Abstract: Disclosed are a method and apparatus for measuring rotation characteristics such as rotation rate, rotation axis, and rotation angle of a rotating body. A method of measuring rotation characteristics includes extracting a rotating-body region from an image of the rotating body; extracting a surface pattern of the rotating body on the basis of brightness values of the extracted rotating-body region and acquiring rotation characteristics of the rotating body on the basis of change in the extracted surface pattern. Accordingly, it is possible to accurately measure rotation characteristics regardless of variation in brightness values of a surface region of the rotating body depending on illumination of a lamp, sensitivity of a camera, and exposure time of a camera.

Abstract: There are provided a device for projecting a super multi-view image that provides an image of two views to a user's pupil and a method thereof. A device for projecting a super multi-view image according to an embodiment of the present invention includes an operating unit configured to receive super multi-view image content and transmit the received super multi-view image content and a driving signal, and a control unit driven by the driving signal received from the operating unit and configured to divide the received super multi-view image content into a plurality of single-view images, load the divided single-view images in a high speed image display device, and transmit an open command signal to an active shutter corresponding to the single-view image loaded in the high speed image display device among an active shutter array.

Abstract: The present invention relates to a system for storing and managing a comment on content in a social community, and enabling another user to retrieve content or a comment. In particular, the present invention may generate image comments for target content from users of a social community, and summarize the generated imaged comments.

Abstract: A method and apparatus for quickly generating a natural terrain. The method according to an exemplary embodiment may include generating a new terrain through a patch-based synthesis from one or more virtual noise-based terrain models and one or more realistic terrain models; and processing blending of a boundary between synthesized terrains in the newly generated terrain.

Abstract: The present invention provides an apparatus for analyzing human motion including a bio-sensor configured to transmit a bio-signal by being attached to a body part; a receiver configured to receive the bio-signal; and a controller configured to determine position and velocity of the bio-sensor based on the bio-signal and estimate position and velocity of the joint adjacent to the body part based on the position and velocity of the bio-sensor. Accordingly, the present invention can reduce restrictions in movements by using a wireless bio-signal without having any problem in being hidden.

Abstract: A multi-graphics processing unit (GPU)-based multi-physics simulation method and apparatus. In an exemplary embodiment, the multi-physics simulation method includes: determining a domain dividing manner by performing mock simulation; performing main simulation by using multi-graphic processing units (GPU) by targeting a plurality of physics model data on domains divided in the determined domain dividing manner; and sharing a result of the main simulation.

Abstract: The present invention relates to a method and apparatus for generating dance motion based on pose and timing constraints. A method and apparatus for generating dance motion based on pose and timing constraints according to an embodiment of the present invention can, when a user assigns pose to the music for authoring dance choreography, search poses including the most similar pose and select poses having high connectivity to naturally connect them.

Abstract: An apparatus for tutoring in a convergence space of real and virtual environment, includes a character data processing unit for generating character shape and operation data of a participant or performing rendering on the character shape and operation data; a desk data processing unit for generating desk shape data or perform the rendering on the desk shape data; a voice and sound data processing unit for generating voice or sound data or outputs the voice or sound data; and a virtual space processing unit for generating real space data and providing the generated data to another participant, generating the convergence space data, or generating the character shape data, the operation data, the desk shape data, and the voice or sound data, then providing the generated data to the character data processing unit, the desk data processing unit, and the voice and sound data processing unit.

Abstract: An apparatus and method for tracing a motion of an object using high-resolution image data and low-resolution depth data acquired by a hybrid camera in a motion analysis system used for tracking a motion of a human being. The apparatus includes a data collecting part, a data fusion part, a data partitioning part, a correspondence point tracking part, and a joint tracking part. Accordingly, it is possible to precisely track a motion of the object by fusing the high-resolution image data and the low-resolution depth data, which are acquired by the hybrid camera.

Abstract: A holographic content providing method, and a holographic content providing apparatus and a display apparatus using the method may capture and generate holographic content using a real object, a virtual object and lighting information, and may conduct integrated processing on the generated holographic content, such as direct edition, advance visualization, data format conversion, element technologies for optical reconstruction and manufacture process management techniques of holographic content, thereby producing ultrahigh-quality interactive holographic content.

