Abstract: A method of converting a two-dimensional video to a three-dimensional video, the method comprising: comparing an image of an nth frame with an accumulated image until an n?1th frame in the two-dimensional video to calculate a difference in a color value for each pixel; generating a difference image including information on a change in a color value for each pixel of the nth frame; storing an accumulated image until the nth frame by accumulating the information on the change in the color value for each pixel until the nth frame; performing an operation for a pixel in which a change in a color value is equal to or larger than a predetermined level by using the difference image to generate a division image and a depth map image; and converting the image of the nth frame to a three-dimensional image by using the depth map image.

Abstract: Disclosed are an apparatus and a method for extracting a foreground layer from an image sequence that extract a foreground object layer area in which a depth value is discontinuous with that of a background from an input image sequence. By using the present disclosure, the layer area is automatically tracked in the subsequent frames through user's setting in the start frame in the image sequence in which the depth values of the foreground and the background are discontinuous, thereby extracting the foreground layer area in which the drift phenomenon and the flickering phenomenon are reduced.

Abstract: An apparatus for correcting a stereoscopic image using matching information, includes: a matching information visualizer receiving input of original stereoscopic images and intuitive matching information and visualizing a pair of stereoscopic images based on the intuitive matching information; a correction information processor obtaining a statistical camera parameter based on the intuitive matching information and correcting the received stereoscopic image using the statistical camera parameter; and an error allowable controller providing allowable error information to the correction information processor in consideration of an error allowable degree according to a selected time from the received intuitive matching information and preset human factor guide information, to extract a correlation between stereoscopic images using a stereoscopic image and provided information, thereby helping such that an erroneously photographed image is correctly photographed or correcting the image such that the erroneously p

Abstract: An apparatus and method of producing stereoscopic subtitles by analyzing a three-dimensional (3D) space is disclosed, the apparatus including a camera position calculator to calculate a position of a first camera and a position of a second camera from a first image and a second image, respectively, a subtitle flat arranger to arrange a subtitle flat using a viewing direction of the first camera and a viewing direction of the second camera at the calculated positions, and a subtitle producer to produce subtitles using the subtitle flat.

Abstract: Provided is a system and method for providing a stereoscopic image by adjusting a depth value, the system including a depth value estimator to estimate a depth value of an object included in a first stereoscopic image from the stereoscopic image, a depth value adjusting unit to adjust the depth value in consideration of a display device, a stereoscopic image processing unit to process the first stereoscopic image to be a second stereoscopic image based on the adjusted depth value, and a stereoscopic image provider to provide the second stereoscopic image to the display device.

Abstract: A camera tracking apparatus including a sequence image input unit configured to obtain one or more image frames by decoding an input two-dimensional image, a two-dimensional feature point tracking unit configured to obtain a feature point track by extracting feature points from respective image frames obtained by the sequence image input unit, and comparing the extracted feature points with feature points extracted from a previous image frame, to connect feature points determined to be similar, and a three-dimensional reconstruction unit configured to reconstruct the feature point track obtained by the two-dimensional feature point tracking unit.

Abstract: An apparatus for creating a three dimensional video including a cut split unit configured to split an input two-dimensional video into two or more cuts based on a predetermined reference, a manual conversion unit configured to receive a depth value of one of frames that form each of the two or more cuts split by the cut split unit and convert the one frame into a three dimensional form, and an automatic conversion unit configured to convert other frames included in the cuts with reference to the one frame, which is converted into the three dimensional form by the manual conversion unit, into a three dimensional form.

Abstract: Disclosed are a system for producing stereoscopic images with a hole filling algorithm, and a method thereof. A system for producing stereoscopic images according to an exemplary embodiment of the present invention includes: a movement area detecting unit examining a movement area for an object moved in an image, detecting/tracking changes of the movement area by dividing a front view and a background of the movement area, and providing result information; a filling error processing unit filling a hole detected by the movement area detecting unit and correcting a filled filling region; and a stereoscopic image visualizing unit visualizing a stereoscopic image corrected by the filling error processing unit.

Abstract: A method of converting a two-dimensional video to a three-dimensional video, the method comprising: comparing an image of an nth frame with an accumulated image until an n?1th frame in the two-dimensional video to calculate a difference in a color value for each pixel; generating a difference image including information on a change in a color value for each pixel of the nth frame; storing an accumulated image until the nth frame by accumulating the information on the change in the color value for each pixel until the nth frame; performing an operation for a pixel in which a change in a color value is equal to or larger than a predetermined level by using the difference image to generate a division image and a depth map image; and converting the image of the nth frame to a three-dimensional image by using the depth map image.

