Patent application number | Description | Published |
20090076651 | Apparatus and method for calculating position of robot - Provided are an apparatus and method of calculating the position of a robot, which determine the position of a robot and create a map of the surroundings of the robot which account for the travel state of the robot. The apparatus includes a state variable calculation module which calculates a plurality of state variables regarding a travel state of the robot by using a plurality of Kalman filters; a travel state determination module which determines the travel state of the robot based on the results of the calculation performed by the state variable calculation module; and a state variable update module which updates the state variables according to the result of the determination performed by the travel state determination module. | 03-19-2009 |
20090153553 | Method and apparatus for creating 3D face model by using multi-view image information - A method for creating a 3D face model by using multi-view image information, includes: creating a mesh structure for expressing an appearance of a 3D face model by using a first multi-view image obtained by capturing an expressionless face of a performer; and locating joints of a hierarchical structure in the mesh structure, by using a second multi-view image obtained by capturing an expression performance of the performer. Further, the method includes creating a 3D face model that is animated to enable reproduction of a natural expression of the performer, by setting dependency between the joints and the mesh structure. | 06-18-2009 |
20090153554 | Method and system for producing 3D facial animation - A method for producing a 3D facial animation using a single facial video stream, includes producing a representative joint focused on a major expression producing element in a 3D standard facial model, producing a statistical feature-point model of various facial expressions of different people in the 3D standard facial model, moving each feature-point of the statistical feature-point model by tracking a change in facial expressions of the video stream, calculating a transformation coefficient of the representative joint corresponding to a variation of the feature-point of the 3D standard facial model, and producing a 3D facial animation by applying the calculated transformation coefficient to transform the representative joint. | 06-18-2009 |
20090153569 | Method for tracking head motion for 3D facial model animation from video stream - A head motion tracking method for three-dimensional facial model animation, the head motion tracking method includes acquiring initial facial motion to be fit to an image of a three-dimensional model from an image inputted by a video camera; creating a silhouette of the three-dimensional model and projecting the silhouette; matching the silhouette created from the three-dimensional model with a silhouette acquired by a statistical feature point tracking scheme; and obtaining a motion parameter for the image of the three-dimensional model through motion correction using a texture to perform three-dimensional head motion tracking. In accordance with the present invention, natural three-dimensional facial model animation based on a real image acquired with a video camera can be performed automatically, thereby reducing time and cost. | 06-18-2009 |
20090153673 | Method and apparatus for accuracy measuring of 3D graphical model using images - Disclosed is a technology for measuring a degree of accuracy of a 3D graphical model by using images. The technology includes creating camera parameters by calculating a position, a direction, and intrinsic parameters of a camera through a calibration of the camera to a reference image which is photographed for reference during creation of the 3D graphical model of an actually existing object; calculating a position and a direction of the 3D graphical model based on a corresponding relation between the reference image and 3D graphical model data obtained by digitizing the actually existing object; creating a synthesized image by rendering the 3D graphical model using the camera parameters; extracting characteristics of the reference image and the synthesized image; and calculating distance and length errors based on a corresponding relation between the extracted characteristics of the two images. | 06-18-2009 |
20090153745 | MULTI-VIEW CAMERA COLOR CALIBRATION METHOD USING COLOR CHECKER CHART - A multi-view camera color calibration method using a color checker chart, includes measuring a brightness range of photographic data being input from multiple cameras; photographing the color checker chart for each camera and adjusting a brightness value of the chart to be within the brightness range of an input image of each camera; correcting brightness of each camera by using a gray patch of the checker chart; modeling a relationship between a color value of the checker chart obtained by each camera and a standard color value provided by the color checker chart; and correcting differences in color as a result of the modeling, to calibrate colors among the multiple cameras. Therefore, the three-dimensional information of a moving object for photography which cannot be photographed by moving only one camera is capable of being restored. | 06-18-2009 |
20100156901 | METHOD AND APPARATUS FOR RECONSTRUCTING 3D MODEL - A method of reconstructing a 3D model includes reconstructing a 3D voxel-based visual hull model using input images of an object captured by a multi view camera; converting the 3D voxel-based visual hull model into a mesh model; and generating a result of view-dependent rendering of a 3D model by performing the view-dependent texture mapping on the mesh model obtained through the conversion. Further, the reconstructing includes defining a 3D voxel space to be reconstructed; and excluding voxels not belonging to the object from the defined 3D voxel space. | 06-24-2010 |
20100156935 | METHOD AND APPARATUS FOR DEFORMING SHAPE OF THREE DIMENSIONAL HUMAN BODY MODEL - A method of deforming a shape of a human body model includes the steps of reorganizing human body model data into a joint-skeleton structure-based Non-Uniform Rational B-spline (NURBS) surface model, generating statistical deformation information about control parameters of the NURBS surface model based on parameters of joints and key section curves for specific motions, and deforming the shape of the human body model based on the NURBS surface model and the statistical deformation information. The human body model data includes three-dimensional (3D) human body scan data and a 3D polygon mesh. | 06-24-2010 |
