracking result, a quality index for predicting the quality of a feature of the object detected at an extraction time, selecting the object to be subjected to feature extraction, and generating object selection information.

公开(公告)号：US20230421730A1

公开(公告)日：2023-12-28

申请号：US18242768

申请日：2023-09-06

Applicant: NEC Corporation

Inventor： Ryoma Oami

IPC: H04N7/18 ,  G06T7/70 ,  H04N23/695

CPC classification number: H04N7/183 ,  G06T7/70 ,  H04N23/695 ,  G06T2207/10016 ,  G06T2207/30232 ,  G06T2207/30244

Abstract: A position and pose determination unit (103) is configured to determine a position and an pose of the video acquisition unit (110) in such a way that a level of hiding caused by overlapping of objects becomes low based on environmental object information indicating an environmental object including a structural object present in the monitored area and a placed object placed in the structural object, and staying characteristic information indicating a staying characteristic of the object determined depending on the environmental object. The analysis and display unit (111) is configured to perform at least one of analyzing a video captured by the video acquisition unit (103) at the position and the pose determined by the position and pose determination unit (110) and displaying the video.

公开(公告)号：US20230394942A1

公开(公告)日：2023-12-07

申请号：US18235752

申请日：2023-08-18

Applicant: NEC Corporation

Inventor： Ryoma Oami

IPC: G08B13/196 ,  G06T7/70 ,  G06V40/18 ,  G06V20/52 ,  G06V40/16 ,  G06V40/20

CPC classification number: G08B13/19613 ,  G06T7/70 ,  G06V40/197 ,  G06V20/52 ,  G06V40/172 ,  G06V40/25 ,  G06T2207/30201 ,  G06T2207/30232

Abstract: A monitoring device and the like are provided which are capable of detecting an attribute change in a suspicious object that cannot be determined from the behavior of the object. An associating unit associates, among a plurality of objects detected from time-series image data, identical objects with one another. An attribute change detecting unit detects from the time-series image data a change in an attribute of at least one of the identical objects and an attendant item. A suspicious object detecting unit detects a suspicious object on the basis of the change in attribute.

公开(公告)号：US20230362329A1

公开(公告)日：2023-11-09

申请号：US18222143

申请日：2023-07-14

Applicant: NEC CORPORATION

Inventor： Mika SAITO ,  Kenichiro Ida ,  Ryoma Oami ,  Junko Nakagawa ,  Hiroshi Yamada

IPC: H04N7/04 ,  G08B25/00 ,  G08B25/04 ,  G08B13/196 ,  H04N23/63 ,  H04N23/90 ,  G06T7/50 ,  G06T7/70 ,  G06T7/20 ,  H04N7/18

CPC classification number: H04N7/04 ,  G08B25/00 ,  G08B25/04 ,  G08B13/19645 ,  G08B13/19671 ,  G08B13/19684 ,  G08B13/19669 ,  H04N23/63 ,  H04N23/90 ,  G06T7/50 ,  G06T7/70 ,  G06T7/20 ,  G08B13/1966 ,  H04N7/181 ,  G06T2207/30232 ,  G06T2207/30241

Abstract: A video transmission apparatus (10) includes: a specified-position information acquisition unit (110) that acquires specified-position information indicating a specified position in an area to be surveilled including each imaging region corresponding to each of a plurality of imaging apparatuses; and a video transmission control unit (120) that selects at least one imaging apparatus from among the plurality of imaging apparatuses using imaging position information indicating a position or an imaging range of each of the plurality of imaging apparatuses and the specified-position information and transmits a video captured by the selected imaging apparatus to a video sharing apparatus that is to share the video.

公开(公告)号：US20230214010A1

公开(公告)日：2023-07-06

申请号：US18007537

申请日：2020-06-03

Applicant: NEC Corporation

Inventor： Ryoma Oami

IPC: G06F3/01 ,  G06V40/18

CPC classification number: G06F3/013 ,  G06V40/197

Abstract: There is provided an information acquisition apparatus including an output means for outputting guidance information for guiding a subject to move a head while gazing at a predetermined position, and an image acquisition means for acquiring an image including an iris of the subject after outputting the guidance information.

