Abstract: Provided is an apparatus and method for setting a sensor node to be automatically connected. An apparatus for setting a connection of a sensor node may include: a data receiver to receive, from the sensor node, sensor data that is measured by the sensor node; a node type determining unit to determine a type of the sensor node based on the received sensor data; and a sensor node setting unit to set the sensor node to be automatically connected based on the determined type of the sensor node.

Abstract: Disclosed is an intermediate node apparatus for configuring a sensor network and a sensor data processing method using the intermediate node apparatus. The intermediate node apparatus may deliver sensor data measured by a sensor node apparatus to a neighboring node apparatus and may store the sensor data in a database.

Abstract: There are provided a sensor data processing apparatus, and a sensor data distributed processing system including the same. The sensor data distributed processing system includes: a plurality of sensors; one or more sensor data processing apparatuses each configured to compress a sensor signal received from at least one of a plurality of sensors, to create a compressed sensor signal, to adjust the sensor signal based on a reliability of the sensor signal, to analyze the adjusted sensor signal to provide analysis data, to synchronize the compressed sensor signal with the analysis data, to transmit the synchronized sensor data, and to provide management data to a corresponding sensor; and a sensor data management apparatus configured to monitor synchronized sensor data received from each sensor data processing apparatus, and to provide management data to the sensor data processing apparatus.

Abstract: Provided is a method of obtaining spatial images on demand. The server segments a spatial image into a plurality of regions to detect an isolated region whose continuity with peripheral regions is less than a threshold value, generates geographic information corresponding to the detected isolated region, and generates a capture request message including the generated geographic information. In addition, the capture request message may be transmitted to at least one terminal using unicast scheme, a multicast scheme, an anycast scheme, or a broadcast scheme. The capture request message may comprise a capture condition value such as a capture direction, a capture angle, a capture time, a zoom information and an exposure value. At least one terminal which meets the capture condition value within the capture request message transmits a captured image to the server.

Abstract: Disclosed are a method and an apparatus for coding a stereoscopic video. The method of coding a stereoscopic video includes coding an original reference image; performing preprocessing based on the original reference image, a decoded reference image, and an original additional image; coding the original addition image based on the original additional image and an improved decoding image obtained by performing the preprocessing; and performing postprocessing based on the original additional image and a decoded additional image.

Abstract: Disclosed is a broadcast advertisement service system based on media ID matching, including: a broadcast-contents receiving terminal for receiving broadcast contents from a broadcasting system for a TV broadcaster and displaying the broadcast contents; a server for an AR advertisement broadcaster for receiving the broadcast contents from the broadcasting system for the TV broadcaster, generating a first media ID lookup table from the broadcast contents, and searching for AR advertisement data linked with on-air broadcast contents by referring to the first media ID lookup table; and a user terminal for acquiring the on-air broadcast contents in real time from the broadcast-contents receiving terminal, generating a second media ID lookup table from the acquired on-air broadcast contents, receiving the AR advertisement data linked with the on-air broadcast contents from the server for the AR advertisement broadcaster, and mixing and displaying the acquired on-air broadcast contents and the received AR advertisem

Abstract: A continuous connectivity-lacking network environment-based node apparatus, node management apparatus, communication system, and node management method are provided. The node management apparatus includes a communication unit configured to receive node information from the mobile node through an additional communication network, which is separate from a continuous connectivity-lacking network, and transmit contact information generated by a control unit regarding one or more neighboring nodes of the mobile node to the mobile node via the additional communication network; and the control unit configured to generate the contact information based on the node information received by the communication unit. Accordingly, it is possible for the mobile node to quickly set a communication link and search for any neighboring communicable node.

Abstract: Provided is a mobile device for a personalized service including: a media receiving unit acquiring broadcasting contents during expressing in a broadcast viewing terminal device; and a comparing unit generating a media ID based on the broadcasting contents acquired in the media receiving unit, comparing the generated media ID with a media ID in a media ID list received from a media ID server to identify a channel ID, and transmitting a personalized service request message including the identified channel ID and a user ID to a personalized information providing server to request a personalized service.

Abstract: Disclosed is a method for locating wireless nodes using difference triangulation, including: storing information transmitted from three or more fixed wireless nodes while moving on a movement path; calculating displacement vectors among three or more measurement points sharing the information of three or more fixed wireless nodes on the movement path; calculating positional information of the mobile wireless node at another measurement point by reflecting the calculated displacement vectors to the positional information of the mobile wireless node calculated at a measurement point of a region where a location of at least one fixed wireless node is known; and calculating positional information of a location-unknown fixed wireless node by the positional information of the mobile wireless node calculated at the three or more measurement points and information received from the location-unknown fixed wireless node.

