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
Abstract:
PURPOSE: A high speed mode determining method in coding a scalable video and an apparatus thereof are provided to increase the coding efficiency of the scalable video. CONSTITUTION: A coded block pattern (CBP) value of a luma component is derived about the 16x16 mode of a coding object picture (S630). First candidate modes for the coding object picture are determined according to the derived CBP value (S640). The final prediction mode for the coding object picture is determined based on the determined first candidate modes (S690). The coding object picture is a B picture within an enhancement layer. [Reference numerals] (AA) Start; (S610) Is a current picture a B-picture; (S620) Search a motion about a 16 x 16 mode; (S630) CBP calculate about the luma component of the 16 x 16 mode; (S640) Select a first candidate mode using the CBP information of the 16 x 16 mode; (S650) Determine a reference picture; (S660) Determine a second candidate mode using reference picture information; (S670) Perform rate-distortion calculation about the second candidate mode; (S680) Determine a final mode; (S690) Perform motion search and rate-distortion calculation about the entire mode
Abstract:
PURPOSE: A recording medium readable with computer recorded thereon a program for executing a decoding method through increasing bit depth capable of reducing system complexity reduces bit depth of each brightness and color component in encoding of a video, adoptively selects and performs the reduction of the bit depth in macro block unit or slice, and thus increases encoding efficiency. CONSTITUTION: A decoding device determines if bit depth of an input signal was reduced (S710). In case the bit depth of the input signal is reduced than bit depth of an original signal, the decoding device increases the bit depth of the input signal (S720). The decoding device uses the input signal with the increased bit depth and restores the image. [Reference numerals] (AA) Start; (BB) No; (CC) Yes; (DD) End; (S710) Is the bit depth of an input signal is reduced?; (S720) Increase the bit depth of the input signal
Abstract:
적응적 비디오 전송을 위한 코딩 레이트 조정 및 차등 오류 보호 적용 방법과, 그를 이용한 비디오 전송/수신 장치를 제안한다. 본 발명의 실시 예에 따른 비디오 전송 장치는, 비디오 수신 장치로부터 피드백된 채널용량 추정값을 다음 채널구간의 채널용량으로 예측하고, 상기 예측된 채널용량 내에서 비디오코딩 레이트 및 채널코딩 레이트를 조정하는 코딩레이트 조정부와, 비디오 프레임들을 상기 조정된 비디오 코딩 레이트로 비디오 인코딩해서 비디오 패킷으로 생성하는 비디오 인코더 및 상기 비디오 패킷의 길이와 상기 비디오 패킷에 포함된 상기 비디오 프레임의 종류를 고려해서 차등 오류 보호하고, 상기 차등 오류 보호된 비디오 패킷을 상기 조정된 채널 코딩 레이트로 채널 인코딩해서 비트 스트림을 생성하는 순방향 에러 정정(FEC) 인코더를 포함할 수 있다. 적응적 비디오 전송, 코딩 레이트, 차등 오류 보호, UEP
Abstract:
PURPOSE: A device for encoding an intra-image based on reference block waveform information and a decoding device thereof are provided to encode a specific pixel with excellent image quality by using the same amount of bits. CONSTITUTION: A waveform information generation unit(220) selects a plurality of reference pixels among pixels which are adjacent to an object image block and generates waveform information of a reference image block based on a difference between the selected reference pixels. An encoder(230) encodes an image included in the object image block based on the waveform information of the reference image block. [Reference numerals] (210) Input image division unit; (220) Waveform information generation unit; (230) Encoder
Abstract:
PURPOSE: A contents search device using viewing preference information is provided to offer customized contents by searching for broadcasting contents in consideration of viewing preference information generated from a viewing history. CONSTITUTION: An interface (101) extracts a keyword search statement from a contents search request. First database (107) stores viewing preference information generated from a viewing history. Second database (109) stores broadcasting contents. A processor (103) searches broadcasting contents related with the keyword search statement in consideration of the viewing preference information from the second database. [Reference numerals] (101) Interface; (103) Processor; (107) First database; (109) Second database
Abstract:
PURPOSE: A media content transmitting method for providing augmented media content by using a graphic object and a device thereof, a receiving method, and a device thereof are provided to supply funny factors by supplying the augmented media content corresponding to an event. CONSTITUTION: A receiving unit(520) receives metadata including graphic object-related information and event expression information. An event includes a specific scene, a specific situation, and a specific phenomenon in video content or broadcast content. A metadata analyzing unit analyzes the metadata. A designating unit(550) designates a graphic object(564) which is matched with each event in the video content or broadcast content based on the metadata. A display unit(560) plays the graphic object. [Reference numerals] (510) Broadcasting network, Communication network; (512) Internet; (520) Receiving unit; (530) Decoding unit; (540) Input unit; (550) Designating unit; (560) Display unit; (562) Broadcasting contents or video contents; (564) Graphic object; (570) User interface
Abstract:
PURPOSE: A system for providing targeting augmented content, a method thereof, a device thereof, a method for registering augmented content, and a device thereof are provided to enable a specific viewer to display desired information to other targeted viewers in a predetermined section of a broadcast program and predetermined time. CONSTITUTION: An augmented metadata generation device generates augmented metadata(S310). A second broadcast terminal analyzes the augmented metadata and requests augmented content to an augmented content providing device based on the augmented metadata(S360,S370). The augmented content providing device transmits the augmented content to the second broadcast terminal(S380). The second broadcast terminal outputs broadcast content provided from a broadcast content providing device and the augmented content(S390). [Reference numerals] (210) Broadcast content providing device; (211) Metadata generation device; (220) First broadcast terminal; (230) Augmented content providing device; (240) Second broadcast terminal; (S310) Generating augmented metadata; (S320,S330) Transmitting augmented metadata; (S340,S380) Transmitting augmented contents; (S350) Transmitting augmented metadata and broadcast contents; (S360) Analyzing augmented metadata; (S370) Requesting augmented contents; (S390) Outputting contents;
Abstract:
영상 부호화 방법 및 장치가 제공된다. 슬라이스 내의 블록에 대한 영상 부호화를 수행하는 경우, 슬라이스의 복원된 블록 중 적어도 하나의 블록이 참조 블록으로 결정된다. 그러면, 상기 참조 블록의 부호화 파라미터가 판별되고, 상기 부호화 파라미터에 기반하여 부호화 대상 블록이 적응적으로 부호화된다.