Patents by Inventor Byoung-Tae Choi

Byoung-Tae Choi 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).

  • Patent number: 9245369
    Abstract: Disclosed herein are a method and an apparatus for creating an avatar. The method for creating an avatar according to an exemplary embodiment of the present invention includes receiving information on an appearance of an object to be created into an avatar; generating avatar appearance type metadata using the information on the appearance; creating the avatar using the avatar appearance type metadata, wherein the avatar appearance type metadata include at least one of skin information, hair information, nails information, and teeth information. The exemplary embodiments of the present invention can create the avatar capable of facilitating the differentiation with another avatar while more approximating the reality, by adding more detailed data in addition to the data for the existing appearance so as to generate the avatar.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: January 26, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sang hyun Joo, Il kwon Jeong, Byoung tae Choi
  • Patent number: 8761441
    Abstract: Disclosed is a method for automatically extracting centroids and features of a spherical object required to measure a flight speed, a flight direction, a rotation speed, and a rotation axis of the spherical object in a system for measuring flight information of the spherical object with a high-speed stereo camera. In order to automatically extract the centroids and the features of the spherical object, the present invention may automatically extract the centroid and the feature by detecting only the pixel of the foreground image including the spherical object generated by excluding the motionless background image from each camera image, sorting the interconnected pixels among the pixels of the detected foreground image into the independent pixel cluster, and then, using, in the extraction of the centroid and the feature, only one pixel cluster having a size similar to the actual spherical object.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: June 24, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jong Sung Kim, Seong Min Baek, Myung Gyu Kim, Il Kwon Jeong, Byoung Tae Choi
  • Patent number: 8576221
    Abstract: Provided are an apparatus and a method for generating mesh models of feathers. The apparatus for generating the mesh models of the feathers includes a geometrical model analyzing unit that analyzes groups of barbs included in a geometrical curve model of the feather; a calculating unit that calculates the number of grids for each of the groups of barbs by applying curve lengths of the barbs and an average length of the curve lengths included in each of the groups of barbs; and a mesh model generating unit that constructs the geometrical curve models as polygonal mesh models based on the number of grids. According to the present invention, it extracts curved points by using characteristics of a model of a feather and constructs polygonal meshes by using the extracted curved points, thereby making it possible to physically and realistically express the forced physical variation of the polygonal meshes.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: November 5, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Choong-Gyoo Lim, Byoung-Tae Choi
  • Publication number: 20130106867
    Abstract: Disclosed herein are a method and an apparatus for creating an avatar. The method for creating an avatar according to an exemplary embodiment of the present invention includes receiving information on an appearance of an object to be created into an avatar; generating avatar appearance type metadata using the information on the appearance; creating the avatar using the avatar appearance type metadata, wherein the avatar appearance type metadata include at least one of skin information, hair information, nails information, and teeth information. The exemplary embodiments of the present invention can create the avatar capable of facilitating the differentiation with another avatar while more approximating the reality, by adding more detailed data in addition to the data for the existing appearance so as to generate the avatar.
    Type: Application
    Filed: July 5, 2011
    Publication date: May 2, 2013
    Inventors: Sang hyun Joo, Ilkwon Jeong, Byoung tae Choi
  • Publication number: 20130106900
    Abstract: Disclosed herein are a method and an apparatus for creating an avatar. A method for creating an avatar in accordance with an exemplary embodiment of the present invention includes: recognizing an object to be created as the avatar; generating distinguishing feature information by recognizing distinguishing features of the object; generating distinguishing feature metadata including the distinguishing feature information; and creating the avatar using the distinguishing feature metadata. Exemplary embodiments of the present invention can impart a difference to the same avatar by creating the avatar using inherent features, that is, distinguishing features included in each object when the avatar for the same object like a twin is created.