Abstract: Disclosed is a multicast controlling apparatus and method in a multi hop network. The multicast controlling apparatus in the multi hop network includes a packet determining unit to receive a packet from a group management query device or a station, and to determine whether the received packet is a group management protocol packet, a packet type distinguishing unit to distinguish a type of the received packet when the received packet is determined as the group management protocol packet, and a packet transmitting unit to transmit the packet to a second port excluding a first port that receives the query message, when the received packet is determined as the query message.

Abstract: Disclosed is a 3D video display device providing a first video inputted into a left eye and a second video inputted into a right eye, the 3D video display device including: a control information acquiring device receiving control information; and a 3D broadcasting receiving device controlling a binocular disparity between the first video and the second video by using the control information transferred from the control information acquiring device as a key. According to the present invention, since a 3D video is reconfigured considering a distance between the user and the 3D video display device acquired by a control information acquiring device, a user's preference, or the like, it is possible to provide the 3D video in which a user can perceive optimal depth perception.

Abstract: Disclosed is a system of transporting multimedia based on network, and more particularly, to an apparatus for inserting, transporting and extracting a timestamp through a network protocol. A network timestamp is transported without changing a preset transport standard such as a UDP, an RTP and a MPEG-2 standard by adding a packet having a timestamp, which is used to compensate for network jitter and used for synchronization, to a packet stream transported through a UDP or an RTP.

Abstract: A multicast communication method, a multicast communication apparatus and a multicast communication system in a network environment lacking a continuous connectivity. The source node device selects a group leader device which is able to forward data to group member devices belonging to a multicast group, and forwards the data to the selected group leader device, thereby reducing traffic between node devices, improving network reliability and saving the communication cost.

Abstract: A fragmentation repetition detection apparatus (410) for detecting an IP fragmentation repetition which may occur in a multicast or unicast environment is provided. The fragmentation repetition detection apparatus (410) includes a packet capturing unit (411) which captures a received packet, a fragmentation repetition detector which detects whether or not the captured packet is a packet which is repetitively fragmented, and a path maximum transmission unit (PMTU) transmitter (414) which transmits PMTU information acquired by the fragmentation repetition detector (412) to a server which transmits the packet when the captured packet is a packet which is repetitively fragmented. Since a packet is transmitted by readjusting a PMTU, a fragmentation of an IP packet can be prevented.

Abstract: A subscriber terminal-based personalized broadcast service system and method are provided. The subscriber terminal-based personalized broadcast service method includes receiving broadcast program schedule information from a broadcast head-end and receiving content schedule information from at least one content server; creating a personalized channel schedule in which a plurality of broadcast programs and a plurality of contents are arranged according to time with reference to the broadcast program schedule information and the content schedule information; and receiving a broadcast program or a content requested with reference to the personalized channel schedule from the broadcast head-end or the content server. Therefore, it is possible for a subscriber to view various broadcast programs and contents at any desired time.

Abstract: Disclosed is an overlay multicast system for a group media transmission application service composed of a multiple stream, wherein, when an additional stream is newly transferred to a predetermined node in an overlay network, the overlay multicast system transmitting a plurality of streams in the overlay network generates a multiple stream by muxing a main stream inputted from a parent node and the additional stream based on stream correlation information in the predetermined node, and transmits the generated multiple stream to a child node.

Abstract: Provided are a channel server, a channel prediction server, a terminal, and a method for a fast channel switching. The channel server may generate at least one delay multicast stream from an original multicast stream by applying a different delay value based on channel preference information, and may determine an optimal multicast stream from the at least one delay multicast stream, and transmit, to a terminal, response information associated with the optimal multicast stream in response to query information associated with the original multicast stream received from the terminal.

Abstract: A terminal, a relay node, and a stream processing method for a video conference system may be provided. A transmitting terminal may receive media data, generate elementary streams from the media data, generate a transport stream by multiplexing the elementary streams, and transmit the transport stream to a relay node associated with a first receiving terminal among receiving terminals.

Abstract: Provided is a system for providing a multi-angle broadcasting service. A transmission apparatus may transmit, to a reception apparatus, a plurality of source images photographed at a plurality of angles and a multi-screen image including the plurality of source images. The reception apparatus may receive the multi-screen image and decode a source image based on a user selection.

Abstract: Provided is a technology of controlling an electronic device using a broadcasting system. A control signal may be modulated to an audible frequency band and thereby be transmitted from a transmission apparatus to a reception apparatus using the broadcasting system. The reception apparatus may reproduce the control signal of the audible frequency band. A controller may perform a control operation based on the control signal.