Patents by Inventor Won Pil Yu
Won Pil Yu 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: 9554507Abstract: A mowing boundary area recognizing apparatus of a mowing robot includes a ground state measurer configured to acquire environment data of a ground based on a grass length on the ground, a determiner configured to determine the grass length on the ground on a basis of the ground environment data to recognize a mowing boundary area, and a controller configured to adjust running of the mowing robot to a mowing area for which mowing is needed.Type: GrantFiled: March 20, 2014Date of Patent: January 31, 2017Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jae Hyun Park, Sung Lok Choi, Won Pil Yu
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Patent number: 9310807Abstract: A method of creating an indoor environment map includes acquiring encoded position information by detecting revolutions of wheels when a mobile unit travels using encoders to predict a position of the mobile unit based on the encoded position information, acquiring a measured distance from the mobile unit to an object existing in a surrounding environment using the distance measuring sensor, predicting a position of the mobile unit to be moved, estimating a distance from the mobile unit to the object at the predicted position of the mobile unit, determining whether the estimated distance is matched with the measured distance, correcting the predicted position of the mobile unit to estimate a position of the mobile unit to be moved by the matching of the predicted position with the measured position, and creating the indoor environment map using the corrected position and the measured distance.Type: GrantFiled: January 22, 2010Date of Patent: April 12, 2016Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Yu-Cheol Lee, Sang Ik Na, Won Pil Yu, Kyu Seo Han
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Patent number: 9098088Abstract: The method for building an outdoor map for a moving object according to an exemplary embodiment of the present invention includes: receiving a real satellite image for an outdoor space to which the moving object is to move; calculating pixel information including sizes of length and width pixels and a physical distance of one pixel in the real satellite image; measuring a reference position coordinate for a reference position selected from the real satellite image; and linking a pixel number corresponding to the reference position, the reference position coordinate, and the pixel information to the real satellite image in order to build the outdoor map for the moving object, and further includes creating information on a road network in which the moving object navigates based on the pixel number corresponding to the reference position, the reference position coordinate, and the pixel information.Type: GrantFiled: December 22, 2011Date of Patent: August 4, 2015Assignee: Electronics and Telecommunications Research InstituteInventors: Yu Cheol Lee, Jae Yeong Lee, Won Pil Yu
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Publication number: 20150096276Abstract: Provided is a mowing boundary area recognizing apparatus of a mowing robot. The mowing boundary area recognizing apparatus includes a ground state measurer configured to acquire environment data of a ground based on a grass length on the ground, a determiner configured to determine the grass length on the ground on a basis of the ground environment data to recognize a mowing boundary area, and a controller configured to adjust running of the mowing robot to a mowing area for which mowing is needed.Type: ApplicationFiled: March 20, 2014Publication date: April 9, 2015Applicant: Electronics and Telecommunications Research InstituteInventors: Jae Hyun PARK, Sung Lok CHOI, Won Pil YU
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Patent number: 8935096Abstract: Disclosed are an apparatus and a method for fast path search using learning of a heuristic function according to the present invention. An apparatus for fast path search according to the present invention includes: an input unit to receive destination information from a user, and to receive a search request for a path to the received destination information; a location recognizing unit to obtain current location information of the user when the search request for the path is received; and a control unit to search a map for a path from a start node corresponding to the current location information to a destination node corresponding to the destination information using a heuristic evaluation function.Type: GrantFiled: October 8, 2012Date of Patent: January 13, 2015Assignee: Electronics and Telecommunications Research InstituteInventors: Sung Lok Choi, Hee Sung Chae, Won Pil Yu
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Publication number: 20130253827Abstract: Disclosed are an apparatus and a method for fast path search using learning of a heuristic function according to the present invention. An apparatus for fast path search according to the present invention includes: an input unit to receive destination information from a user, and to receive a search request for a path to the received destination information; a location recognizing unit to obtain current location information of the user when the search request for the path is received; and a control unit to search a map for a path from a start node corresponding to the current location information to a destination node corresponding to the destination information using a heuristic evaluation function.Type: ApplicationFiled: October 8, 2012Publication date: September 26, 2013Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sung Lok Choi, Hee Sung Chae, Won Pil Yu
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Patent number: 8296064Abstract: A path search method of a mobile object in a grid map having a plurality of cells, each having an identical size, is provided. The path search method includes: generating a block map having a plurality of blocks by merging a specific number of cells in the grid map; obtaining a block path by finding a path from a starting position to a destination position in the block map; and obtaining a final path of the mobile object by performing a cell-based path search on cells in the blocks on the block path.Type: GrantFiled: December 17, 2007Date of Patent: October 23, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Jae-Yeong Lee, Won Pil Yu
