Abstract:
The present invention discloses an apparatus and a method for transmitting a packet and an apparatus and a method for receiving a packet in an MPEG media transport (MMT) system. The apparatus for transmitting the packet transmits the packet from the MMT system, and comprises an MMT packetizing portion for generating an MMT packet based on an inputted presentation unit, wherein the MMT packetizing portion generates the MMT packet by comprising at least one of presentation time stamp (PTS) information, which is timing information that indicates a presentation time of the presentation unit to a header of an E layer, information for measuring a network jitter to a header of a D layer, or information for media synchronization.
Abstract:
The present invention relates to a heterogeneous network-based linked broadcast content transmitting/receiving system and method. A transmission system generates a basic content stream on basic content constituting broadcast content and transmits the generated basic content stream to a terminal through a broadcast network, and also generates an additional content stream on additional content linked to the basic content and transmits the generated additional content stream to a terminal through a communication network. At least one of linkage playback information on the basic content and linkage playback information on the additional content is further transmitted to the terminal. Additionally, a reception terminal receives the basic content stream, the additional content stream, and the linkage playback information, and then synchronizes the basic content with the additional content and plays them back in order to playback broadcast content in real time.
Abstract:
The present invention relates to a method of generating contents information for managing contents including stereoscopic contents being two-dimensional contents and three dimensional contents, and an apparatus for managing contents, the method including the steps of, when there is a scene change of contents, adding a second field including information on each of a plurality of scenes corresponding to a plurality of types, respectively, to the contents information.
Abstract:
The present invention discloses an apparatus and a method for transmitting a packet and an apparatus and a method for receiving a packet, based on a timing model of an MPEG media transport (MMT) system, which is integrated by considering the advantages of a timing model in an MPEG-2 system and an RTP timing model. The apparatus for transmitting the packet transmits the packet from the MMT system, and comprises: a video stream that is encoded based on an input picture; and an MMT packetizing portion for generating the MMT packet by packetizing an audio stream that corresponds to the video stream, wherein the MMT packetizing portion generates the MMT packet by including synchronization information, which is generated based on a system time clock (STC) that is a master program clock for a video and audio encoder, and an MMT buffering delay. As a result, synchronization of various media sources, measurement of a packet arrival jitter, as well as STC clock locking of the apparatus for transmitting and the apparatus for receiving the MMT can be achieved.
Abstract:
Disclosed are a transmission device and method, and a reception device and method, for a program-linked stereoscopic broadcasting service. The transmission device relates to a transmission device for a program-linked stereoscopic broadcasting service, and comprises: a real time stream encoder for encoding a reference image and generating a real time stream; a non-real-time (NRT) stream encoder for generating an NRT stream on the basis of an additional image; an image synchronization information generator for generating a stream of a service signaling and image synchronization information - service signaling and image synchronization information include event information table and program map table - for synchronization of the reference image and the additional image, on the basis of 3D contents synchronized information; and a re-mutiplexer for generating a program-linked stereoscopic broadcasting stream by multiplexing the real time stream, the NRT stream, the service signaling, and the image synchronization information stream.
Abstract:
Provided are a method and a device for transmitting a broadcasting service, for signaling non-real-time (NRT) 3D broadcasting contents. The device for transmitting a broadcasting service comprises: an NRT contents encoder for encoding stereoscopic image contents including a reference image and an additional image, and generating an NRT stream; an NRT signaling information encoder for generating an NRT signaling information including at least one of a service map table (SMT) corresponding to the contents, and a non-real-time-information table (NRT-IT); and a multiplex unit for multiplexing the NRT stream and the NRT signaling information, and transmitting to a reception device. Thus, the present invention enables the provision of contents even when the reference image and the additional image are encoded in a dual stream format.
Abstract:
Provided are a scalable video coding and decoding apparatus and method for multiview video. The apparatus includes a basic scalability video encoder separating one basic video to video frames and performing scalable video coding through temporal and spatial prediction, and multiple extended scalability video encoders for receiving an own video and one or more adjacent videos as reference videos captured simultaneously, separating the received videos in video frames, performing scalable video coding for the separated low resolution image frame through temporal and spatial prediction with reference to the adjacent video frames at same temporal axis as well as own adjacent frame, and performing scalable video coding for the separated high resolution video frame through temporal and spatial prediction referring to lower layers of the adjacent video frames at same temporal axis as well as an own lower layer.
Abstract:
Provided is a five sensory data synchronizing and transmitting apparatus and method, and an actual-feeling multimedia data providing system and method using the same. The five sensory data synchronizing and transmitting apparatus and method forms packets by describing vibration, and odor and a taste expressed in video/audio based on touch, odor and taste data descriptors and synchronizes the touch/odor/taste packets with video/audio packets on a frame basis; and then, the actual-feeling multimedia data providing system and method demultiplexes the received packets transmitted from the five sensory data synchronizing and transmitting apparatus into video data, audio data, touch data, odor data and taste data and transmits them to corresponding devices to thereby provide a user with an actual-feeling multimedia service.
Abstract:
Provided are an image magnification apparatus and method for three-dimensional display images. A multi-view image magnification apparatus includes: a region designation detection unit for detecting detection regions corresponding to the magnification regions of three-dimensional display images from original view images; a magnification ratio determination unit for determining the magnification ratios of the magnification regions; and a partial multiplexing unit for multiplexing non-detection regions except for the detection regions of the original view images according to a predetermined resolution and multiplexing the detection regions according the resolution which is different from the resolution of the non-detection regions on the basis of the magnification ratios. The present invention can magnify the images without lowering the resolution in a three-dimensional display.
Abstract:
Provided are a method and an apparatus for transmitting stereoscopic video information capable of providing a stereoscopic video service. The method for transmitting stereoscopic video information comprises the steps of: creating a signaling table including video-related information; and transmitting the signaling table and the video, wherein the signaling table can include stream type information, a stereoscopic program information descriptor and/or a stereoscopic additional video stream descriptor, of the image