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Patent Agency Ranking
公开(公告)号：US20220406159A1
公开(公告)日：2022-12-22
申请号：US17640191
申请日：2020-03-19
Applicant: Hitachi, Ltd
Abstract: The purpose of the present invention is to provide a fall risk evaluation system whereby risk of falling of an elderly person or other person to be managed can be easily evaluated on the basis of a captured image of daily life, instead of by a physical therapist, etc. To achieve this purpose, the present invention is a fall risk evaluation system comprising a stereo camera and a fall risk evaluation device, the fall risk evaluation device being provided with: a person authentication unit for authenticating a person to be managed who has been imaged by the stereo camera; a person tracking unit for tracking the person to be managed who is authenticated by the person authentication unit; an action extraction unit for extracting walking by the person to be managed; a feature value calculation unit for calculating a feature value of the walking extracted by the action extraction unit; an integration unit for generating integrated data obtained by integrating the outputs of the person authentication unit, the person tracking unit, the action extraction unit, and the feature value calculation unit; a fall index calculation unit for calculating a fall index value of the person to be managed, on the basis of a plurality of integrated data generated by the integration unit; and a fall risk evaluation unit for comparing the fall index value calculated by the fall index calculation unit and a threshold value to evaluate the risk of falling of the person to be managed.
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公开(公告)号：US20190385324A1
公开(公告)日：2019-12-19
申请号：US16479282
申请日：2017-02-01
Applicant: HITACHI, LTD.
Inventor： Hideyuki KUME , Yuan LI , Masaya ITOH , Masanori MIYOSHI
Abstract: In a three-dimensional measurement apparatus, a plurality of cameras and an arithmetic device are connected via a network, and includes: a plurality of photographing units; an image acquisition unit; a local time acquisition unit; a moving object detection unit to detect a moving object from the image; an image holding unit to hold an image in which the moving object is detected, in association with the local time at which the image has been photographed; an image selection unit; a three-dimensional position/synchronization deviation estimation unit to estimate a three-dimensional position of the moving object and a synchronization deviation between cameras, from an image selected by the image selection unit and a local time associated with the image; a synchronization deviation holding unit to hold the synchronization deviation; and an output unit to output an estimation result of the three-dimensional position/synchronization deviation estimation unit.
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公开(公告)号：US20130321624A1
公开(公告)日：2013-12-05
申请号：US13904064
申请日：2013-05-29
Applicant: HITACHI, LTD.
Inventor： Yuan LI , Masanori MIYOSHI , Masaya ITOH , Ryo YUMIBA , Shunichi KANEKO , Hironobu FUJIYOSHI
IPC: G06K9/00
CPC classification number: G06K9/00771 , G06K9/00369
Abstract: An object detecting device includes an image acquiring unit which acquires an image from a camera, a scanning interval calculating unit which calculates a scanning interval when a scanning window is scanned on the image based on a size on the image of a detection object that is detected by the detecting window, a scanning unit which scans on the image using the scanning interval that is calculated by the scanning interval calculating unit, and a detecting unit which determines whether the detection object is present within the scanned detecting window.
Abstract translation: 对象检测装置包括从摄像机获取图像的图像获取单元，扫描间隔计算单元，其基于检测到的检测对象的图像上的尺寸来计算扫描窗口在图像上扫描的扫描间隔 通过检测窗口，扫描单元，其使用由扫描间隔计算单元计算的扫描间隔扫描图像;以及检测单元，其确定检测对象是否存在于扫描检测窗口内。
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公开(公告)号：US20210020295A1
公开(公告)日：2021-01-21
申请号：US16981608
申请日：2018-03-30
Applicant: HITACHI, LTD.
Inventor： Yuan LI , Shinya YUDA , Hideaki SUZUKI
Abstract: Provided are: an acquisition unit that acquires physical state information indicating physical states of the people from one or more sensors that detect at least the people; a physical function analysis unit that analyzes a change in physical functions of the people based on a time-series change of the physical state information acquired by the acquisition unit; and a physical function improvement proposing unit that generates and outputs physical function improvement proposal information indicating an improvement proposal of the physical function with respect to the change in the physical functions of the people based on an analysis result of the physical function analysis unit.
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公开(公告)号：US20190037205A1
公开(公告)日：2019-01-31
申请号：US16072707
申请日：2017-01-05
Applicant: Hitachi, Ltd.
Inventor： Masaya ITOH , Yuan LI
IPC: H04N13/246 , H04N5/232 , G02B7/02
Abstract: Provided is an imaging system such as a stereo camera which includes a mechanism capable of controlling a camera setting such as zooming or panning/tilting, wherein the stereo camera and the imaging system maintains measurement accuracy of the imaging system even when the camera setting is changed. The stereo camera including at least two cameras estimates camera parameters of the camera when a lens position of the camera is changed by an operation instruction of the camera. In addition, the imaging system includes at least two cameras, a camera control unit which controls at least a lens position of the camera, a calibration unit which estimates camera parameters of the camera when at least the lens position of the camera is moved by the camera control unit, and an image recognition unit which performs three-dimensional restoration of captured images of the cameras based on the camera parameters.
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