    Type: Application
    Filed: July 5, 2011
    Publication date: May 2, 2013
    Inventors: Sang hyun Joo, Il kwon Jeong, Byoung tae Choi
  • Publication number: 20120270652
    Abstract: Disclosed is a system for servicing game streaming, including: a server for servicing streaming game configured to receive game input data and hardware performance information from a user terminal device and service video streaming or merging streaming coupling the video streaming and graphics streaming according to the received performance of the user terminal device; and a database configured to store a background screen and characters for a game streaming service of the server for servicing streaming game.
    Type: Application
    Filed: April 20, 2012
    Publication date: October 25, 2012
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Sung-Soo KIM, Kyoung Ill Kim, Choong Gyoo Lim, Jong Ho Won, Chang Joon Park, Byoung Tae Choi
  • Patent number: 8208029
    Abstract: A method for calibrating a camera including (a) obtaining a two-dimensional (2D) homography that maps each of parallelograms projected onto two images taken by the camera into a rectangle, wherein the 2D homography is defined as a rectification homography and wherein new cameras that have virtual images are defined as rectified cameras and a new infinite homography is generated between the two rectified cameras, the virtual images being transformed from original images by the rectification homography; (b) obtaining an original infinite homography by using the correlations among the new infinite homography, the rectification homography and the original infinite homography; and (c) obtaining intrinsic camera parameters based on the correlation between the original infinite homography and the intrinsic camera parameters, thereby calibrating the camera.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: June 26, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jae Hean Kim, Jin Ho Kim, Byoung Tae Choi
  • Publication number: 20120150502
    Abstract: Disclosed is a simulation method of a flying trajectory of a ball which flies while rotating. More particularly, An exemplary embodiment of the present invention provides an accurate simulation method of a flying trajectory of a flying ball by reflecting a roughness feature of the surface of the ball in which the flying trajectory of the ball is simulated by calculating drag force, lifting force, and gravity applied to the ball which files while rotating and the drag force and the lifting force are adjusted by a function for calculating air density and a function associated with a change in the force of wind.
    Type: Application
    Filed: November 3, 2011
    Publication date: June 14, 2012
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seong Min BAEK, Myung Gyu KIM, Jong Sung KIM, Il Kwon JEONG, Byoung Tae CHOI
  • Publication number: 20120148099
    Abstract: Disclosed is a method for automatically extracting centroids and features of a spherical object required to measure a flight speed, a flight direction, a rotation speed, and a rotation axis of the spherical object in a system for measuring flight information of the spherical object with a high-speed stereo camera. In order to automatically extract the centroids and the features of the spherical object, the present invention may automatically extract the centroid and the feature by detecting only the pixel of the foreground image including the spherical object generated by excluding the motionless background image from each camera image, sorting the interconnected pixels among the pixels of the detected foreground image into the independent pixel cluster, and then, using, in the extraction of the centroid and the feature, only one pixel cluster having a size similar to the actual spherical object.
    Type: Application
    Filed: December 9, 2011
    Publication date: June 14, 2012
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jong Sung KIM, Seong Min Baek, Myung Gyu Kim, Il Kwon Jeong, Byoung Tae Choi
  • Publication number: 20120129595
    Abstract: Disclosed herein is an apparatus and method for providing an agent-based game service. The apparatus for providing an agent-based game service includes an input data management unit for collecting pieces of input data from a terminal device of at least one user. A data mining unit analyzes patterns of the pieces of input data and then generates and updates mined data according to the result of the pattern analysis. A game agent processing unit creates, using the mined data, a game agent which will replace the user and play a game instead of the user, and evolves the game agent to correspond to the updated mined data.
