公开(公告)号：US20220398831A1

公开(公告)日：2022-12-15

申请号：US17678309

申请日：2022-02-23

Applicant: HITACHI, LTD.

Inventor： Soichiro OKAZAKI ,  Quan KONG ,  Tomoaki YOSHINAGA

IPC: G06V10/776 ,  G06V10/764 ,  G06V10/80 ,  G06V10/94 ,  G06V10/774

Abstract: The invention supports creation of models for recognizing attributes in an image with high accuracy. An image recognition support apparatus includes an image input unit configured to acquire an image, a pseudo label generation unit configured to recognize the acquired image based on a plurality of types of image recognition models and output recognition information, and generate pseudo labels indicating attributes of the acquired image based on the output recognition information, and a new label generation unit configured to generate new labels based on the generated pseudo labels.

公开(公告)号：US20230306489A1

公开(公告)日：2023-09-28

申请号：US18039097

申请日：2021-08-18

Applicant: HITACHI, LTD.

Inventor： Quan KONG ,  Tomoaki YOSHINAGA

IPC: G06Q30/0601 ,  G06V20/52 ,  G06V10/62 ,  G06V10/426 ,  G06V10/98 ,  G06V10/44

CPC classification number: G06Q30/0629 ,  G06V20/52 ,  G06V10/62 ,  G06V10/426 ,  G06V10/98 ,  G06V10/44

Abstract: A data analysis apparatus is provided with a graph data generation unit that generates, in chronological order, a plurality of items of graph data configured by combining a plurality of nodes representing attributes for each element and a plurality of edges representing relatedness between the plurality of nodes, a node feature vector extraction unit that extracts a node feature vector for each of the plurality of nodes, an edge feature vector extraction unit that extracts an edge feature vector for each of the plurality of edges, and a spatiotemporal feature vector calculation unit that calculates a spatiotemporal feature vector indicating a change in node feature vector by performing, on the plurality of items of graph data generated by the graph data generation unit, convolution processing for each of a space direction and a time direction on the basis of the node feature vector and the edge feature vector.

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

IPC: G06N5/04 ,  G06N20/20 ,  G06K9/46

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.

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

IPC: G06K9/62 ,  G06T7/70 ,  G06K9/46 ,  G06K9/00 ,  G06F17/30

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.

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

IPC: G06K9/00 ,  G06T7/246

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.