Patents by Inventor Jae Il Cho
Jae Il Cho 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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Patent number: 11113988Abstract: Disclosed herein are an apparatus for writing a motion script and an apparatus and method for self-teaching of a motion. The method for self-teaching of a motion, in which the apparatus for writing a motion script and the apparatus for self-teaching of a motion are used, includes creating, by the apparatus for writing a motion script, a motion script based on expert motion of a first user; analyzing, by the apparatus for self-teaching of a motion, a motion of a second user, who learns the expert motion, based on the motion script; and outputting, by the apparatus for self-teaching of a motion, a result of analysis of the motion of the second user.Type: GrantFiled: July 1, 2020Date of Patent: September 7, 2021Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Do-Hyung Kim, Min-Su Jang, Jae-Hong Kim, Young-Woo Yoon, Jae-Il Cho
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Publication number: 20200335007Abstract: Disclosed herein are an apparatus for writing a motion script and an apparatus and method for self-teaching of a motion. The method for self-teaching of a motion, in which the apparatus for writing a motion script and the apparatus for self-teaching of a motion are used, includes creating, by the apparatus for writing a motion script, a motion script based on expert motion of a first user; analyzing, by the apparatus for self-teaching of a motion, a motion of a second user, who learns the expert motion, based on the motion script; and outputting, by the apparatus for self-teaching of a motion, a result of analysis of the motion of the second user.Type: ApplicationFiled: July 1, 2020Publication date: October 22, 2020Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Do-Hyung KIM, Min-Su JANG, Jae-Hong KIM, Young-Woo YOON, Jae-Il CHO
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Patent number: 10748444Abstract: Disclosed herein are an apparatus for writing a motion script and an apparatus and method for self-teaching of a motion. The method for self-teaching of a motion, in which the apparatus for writing a motion script and the apparatus for self-teaching of a motion are used, includes creating, by the apparatus for writing a motion script, a motion script based on expert motion of a first user; analyzing, by the apparatus for self-teaching of a motion, a motion of a second user, who learns the expert motion, based on the motion script; and outputting, by the apparatus for self-teaching of a motion, a result of analysis of the motion of the second user.Type: GrantFiled: March 6, 2017Date of Patent: August 18, 2020Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Do-Hyung Kim, Min-Su Jang, Jae-Hong Kim, Young-Woo Yoon, Jae-Il Cho
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Patent number: 10634655Abstract: Disclosed herein are a method for analyzing heavy metal removal efficiency using phase difference analysis and an apparatus using the method. The method for analyzing heavy metal removal efficiency using phase difference analysis includes applying a magnetic field to a magnetite onto which a heavy metal is adsorbed, based on a first solenoid coil and a second solenoid coil that have an identical winding direction, applying a high-frequency signal to the magnetite, based on a third solenoid coil having a winding direction that differs from that of the first solenoid coil and the second solenoid coil, detecting a high-frequency signal transformed by the magnetite, and calculating a phase difference between a previously detected default high-frequency signal and the transformed high-frequency signal, and analyzing an efficiency of heavy metal removal by the magnetite by measuring a concentration of the heavy metal based on the phase difference.Type: GrantFiled: May 18, 2017Date of Patent: April 28, 2020Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hyo-Bong Hong, Jae-Chan Jeong, Seung-Min Choi, Sung-Woong Shin, Jae-Il Cho, Nam-Shik Park
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Patent number: 10267867Abstract: Disclosed herein are a signal transmission/reception method for signal analysis in FMMD technology and an apparatus using the method. A signal transmission apparatus includes a signal generation unit for generating two sine wave signals having different frequencies in consideration of a voltage of an excitation coil included in a magnetic particle measurement sensor, a signal addition unit for generating an input signal for producing a magnetic field by electronically adding the two sine wave signals, a differential signal generation unit for generating a differential signal for the input signal to minimize transmission noise, and a signal transmission unit for amplifying voltages of the input signal and the differential signal and transmitting the amplified input signal and differential signal to the excitation coil so as to produce a magnetic field in the excitation coil and apply the magnetic field to a measurement target sample.Type: GrantFiled: July 24, 2017Date of Patent: April 23, 2019Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seung-Min Choi, Jae-Chan Jeong, Hyo-Bong Hong, Sung-Woong Shin, Jae-Il Cho
