Patents by Inventor Hyun Ki Lee
Hyun Ki Lee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20210000551Abstract: A tracking system and a tracking method using the same are disclosed. The tracking system includes a marker, a camera unit, a first inertial measuring unit, a second inertial measuring unit and a tracking processing unit. The marker is fixed on the measurement object, and the camera unit outputs a marker image by photographing the marker. The first inertial measuring unit is fixed on the camera unit, and measures and outputs first inertia comprising first accelerated velocity and first angular velocity. The second inertial measuring unit is fixed to one of the measurement object and the marker, and measures and outputs second inertia comprising second accelerated velocity and second angular velocity. The tracking processing unit primarily extracts the position and the posture of the measurement object using the marker image, and secondarily extracts the position and the posture of the measurement object using the first and second inertias.Type: ApplicationFiled: September 17, 2020Publication date: January 7, 2021Applicants: KOH YOUNG TECHNOLOGY INC., KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Hyun Ki LEE, Hyun Min OH, Min Young KIM
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Patent number: 10799299Abstract: A tracking system and a tracking method using the same are disclosed. The tracking system includes a marker, a camera unit, a first inertial measuring unit, a second inertial measuring unit and a tracking processing unit. The marker is fixed on the measurement object, and the camera unit outputs a marker image by photographing the marker. The first inertial measuring unit is fixed on the camera unit, and measures and outputs first inertia comprising first accelerated velocity and first angular velocity. The second inertial measuring unit is fixed to one of the measurement object and the marker, and measures and outputs second inertia comprising second accelerated velocity and second angular velocity. The tracking processing unit primarily extracts the position and the posture of the measurement object using the marker image, and secondarily extracts the position and the posture of the measurement object using the first and second inertias.Type: GrantFiled: August 11, 2015Date of Patent: October 13, 2020Assignees: KOH YOUNG TECHNOLOGY INC., KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Hyun Ki Lee, Hyun Min Oh, Min Young Kim
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Publication number: 20200072980Abstract: A micro robot that is moveable in a body includes first quantum dots.Type: ApplicationFiled: August 30, 2019Publication date: March 5, 2020Applicant: Daegu Gyeongbuk Institute of Science and TechnologyInventors: Hyun Ki Lee, Jin Young KIM, Sung Jun LIM, Hong Soo CHOI
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Patent number: 10388024Abstract: An optical tracking system comprises a marker part, an image forming part, and a processing part. The marker part includes a pattern having particular information and a first lens which is spaced apart from the pattern and has a first focal length. The image forming part includes a second lens having a second focal length and an image forming unit which is spaced apart from the second lens and forms an image of the pattern by the first lens and the second lens. The processing part determines the posture of the marker part from a coordinate conversion formula between a coordinate on the pattern surface of the pattern and a pixel coordinate on the image of the pattern, and tracks the marker part by using the determined posture of the marker part. Therefore, the present invention can accurately track a marker part by a simpler and easier method.Type: GrantFiled: November 2, 2018Date of Patent: August 20, 2019Assignees: KOH YOUNG TECHNOLOGY INC., KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Hyun Ki Lee, You Seong Chae, Min Young Kim
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Publication number: 20190239963Abstract: An optical tracking system and a method using the same capable of detecting an exact spatial position and a direction of a target regardless of the distance from the target to be calculated is disclosed. The optical tracking system and a method using the same according to an embodiment of the present invention has an effect of expanding an available area by detecting an exact spatial position and a direction of a target regardless of the distance from the target to be calculated, as well as, a system downsizing is also achieved by significantly reducing size of the marker unit compared with conventional system.Type: ApplicationFiled: April 19, 2019Publication date: August 8, 2019Applicants: KOH YOUNG TECHNOLOGY INC., KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATIONInventors: Jong-Kyu HONG, Hyun-Ki LEE, Min-Young KIM, You-Seong CHAE
