Abstract: An apparatus and a method for correcting colors of an image projection device are provided. The method includes: acquiring a photographed image by photographing a sample image projected on projection surface; generating input-output color information for n regions, based on color values of a block in the sample image and corresponding color values of the block in the photographed image; selecting one of the n regions of photographed images as a reference region; generating look-up tables (LUTs) for non-reference regions, based on the reference region and the input and output color information; and correcting colors of input images to be projected by the image projection device using the look-up tables, thereby minimizing color difference of the input images on the projection surface for both intra and inter projection device color correction while simplifying the correction procedure.

Abstract: The present invention proposes a method and apparatus for correcting a motion of panorama video captured by a plurality of cameras. The method of the present invention includes performing global motion estimation for estimating smooth motion trajectories from the panorama video, performing global motion correction for correcting a motion in each frame of the estimated smooth motion trajectories, performing local motion correction for correcting a motion of each of the plurality of cameras for the results in which the motions have been corrected, and performing warping on the results on which the local motion correction has been performed.

Abstract: A method of receiving content in a client is provided. The method may include receiving, from a server, a spatial set identifier (ID) corresponding to a tile group including at least one tile, sending, to the server, a request for first content corresponding to metadata, and receiving, from the server, the first content corresponding to the request.

Abstract: The present specification is related to a method for performing multi-projection and a multi-projection system for minimizing a black offset in a multi-projection environment. The present specification provides the method for performing multi-projection comprising estimating the intensity transfer function (ITF) of a plurality of projectors, calculating an optimal black offset threshold for each of the projectors by using each of the ITFs, and applying the optimal black offset threshold to an image projection by each of the projectors.

Abstract: A device-adaptable contents generation device includes a media generation unit that generates, based on rich media content, basic level media having a first resolution and at least one extended level media having a higher resolution by stages than the first resolution, a metadata generation unit that generates metadata which allows selective access to the basic level media and the at least one extended level media generated by the media generation unit, a feature information generation unit that generates feature information about the rich media content, and a database that stores a file of the rich media content containing the feature information, the metadata, the basic level media and the at least one extended level media.

Abstract: Disclosed are an implementation method of a user interface and a device using the same method. The implementation method of a user interface comprises a step for receiving AUI (Advanced User Interaction) pattern information and a step for interpreting the inputted AUI pattern information based on a predefined interface. Therefore, a preset AUI pattern generated in a user interaction device is implemented in various applications by defining the implementation method of an interface between a user interaction device and a scene description.

Abstract: Disclosed are a color correction apparatus for panorama video stitching and a method of selecting a reference image using the same. A method of selecting a reference image for color correction when stitching panorama video based on input images includes selecting an optimum reference image candidate from the input images based on standard deviations for overlapping regions between the input images, performing color correction on the input images based on the optimum reference image candidate, and validating the optimum reference image candidate based on the color-corrected input images.

Abstract: The invention relates to an advanced user interaction (AUI) interface method, comprising a step of determining, from between a basic pattern type and a synthetic pattern type, the pattern type corresponding to physical information inputted from an object. The synthetic pattern type is a combination of at least two basic pattern types. The basic pattern type includes a geometric pattern type, a symbolic pattern type, a touch pattern type, a hand posture pattern type, and/or a hand gesture pattern type. The synthetic pattern type may include attribute information indicating whether the synthetic pattern type is one created by the same object. Thus, an advanced user interaction interface for advanced user interaction devices such as a multi-touch device and a motion-sensing remote controller may be provided.

Abstract: Provided is an apparatus and method for processing a scene that may prevent overload of a scene caused by transmission of excessive information, by generating geometric information corresponding to meaningful information, as which sensed information may be construed semantically, and by only transmitting the geometric information to the scene, instead of transmitting, to the scene, all of the sensed information with respect to a real world.

Abstract: Disclosed herein are a system and a method for providing multimedia services capable of providing various types of multimedia contents and information sensed at multi-points to users at a high rate and in real time at the time of providing the multimedia contents and sense scene representation and sensory effects for multimedia contents corresponding to multimedia services through the multi-points according to service requests of the multimedia services that users want to receive, encode and transmit the sensed information for scene representation and sensory effects with binary representation according to the sensing, transmit device command data for the sensed scene representation and sensory effects, drive and control user devices according the device command data to provide the scene representation and the sensory effects for the multimedia contents to the users.

Abstract: Provided are a time shift service apparatus and method based on multimedia information, and a multimedia reproducing apparatus using the same. The timeshift service apparatus includes: a timeshift buffering unit for storing a multimedia stream according a timeshift service requested from an outside device; a time obtaining unit for obtaining time information about times of starting and ending a timeshift service according to the timeshift service request; a memory managing unit for storing a multimedia stream, which is serviced based on the obtained time information by the time obtaining unit, in the timeshift buffering unit; and an information generating unit for generating detailed information for the multimedia stream stored in the timeshift buffering unit.

Abstract: Provided are an apparatus and method of dividing virtual sites using policy properties in multiprotocol label switching (MPLS) networks. In this method, when multiple virtual sites are selected with respect to one interface, not only usually used source IP addresses and VLAN tags but also TOS fields and MPLS labels are used so that more various kinds of virtual sites can be selected. Also, since the TOS fields and MPLS labels can express additional QoS-related information, differentiated services can be provided by selecting a wider variety of kinds of virtual sites.