Abstract:
A method for supporting random access of MPEG data comprises the steps of: obtaining at least one access unit including media data, which is coded through a process including capsulation and packetization; generating at least one media processing unit (MPU) by grouping the at least one access unit; determining an initialization flag which indicates whether the at least one access unit in the at least one MPU includes all data required for initializing a decoding process; and inserting the initialization flag into at least one header of the MPU.
Abstract:
스테레오스코픽 비디오를 구성하는 적어도 두 개의 시점의 데이터의 각각이 시간 차를 두고 수신된다. 영상 처리 장치의 저장부는, 상기 두 개의 시점의 데이터 중 제1 시점 비디오 데이터가 수신되면, 이를 이용하여 모노스코픽 비디오를 생성한다. 그리고, 상기 제1 시점 비디오 데이터를 저장하고, 추후 상기 제1 시점 비디오 데이터에 대응하는 제2 시점 비디오 데이터가 수신되는 경우, 상기 제1 시점 비디오 데이터 및 상기 제2 시점 비디오 데이터를 합성하여 스테레오스코픽 비디오를 생성하여 디스플레이 할 수 있다.
Abstract:
PURPOSE: A receiving device for receiving multiple signals through different paths and a signal processing method thereof are provided to receive multiple signals transmitted through different networks and to synchronize the multiple signals. CONSTITUTION: A first receiving unit (210) receives a first signal through a radio frequency (RF) broadcast network. A second receiving unit (220) receives a second signal through an internet protocol (IP) communications network. A signal processing unit (230) detects synchronization type information from at least one signal of the first signal and the second signal. The signal processing unit selects synchronization information corresponding to the synchronization type information in the synchronization information included in the first signal and the second signal. The signal processing unit synchronizes the first signal and the second signal according to selected synchronization information. [Reference numerals] (100-1) Transmitting unit 1; (100-2) Transmitting unit 2; (210) First receiving unit; (220) Second receiving unit; (230) Signal processing unit; (AA) RF broadcast network; (BB) IP communication network
Abstract:
PURPOSE: A transceiving device for 2D mode play in a digital terminal, a 2D mode play device in the digital terminal, and a method thereof are provided to selective supply a higher quality image from among two eye images by using additional 3D-related information when playing a received 3D program in a 2D form. CONSTITUTION: A generating unit(910) generates additional 3D-related information. The additional 3D-related information includes identification information indicating a proper image for a 2D mode from among additional images and reference images composing a 3D program. An identification information generating unit(915) of the generating unit generates the identification information based on a format type of stereoscopic content. A providing unit(930) provides the additional 3D-related information to a 3D terminal. [Reference numerals] (910) Generating unit; (915) Identification information generating unit; (930) Providing unit
Abstract:
PURPOSE: A signaling method for a stereoscopic video service and an apparatus capable of using the method are provided to offer a stereoscopic service by using additional descriptor information. CONSTITUTION: An encoding device determines an encoded stream type(S200). The encoding device determines a reference image stream of an elementary stream(S210). The encoding device determines whether the elementary stream is a left image stream or a right image stream(S220). The encoding device determines the upsampling information of additional image(S230). The encoding device determines the information of a subsampling line(S240). [Reference numerals] (AA) Start; (BB) End; (S200) Determine an encoded stream type; (S210) Determine a reference image stream of an elementary stream; (S220) Determine whether or not the elementary stream is a left image stream or a right image stream; (S230) Determine upsampling information of an additional image; (S240) Determine information of a subsampled line
Abstract:
PURPOSE: A transmitting method and an apparatus of stereoscopic image information are provided to offer various types of stereoscopic image services. CONSTITUTION: A stereoscopic image information transmitter comprises a signaling table(S110). The apparatus transmits the image information including the comprised signaling table information and the image data information to an image information receiver(S120). The signaling information includes the service type information in which the service type of a video stream indicates the recognition of a two-dimensional monoscopic service or the recognition of a three-dimensional stereoscopic service. [Reference numerals] (AA) Start; (BB) End; (S110) Comprise a signaling table; (S120) Transmit image information
Abstract:
본 발명은 서로 다른 시점(viewpoint)을 가지는 복수의 카메라가 각기 촬영한 다시점(multi-viewpoint) 동영상 데이터들을 부호화하기 위하여 적응적으로 움직임 벡터를 예측하는 방법 및 장치에 관한 것으로서, 본 발명은 현재 블록의 인접 블록 중 현재 블록이 시간적 또는 공간적으로 참조하는 블록과 동일한 블록을 참조하는 블록만을 검출하는 블록 검출부; 및 블록 검출부에서 검출된 블록의 움직임 벡터를 기초로 현재 블록의 예측 움직임 벡터값을 구하는 적응적 예측부를 포함하여 적응적으로 움직임 벡터를 예측함으로써 압축률을 개선한다.
Abstract:
PURPOSE: A device for providing a 3D service by interlinking a separately transmitted additional image with a reference image transmitted in real time and a method thereof are provided to form a high definition 3D service by inserting a signaling plan for a reference relation between two images and time information. CONSTITUTION: A real time reference image stream is decoded as a reference image(10) through a reference image generator(130). The real time reference image stream is delivered to a 3D play unit(160). Interlinking information and synchronization information in the real time reference image stream are delivered to a reception and storage unit(150). The reception and storage unit delivers a file or an additional image-related stream to be interlinked with the reference image and an additional image(20) synchronized with the reference image to the 3D play unit through the interlinking information and the synchronization information. [Reference numerals] (10) Reference image; (100) Real time reference image stream generating unit; (110) Additional image and content transmission unit; (120) MPEG-2 TS analyzer; (130) Reference image generator; (140) Additional image analyzing unit; (150) Reception and storage unit; (160) 3D play unit; (20,GG) Additional image; (AA) 3D initiation display screen; (BB,EE) Interlinking information; (CC,FF) Synchronization information; (DD) Reference image
Abstract:
PURPOSE: A packet transmission device and method, and a packet reception device and method are provided to efficiently perform synchronization of packet transmitted through an MPEG-2 system or RTP without opposing the existing standard. CONSTITUTION: A packet transmission device(10) includes an audio encoder(110), an audio buffer(120), a video encoder(130), a video buffer(140), an MMT packetization unit(150) and an STC(System Time Cock)(160). The audio encoder encodes an audio block of contents. The audio buffer outputs audio data with a constant rate. The video encoder generates a video stream by encoding pictures. The video buffer stores an encoded video stream. The MMT packetization unit generates an MMT packet after packetizing a video stream and an audio stream corresponding to the video stream. The STC is a master clock of the video encoder and audio encoder for a program. [Reference numerals] (110) Audio encoder; (120) Audio buffer; (130) Video encoder; (140) Video buffer; (150) MMT packetization unit; (20) IP network; (30) Receiving device; (AA) i-th picture input; (BB) MMT buffering delay