Abstract:
Disclosed is a method and device for transmitting multi-network environment adaptive media streaming. The method for transmitting media streaming according to one embodiment of the present invention comprises the steps of generating media data by encoding certain content to multiple hierarchies; separating the generated media data by each hierarchy; and streaming-transmitting, to a media receiving device, the media data separated by each hierarchy through multiple networks. [Reference numerals] (10) Media transmitting device;(14) Medial receiving device;(AA) Sub IP network n;(BB) Sub IP network 1;(CC) Main IP network
Abstract:
The present invention discloses technologies of packet level forward error correction encoding and decoding method and device, decoding method of digital broadcasting receiving system and digital broadcasting receiving device. According to such technologies, the forward error correction encoding method comprises the steps of separating a first header unit from an input packet stream; encoding a first payload unit of the separated packet stream according to the predetermined encoding rate to generate a second payload unit; generating a second header unit according to the encoding rate; and combining the first header unit, the second header unit and the second payload unit. [Reference numerals] (210) Header separating unit;(221) Block interleaver;(223) Organized encoder;(225) Block de-interleaver;(230) Header generating unit;(240) Header combining unit
Abstract:
The present invention relates to an interactive augmented broadcast service technology. According to the present invention, an apparatus for processing augmented broadcast content comprises: a broadcast content receiver for receiving a first reference signal which includes information for identifying broadcast content from an augmented broadcast transmitter and a target object in the broadcast content and composing augmented content for the target object and the broadcast content; an object identification unit for identifying the target object in the broadcast content by broadcast content analysis to which a video or audio analysis algorithm based on the first reference signal is applied; an augmented content acquisition unit for acquiring the augmented content for the target object identified by an augmented content storage server; and an augmented content composition unit for determining an augmented region on the basis of the first reference signal and composing the acquired augmented content in the augmented region. [Reference numerals] (110) Broadcasting content receiving unit;(130) Object identification unit;(150) Augmented content acquisition unit;(170) Augmented contents composition unit
Abstract:
The present invention provides a method for transmitting a MPEG media transport (MMT) packet using the structure of the MMT packet having extension information necessary to adaptively transmit a multi-layer video such as scalable video coding (SVC) to network environment in a media transport service based on an MMT system and the extension information, and an apparatus therefor.
Abstract:
PURPOSE: Meta-data preferential offering enrichment broadcast apparatus and a method thereof are provided to transmit the meta-data which is necessary for the access of the enrichment contents necessary for enrichment broadcast, when transmitting an enrichment broadcasting program, thereby ensuring the security of the enrichment contents in which the meta-data indicates. CONSTITUTION: A time collector (602) collects the time necessary for receiving the enrichment contents from a terminal, and provides at least a part of the meta-data showing the source information of the basic contents and the enrichment contents by considering the collected time. A controller (601) multiplexes and transmits the enrichment contents corresponding to the provided basic contents and the meta-data. When a part of the meta-data is provided from the time collector, the controller multiplexes the remaining partial meta-data. [Reference numerals] (600) Broadcast server; (601) Controller; (602) ΔT collector; (603) AR broadcast contents; (604) Multiplexing unit; (605) Transmission unit; (606) Timer
Abstract:
PURPOSE: An augmented audio service system and a method thereof are provided to supply a high quality audio service by using an audio output device of viewers without an extra speaker. CONSTITUTION: An image data server (110) provides image data to a display device (200). An audio data server (120) provides augmented audio data corresponding to an image outputted based on the image data to a plurality of audio output devices (300-1 to 300-n). The audio output devices output different audio signals augmenting the audio of the image based on the augmented audio data. [Reference numerals] (110) Image data server; (120) Audio data server; (210) Output unit; (220) Control unit; (300-2,300-n) Audio output device; (310) Audio reception unit; (320) Audio output unit; (330) Information reception unit
Abstract:
PURPOSE: An adaptable image encoding method and a recording medium which is legible with a computer are provided to improve image compression performance by adaptively selecting an encoding parameter of an encoding subject block. CONSTITUTION: A reference block for the encoding of a current block is determined by an encoder (S110). The encoder determines an encoding parameter of the reference block (S120). The encoder applies the motion information of the reference block to the current block so that the current block is encoded (S140). The encoder determines the property of the reference block based on the encoding parameter of the reference block (S130). [Reference numerals] (AA) Start; (BB) Finish; (S110) Determine a reference block; (S120) Determine an encoding parameter of a reference block; (S130) Determine the property of a reference block; (S140) Encoding the reference block which is an encoding subject
Abstract:
PURPOSE: An image encoding method using a prediction mode and a computer-readable recording medium thereof are provided to improve encoding efficiency by improving the accuracy of prediction by reducing a difference between an encoding target pixel value and a reference pixel value. CONSTITUTION: An encoder applies a vertical prediction mode to a first sub block (311) included in a macro block (310). The encoder applies the vertical prediction mode to a second sub block (320) included in the macro block. The encoder applies the vertical prediction mode to a third sub block (330) and a fourth sub block (340). Each line (331-334,341-344) is encoded by referring to a vertical direction.
Abstract:
PURPOSE: An image encoding device using a prediction mode is provided to reduce the capacity of an encoded image by efficiently encoding an image. CONSTITUTION: An intra estimating unit (213) performs the intra prediction of a first block, performs the intra prediction of a second block adjacent to the first block, performs the intra prediction of a third block adjacent to the bottom of the first block, and performs the intra prediction of a fourth block adjacent to the bottom right of the first block. The first, the second, the third, and the fourth blocks are predicted in one intra prediction mode. [Reference numerals] (202) Movement compensation unit; (210) Movement estimating unit; (211) Intra estimation selecting unit; (212) Unidirectional estimation selecting unit; (213) Intra estimating unit; (214) Image block information confirming unit; (215) Image block information analyzing unit; (216) Unidirectional estimation mode flag transmitting unit; (244) Filter; (253) Re-aligning unit; (254) Entropy encoder; (AA) F_m (present frame); (BB) F'_m-1 (reference frame); (CC) F'_m (restoration frame)
Abstract:
신드롬 부분 채널디코딩을 이용한 멀티홉 기반의 시스템 및 이의 동작 방법이 개시된다. 멀티홉 기반의 서버는 노드로부터 채널에러율을 수신하는 에러율 수신부와, 채널에러율을 이용하여, 굿풋(goodput)을 최대화하기 위한 패킷 크기를 결정하고, 결정된 패킷 크기를 갖는 패킷을 생성하는 패킷 생성부와, 채널에러율을 이용하여 생성된 패킷을 코딩하고, 코딩된 패킷을 노드로 전송하는 코딩부를 포함한다. 멀티홉, 채널에러율, 굿풋(goodput), 신드롬