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公开(公告)号：US20220012502A1
公开(公告)日：2022-01-13
申请号：US17346336
申请日：2021-06-14
Applicant: Hitachi, Ltd.
Inventor： Martin KLINKIGT , Mohit CHHABRA , Junichi KIMURA , Tomokazu MURAKAMI
Abstract: An object of the disclosure is to provide flexible and highly accurate activity detection means. Provided is an activity detection device including: an input unit that inputs an image sequence including a first image and a second image; an object detection unit that detects a first object in the image sequence; a component model unit that generates first characteristic information characterizing the first object and includes at least one individually trainable component model; and an activity detection unit that generates a first object state corresponding to the first object in the first image and a second object state corresponding to the first object in the second image based on the first characteristic information and determines an activity related to the first object based on the first and second object states.
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公开(公告)号：US20210287503A1
公开(公告)日：2021-09-16
申请号：US17143638
申请日：2021-01-07
Applicant: HITACHI, LTD.
Inventor： Toshiaki TARUI , Tomokazu MURAKAMI , Shun FUKUDA , Masato TAMURA , Keiichi HIROKI
IPC: G08B13/196 , G06K9/00
Abstract: An object of the present invention is to provide a video analysis system and a video analysis method in which ownership between a person and baggage can be comprehensively determined. In a system that analyzes videos photographed by plural cameras, a detection/tracking process is performed for first and second objects using videos of plural cameras, and a relationship degree between the first and second objects is determined on the basis of the types of the first and second objects and a distance between the objects to be stored in a database.
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公开(公告)号：US20190354806A1
公开(公告)日：2019-11-21
申请号：US16389532
申请日：2019-04-19
Applicant: Hitachi, Ltd.
Inventor： Mohit CHHABRA , Martin KLINKIGT , Tomokazu MURAKAMI
Abstract: Aspects of the disclosure relate to a method for discovering latent factors from data in a neural network environment. Aspects include adding, by a data noise unit of the neural network environment, noise to a set of input data; computing, by the encoder model and a set of stochastic non-linear units, a set of latent code based on the set of input data; obtaining, by decoding the latent code with a decoder model, a set of reconstructed data.
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Patent Agency Ranking
4.发明申请公开(公告)号：US20200311575A1
公开(公告)日：2020-10-01
申请号：US16754408
申请日：2018-08-09
Applicant: Hitachi, Ltd.
Inventor： Quan KONG , Yuki WATANABE , Naoto AKIRA , Tomokazu MURAKAMI
Abstract: The online recognition apparatus includes a feature amount extraction unit that extracts a feature amount of input data, an identification result prediction unit that predicts an identification result based on the extracted feature amount, a prediction result evaluation unit that determines necessity of labeling from the predicted identification result unit, a correct answer assigning unit that assigns a correct answer to input data online from the determination result, a generator update unit that updates a parameter of a generator based on the input data with the correct answer, a pseudo-learning data generation unit that establishes a generator based on the parameter of the updated generator and generates pseudo-learning data, and an identifier update unit that online updates a parameter of an identifier prepared in advance based on the input data with the correct answer and the pseudo-learning data. The updated identifier is updated as a new identification result prediction unit.
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公开(公告)号：US20190147292A1
公开(公告)日：2019-05-16
申请号：US16171710
申请日：2018-10-26
Applicant: Hitachi, Ltd.
Inventor： Yuki WATANABE , Kenichi MORITA , Tomokazu MURAKAMI , Atsushi HIROIKE , Quan KONG
Abstract: An image retrieving apparatus includes a pose estimating unit which recognizes pose information of a retrieval target including a plurality of feature points from an input image, a features extracting unit which extracts features from the pose information and the input image, an image database which accumulates the features in association with the input image, a query generating unit which generates a retrieval query from pose information specified by a user, and an image retrieving unit which retrieves images including similar poses according to the retrieval query from the image database.
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公开(公告)号：US20210357629A1
公开(公告)日：2021-11-18
申请号：US17318709
申请日：2021-05-12
Applicant: HITACHI, LTD.
Inventor： Quan KONG , Tomoaki YOSHINAGA , Tomokazu MURAKAMI
Abstract: A video processing apparatus that processes a video of a moving body captured by a camera is configured to sample frames output from the camera at a predetermined rate, calculate a direction of motion of the moving body based on a sequence of a plurality of the frames, and extract a feature amount of the video by performing convolution processing together on the plurality of the frames based on the calculated direction.
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公开(公告)号：US20210256823A1
公开(公告)日：2021-08-19
申请号：US17020893
申请日：2020-09-15
Applicant: Hitachi, Ltd.
Inventor： Yoshiki ITO , Kenichi MORITA , Tomokazu MURAKAMI , Junichi KIMURA , Keisuke TERADA
IPC: G08B13/196 , G06T7/73 , G06K9/00
Abstract: An efficient alert process is realized and effectiveness of surveillance is improved when surveilling various incidents that occur within a surveillance area. In a video surveillance system for detecting a plurality of incidents in a surveillance area using a video that captured the surveillance area, provided are a calculation unit which detects an image of a person and/or an object from the video, and calculates an incident feature quantity as a feature quantity representing a status of a detected person and/or a feature quantity of a detected object, and a determination unit which detects an occurrence of the incident based on the incident feature quantity, and determines subjects to be alerted of an occurred incident, which is a detected incident, from a type of the occurred incident and a determination accuracy of the occurred incident.
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8.发明申请公开(公告)号：US20200380168A1
公开(公告)日：2020-12-03
申请号：US16879224
申请日：2020-05-20
Applicant: Hitachi, Ltd.
Inventor： Martin KLINKIGT , Mohit CHHABRA , Atsushi HIROIKE , Tomokazu MURAKAMI
Abstract: In a case of receiving an access request to a target image, an image access management device can provide an appropriate access right holder with an appropriate range of information by determining a browsing level with respect to the target image according to an access authority or purpose included in the access request to the target image, by an access management unit, by generating a final image that corresponds to the access authority by processing the feature vector according to the browsing level, and providing the generated final image as a response to the access request, by an image generation unit.
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