Abstract: Method and apparatus for processing multimedia data received via different networks by synchronizing time stamps of video frames of multimedia data received via the different networks using time codes in the multimedia data.

Abstract: Method and apparatus for processing multimedia data received via different networks by synchronizing time stamps of video frames of multimedia data received via the different networks using time codes in the multimedia data.

Abstract: A method and apparatus for reproducing a multimedia content are provided. The apparatus includes: a receiver which is configured to receive, through different paths, a first signal including a left-side image and a first synchronization information item, and a second signal including a right-side image and a second synchronization information item; and a signal processor which is configured to synchronize and reproduce the left-side image and the right-side image using the first synchronization information item and the second synchronization information item.

Abstract: A method and apparatus for providing a three-dimensional (3D) image is provided. In the method, first-viewpoint image data and second-viewpoint image data that provide a 3D image are obtained. Time information that represents points of time that the first-viewpoint image data and the second-viewpoint image data are to be processed is produced, based on relation information to indicate that the first-viewpoint image data and the second-viewpoint image data are a pair of pieces of image data. The first-viewpoint image data, the second-viewpoint image data, and the time information are transmitted. The first-viewpoint image data is transmitted in a first stream, and the second-viewpoint image data is transmitted in a second stream.

Abstract: A transmitting device which transmits a plurality of streams is provided. The transmitting device comprises: a first multimedia data consisting of multimedia contents; a first synchronization information for synchronization of a second multimedia data consisting of multimedia contents; a first transmitting data including a first signaling data for the first multimedia data and a second signaling data for the second multimedia data, a data generating unit generating a second transmitting data including a second synchronization information for synchronization of the second multimedia data and the first multimedia data, a first transmitting unit transmitting the first transmitting data supplied from the data generating unit to a receiving device through a broadcasting network, and a second transmitting unit transmitting the second transmitting data supplied from the data generating unit to the receiving device through an IP network.

Abstract: A method of processing video images is provided. The method includes reproducing 3-dimensional (3D) video images by generating left-eye video images and right-eye video images from a video stream, receiving a first command for activating a pop-up interactive graphics stream during the reproduction of the 3D video images, and reproducing 2-dimensional (2D) video images by generating either left-eye video images or right-eye video images from the video stream, in response to the first command for activating the pop-up interactive graphics stream.

Abstract: A method of generating a broadcasting bitstream for a digital caption broadcast, the method including: receiving video data in which a video including at least one of a two-dimensional (2D) video and a three-dimensional (3D) video is encoded; determining caption data for reproduction in conjunction with the video, and 3D caption converting information including information relating to a converting speed of an offset for reproducing the caption data as a 3D caption; and outputting a bitstream for a digital broadcast by multiplexing the received video data, the determined caption data, and the determined 3D caption converting information.

Abstract: A method and apparatus for providing a three-dimensional (3D) image is provided. In the method, first-viewpoint image data and second-viewpoint image data that provide a 3D image are obtained. Time information that represents points of time that the first-viewpoint image data and the second-viewpoint image data are to be processed is produced, based on relation information to indicate that the first-viewpoint image data and the second-viewpoint image data are a pair of pieces of image data. The first-viewpoint image data, the second-viewpoint image data, and the time information are transmitted. The first-viewpoint image data is transmitted in a first stream, and the second-viewpoint image data is transmitted in a second stream.

Abstract: A method and an apparatus for transmitting and receiving a broadcasting stream for providing a digital broadcasting service including a subtitle service are provided. A method of transmitting a data stream includes: generating a subtitle stream including basic viewpoint subtitle data and additional viewpoint subtitle data to reproduce a three-dimensional (3D) subtitle on a video screen on which video data is reproduced; determining 3D subtitle reproduction information for forming the 3D subtitle on the video screen based on the basic viewpoint subtitle data; and outputting a data stream by multiplexing a video stream including the video data, the 3D subtitle reproduction information, and the subtitle stream.

Abstract: Provided are a method and apparatus for processing a graphic stream. The method may include determining whether a graphic picture is reproducible as a three-dimensional (3D) image by assigning different depth values according to graphic objects or by assigning the same depth value to the graphic picture, using 3D capability information.

Abstract: A method of displaying contents, a method of synchronizing contents, and a method and device for displaying contents are provided. The method includes: receiving initial scene configuration information of a content written in a markup language from an external device, structuralizing the initial scene configuration information, rendering the content according to the structuralized initial scene configuration information, receiving additional scene configuration information of the content from the external device, updating the structuralized initial scene configuration information based on the received additional scene configuration information, and rendering the content according to the updated initial scene configuration information.