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Patent number: 9967516Abstract: There are provided a stereo matching method capable of increasing a resolution and precision of an object and a device for performing the method. The method includes investigating a pattern according to a predetermined period; obtaining left and right stereo images in which the investigated pattern is included or not included; determining whether each of the stereo image obtained according to the predetermined period and a buffering image that is a previous frame image of the stereo image includes the pattern; and generating a final cost volume by performing different image processing according to whether each of the stereo image and the buffering image includes the pattern. Therefore, it is possible to increase precision of a disparity of a thin object and increase accuracy and precision of an object at a long distance.Type: GrantFiled: July 28, 2015Date of Patent: May 8, 2018Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Ji Ho Chang, Jae Chan Jeong, Ho Chul Shin, Dae Hwan Hwang, Seung Min Choi, Eul Gyoon Lim, Jae Il Cho, Kuk Jin Yoon
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Publication number: 20180100901Abstract: Disclosed herein are a signal transmission/reception method for signal analysis in FMMD technology and an apparatus using the method. A signal transmission apparatus includes a signal generation unit for generating two sine wave signals having different frequencies in consideration of a voltage of an excitation coil included in a magnetic particle measurement sensor, a signal addition unit for generating an input signal for producing a magnetic field by electronically adding the two sine wave signals, a differential signal generation unit for generating a differential signal for the input signal to minimize transmission noise, and a signal transmission unit for amplifying voltages of the input signal and the differential signal and transmitting the amplified input signal and differential signal to the excitation coil so as to produce a magnetic field in the excitation coil and apply the magnetic field to a measurement target sample.Type: ApplicationFiled: July 24, 2017Publication date: April 12, 2018Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seung-Min CHOI, Jae-Chan JEONG, Hyo-Bong HONG, Sung-Woong SHIN, Jae-Il CHO
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Publication number: 20180011070Abstract: Disclosed herein are a method for analyzing heavy metal removal efficiency using phase difference analysis and an apparatus using the method. The method for analyzing heavy metal removal efficiency using phase difference analysis includes applying a magnetic field to a magnetite onto which a heavy metal is adsorbed, based on a first solenoid coil and a second solenoid coil that have an identical winding direction, applying a high-frequency signal to the magnetite, based on a third solenoid coil having a winding direction that differs from that of the first solenoid coil and the second solenoid coil, detecting a high-frequency signal transformed by the magnetite, and calculating a phase difference between a previously detected default high-frequency signal and the transformed high-frequency signal, and analyzing an efficiency of heavy metal removal by the magnetite by measuring a concentration of the heavy metal based on the phase difference.Type: ApplicationFiled: May 18, 2017Publication date: January 11, 2018Inventors: Hyo-Bong HONG, Jae-Chan JEONG, Seung-Min CHOI, Sung-Woong SHIN, Jae-Il CHO, Nam-Shik PARK
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Publication number: 20170358243Abstract: Disclosed herein are an apparatus for writing a motion script and an apparatus and method for self-teaching of a motion. The method for self-teaching of a motion, in which the apparatus for writing a motion script and the apparatus for self-teaching of a motion are used, includes creating, by the apparatus for writing a motion script, a motion script based on expert motion of a first user; analyzing, by the apparatus for self-teaching of a motion, a motion of a second user, who learns the expert motion, based on the motion script; and outputting, by the apparatus for self-teaching of a motion, a result of analysis of the motion of the second user.Type: ApplicationFiled: March 6, 2017Publication date: December 14, 2017Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Do-Hyung KIM, Min-Su JANG, Jae-Hong KIM, Young-Woo YOON, Jae-Il CHO
