Abstract:
PURPOSE: A non-real time performing method and an apparatus thereof are provided to request an error part of digital broadcasting content. CONSTITUTION: A file verifying unit determines whether an error part of non-real time service content is retransmitted. A re-transmitting request signal generating unit generates a re-transmitting request signal. The re-transmitting request signal is a signal for requesting retransmission of the error part. A return channel transmitting unit transmits the re-transmission request signal through a return channel network.
Abstract:
PURPOSE: A data transceiving device in communication system and a method thereof are provided to transceive the reference image and 3D additional image as a 3D image data by a side-by-side or top-down stereoscopic image format in a dual stream digital broadcasting system. CONSTITUTION: An image format unit(810) formats basic image and 3D additional image of a 3D image in 3D broadcasting service in a stereoscopic image. A first encoder(820) encodes the basic image data corresponding to a formatted basic image. A second encoder(825) encodes 3D additional image data corresponding to a formatted 3D additional image. A multiplexing unit(830) multiplexes an encoded basic image data and an encoded 3D additional image data into a 3D image data of a single stream.
Abstract:
PURPOSE: A data transceiving device in a communication system and a method thereof are provided to efficiently supply a broadcast service to users who subscribe to a corresponding broadcast service. CONSTITUTION: Basic source units(202,206,208,212,214,218) generate broadcast data for each 3D broadcast service. First multiplexers(242,244,246) multiplex each broadcast data for each allocated broadcast channel. A second multiplexer(248) multiplexes each additional data for one common broadcast channel. First transmitting units(262,264,266) transmit the multiplexed broadcast data to each broadcast channel. A second transmitting unit(268) transmits encoded additional data to one common broadcast channel.
Abstract:
PURPOSE: A broadcasting data transmission system is provided to improve data transmission performance in a fading channel by decoding a data stream. CONSTITUTION: A broadcasting data transmission apparatus controls the transmission power of a data stream according to a modulation method about each transmission antenna(310). The broadcasting data transmission apparatus previously codes the data stream controlled by the transmission power using a pre-coding matrix according to the modulation method(320). The broadcasting data transmission apparatus transmits the coded data stream to a reception unit using the transmission antenna(330).
Abstract:
PURPOSE: A transmission device for a 2D mode generation in a digital terminal, a 2D mode reproducing device, and a 2D reproducing method are provided to improve image quality by using 3D related information. CONSTITUTION: A generating unit(910) generates additional 3D related information. The additional 3D related information includes identification information. The identification information shows an image suitable for a 2D mode reproduction among a reference image and an additional image. An identification information generator(915) generates identification information based on the format type of a 3D program. A providing unit(930) provides 3D related additional information to a digital terminal.
Abstract:
본 발명은 영상 디스플레이 장치 및 방법에 관한 것으로, 보다 구체적으로 영상 시스템에서 영상 디스플레이 장치 및 방법에 관한 것이다. 본 발명의 일 실시 예에 따른 시선 추적 방법은 복수의 영상촬영기기로부터 수신된 한 시점 이상의 컬러 영상들과 깊이 영상들을 인코딩하고, 상기 현재 시점의 인코딩된 깊이 영상과 현재 시점 전후의 인코딩된 컬러 영상 및 깊이 영상을 소정의 방법으로 합성하여 참조 영상을 생성하며, 상기 생성된 참조 영상을 이용하여 현재 시점의 컬러 영상을 디코딩하고, 상기 인코딩된 한 시점 이상의 컬러 영상들과 깊이 영상들을 디코딩하고, 상기 디코딩된 한 시점 이상의 컬러 영상들과 깊이 영상들을 시점별로 구분하여 분리하고, 상기 영상 디스플레이 장치는 상기 분리된 컬러 영상을 수신하여 디스플레이하 하고, 상기 분리된 컬러 영상과 깊이 영상을 소정의 방식으로 렌더링하여 디스플레이하 하며 상기 분리된 한 시점 이상의 컬러 영상과 깊이 영상을 소정의 방식으로 렌더링하여 디스플레이 한다.
Abstract:
본 발명은, 영상 시스템에서 다양한 형태의 영상들을 사용자들이 시청 가능하도록 각 영상을 생성하는 다중 소스(source)로부터 다중 영상을 디스플레이하는 다중 영상 제공 장치 및 방법에 관한 것으로, 복수의 사용자들에게 제공하고자 하는 다양한 형태의 영상을 동기화하여 각각 생성하고, 상기 각각 생성된 영상을 각각 시분할하고, 상기 각각 시분할된 영상을 다중화하고, 상기 다중화된 다중 영상을 동시에 다시점으로 디스플레이하며, 상기 복수의 사용자들에 대한 사용자 트래킹(tracking)을 통해 상기 다중 영상에서 각 사용자들이 제공받고자 하는 영상만을 상기 각 사용자들에게 제공한다.
Abstract:
PURPOSE: A camera device for acquiring a stereo image, a multi-viewpoint image, and a depth image, and a control method are provided to acquire the stereo image and the multi-viewpoint image altogether or selectively. CONSTITUTION: Two or more cameras of a camera unit(110) acquire a stereo image. A camera control unit(120) controls the gaze angle and interval of the camera. A depth information acquisition unit(160) acquires depth information from the stereo image. An intermediate image generator(170) generates an intermediate image using the stereo image and the depth information.
Abstract:
PURPOSE: A virtual viewpoint video producing method and apparatus thereof are provided to generate a virtual viewpoint image of high quality by accurately compensating a non-processed region by using a background image about a virtual viewpoint image. CONSTITUTION: A reference viewpoint background image generator(520) obtains a reference viewpoint image from reference viewpoint image apparatuses. The reference viewpoint background image generator generates background images from reference viewpoint images. A virtual viewpoint image generator(510) synthesizes the reference viewpoint images. A non-processed region compensator(540) recompenses a non-processed region of the virtual viewpoint images.
Abstract:
PURPOSE: An apparatus and method for multiplexing multimedia data are provided to variably multiplex multimedia data based on the size of a packet determined according to the attribute of the multimedia data. CONSTITUTION: Based on the attributed of multimedia data, a multiplexing control unit(520) determines the size of a packet variably. The multiplexing control unit determines an FEC(Forward Error Correction) type of the multimedia data variably. Based on the determined size and FEC of the packet, PSI(Program Specification Information) generation unit(540) generates PSI(Program Specification Information) data. A multiplexing unit(550) multiplexes the multimedia data and the PSI data respectively.