Abstract: A transmitting apparatus includes a down-scaler configured to down-scale multimedia data; a first encoder configured to encode the down-scaled multimedia data; a first transmitter configured to transmit the encoded multimedia data through a first transmitting network; a decoder configured to decode the encoded multimedia data; an up-scaler configured to up-scale the decoded multimedia data; a restoration data generator configured to generate restoration data using the up-scaled multimedia data; a second encoder configured to encode the restoration data; and a second transmitter configured to transmit the encoded restoration data through a second transmitting network.

Abstract: A transmitting device which transmits a plurality of streams is provided. The transmitting device comprises: a first multimedia data consisting of multimedia contents; a first synchronization information for synchronization of a second multimedia data consisting of multimedia contents; a first transmitting data including a first signaling data for the first multimedia data and a second signaling data for the second multimedia data, a data generating unit generating a second transmitting data including a second synchronization information for synchronization of the second multimedia data and the first multimedia data, a first transmitting unit transmitting the first transmitting data supplied from the data generating unit to a receiving device through a broadcasting network, and a second transmitting unit transmitting the second transmitting data supplied from the data generating unit to the receiving device through an IP network.

Abstract: An image processing method, including extracting shot information from metadata, wherein the shot information is used to classify a series of two-dimensional images into predetermined units; if it is determined, by using shot type information included in the shot information, that frames classified as a predetermined shot can be reproduced as a three-dimensional image, extracting background depth information from the metadata, wherein the background depth information is about a background of the frames classified as the predetermined shot; generating a depth map about the background of the frames by using the background depth information; if the frames classified as the predetermined shot comprise object, extracting object depth information about the object from the metadata; and generating a depth map about the object by using the object depth information.

Abstract: A receiving apparatus is disclosed. The receiving apparatus comprises: a first receiving unit receiving first multimedia data, to which a first time code is added by frame, through a broadcast network; a second receiving unit receiving second multimedia data, to which a second time code is added by frame, through an IP network; a first signal processor for signal processing the first multimedia data and generating a first video frame; a second signal processor for signal processing the second multimedia data and generating a second video frame; a controller for comparing the first time code of the first multimedia data with the second time code of the second multimedia data, and calculating a difference in time stamp information on video frames having matching time codes; and a rendering unit for using the difference in time stamp information to read respective video frames that are synchronized from among the generated first video frame and the second video frame, and performing rendering.

Abstract: An image processing method, including extracting compensation information comprising one from among a depth compensation value and a depth value compensated for by using the depth compensation value; when the compensation information comprises the depth compensation value, compensating for a depth value to be applied to a pixel of a two-dimensional (2D) image by using the depth compensation value, and generating a depth map about the 2D image by using the compensated depth value, and when the compensation information comprises the compensated depth value, generating the depth map about the 2D image by using the compensated depth value; obtaining positions in a left-eye image and a right-eye image by using the depth map, wherein the pixel of the 2D image is mapped to the positions; and generating the left-eye image and the right-eye image comprising the positions to which the pixel is mapped.

Abstract: A method and apparatus for providing a three-dimensional (3D) image is provided. In the method, first-viewpoint image data and second-viewpoint image data that provide a 3D image are obtained. Time information that represents points of time that the first-viewpoint image data and the second-viewpoint image data are to be processed is produced, based on relation information to indicate that the first-viewpoint image data and the second-viewpoint image data are a pair of pieces of image data. The first-viewpoint image data, the second-viewpoint image data, and the time information are transmitted. The first-viewpoint image data is transmitted in a first stream, and the second-viewpoint image data is transmitted in a second stream.

Abstract: A reception device is provided. The reception device includes: a first receiver receiving a first real-time transport stream via a broadcast network; a second receiver receiving a second real-time transport stream via a communication network; a delay processor delaying at least one of the first and second real-time transport streams for synchronization; a first detector detecting first data from the first real-time transport stream; a second detector detecting second data from a second real-time transport stream; a signal processor combining the first data and the second data so as to constitute multimedia content; and a playing unit playing the multimedia content.

Abstract: Provided are a method and apparatus for processing a graphic stream. The method may include determining whether a graphic picture is reproducible as a three-dimensional (3D) image by assigning different depth values according to graphic objects or by assigning the same depth value to the graphic picture, using 3D capability information.

Abstract: The present invention comprises: a receiving unit for receiving, through different paths, a first signal including a left-side image and a first synchronization information item, and a second signal including a right-side image and a second synchronization information item; and a signal processing unit for synchronizing and reproducing the left-side image and the right-side image using the first synchronization information item and the second synchronization information item. At least one information item, from among a content start information item, a timestamp difference between a first data item and a second data item, a frame index, a time code information item, a UTC information item, and a frame count information item, can be used as the first and second synchronization information items. Accordingly, different data can be effectively synchronized.