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Patent number: 9774837Abstract: Disclosed are a system and method for performing distortion correction and calibration using a pattern projected by a projector. The system for performing distortion correction and calibration includes a projector that projects a pattern, at least one camera that generates a photographed pattern image by photographing an image onto which the pattern is projected, and an image processing device that calculates a calibration parameter by comparing an original pattern image projected by the projector and the photographed pattern image. Thus, it is possible to obtain an accurate depth image by easily utilizing an image for the pattern projected by the projector. In addition, when obtaining the depth image, the calibration parameter for correcting image distortion according to camera lens and a calibration state of cameras may be efficiently obtained using the pattern projected by the projector.Type: GrantFiled: April 16, 2015Date of Patent: September 26, 2017Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Ji Ho Chang, Dae Hwan Hwang, Kwang Ho Yang, Eul Gyoon Lim, Jae Il Cho
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Publication number: 20160037121Abstract: There are provided a stereo matching method capable of increasing a resolution and precision of an object and a device for performing the method. The method includes investigating a pattern according to a predetermined period; obtaining left and right stereo images in which the investigated pattern is included or not included; determining whether each of the stereo image obtained according to the predetermined period and a buffering image that is a previous frame image of the stereo image includes the pattern; and generating a final cost volume by performing different image processing according to whether each of the stereo image and the buffering image includes the pattern. Therefore, it is possible to increase precision of a disparity of a thin object and increase accuracy and precision of an object at a long distance.Type: ApplicationFiled: July 28, 2015Publication date: February 4, 2016Inventors: Ji Ho CHANG, Jae Chan JEONG, Ho Chul SHIN, Dae Hwan HWANG, Seung Min CHOI, Eul Gyoon LIM, Jae IL CHO, Kuk Jin YOON
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Publication number: 20150304617Abstract: Disclosed are a system and method for performing distortion correction and calibration using a pattern projected by a projector. The system for performing distortion correction and calibration includes a projector that projects a pattern, at least one camera that generates a photographed pattern image by photographing an image onto which the pattern is projected, and an image processing device that calculates a calibration parameter by comparing an original pattern image projected by the projector and the photographed pattern image. Thus, it is possible to obtain an accurate depth image by easily utilizing an image for the pattern projected by the projector. In addition, when obtaining the depth image, the calibration parameter for correcting image distortion according to camera lens and a calibration state of cameras may be efficiently obtained using the pattern projected by the projector.Type: ApplicationFiled: April 16, 2015Publication date: October 22, 2015Inventors: Ji Ho CHANG, Dae Hwan HWANG, Kwang Ho YANG, Eul Gyoon LIM, Jae IL CHO
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Patent number: 9053540Abstract: An image matching apparatus includes a bilateral filter that filters a left image and a right image to output a second left image and a second right image; a census cost calculation unit performing census transform on a window based on a first pixel of the second left image and a window based on a second pixel of the second right image to calculate a census cost corresponding to a pair of pixels of the first and second pixels; a support weight calculation unit obtaining support weights of the left and right images or the second left and second right images; a cost aggregation unit obtaining energy values of nodes corresponding to the pair of pixels of the first and second pixels using the census cost and the support weights; and a dynamic programming unit performing image matching using dynamic programming by the energy values of each node obtained.Type: GrantFiled: December 15, 2011Date of Patent: June 9, 2015Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Ji Ho Chang, Eul Gyoon Lim, Ho Chul Shin, Jae Il Cho
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Publication number: 20150131853Abstract: A stereo matching system comprising a face detection unit configured to detect a face area using either one of a reference image and a target image provided thereto to extract information about the detected face area and a support window setting unit configured to compare between the information about the detected face area by the face detection unit and a preset value to set the size of support window.Type: ApplicationFiled: June 19, 2014Publication date: May 14, 2015Inventors: Eul Gyoon LIM, Dae Hwan HWANG, Kwang Ho YANG, Jae Il CHO
