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公开(公告)号：US20130070847A1
公开(公告)日：2013-03-21
申请号：US13676926
申请日：2012-11-14
申请人： NEC CORPORATION
发明人： Ryoma OAMI , Kota IWAMOTO
IPC分类号： G06K9/46
CPC分类号： H04N19/00 , G06F17/30256 , G06F17/30799 , G06F17/30811 , G06K9/00744 , G06K9/46 , G06T7/254 , G06T2207/10016 , H04N5/14 , H04N21/44008 , H04N21/8352
摘要： A video signature extraction device includes an each-picture feature extraction unit which extracts a feature of each picture, which is a frame or a field, as an each-picture visual feature from an input video; a time axial direction change region extraction unit which analyzes an image change in a time direction with respect to predetermined regions in a picture from the video, obtains a region having a large image change, and generates change region information which is information designating the region; an each-region feature extraction unit which extracts a feature of the region corresponding to the change region information as an each-region visual feature from the video; and a multiplexing unit which multiplexes the each-picture visual feature, the each-region visual feature, and the change region information, and generates a video signature.
摘要翻译： 视频签名提取装置包括每个图像特征提取单元，其从输入视频中提取作为每个图像视觉特征的作为帧或场的每个图像的特征; 时间轴向变化区域提取单元，其从视频分析相对于图像中的预定区域的时间方向上的图像变化，获得具有大图像变化的区域，并且生成作为指定该区域的信息的变化区域信息; 每个区域特征提取单元，从视频中提取与变化区域信息相对应的区域的特征作为每个区域视觉特征; 以及复用单元，其对各图像视觉特征，每个区域视觉特征以及变化区域信息进行复用，并生成视频签名。
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82.发明公开公开(公告)号：US20240161547A1
公开(公告)日：2024-05-16
申请号：US17777122
申请日：2021-09-27
申请人： NEC CORPORATION
发明人： Ryoma OAMI
CPC分类号： G06V40/40 , G06T7/70 , G06V40/197 , G06T2207/30201
摘要： An information processing system (10) comprises: an image acquiring means (110) for acquiring an oblique image in which an eye of a target is captured from an angle different from an angle corresponding to a front of the target; a center detecting means (120) for detecting a center position (23) of a pupil (21) and a center position (24) of an iris (22) from the oblique image; and a determining means (130) for determining whether or not the target is an impersonator on the basis of difference between the center position of the pupil and the center position of the iris. According to this information processing system, it is possible to appropriately detect spoofing using patterned contact lenses.
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83.发明公开公开(公告)号：US20240135552A1
公开(公告)日：2024-04-25
申请号：US18537922
申请日：2023-12-13
申请人： NEC Corporation
发明人： Ryoma OAMI
CPC分类号： G06T7/246 , G06T7/0002 , G06T7/73 , G06T2207/10016 , G06T2207/30168 , G06T2207/30196
摘要： 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.
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公开(公告)号：US20240071086A1
公开(公告)日：2024-02-29
申请号：US18502390
申请日：2023-11-06
申请人： NEC Corporation
发明人： 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
CPC分类号： G06V20/52 , G06V20/41 , G06V20/46 , G06V40/10 , G06V2201/07 , G06V2201/08
摘要： 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.
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公开(公告)号：US20230410517A1
公开(公告)日：2023-12-21
申请号：US18240686
申请日：2023-08-31
申请人： NEC Corporation
发明人： Ryoma OAMI
摘要： 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).
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公开(公告)号：US20230410515A1
公开(公告)日：2023-12-21
申请号：US18239597
申请日：2023-08-29
申请人： NEC Corporation
发明人： Ryoma OAMI , Hiroyoshi MIYANO
CPC分类号： G06V20/52 , G06T7/292 , G06T2207/30241 , G06T2207/30196
摘要： An object tracking apparatus, method and computer-readable medium for detecting an object from output information of sensors, tracking the object on a basis of a plurality of detection results, generating tracking information of the object represented in a common coordinate system, outputting the tracking information, and detecting the object on a basis of the tracking information.