    Type: Application
    Filed: November 4, 2011
    Publication date: May 24, 2012
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Sung-Soo KIM, Choong-Gyoo Lim, Kyoung-Ill Kim, Jong-Ho Won, Chang-Joon Park, Byoung-Tae Choi
  • Publication number: 20120100912
    Abstract: Disclosed herein are a method of reusing physics simulation results and a game service apparatus using the method. The game service apparatus includes a game service management server, a physics simulation index server, a physics computation cluster, and a rendering server. The game service management server manages physics simulation data corresponding to a game service. The physics simulation index server creates a spatial index structure corresponding to the physics simulation data, and performs spatial indexing for a user area using the spatial index structure. The physics computation cluster performs initial global simulation on the physics simulation data, manages initial global simulation results as reuse data, and performs local simulation on spatial indexing results for the user area. The rendering server merges the reuse data with local simulation results, renders merging results, and provides a game image to a user.
    Type: Application
    Filed: October 25, 2011
    Publication date: April 26, 2012
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Sung-Soo KIM, Kyoung-Ill KIM, Choong-Gyoo LIM, Jong-Ho WON, Chang-Joon PARK, Byoung-Tae CHOI
  • Publication number: 20120089649
    Abstract: Disclosed is a method for managing a virtual world. The method for managing a virtual world includes: receiving virtual world management information including user information and communication information; and managing a virtual world, objects in the virtual world, and relationships between the objects using the virtual world management information.
    Type: Application
    Filed: October 7, 2011
    Publication date: April 12, 2012
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Sang-Hyun Joo, Il-Kwon Jung, Byoung-Tae Choi
  • Publication number: 20120050325
    Abstract: Provided is a terminal for providing a virtual reality linking service. The terminal providing a virtual reality linking service according to an exemplary embodiment of the present invention includes: a user information inputting unit receiving user information; a receiving unit receiving a virtual reality linking service including a sensory effect for each object and a rendering result corresponding to the user information; a real object characteristic information generating unit generating real object characteristic information by extracting a sensitive characteristic stimulating senses of people from a real object which really exists around the user; an object motion information generating unit generating object motion information by recognizing a physical motion of the real object; and a transmitting unit providing the user information, the real object characteristic information, and the object motion information.
    Type: Application
    Filed: August 24, 2011
    Publication date: March 1, 2012
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Sang Hyun JOO, Chang Joon PARK, Byoung Tae CHOI, Gil Haeng LEE, Young Jik LEE
  • Patent number: 7986815
    Abstract: A method of producing a locomotion animation includes calculating movement information of the objects on the basis of surrounding information of the objects and motion capture data for the subjects, and measuring a collision between the objects or between an object and an obstacle on the basis of the movement information to calculate riding motion information for the subjects. The movement information and the riding motion information are then synthesized to determine movement motion and riding animations of the objects. Therefore, the motions of locomotion can be naturally connected with each other.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: July 26, 2011
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung June Chang, Man Kyu Sung, Byoung Tae Choi
  • Publication number: 20110148862
    Abstract: Provided are an apparatus and a method for generating mesh models of feathers. The apparatus for generating the mesh models of the feathers includes a geometrical model analyzing unit that analyzes groups of barbs included in a geometrical curve model of the feather; a calculating unit that calculates the number of grids for each of the groups of barbs by applying curve lengths of the barbs and an average length of the curve lengths included in each of the groups of barbs; and a mesh model generating unit that constructs the geometrical curve models as polygonal mesh models based on the number of grids. According to the present invention, it extracts curved points by using characteristics of a model of a feather and constructs polygonal meshes by using the extracted curved points, thereby making it possible to physically and realistically express the forced physical variation of the polygonal meshes.
    Type: Application
    Filed: December 3, 2010
    Publication date: June 23, 2011
    Applicant: Electronics and Teleciommunications Research Institute
    Inventors: Choong-Gyoo Lim, Byoung-Tae Choi
  • Publication number: 20110148870
    Abstract: Disclosed herein is a method and apparatus for generating graphic tentacle motions. In the method, a 3D tentacle is divided into a 1D center line and a 2D surface based on information about an initial mesh of the 3D tentacle. New locations of sample points of the center line in a new frame are determined from initial locations of sample points of the center line, based on a tentacle root motion. New locations of sample points of the surface in the new frame are determined from initial locations of sample points of the surface, based on both the initial locations of the center line sample points and the tentacle root motion. The surface is coupled to the center line using the locations of the sample points of both the center line and the surface in the new frame.