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Publication number: 20150003736Abstract: An apparatus includes a noise removal block for removing image noise mixed with an input image, a Modified Census Transform (MCT) block for transforming the input image from which the image noise has been removed into a current MCT coefficient, a candidate pattern extraction block for calculating a Sum of Hamming Distance (SHD) value between a current pattern window of the transformed current MCT coefficient and a reference pattern window of a previously registered template image by performing SHD calculation on the two pattern windows and extracting a candidate pattern, and a pattern detection block for scaling down the input image in a predetermined ratio when all pixels of the current scale are processed and detecting a candidate pattern having a minimum SHD value, of stored candidate patterns, as a representative pattern.Type: ApplicationFiled: January 20, 2014Publication date: January 1, 2015Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seung Min CHOI, Jae-Chan JEONG, JAE IL CHO, Dae Hwan HWANG
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Patent number: 8811750Abstract: Disclosed are an apparatus and a method for extracting an edge to be used for extracting a feature point of an object in an image. The present invention proposes an image edge extracting apparatus and method that remove noise in an input image, calculate a gradient of an image in a noise-removed image, measure magnitude of the gradient, extract an edge having a maximum thickness value, and then calculate a threshold using a ratio of the extracted edge, and detect a final edge robust against noise based on the threshold.Type: GrantFiled: September 13, 2012Date of Patent: August 19, 2014Assignees: Electronics and Telecommunications Research Institute, Sejong University Industry Academy Cooperation FoundationInventors: Ji Ho Chang, Dae Hwan Hwang, Jae Il Cho, Dong Il Han, Jong Ho Choi
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Publication number: 20140219549Abstract: An active stereo matching method includes extracting a pattern from a stereo image, generating a depth map through a stereo matching using the extracted pattern, calculating an aggregated cost for a corresponding disparity using a window kernel generated using the extracted pattern and a cost volume generated for the stereo image, and generating a disparity map using the depth map and the aggregated cost.Type: ApplicationFiled: September 9, 2013Publication date: August 7, 2014Applicant: Electronics and Telecommunications Research InstituteInventors: Seung Min CHOI, Dae Hwan HWANG, Eul Gyoon LIM, HoChul SHIN, Jae-Chan JEONG, Jae IL CHO, Kwang Ho YANG, Jiho CHANG
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Patent number: 8755592Abstract: Disclosed is a stereo matching system and method using a dynamic programming scheme. The stereo matching system and method using a dynamic programming scheme according to the present invention may perform viterbi type stereo matching using at least two different penalty of disparity discontinuity (PD) values and synthesize the performed stereo matching results, thereby outputting a disparity map.Type: GrantFiled: December 13, 2011Date of Patent: June 17, 2014Assignee: Electronics and Telecommunications Research InstituteInventors: Eul Gyoon Lim, Ji Ho Chang, Jae Il Cho
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Publication number: 20140132501Abstract: This specification provides a method of projecting patterns using a structured light method and a stereo vision apparatus using the same. The apparatus includes a Laser Diode (LD), an optical splitter configured to receive a light source from the LD and copy a plurality of light sources having identical characteristics with the light source of the LD, and a plurality of diffusers configured to receive the plurality of light sources copied by the optical splitter and optically project patterns.Type: ApplicationFiled: September 3, 2013Publication date: May 15, 2014Applicant: Electronics and Telecommunications Research Instit uteInventors: Seung Min CHOI, Jae Il CHO, Dae Hwan HWANG
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Patent number: 8705814Abstract: Disclosed is a method of detecting an upper body. The method includes detecting an omega candidate area including a shape formed of a face and a shoulder line of a human from a target image, cutting the target image into the upper body candidate area including the omega candidate area, detecting a human face from the upper body candidate area, and judging whether the upper body of the human is included in the target image according to the result of detecting the human face.Type: GrantFiled: December 21, 2011Date of Patent: April 22, 2014Assignee: Electronics and Telecommunications Research InstituteInventors: Woo Han Yun, Do Hyung Kim, Jae Yeon Lee, Kyu Dae Ban, Dae Ha Lee, Mun Sung Han, Ho Sub Yoon, Su Young Chi, Yun Koo Chung, Joo Chan Sohn, Hye Jin Kim, Young Woo Yoon, Jae Hong Kim, Jae Il Cho