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Publication number: 20120236287Abstract: The present invention adjusts images received from plural cameras that are oriented to plural directions and combines the images with distance information. Thereafter, the circumstantial environment is visualized based on a moving object using an augmented reality technique to provide to a user. Specifically, the present invention adjusts images in plural directions and adds the distance information to improve the accuracy and uses a visualization method that displays the images with respect to the moving object.Type: ApplicationFiled: January 17, 2012Publication date: September 20, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jae Yeong LEE, Hee Sung CHAE, Seung Hwan PARK, Won Pil YU
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Publication number: 20120162425Abstract: The device for securing visibility for a driver includes an input unit obtaining an image of an area in front of a moving object; a first estimating unit estimating from the image a geometric relationship between the moving object and its surrounding environment to output geometric relationship information; a second estimating unit estimating from the image an optical characteristic of the environment to output optical characteristic information; a first correcting unit adjusting brightness and contrast of the image based on the optical characteristic information and eliminating blob noise resulting from the environment; a second correcting unit compensating for vibration of the image based on the geometric relation information and eliminating motion blur; a synthesizing unit restoring, based on the geometric relationship information, empty space of the image resulting from the blob noise elimination and the vibration compensation and extracting and highlighting principal information of the image to acquire nType: ApplicationFiled: December 19, 2011Publication date: June 28, 2012Applicant: Electronics and Telecommunications Research InstituteInventors: Sung Lok CHOI, Won Pil YU
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Publication number: 20120163662Abstract: The method for building an outdoor map for a moving object according to an exemplary embodiment of the present invention includes: receiving a real satellite image for an outdoor space to which the moving object is to move; calculating pixel information including sizes of length and width pixels and a physical distance of one pixel in the real satellite image; measuring a reference position coordinate for a reference position selected from the real satellite image; and linking a pixel number corresponding to the reference position, the reference position coordinate, and the pixel information to the real satellite image in order to build the outdoor map for the moving object, and further includes creating information on a road network in which the moving object navigates based on the pixel number corresponding to the reference position, the reference position coordinate, and the pixel information.Type: ApplicationFiled: December 22, 2011Publication date: June 28, 2012Applicant: Electronics and Telecommunications Research InstituteInventors: Yu Cheol LEE, Jae Yeong LEE, Won Pil YU
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Publication number: 20120155711Abstract: Disclosed are an apparatus and a method for analyzing a video. The video analyzing apparatus includes a route analyzing unit configured to analyze a subject of a first-person view video and an object represented in the first-person view video based on the first-person view video and generate route information of the subject and the object; and an event analyzing unit configured to classify the first-person view video as a semantic event using the route information.Type: ApplicationFiled: December 16, 2011Publication date: June 21, 2012Applicant: Electronics and Telecommunications Research InstituteInventors: Sahngwon RYOO, Jae Yeong LEE, Sung Lok CHOI, Won Pil YU
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Publication number: 20120141094Abstract: Disclosed are a method and an apparatus for generating training videos and recognizing situations, using composed videos. The method for generating training videos using composed videos according to an exemplary embodiment of the present invention includes generating composed videos based on configuration information of an original video; selecting the composed videos satisfying structural constraints of situations among the generated composed videos; and configuring the training videos including the selected composed videos.Type: ApplicationFiled: December 2, 2011Publication date: June 7, 2012Applicant: Electronics and Telecommunications Research InstituteInventors: Sahngwon RYOO, Won Pil YU
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Patent number: 8027515Abstract: Provided is a system and method for providing location information of robot in real time using an artificial mark. The system includes: an image processing module for obtaining an image signal by photographing artificial marks installed at a predetermined space with a space coordinate and detecting an image coordinate of artificial mark from the obtaining the image signal; a location calculating module for calculating a current location by comparing the image coordinate of detected artificial mark and a pre-stored space coordinate of artificial mark; and an artificial mark identifying module for updating current location information by selectively using one of an artificial mark tracing process and an image coordinate estimating process.Type: GrantFiled: December 14, 2005Date of Patent: September 27, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Jae Yeong Lee, Heesung Chae, Won Pil Yu, Young Jo Cho
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Patent number: 8000537Abstract: Provided are an optical vision chip (OVC) and an image recognition method using the OVC. The OVC includes: a first display displaying an object image; a second display displaying a standard model image; and an optical sensor optically or electrically coupling the object image and the standard model image respectively displayed on the first and second displays and outputting a difference between the object image and the standard model image as an electrical signal.Type: GrantFiled: October 31, 2007Date of Patent: August 16, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Sahnggi Park, Won Pil Yu, Kwang Ryong Oh
