Abstract:
멀티미디어 데이터들을 가변적으로 다중화하는 멀티미디어 데이터 다중화 장치 및 방법이 제공된다. 멀티미디어 데이터 다중화 장치는, 멀티미디어 데이터의 속성에 기초하여 다중화 패킷의 크기를 결정하고, 결정된 다중화 패킷의 크기에 따라 멀티미디어 데이터를 다중화하여 전송할 수 있다.
Abstract:
Provided is a receiving apparatus including: a basic service receiving unit which extracts a transmission stream which is provided for a basic service by demodulating and channel-decoding a signal which is received through any one broadcast channel among broadcast channels for the basic service; an additional service receiving unit which extracts a transmission stream which is provided for an additional service by demodulating and channel-decoding a signal which is received through any one broadcast channel for the additional service which is combined with the basic service; an integrated demultiplexer which performs a demultiplex about each of the transmission streams which are respectively provided for the basic service and the additional service in order to extract at least one transmission stream from the transmission stream for the basic service, the transmission stream for the additional service, and a transmission stream for service information; and a source decoder unit which decodes each of the transmission streams which are respectively provided for the demultiplexed basic service and the demultiplexed additional service in order to output a basic source and an additional source which is combined with the basic source.
Abstract:
본 발명은 디지털 방송 시스템의 스테레오스코픽 비디오 송/수신 방법 및 장치에 관한 것이다. 본 발명의 일 실시예에 따른 디지털 방송 시스템의 스테레오스코픽 비디오 송신 방법은, 디지털 방송 시스템에서 좌영상 및 우영상으로 구성되는 스테레오스코픽 비디오의 송신 방법에 있어서, 상기 비디오가 스테레오스코픽임을 나타내는 정보, 상기 스테레오스코픽 비디오의 구성방법에 대한 정보 및 상기 구성방법에 따른 부가 정보를 생성하는 단계; 및 상기 스테레오스코픽 비디오 및 상기 생성한 정보들을 전송하는 단계를 포함하고, 상기 구성방법은, 상기 좌,우 영상을 이용하여 상기 스테레오스코픽 비디오를 하나 또는 두 개의 부호화 스트림으로 구성하는 것이고, 상기 부가 정보는, 상기 스테레오스코픽 비디오가 상기 하나의 부호화 스트림으로 구성된 싱글스트림 모드의 경우에는 상기 좌,우 영상의 위치 정보를 포함하고, 상기 스테레오스코픽 비디오가 상기 두 개의 부호화 스트림으로 구성된 듀얼스트림 모드의 경우에는 각 부호화 스트림이 상기 좌영상인지 상기 우영상인지를 나타내는 정보 및 상기 각 부호화 스트림 간의 연관관계를 나타내는 정보를 포함한다.
Abstract:
The present invention relates to a non-real time stereoscopic video service method and an apparatus thereof. The non-real time stereoscopic video service method performed by a reception apparatus according to one embodiment of the present comprises the steps of: extracting a program association table from a received TS and analyzing the same; extracting a program map table corresponding to a program selected by a user from the program association table and analyzing the same; extracting a stereoscopic video service descriptor from the program map table and analyzing the same; generating frame and/or time information of an image to be reproduced according to the analysis of the stereoscopic video service descriptor; and reproducing an image by synchronizing a reference image and a supplementary image based on the generated frame and/or time information, wherein the step for generating the frame and/or time information of the image to be reproduced comprises: determining whether or not time stamp information regarding the image to be reproduced has been lost; and when it is determined that the time stamp information has been lost, generating the frame and/or time information based on time stamp information regarding a start of a stereoscopic video service included in the stereoscopic video service descriptor and information regarding access unit (AU) numbers of video images which have been transmitted so far after the stereoscopic video service was started. [Reference numerals] (AA) Start; (S210) Extract PAT from a Ts and analyze it; (S220) Extract PMT from the Ts and analyze it; (S230) Extract an SS-descriptor from the PMT and analyze it; (S240) Generate reproduction image frame/time information by using TimeStamp and/or FirstAUTimeStamp, LastAUNumber Tag; (S250) Reproduce a reference image and a supplementary image
Abstract:
본 발명은, 3D 영상을 제공하는 영상 시스템에서 사용자의 시청 환경 및 컨텐츠 특성에 따라 자막 및 텍스트 등을 영상 데이터에 삽입하여 제공하는 장치 및 방법에 관한 것으로, 영상 데이터 및 깊이 정보 데이터를 수신하여 스테레오스코픽(stereoscopic) 영상 데이터를 생성하는 입체 영상 생성부와, 상기 스테레오스코픽 영상 데이터로부터 3D 영상의 시차 정보를 분석하고, 상기 분석한 시차 정보를 단계 별로 구분하여 시차 단계 정보를 결정하는 시차 계산부와, 상기 시차 단계 정보를 적용하여 자막 및 텍스트를 생성하고, 상기 생성한 자막 및 텍스트의 위치 정보를 생성하는 자막 및 텍스트 발생부, 및 상기 자막 및 텍스트의 위치 정보를 통해 상기 스테레오스코픽 영상 데이터에 상기 자막 및 텍스트를 삽입하여 3D 영상 데이터를 제공하는 영상 합성부 를 포함한다.