公开(公告)号：US20230083281A1

公开(公告)日：2023-03-16

申请号：US17799976

申请日：2020-02-21

Applicant: NEC Corporation

Inventor： Ryoma Oami

IPC: G06F21/32 ,  H04N5/232

Abstract: A biometric authentication device, by utilizing difference distance information obtained on the basis of in-focus information indicating the degree of focusing in an image of a subject serving as the target of biometric authentication and an estimated distance to the subject obtained from the distance between feature points in the image, generates a corrected distance in which a deviation between the estimated distance and a focal distance to the subject has been corrected on the basis of the difference distance information. The biometric authentication device generates information for controlling a focal point during image acquisition of the subject on the basis of the corrected distance, and generates information for selecting an image to be biometrically authenticated from among images of the subject photographed after controlling the focal point.

公开(公告)号：US11494579B2

公开(公告)日：2022-11-08

申请号：US16073457

申请日：2017-01-23

Applicant: NEC CORPORATION

Inventor： Junko Nakagawa ,  Ryoma Oami ,  Kenichiro Ida ,  Mika Saito ,  Shohzoh Nagahama ,  Akinari Furukawa ,  Yasumasa Ohtsuka ,  Junichi Fukuda ,  Fumi Ikeda ,  Manabu Moriyama ,  Fumie Einaga ,  Tatsunori Yamagami ,  Keisuke Hirayama ,  Yoshitsugu Kumano ,  Hiroki Adachi

IPC: G06K9/00 ,  G06Q50/26 ,  G06F16/22 ,  H04N7/18

Abstract: An information processing apparatus (10) includes a time and space information acquisition unit (110) that acquires high-risk time and space information indicating a spatial region with an increased possibility of an accident occurring or of a crime being committed and a corresponding time slot, a possible surveillance target acquisition unit (120) that identifies a video to be analyzed from among a plurality of videos generated by capturing an image of each of a plurality of places, on the basis of the high-risk time and space information, and analyzes the identified video to acquire information of a possible surveillance target, and a target time and space identification unit (130) that identifies at least one of a spatial region where surveillance is to be conducted which is at least a portion of the spatial region or a time slot when surveillance is to be conducted, from among the spatial region and the time slot indicated by the high-risk time and space information, on the basis of the information of the possible surveillance target.

公开(公告)号：US11483521B2

公开(公告)日：2022-10-25

申请号：US17149084

申请日：2021-01-14

Applicant: NEC Corporation

Inventor： Ryoma Oami

IPC: H04N7/18 ,  G06T7/246 ,  G06T7/292 ,  H04N5/232 ,  G06V20/52 ,  G08B13/196

Abstract: [Problem] To provide an information processing system, an information processing method, and a program capable of suitably tracking a moving object even when there is variation in the speed of the moving object to be tracked.
[Solution] Provided are: a video acquisition unit (201) for accepting input of a video taken by a plurality of photographing devices; a reference object selection unit (207) for selecting, from among moving objects seen in the video taken by a first photographing device among the plurality of photographing devices, another moving object different from the moving object to be tracked and seen in the video taken by the first photographing device; and a target object appearance prediction unit (213) for predicting, based on whether the other moving object appeared in the video taken by a second photographing device among the plurality of photographing devices, a time of day at which the moving object to be tracked will appear.

公开(公告)号：US11164006B2

公开(公告)日：2021-11-02

申请号：US16498493

申请日：2017-03-30

Applicant: NEC CORPORATION

Inventor： Ryoma Oami

IPC: G06K9/00 ,  G08B21/24 ,  H04N7/18

Abstract: An information processing apparatus (2000) detects a stationary object from video data (12). In addition, the information processing apparatus (2000) executes person detection process of detecting a person in vicinity of an object (target object) detected as the stationary object for each of a plurality of video frames (14) which includes the target object. Furthermore, the information processing apparatus (2000) executes a predetermined process by comparing results of the person detection process for each of the plurality of video frames (14).

公开(公告)号：US11019268B2

公开(公告)日：2021-05-25

申请号：US15561572

申请日：2015-03-27

Applicant: NEC Corporation

Inventor： Kenichiro Ida ,  Hiroshi Kitajima ,  Ryoma Oami

IPC: H04N5/232 ,  G06K9/00 ,  H04N5/247 ,  G08B13/196 ,  H04N7/18

Abstract: A video surveillance system includes: a detection unit that detects a predetermined event on the basis of an image captured by a first imaging apparatus; and a control unit that controls a second imaging apparatus such that the second imaging apparatus captures an image of a predetermined position after the detection of the predetermined event.