20100158354 | METHOD OF CREATING ANIMATABLE DIGITAL CLONE FROM MULTI-VIEW IMAGES - The present invention relates to a method of creating an animatable digital clone includes receiving input multi-view images of an actor captured by at least two cameras and reconstructing a three-dimensional appearance therefrom, accepting shape information selectively based on a probability of photo-consistency in the input multi-view images obtained from the reconstruction and transferring a mesh topology of a reference human body model onto a shape of the actor obtained from the reconstruction. The method further includes generating an initial human body model of the actor via transfer of the mesh topology utilizing sectional shape information of the actor's joints, and generating a genuine human body model of the actor from learning genuine behavioral characteristics of the actor by applying the initial human body model to multi-view posture learning images where performance of a predefined motion by the actor is recorded. | 06-24-2010 |
20110037763 | METHOD AND APPARATUS FOR REAL TIME 3D MESH COMPRESSION, BASED ON QUANITZATION - An apparatus for 3D mesh compression based on quantization, includes a data analyzing unit ( | 02-17-2011 |
20110046923 | APPARATUS AND METHOD FOR LOW-COMPLEXITY THREE-DIMENSIONAL MESH COMPRESSION - An apparatus for compressing low-complexity 3D mesh, includes: a data analyzing unit for decomposing data of an input 3D mesh model into vertices information, property information representing property of the 3D mesh model, and connectivity information between vertices constituting the 3D mesh model; a mesh model quantizing unit for producing quantized vertices, property and connectivity information of the 3D mesh model by using the vertices, property and connectivity information; and a sharable vertex analysis unit for analyzing sharing information between shared vertices of the 3D mesh model. Further, the apparatus includes a data modulation unit for performing a circular DPCM prediction by using quantized values of the consecutive connectivity information of the 3D mesh model; and an entropy encoding unit for outputting coded data of the quantized vertices and property information, and differential pulse-code modulated connectivity information as a bitstream. | 02-24-2011 |
20110123168 | MULTIMEDIA APPLICATION SYSTEM AND METHOD USING METADATA FOR SENSORY DEVICE - A multimedia application system uses metadata for sensory devices. The system includes: a sensory-device engine for generating a sensory device command (SDC) for controlling the sensory devices based on sensory effect information (SEI) generated to represent sensory effects by using the sensory devices depending on video contents, user preference information (UPI) of the sensory devices and device capability information (DCI) indicative of reproducing capability of the sensory devices; and a sensory-device controller for controlling sensory devices to perform sensory effect reproduction in response to the generated SDC. | 05-26-2011 |
20110128286 | IMAGE RESTORATION APPARATUS AND METHOD THEREOF - An image restoration apparatus includes: a control processor unit for separating foreground and background from a loaded input image to transmit each of the separated foreground and background images as a three-dimensional (3D) texture; and a graphic processor unit for generating a visual hull of voxel units corresponding to the transmitted 3D texture, transforming the generated visual hull into mesh units, performing data alignment and pixel transform, determining a screen display value to perform rendering using the determined screen display value. | 06-02-2011 |
20120162385 | APPARATUS AND METHOD FOR ACQUIRING 3D DEPTH INFORMATION - Disclosed herein are an apparatus and method for acquiring 3D depth information. The apparatus includes a pattern projection unit, an image acquisition unit, and an operation unit. The pattern projection unit projects light, radiated by an infrared light source, into a space in a form of a pattern. The image acquisition unit acquires an image corresponding to the pattern using at least one camera. The operation unit extracts a pattern from the image, analyzes results of the extraction, and calculates information about a 3D distance between objects existing in the space. | 06-28-2012 |
20130021245 | INTERACTIVE CONTENT CONTROL METHOD AND USER INTERFACE APPARATUS USING THE SAME - An interactive content control method and a user interface apparatus using the same are provided. The interactive content control method detects a reference length which becomes a reference for controlling interactive content according to a movement of a user, on the basis of skeletal information of the user, detects a comparison length on the basis of the skeletal information, and controls the interactive content according to a result of comparing the reference length and the comparison length. Accordingly, the present invention can provide a highly interactive user interface environment. | 01-24-2013 |
20140204020 | INTERACTIVE CONTENT CONTROL DEVICE BASED ON L-SHAPED DISPLAY AND CONTROL METHOD THEREOF - Provided are an interactive content control device and an interactive content control method capable of increasing immersion in content, which include a front display unit that displays content images, a lower side display unit which is configured to form an L shape with the front display unit, displays content images, and interworks with the front display unit, a sensor unit that senses user movements and provides detected sensing information, and a controller that controls interworking of content displayed on the front display unit and the lower side display unit based on the sensing information. Accordingly, a sense of physical distance from the user may be reduced and the user experiences more immersive content and a variety of interfaces may be utilized in content. | 07-24-2014 |
20140313123 | PROJECTOR FOR PROJECTING PATTERN FOR MOTION RECOGNITION AND MOTION RECOGNITION APPARATUS AND METHOD USING THE SAME - Provided are a projector that projects a pattern for user motion recognition and a motion recognition apparatus and method using the projector. The projector includes a light generation unit, a light guide unit configured to guide light generated from the light generation unit in a predetermined direction, a collimating lens configured to collimate the light transmitted from the light guide unit, and a diffractive optical element (DOE) configured to generate the pattern using the light passing through the collimating lens. | 10-23-2014 |