    Type: Application
    Filed: December 20, 2010
    Publication date: June 23, 2011
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Myung-Gyu KIM, Man-Kyu Sung, Sang-Won Ghyme, Sung-June Chang, Il-Kwon Jeong, Byoung-Tae Choi
  • Publication number: 20110149098
    Abstract: Provided is an image processing apparatus and method that may virtually implement characteristics of an actual lens. The image processing apparatus includes a first image obtaining unit that obtains a raw image through an image capturing apparatus, a foreground/background separation unit that separates a foreground and a background from the raw image obtained by the first image obtaining unit, a lens selecting unit that selects a lens model, a lens characteristic, or a combination thereof the image capturing apparatus, an image processing unit that performs image processing on the foreground and the background by respectively applying a predetermined calibration value for the lens model, the lens characteristic, or the combination thereof, and a second image obtaining unit that synthesizes the image-processed foreground and background to obtain a processed image.
    Type: Application
    Filed: August 16, 2010
    Publication date: June 23, 2011
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Hyun Sang Ahn, Myung Ha Kim, Il Kwon Jeong, Byoung Tae Choi
  • Publication number: 20110153431
    Abstract: Provided is an apparatus for targeted advertising based on images of passersby. A passerby image extraction unit extracts an image of a passerby. A trait information extraction unit extracts trait information regarding the passerby from the extracted image. A targeted advertisement obtainment unit obtains a targeted advertisement to be displayed based on the trait information. A targeted advertisement display unit displays the targeted advertisement.
    Type: Application
    Filed: June 29, 2010
    Publication date: June 23, 2011
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Hye Mi KIM, Jae Hean KIM, Il Kwon JEONG, Jin Ho KIM, Myung Gyu KIM, Sang Won GHYME, Sung June CHANG, Man Kyu SUNG, Brian AHN, Byoung Tae CHOI, Young Jik LEE
  • Publication number: 20110142354
    Abstract: An apparatus for detecting a pose in motion capture data includes: a motion data input unit which receives motion data of characters; a virtual marker attaching unit for forming a point cloud by attaching virtual markers to joints of an end-effector of each character; and a scaling unit for, when a frame has different character size from an a character size of an original frame to be compared is detected, scaling the character size. The apparatus further includes an ICP algorithm execution unit for finding a matching transformation matrix between the original frame and each frame of the motion data, of which character size has been scaled, by applying an ICP algorithm, and determining a frame, in which character's pose has the smallest difference from that in the original frame based on a sum of the distances between the virtual markers chosen by sampling the matched two poses.
    Type: Application
    Filed: May 25, 2010
    Publication date: June 16, 2011
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Man Kyu SUNG, Myunggyu KIM, Sang Won GHYME, Sung June CHANG, Il-Kwon JEONG, Byoung Tae CHOI
  • Publication number: 20110128292
    Abstract: A dynamics-based motion generation apparatus includes: a dynamics model conversion unit for automatically converting character model data into dynamics model data of a character to be subjected to a dynamics simulation; a dynamics model control unit for modifying the dynamics model data and adding or modifying an environment model; a dynamics motion conversion unit for automatically converting reference motion data of the character, which has been created by using the character model data, into dynamics motion data through the dynamics simulation by referring to the dynamics model data and the environment model; and a motion editing unit for editing the reference motion data to decrease a gap between reference motion data and dynamics motion data. The apparatus further includes a robot motion control unit for controlling a robot by inputting preset torque values to related joint motors of the robot by referring to the dynamics motion data.
    Type: Application
    Filed: May 24, 2010
    Publication date: June 2, 2011
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Sang Won GHYME, Myunggyu KIM, Sung June CHANG, Man Kyu SUNG, Il-Kwon JEONG, Byoung Tae CHOI