Abstract: An apparatus for correcting a stereoscopic image using matching information, includes: a matching information visualizer receiving input of original stereoscopic images and intuitive matching information and visualizing a pair of stereoscopic images based on the intuitive matching information; a correction information processor obtaining a statistical camera parameter based on the intuitive matching information and correcting the received stereoscopic image using the statistical camera parameter; and an error allowable controller providing allowable error information to the correction information processor in consideration of an error allowable degree according to a selected time from the received intuitive matching information and preset human factor guide information, to extract a correlation between stereoscopic images using a stereoscopic image and provided information, thereby helping such that an erroneously photographed image is correctly photographed or correcting the image such that the erroneously p

Abstract: Disclosed are a system for making 3D contents provided with visual fatigue minimization and a method of the same. More particularly, an exemplary embodiment of the present invention provides a system for making 3D contents including: a human factor information unit generating guide information for making 3D contents by considering factors causing visual fatigue of the 3D contents; and a 3D contents making unit applying guide information generated by the human factor information unit to 3D contents data inputted for making the 3D contents to make the 3D contents, and a method of making 3D contents.

Abstract: A virtual reality embodying system uses 2D images and HDRI data taken of a target object through a camera to embody virtual reality. A modeling unit compares the 2D image's coordinate with a real coordinate to calculate a transform matrix, calculates a vanishing point of a reference vector, uses the vanishing point to calculate a camera matrix, uses the camera matrix and the transform matrix to calculate a rotation matrix and a translation matrix, and uses the rotation matrix and the translation matrix to model the 2D image into a virtual model. A rendering unit uses the HDRI data as texture to render the virtual model, and embodies the HDRI into an extended VRML node to apply the virtual model to the VRML environment.

Abstract: A rendering apparatus for real-time global illumination and a method thereof are disclosed. The rendering apparatus includes: a spherical harmonic processor for creating light samples and creating spherical harmonics basis functions; a light model processor for transforming radiance of a HDRI image to spherical harmonics light coefficients using the spherical harmonic basis functions; a radiance transfer processor for previously calculating coefficients of a visibility and a geometric term for a global illumination model using the spherical harmonic basis function; a BRDF processor for generating a database of BRDF data and calculating coefficients of the BRDF data through smoothing; and a render unit for rendering the spherical harmonic light coefficients, the coefficients for the visibility and the geometric term, and the BRDF data coefficient using a rendering equation expressed as a dot product of a vector.

Abstract: A system for image representation of a real object by using photographic images and a method thereof are disclosed. The system includes: a characterization unit of an image sensing device for extracting characteristics of an image sensing device to be used to obtain photographs of a target object; a characterization unit of an object for obtaining photographs of the target object by using the image sensing device and extracting characteristics of the target object by using the obtained photographs; and an image reproduction unit for reproducing photorealistic images by reinterpreting the extracted characteristics from the characterization unit of an object to be suitable to conditions of expressing the target object.

Abstract: An apparatus and a method for predicting reality of an image are provided. The apparatus includes: a prediction model generator for performing a psychophysical observer test on a plurality of first test images provided from outside and analyzing the test result to generate an image reality prediction model; a prediction model verifier for applying the image prediction model to a second test image provided from outside to predict image reality and comparing the prediction result with the test result to verify the image reality prediction model; and a reality prediction model applier for applying the verified image reality prediction model to a target evaluation image and providing the prediction result.

Abstract: A virtual reality embodying system uses 2D images and HDRI data taken of a target object through a camera to embody virtual reality. A modeling unit compares the 2D image's coordinate with a real coordinate to calculate a transform matrix, calculates a vanishing point of a reference vector, uses the vanishing point to calculate a camera matrix, uses the camera matrix and the transform matrix to calculate a rotation matrix and a translation matrix, and uses the rotation matrix and the translation matrix to model the 2D image into a virtual model. A rendering unit uses the HDRI data as texture to render the virtual model, and embodies the HDRI into an extended VRML node to apply the virtual model to the VRML environment.

Abstract: A client system for implementing a 3D virtual reality by using X3D (extensible 3D) data provided from a service server includes an applet, a communication module, and a browsing means. The applet communicates with the service server to receive the X3D data and transmit the received X3D data. The communication module is connected to the applet in order to provide a communication between the service server and a client. The browsing means parses the X3D data received through the communication module to construct a scene graph; conducts a rendering of the scene graph to have a predetermined form; and, then, displays the scene graph on a display window of the client.

Abstract: A system for supporting a fire fighting for a building and a fire fighting method using the same which are capable of more effectively performing a fire fighting operation by providing, in real time.