Abstract:
PURPOSE: A transmission device for providing a stereoscopic broadcasting service of a program linkage type and a method and a reception device and a method thereof are provided to enable a reference picture to use a 2DTV system, and to deliver an additional picture based on an advanced television systems committee and a network resource table transmission mechanism in non real time, thereby overcoming a limit of a 3D band width and supplying compatibility with a existing 2D broadcasting system. CONSTITUTION: A real time stream encoder(210) generates a real time stream by encoding a reference picture. A non real time stream encoder(230) generates a non real time stream based on an additional picture. A picture synchronization information generator(220) generates a picture synchronization information stream and service signaling for synchronization of the reference picture and the additional picture. A re-multiplexer(240) generates a stereoscopic broadcasting stream of a program linkage type. [Reference numerals] (201) Standard image; (203) Additional image; (205) Transmitting server; (210) Real time stream encoder; (220) Service signaling and image synchronization information generator; (222) 3D contents synchronization information; (234) NRT signaling information encoder; (236) NRT contents encoder; (240) Re-multiplexer; (AA) Real time stream; (BB) Service signaling and image synchronization information; (CC) NRT signaling information; (DD) Non real time stream; (EE) Non real time stream encoder; (FF) Non real time contents managing unit; (GG) Program linkage type stereoscopic broadcasting stream
Abstract:
PURPOSE: A method for synchronizing between additional images and reference images of a real-time broadcasting program and a device thereof are provided to perform a signaling operation for synchronization time information with a stream transmitted in real time, thereby providing steadily a stereoscopic picture service. CONSTITUTION: A program map table corresponding to a program selected is extracted(S410). Information defined by a program level descriptor and an elementary stream level descriptor is extracted(S415). Whether a file of a related additional picture stores in a memory is checked(S420). The additional picture is loaded from the memory(S425). Timing difference necessary for synchronization of between a reference picture and the additional picture(S430). [Reference numerals] (AA) Image transmitting device; (BB) Image receiving device; (S400) Generating stream to be transferred; (S405) Transferring the stream; (S410) Extracting PMT; (S415) Extracting information; (S420) Checking an additional image file stored in a memory; (S425) Loading the additional image; (S430) Calculating Δt; (S435) Synchronizing frames between a standard image and the additional image; (S440) Providing a stereoscopic image
Abstract:
PURPOSE: An image display device and a method thereof are provided to display a 3D image by a multilayered barrier method. CONSTITUTION: A measuring unit(850) measures the distance between a viewer who watches a 3D image and a screen, right/left locations, and the face slope of the viewer. A barrier controller(860) selects and controls a parallax barrier using a signal measured by the measuring unit. A barrier switch(870) switches a parallax barrier by control of the barrier controller. A multi-layer parallax barrier(820) is turned on/off by switching of the barrier switch to transmit/block light. An LCD panel(810) displays a 3D image by the light.
Abstract:
PURPOSE: A method for transmitting and receiving a 3D broadcasting service are provided to supply the 3D broadcasting service in real time or non-real time and secure the compatibility with a 2D broadcasting of a digital broadcasting. CONSTITUTION: A reference image stream and an additional image stream are generated(900). Signaling information is generated(910). Information about the generated components is inputted into the signaling information. One or more among the signaling information, the reference image stream, and the 3D additional image stream are multiplexed through different channels(920). The multiplexed result is transmitted to the reception terminal through a distribution network(930).