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Publication number: 20190197140Abstract: A structured query language (SQL) tuning automation method and a system therefor, which are capable of extracting SQL attribute information from a network stream transmitted and received between a client and a database and proposing improved measures of an SQL through a statistical analysis. The tuning automation system includes an operating server configured to operate a database and a monitoring server configured to monitor performance by extracting transaction information including SQLs, a response time, and a processing result from a network stream transmitted between a client and the database of the operating server, find a cause of performance degradation, and propose improvement measures.Type: ApplicationFiled: October 23, 2018Publication date: June 27, 2019Inventors: Hyun ki LEE, Kyung mi LEE
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Patent number: 10307210Abstract: An optical tracking system and a method using the same capable of detecting an exact spatial position and a direction of a target regardless of the distance from the target to be calculated is disclosed. The optical tracking system and a method using the same according to an embodiment of the present invention has an effect of expanding an available area by detecting an exact spatial position and a direction of a target regardless of the distance from the target to be calculated, as well as, a system downsizing is also achieved by significantly reducing size of the marker unit compared with conventional system.Type: GrantFiled: April 29, 2014Date of Patent: June 4, 2019Assignees: KOH YOUNG TECHNOLOGY INC., KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATIONInventors: Jong-Kyu Hong, Hyun-Ki Lee, Min-Young Kim, You-Seong Chae
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Patent number: 10229506Abstract: An optical tracking system comprises a marker part, an image forming part, and a processing part. The marker part includes a pattern having particular information and a first lens which is spaced apart from the pattern and has a first focal length. The image forming part includes a second lens having a second focal length and an image forming unit which is spaced apart from the second lens and forms an image of the pattern by the first lens and the second lens. The processing part determines the posture of the marker part from a coordinate conversion formula between a coordinate on the pattern surface of the pattern and a pixel coordinate on the image of the pattern, and tracks the marker part by using the determined posture of the marker part. Therefore, the present invention can accurately track a marker part by a simpler and easier method.Type: GrantFiled: May 29, 2015Date of Patent: March 12, 2019Assignees: KOH YOUNG TECHNOLOGY INC., KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Hyun Ki Lee, You Seong Chae, Min Young Kim
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Publication number: 20190073777Abstract: An optical tracking system comprises a marker part, an image forming part, and a processing part. The marker part includes a pattern having particular information and a first lens which is spaced apart from the pattern and has a first focal length. The image forming part includes a second lens having a second focal length and an image forming unit which is spaced apart from the second lens and forms an image of the pattern by the first lens and the second lens. The processing part determines the posture of the marker part from a coordinate conversion formula between a coordinate on the pattern surface of the pattern and a pixel coordinate on the image of the pattern, and tracks the marker part by using the determined posture of the marker part. Therefore, the present invention can accurately track a marker part by a simpler and easier method.Type: ApplicationFiled: November 2, 2018Publication date: March 7, 2019Applicants: KOH YOUNG TECHNOLOGY INC., KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Hyun Ki LEE, You Seong CHAE, Min Young KIM
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Patent number: 10206580Abstract: The present disclosure provides a full-field OCT system using a wavelength-tunable laser, which can observe peaks of a short-time A-line profile corresponding to each time point at which interference images of an object to be measured are acquired, so as to measure a depth direction movement of the object to be measured, and can correct the phases of interference signals on the basis of the measured depth direction movement, so as to generate an OCT image which is compensated for the depth direction movement.Type: GrantFiled: October 19, 2016Date of Patent: February 19, 2019Assignees: KOH YOUNG TECHNOLOGY INC., INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITYInventors: Hyun Ki Lee, Hong Ki Yoo, Chang Soo Kim, Hyeong Soo Nam
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Publication number: 20180344163Abstract: The present disclosure provides a full-field OCT system using a wavelength-tunable laser, which can observe peaks of a short-time A-line profile corresponding to each time point at which interference images of an object to be measured are acquired, so as to measure a depth direction movement of the object to be measured, and can correct the phases of interference signals on the basis of the measured depth direction movement, so as to generate an OCT image which is compensated for the depth direction movement.Type: ApplicationFiled: October 19, 2016Publication date: December 6, 2018Applicants: KOH YOUNG TECHNOLOGY INC., INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITYInventors: Hyun Ki LEE, Hong Ki YOO, Chang Soo KIM, Hyeong Soo NAM