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87.发明公开公开(公告)号：US20230394794A1
公开(公告)日：2023-12-07
申请号：US18234681
申请日：2023-08-16
申请人： NEC Corporation
发明人： Ryoma OAMI
IPC分类号： G06V10/771 , G06T7/246 , G06T7/73 , G06V10/75 , G06V10/44
CPC分类号： G06V10/771 , G06T7/246 , G06T7/73 , G06V10/751 , G06V10/44 , G06T2207/10016
摘要： In order to extract a feature suitable for comparison, the information processing device according to the present invention comprises: a prediction unit which, on the basis of the positional relationship between a plurality of objects detected and tracked in an input video and on the basis of the overlap between the plurality of objects, predicts the qualities of features extracted from the objects; a selection unit which selects, from among the plurality of objects, only those objects or that object for which the qualities of features predicted by the prediction unit satisfy a prescribed condition; and a feature extraction unit which extracts features from the objects or the object selected by the selection unit.
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88.发明公开公开(公告)号：US20230394793A1
公开(公告)日：2023-12-07
申请号：US18234672
申请日：2023-08-16
申请人： NEC Corporation
发明人： Ryoma OAMI
IPC分类号： G06V10/771 , G06T7/246 , G06T7/73 , G06V10/75 , G06V10/44
CPC分类号： G06V10/771 , G06T7/246 , G06T7/73 , G06V10/751 , G06V10/44 , G06T2207/10016
摘要： In order to extract a feature suitable for comparison, the information processing device according to the present invention comprises: a prediction unit which, on the basis of the positional relationship between a plurality of objects detected and tracked in an input video and on the basis of the overlap between the plurality of objects, predicts the qualities of features extracted from the objects; a selection unit which selects, from among the plurality of objects, only those objects or that object for which the qualities of features predicted by the prediction unit satisfy a prescribed condition; and a feature extraction unit which extracts features from the objects or the object selected by the selection unit.
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公开(公告)号：US20230326063A1
公开(公告)日：2023-10-12
申请号：US18208632
申请日：2023-06-12
申请人： NEC CORPORATION
发明人： Ryoma OAMI
IPC分类号： G06T7/62 , G06T7/292 , G06T7/70 , G01B11/02 , G01B11/06 , G06T7/60 , G06V40/10 , G06V40/20 , G06V10/46 , G06V20/52
CPC分类号： G06T7/62 , G06T7/292 , G06T7/70 , G01B11/022 , G01B11/0608 , G06T7/60 , G06V40/10 , G06V40/20 , G06V10/462 , G06V20/52 , G06V40/103 , G06T2207/10016 , G06T2207/30196
摘要： An information processing apparatus (2000) includes a detection unit (2020), a state estimation unit (2040), and a height estimation unit (2080). The detection unit (2020) detects a target person from a video frame. The state estimation unit (2040) estimates a state of the detected target person. The height estimation unit (2080) estimates a height of the person on the basis of a height of the target person in the video frame in a case where the estimated state satisfies a predetermined condition.
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公开(公告)号：US20230300466A1
公开(公告)日：2023-09-21
申请号：US18201989
申请日：2023-05-25
申请人： NEC Corporation
发明人： Kenichiro IDA , Hiroshi KITAJIMA , Ryoma OAMI
IPC分类号： H04N23/69 , G06V20/40 , G06V20/52 , G06V40/16 , H04N23/60 , H04N23/61 , H04N23/63 , H04N23/90 , G08B13/196 , H04N7/18
CPC分类号： H04N23/69 , G06V20/40 , G06V20/52 , G06V40/161 , H04N23/60 , H04N23/61 , H04N23/63 , H04N23/90 , G08B13/19608 , G08B13/19645 , H04N7/181 , G06V20/44
摘要： 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.
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