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公开(公告)号：US09644474B2
公开(公告)日：2017-05-09
申请号：US14680297
申请日：2015-04-07
Inventor： Hyeon Myeong , Byeol Teo Park , Taek Jun Oh , Su Young Choi
CPC classification number: E21B47/09 , E21B47/024 , E21B47/04 , G01C21/12
Abstract: An underground localization method and a system therefor are provided. The underground localization method includes computing location information of a dead reckoning using a gyro sensor and a distance movement sensor of moving equipment, measuring physical information according to the computed location information of the dead reckoning and searching for the physical information which is determined as being matched with the location information of the dead reckoning, and optimizing a location by reflecting location information of the physical information which is determined as being matched with the location information of the dead reckoning.
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公开(公告)号：US10679090B2
公开(公告)日：2020-06-09
申请号：US15979142
申请日：2018-05-14
Inventor： Hyeon Myeong , Su Young Choi , Wancheol Myeong
Abstract: A method for estimating 6-DOF relative displacement using vision-based localization and apparatus therefor are disclosed. A method for estimating 6-DOF relative displacement may include acquiring images of a first marker attached to a fixing member and a second marker attached to a dynamic member for assembling to the fixing member by using a camera, extracting a feature point of the first marker and a feature point of the second marker through image processing for the acquired images, and estimating 6-DOF relative displacement of the dynamic member for the fixing member based on the extracted feature point of the first marker and feature point of the second marker.
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3.发明申请公开(公告)号：US20190180134A1
公开(公告)日：2019-06-13
申请号：US15979142
申请日：2018-05-14
Inventor： Hyeon Myeong , Su Young Choi , Wancheol Myeong
Abstract: A method for estimating 6-DOF relative displacement using vision-based localization and apparatus therefor are disclosed. A method for estimating 6-DOF relative displacement may include acquiring images of a first marker attached to a fixing member and a second marker attached to a dynamic member for assembling to the fixing member by using a camera, extracting a feature point of the first marker and a feature point of the second marker through image processing for the acquired images, and estimating 6-DOF relative displacement of the dynamic member for the fixing member based on the extracted feature point of the first marker and feature point of the second marker.
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