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Publication number: 20110010083Abstract: A path search method of a mobile object in a grid map having a plurality of cells, each having an identical size, is provided. The path search method includes: generating a block map having a plurality of blocks by merging a specific number of cells in the grid map; obtaining a block path by finding a path from a starting position to a destination position in the block map; and obtaining a final path of the mobile object by performing a cell-based path search on cells in the blocks on the block path.Type: ApplicationFiled: December 17, 2007Publication date: January 13, 2011Inventors: Jae-Yeong Lee, Won Pil Yu
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Publication number: 20100121488Abstract: A method of creating an indoor environment map includes acquiring encoded position information by detecting revolutions of wheels when a mobile unit travels using encoders to predict a position of the mobile unit based on the encoded position information, acquiring a measured distance from the mobile unit to an object existing in a surrounding environment using the distance measuring sensor, predicting a position of the mobile unit to be moved, estimating a distance from the mobile unit to the object at the predicted position of the mobile unit, determining whether the estimated distance is matched with the measured distance, correcting the predicted position of the mobile unit to estimate a position of the mobile unit to be moved by the matching of the predicted position with the measured position, and creating the indoor environment map using the corrected position and the measured distance.Type: ApplicationFiled: January 22, 2010Publication date: May 13, 2010Inventors: Yu-Cheol LEE, Sang Ik Na, Won Pil Yu, Kyu Seo Han
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Patent number: 7681464Abstract: Provided is an apparatus for detecting the tension, moving direction, and length of a connector. The detecting apparatus includes a connector including one end connected inside the movement detecting apparatus and other end disposed at an outer side of the movement detecting apparatus, a tension detector measuring a tension force applied to the connector by detecting a minute change in a parameter of the tension detector when the other end of the connector is pulled away from the movement detecting apparatus, a direction detector measuring a movement of the connector in horizontal and vertical directions in a plane substantially perpendicular to the tension so as to detect a direction of the tension force applied to the connector, and a length detector detecting a length of the connector extended from the movement detecting apparatus by the tension force applied to the connector.Type: GrantFiled: July 28, 2006Date of Patent: March 23, 2010Assignee: Electronics and Telecommunications Research InstituteInventors: Nakju Doh, Won Pil Yu, Sang Ik Na, Yu-Cheol Lee, Hyo-Sung Ahn
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Publication number: 20100049366Abstract: A method of responding to environmental change to build an environment map of a mobile apparatus and an apparatus thereof are disclosed. The apparatus includes a traveling unit traveling a mobile apparatus according to a command, a distance measuring unit measuring a distance from the mobile apparatus to a moving object, an environment map-generating unit generating an environment map based on a measured distance, a moving object detecting unit detecting the moving object moved after generating the environment map by comparing a distance from the mobile apparatus to the moving object with the newly measured distance, and a controlling unit updating the environment map according to the command by selectively applying changed environment information containing the moving object to the built environment map when the moving object is detected. Thus, the changed environmental information can be rapidly and precisely applied to build the environment map.Type: ApplicationFiled: November 30, 2007Publication date: February 25, 2010Applicant: Electronics and Telecommunications Research InstituteInventors: Yu Cheol Lee, Won Pil Yu, Sang Ik Na, Hyo Sung Ahn
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Patent number: 7634336Abstract: A localization system and method of a mobile robot using a camera and artificial landmarks in a home and a general office environment (or working zone) is provided. The localization system includes artificial landmarks having an LED flash function in an invisible wavelength band, a camera with a wide-angle lens, a module flashing landmarks attached at the ceiling and identifying positions and IDs of the landmarks from an image photographed by the camera having a filter, a module calculating position and orientation of the robot using two landmarks of the image in a stop state, a module, when a ceiling to which the landmarks are attached has different heights, a position of the robot, and a module, when a new landmark is attached in the working zone, calculating a position of the new landmark on an absolute coordinate.Type: GrantFiled: August 23, 2006Date of Patent: December 15, 2009Assignee: Electronics and Telecommunications Research InstituteInventors: Heesung Chae, Won Pil Yu, Jae Young Lee, Young Jo Cho
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Publication number: 20090164044Abstract: A localization service framework for estimating a position of a robot includes a plurality of sensors, a sensor property based localization module connected to the plurality of sensors for converting sensor data sensed by the sensors into position data of the sensors on a basis of the properties of the sensors, respectively, in response to the request of position information of the robot, and a position information combining module for combining the position data of the sensors to obtain position information of the robot, the position information of the robot being provided to the application through the localization service interface.Type: ApplicationFiled: July 11, 2008Publication date: June 25, 2009Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Kyu Seo Han, Won Pil Yu