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Patent number: 10108833Abstract: The present disclosure provides a marker with a pattern formed thereon, which includes an optical system. At least a part of the pattern that uniquely appears depending on a direction in which the pattern is viewed from an outside of the marker through the optical system, is visually identified from the outside of the marker. The pattern includes a plurality of rows of binary-coded sequences. The binary-coded sequence of each of the plurality of rows includes aperiodic sequences that are repeatedly arranged. The aperiodic sequences included in the binary-coded sequence of one row of the plurality of rows are different from the aperiodic sequences included in the binary-coded sequence of another row of the plurality of rows, and each of the aperiodic sequences includes a plurality of sub-sequences that are arranged in a predetermined order.Type: GrantFiled: December 21, 2016Date of Patent: October 23, 2018Assignee: KOH YOUNG TECHNOLOGY INC.Inventors: Jong Kyu Hong, Hyun Ki Lee
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Patent number: 10109066Abstract: An optical tracking system includes a marker part, an image forming part, and a processing part. The marker part includes a pattern having particular information and a first lens. First and second image forming parts include second and third lenses and first and second image forming units. The processing part determines the posture of the marker part from a first coordinate conversion formula between a coordinate on the pattern surface of a pattern and first pixel coordinate on a first image of the pattern, and a second coordinate conversion formula between a coordinate on the pattern surface of the pattern and second pixel coordinate on a second image of the pattern, the second coordinate conversion formula including the rotation conversion between the first pixel coordinate and the second pixel coordinate and tracks the marker part by using the posture of the marker part.Type: GrantFiled: May 29, 2015Date of Patent: October 23, 2018Assignees: KOH YOUNG TECHNOLOGY INC., KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Hyun Ki Lee, You Seong Chae, Min Young Kim
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Publication number: 20180046835Abstract: The present disclosure provides a marker with a pattern formed thereon, which includes an optical system. At least a part of the pattern that uniquely appears depending on a direction in which the pattern is viewed from an outside of the marker through the optical system, is visually identified from the outside of the marker. The pattern includes a plurality of rows of binary-coded sequences. The binary-coded sequence of each of the plurality of rows includes aperiodic sequences that are repeatedly arranged. The aperiodic sequences included in the binary-coded sequence of one row of the plurality of rows are different from the aperiodic sequences included in the binary-coded sequence of another row of the plurality of rows, and each of the aperiodic sequences includes a plurality of sub-sequences that are arranged in a predetermined order.Type: ApplicationFiled: December 21, 2016Publication date: February 15, 2018Applicant: KOH YOUNG TECHNOLOGY INC.Inventors: Jong Kyu HONG, Hyun Ki LEE
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Publication number: 20170273595Abstract: An optical tracking system may comprise a reference marker unit stationarily disposed relative to a patient, a shape measurement unit configured to measure the three-dimensional shape of a specified part of the patient corresponding to a three-dimensional image, a tracking sensor unit configured to sense the reference marker unit and the shape measurement unit, and a processing unit. The processing unit may acquire a coordinate transformation relationship between the reference marker unit and the tracking sensor unit and a coordinate transformation relationship between the shape measurement unit and the tracking sensor unit based on a sensing result of the tracking sensor unit, acquire a coordinate transformation relationship between the specified part of the patient and the shape measurement unit based on a measurement result of the shape measurement unit, and define a coordinate system of the patient relative to the reference marker unit from the acquired coordinate transformation relationships.Type: ApplicationFiled: September 18, 2015Publication date: September 28, 2017Applicant: KOH YOUNG TECHNOLOGY INC.Inventor: Hyun Ki LEE
