摘要:
Provided are an apparatus and method for coding and decoding a multi object audio signal with multi channel. The apparatus includes: a multi channel encoding means for down-mixing an audio signal including a plurality of channels, generating a spatial cue for the audio signal including the plurality of channels, and generating first rendering information including the generated spatial cue; and a multi object encoding unit for down-mixing an audio signal including a plurality of objects, which includes the down-mixed signal from the multi channel encoding unit, generating a spatial cue for the audio signal including the plurality of objects, and generating second rendering information including the generated spatial cue, wherein the multichannel encoding unit generates a spatial cue for the audio signal including the plurality of objects regardless of a Coder-Decoder (CODEC) scheme the limits the multi channel encoding unit.
摘要:
Provided is a method and apparatus for decoding a multi-object audio signal. The apparatus comprises: a side information bitstream input unit configured to receive the side information bitstream; a spatial cue information extractor configured to extract spatial cue information based on the side information bitstream; a preset information extractor configured to extract preset information and default preset information based on the side information bitstream; and a decoder configured to decode the multi-object audio signal using at least one of the spatial cue information, the preset information and the default preset information. The side information bitstream includes a header region and a frame region. The frame region includes the preset information and the header region includes the default preset information for using at least one of the preset information and the default preset information for rendering the multi-object audio signal corresponding to the frame region. The preset information includes a layout of a playback system to be a mono system, a stereo system or a multi-channel system, an audio object location and an audio object level.
摘要:
Provided are a method and an apparatus for improving resolution in comparison with lowering resolution of an original image and increasing a compression rate in comparison with directly compressing an original image based on information of the original image. The method includes the steps of subtracting a pixel value of a reference image from a pixel value of an image to be encoded to thereby create a residue signal, lowering resolution by down-sampling the residue signal, and encoding the down-sampled residue signal.
摘要:
A method of and apparatus for encoding and decoding a signal by illumination change compensated motion estimation are provided. The apparatus for encoding a signal by illumination change compensated motion estimation includes: an illumination change compensation unit performing compensation for an illumination change by performing a differential calculation between each pixel value of a current block and the means pixel value of a reference block indicated by a motion vector of the current blok and the mean pixel value of the reference block; a residual signals generation unit generating redisual signals based on the blocks in which illumination change compensation is performed; and an illumination changed amount prediction unit performing differential pulse code modulation (DPCM) based on the illumination change amount prediction value by reflecting the closeness between neighboring blocks in which illumination change occurs.
摘要:
The present research relates to description supporting a targeting scheme, more particularly, to an extended description structure supporting a targeting scheme and a TV-Anytime service providing method and system employing the same based on Moving Picture Experts Group 21 (MPEG-21) Usage Environment Description (UED) tools. The TV-Anytime service providing system employing the extended description structure includes a service providing apparatus for generating package metadata including user information and usage environment information; and a user device for acquiring the package metadata including user information and usage environment information from the service providing apparatus through diverse access networks.
摘要:
Provided are a data broadcast receiving apparatus that can be easily connected with mobile communication terminals of diverse access specifications by easily upgrading middleware or plug-in software in digital broadcast mobile and fixed receiving environments, and a method thereof. The data broadcast receiving apparatus includes a demultiplexer for separating signals transmitted from the outside into signals of a kind; a controller for controlling elements of the data broadcast receiving apparatus, receiving and outputting contents separated in the demultiplexer; a download processor for receiving downloadable data divided in the demultiplexer, determining the kind of the downloadable data, and performing upgrade by downloading the downloadable data; and a mobile terminal accessing unit for accessing to a mobile communication network based on the downloadable data.
摘要:
Provided is a metadata structure for storing and re-producing stereoscopic data and a method for storing a stereoscopic content file based on the metadata structure. The stereoscopic content file storing method includes storing streams of the stereoscopic contents; and, when the stereoscopic content has more than two elementary streams, storing information for dividing the elementary streams into a main track and a supplementary track.
摘要:
Provided are an apparatus and method for coding and decoding a multi-object audio signal. The apparatus includes a down-mixer for down-mixing the multi-object audio signals having different channels to one down mixed audio signal and extracting header information and supplementary information including spatial cue information for each of the multi-object audio signals having different channels, a coder for coding the down mixed audio signal, and a supplementary information coder for generating the supplementary information as a bit stream. The header information includes identification information for each of the multi-object audio signals having different channels and channel information for each of the multi-object audio signals having different channels.
摘要:
Provided is an apparatus and method for coding and decoding multi-object audio signals with various channels and providing backward compatibility with a conventional spatial audio coding (SAC) bitstream. The apparatus includes: an audio object coding unit for coding audio- object signals inputted to the coding apparatus based on a spatial cue and creating rendering information for the coded audio-object signals, where the rendering information provides a coding apparatus including spatial cue information for audio-object signals; channel information of the audio-object signals; and identification information of the audio-object signals, and used in coding and decoding of the audio signals.