Abstract: The present invention relates to a method of generating implicit terrain data and an electronic apparatus for performing the method, and more particularly to a method of generating implicit terrain data and an electronic apparatus which are capable of minimizing a size of data while maintaining geographical quality of original terrain data.

Abstract: The present disclosure relates to a method of editing terrain data created by a procedure method, and particularly to a method of editing terrain data based on multiresolution for intuitively editing high-quality terrain data. To this end, the method of editing terrain data created by a procedure method includes: inputting terrain data in a form of a height map; processing a multiresolution analysis by dividing the input height map for each band; processing a terrain edition based on the multiresolution by adjusting a height value within a predetermined distance from a position selected from the multiresolution analyzed height map; and storing the multiresolution-based terrain edition processed height map in a form of a progressive mesh.

Abstract: Provided is a tree model generating method according to an embodiment of the present invention. The tree model generating method includes separating and extracting a skeleton of a tree from an image including the tree to generate a matte image, applying a graph representation scheme of a two-dimensional (2D) object to the matte image to generate an object skeleton graph, generating a depth information value in accordance with a predetermined rule and allocating the generated depth information value to each node on the object skeleton graph to generate a three-dimensional (3D) primary tree model, adding branches to the primary tree model based on a branch library constructed in advance and the predetermined rule to generate a secondary tree model, and performing self-growth representation with respect to the secondary tree model based on a distance between each node on the object skeleton graph to generate a tertiary tree model.

Abstract: There are provided a method of generating a terrain model and a device using the same. The method of generating a terrain model includes dividing a primitive terrain model into a plurality of partial terrain sections based on a predetermined criterion, assigning the plurality of partial terrain sections to a multiprocessor, and generating a final terrain model by performing a terrain transformation simulation of the plurality of partial terrain sections through parallel processing based on the multiprocessor. Therefore, it is possible to rapidly generate a realistic terrain model.

Abstract: A method for representing a terrain, a method for creating terrain primitives, and an apparatus using the methods are disclosed. The terrain representation method includes: reading digital elevation model (DEM) data of a terrain; extracting feature points of the terrain from the DEM data of the terrain; creating a plurality of terrain primitives according to the feature points of the terrain; storing terrain representation model data based on the plurality of terrain primitives; and converting the terrain primitive based terrain representation model data into DEM data, and visualizing the DEM data.

Abstract: A system and a method perform buoyance of a 3D hologram image on a hologram display screen in a projection mode. A system of displaying a digital hologram includes: a composite hologram unit configured to generate a hologram array by receiving hologram data of a fringe pattern and by compositing background image and a foreground image using the received fringe pattern; a hologram projection unit configured to project a hologram image through a wide-angle lens by applying a light to the hologram array; and a hologram display unit configured to perform space buoyance of the hologram image projected by the hologram projection unit on a 3D hologram display screen. The digital hologram content is managed in real time, and transmission of the digital hologram content to a remote place and site adaptive display of hologram image media may be achieved.

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.

Abstract: Provided are a method and apparatus for tuning a trajectory model of a ball. The method includes generating a real trajectory of the ball based on a difference among a plurality of flight images for the ball, calculating kinetic characteristics of the ball based on the real trajectory, correcting at least one of the kinetic characteristics and a characteristic coefficient of the ground based on the real trajectory, and tuning a ball simulation trajectory based on the corrected at least one of the kinetic characteristics and the characteristic coefficient of the ground. A trajectory after the ball collides with the ground can be accurately generated.

Abstract: A method of providing a service using a user description, a service description, and a contents description may include: receiving first user information from a first user description including first user information; receiving environment information from the contents description including environment information; selecting optimal service information from the service description including service information based on at least one of the first user information and the environment information; and providing a service corresponding to the selected optimal service information to a first user.

Abstract: Provided is a method of managing contents in a social networking service, the method including storing information about each of a plurality of users participating in the social networking service, in a table structured based on a predetermined syntax, receiving a search request from a first user among the plurality of users, providing the first user with contents owned by a second user, as a search result corresponding to the search request, by referring to the structured table, receiving an additional search request from the first user, and providing the first user with additional contents owned by the second user, as a search result corresponding to the search request, by referring to the structured table.