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Patent number: 9773312Abstract: A method of registering a camera of a surgical navigation system for an augmented reality which realizes an augmented reality with lowered error range is disclosed. The method of registering the camera of the surgical navigation system for the augmented reality enables single person to do the work by calculating and adjusting the coordinate of the optical center of the camera by moving the optical tracker, the camera, or the pattern board with a second marker attached on the pattern board, not manually attached on the pattern board. And, there is an effect of improving accuracy and safety of a surgery by realizing an augmented reality without generating an accumulated error by the second marker, since the spatial coordinate of the second marker attached on the pattern board maintains uniform.Type: GrantFiled: May 27, 2013Date of Patent: September 26, 2017Assignee: KOH YOUNG TECHNOLOGY INC.Inventor: Hyun-Ki Lee
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Publication number: 20170224425Abstract: A tracking system and a tracking method using the same are disclosed. The tracking system includes a marker, a camera unit, a first inertial measuring unit, a second inertial measuring unit and a tracking processing unit. The marker is fixed on the measurement object, and the camera unit outputs a marker image by photographing the marker. The first inertial measuring unit is fixed on the camera unit, and measures and outputs first inertia comprising first accelerated velocity and first angular velocity. The second inertial measuring unit is fixed to one of the measurement object and the marker, and measures and outputs second inertia comprising second accelerated velocity and second angular velocity. The tracking processing unit primarily extracts the position and the posture of the measurement object using the marker image, and secondarily extracts the position and the posture of the measurement object using the first and second inertias.Type: ApplicationFiled: August 11, 2015Publication date: August 10, 2017Applicants: KOH YOUNG TECHNOLOGY INC., KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Hyun Ki LEE, Hyun Min OH, Min Young KIM
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Patent number: 9717480Abstract: In order to verify a surgical operation image matching, a model of a target is manufactured. Then, a reference body is attached to the model. Then, three-dimensional reference data regarding to the model is obtained. Then, grid patterned light is emitted onto the model to obtain reflection image. Then, three-dimensional shape is measured from the reflection image, and measurement image is obtained from the three-dimensional shape. Then, the measurement image and previously obtained three-dimensional reference data are matched. Then, reference position of the target in the three-dimensional reference data is compared with estimated position of the target, which is estimated by the reference body in the measurement image. Therefore, the matching of the surgical operation can be verified.Type: GrantFiled: April 22, 2013Date of Patent: August 1, 2017Assignees: KOH YOUNG TECHNOLOGY INC., KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Hyun-Ki Lee, Min-Young Kim, Jae-Heon Chung
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Publication number: 20170200278Abstract: An optical tracking system includes a marker part, an image forming part, and a processing part. The marker part includes a pattern having particular information and a first lens. First and second image forming parts include second and third lenses and first and second image forming units. The processing part determines the posture of the marker part from a first coordinate conversion formula between a coordinate on the pattern surface of a pattern and first pixel coordinate on a first image of the pattern, and a second coordinate conversion formula between a coordinate on the pattern surface of the pattern and second pixel coordinate on a second image of the pattern, the second coordinate conversion formula including the rotation conversion between the first pixel coordinate and the second pixel coordinate and tracks the marker part by using the posture of the marker part.Type: ApplicationFiled: May 29, 2015Publication date: July 13, 2017Applicants: KOH YOUNG TECHNOLOGY INC., KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Hyun Ki LEE, You Seong CHAE, Min Young KIM
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Publication number: 20170193670Abstract: An optical tracking system comprises a marker part, an image forming part, and a processing part. The marker part includes a pattern having particular information and a first lens which is spaced apart from the pattern and has a first focal length. The image forming part includes a second lens having a second focal length and an image forming unit which is spaced apart from the second lens and forms an image of the pattern by the first lens and the second lens. The processing part determines the posture of the marker part from a coordinate conversion formula between a coordinate on the pattern surface of the pattern and a pixel coordinate on the image of the pattern, and tracks the marker part by using the determined posture of the marker part. Therefore, the present invention can accurately track a marker part by a simpler and easier method.Type: ApplicationFiled: May 29, 2015Publication date: July 6, 2017Applicants: KOH YOUNG TECHNOLOGY INC., KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Hyun Ki LEE, You Seong CHAE, Min Young KIM