Abstract:
PURPOSE: A candidate list sharing method and a device thereof are provided to perform prediction between screens by allowing a plurality of prediction blocks to share a single candidate list, thereby reducing complexity of the prediction. CONSTITUTION: First and second prediction blocks(600,650) produce a spatial merging candidate from a same spatial merging candidate block and share the spatial merging candidate. An A0 block(605), an A1 block(610), a B0 block(615), a B1 block(620), and a B2 block(625) are used as a spatial merging candidate block for the first and second prediction blocks. The first and second prediction blocks share a temporal merging candidate. Temporal merging candidate blocks(660,670) are induced to a block in a position which is calculated based on an upper left position of a coding block and a size of the coding block.
Abstract:
PURPOSE: A method for transmitting and receiving a stereoscopic video of a digital broadcasting system and a device thereof are provided to supply a stereoscopic video service which supports a single stream mode and a dual stream mode of the stereoscopic video. CONSTITUTION: A stereoscopic video transmission device generates a stereoscopic video corresponding to a predetermined composition method(S301). The stereoscopic video transmission device generates information which shows the stereoscopic video, information for a composition method of the stereoscopic video, additional information for the stereoscopic video corresponding to the composition method(S303). The stereoscopic video transmission device transmits the generated stereoscopic video and the generated information to a terminal(S305). [Reference numerals] (S301) Generating a stereoscopic video transmission device corresponding to a predetermined composition method; (S303) Generating information which shows that the generated video is stereoscopic, information for a composition method, and additional information for the stereoscopic video corresponding to the composition method; (S305) Transmitting the generated stereoscopic video and the generated information;
Abstract:
PURPOSE: A three dimensional service providing method is provided to enable users to effectively access multimedia which the users are immersed by extracting the connected media of files stored using a non-real time stream. CONSTITUTION: A terminal extracts additional image signaling information and an additional image from a received non-real time stream(S110). The terminal extracts a reference image signaling information and a reference image from a received real-time stream(S120). The terminal creates stereoscopic content including the reference image and the additional image based on the relationship information(S130). The terminal reproduces the stereoscopic content by synchronizing the images based on time information included in synchronization information. [Reference numerals] (AA) Start; (BB) End; (S110) Additional images and additional image signaling information are extracted by receiving a non-real time stream; (S120) Standard images and standard signaling information are extracted by receiving a real time stream; (S130) Additional image signaling information and the creation of stereoscopic content based on the additional image signaling information
Abstract:
PURPOSE: A video encoding device and a method thereof are provided to separate a differential image block into non-border area and a border area base on border line within the differential image block, thereby increasing energy compaction. CONSTITUTION: A signal divider(131) divides a differential image block into the first area and the second area. Through DCT(Discrete Cosine Transform), a converting and encoding unit(133) performs conversion encoding of the first area. A quantization unit(135) quantize output of the conversion encoding unit in a frequency domain. A spatial area quantization unit(137) quantizes the second area in a spatial domain. By using the quantization unit and output of the space area quantization unit, an entropy encoding unit(180) performs entropy encoding.
Abstract:
PURPOSE: An encoding/decoding apparatus using unidirectional prediction is provided to the encoded capacity of image by efficiently encoding the image. CONSTITUTION: A partition unit(1210) partitions macroblock into a plurality of sub blocks. A uni-direction application determiner(1220) determines whether the same prediction mode is applied to the sub blocks. A prediction mode determiner(1230) determines a prediction mode of each sub block according to determination. A prediction mode encoder(1250) stores application information of the same prediction mode and the determined prediction mode.
Abstract:
본 발명은 전송 효율을 높이기 위한 다시점 파노라믹 콘텐츠 송/수신 시스템 및 그 방법에 관한 것으로, 카메라에서 획득되는 다시점 파노라믹 콘텐츠를 각각의 객체로 정의하고, 사용자에 의해 요청된 콘텐츠 및 이와 인접한 콘텐츠에 해당하는 객체들만을 장면으로 구성하여 사용자에게 실시간으로 제공함으로써, 다시점 콘텐츠의 전송 효율을 높이기 위한, 다시점 파노라믹 콘텐츠 송/수신 시스템 및 그 방법을 제공하고자 한다. 이를 위하여, 본 발명은 다시점 파노라믹 콘텐츠 송신 시스템에 있어서, 다시점 파노라믹 콘텐츠(이하, '콘텐츠'라 함)를 부호화하기 위한 영상 부호화 수단; 상기 영상 부호화 수단에 의해 부호화된 콘텐츠를 각각의 객체기술자로 정의하고 장면 이진 포맷 스트림과 IOD(Initial Object Descriptor)를 생성하며, 사용자로부터의 요청 시점과 상기 요청 시점과 인접한 시점에 해당하는 영상 스트림을 이용하여 장면을 생성하기 위한 장면 생성 수단; 상기 장면 생성 수단으로부터의 영상 스트림, 객체기술자 스트림, 및 장면 이진 포맷 스트림을 패킷화하기 위한 패킷화 수단; 및 상기 장면 생성 수단에 의해 생성된 IOD와 상기 패킷화 수단에 의해 패킷화된 영상 스트림, 객체기술자 스트림, 및 장면 이진 포맷 스트림을 다중화하여 전송하기 위한 다중화 수단을 포함한다. 다시점 콘텐츠, 전송 효율, 시점 콘텐츠 간 동기화, 장면 생성, 장면 구성, 렌더링
Abstract:
Provided is a method for performing motion compensated temporal filtering (MCTF)-based coding on a video sequence using the structure of adaptively divided group of pictures (GOP). The method includes the steps of, for each predefined 2