摘要:
Provided is an apparatus and method for encoding/decoding moving pictures based on adaptive scanning. The moving picture apparatus and method can increase a compression rate based on adoptive scanning by performing intra prediction onto blocks of a predetermined size, and scanning coefficients acquired from Discrete Cosine Transform (DCT) of a residue signal and quantization differently according to the intra prediction mode. The moving picture encoding apparatus includes: a mode selector for selecting and outputting a prediction mode; a predictor for predicting pixel values of pixels to be encoded of an input video based on the prediction mode to thereby output a residue signal block; a transform/quantization unit for performing DCT onto the residue signal block and quantizing the transformed residue signal block; and an encoder for adaptively scanning and encoding the quantized residue signal block based on the prediction mode.
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 are a method and apparatus for displaying lightweight applications scene representation (LASeR) content. A LASeR markup language (ML) that is based on a LASeR binary stream or a LASeR extensible markup language (XML) is parsed so as to generate a LASeR document object model (DOM). A LASeR application program interface (API) is used to generate a LASeR DOM object tree. A LASeR player accesses the LASeR DOM to display LASeR DOM scene information.
摘要:
Provided is a method for controlling synchronizing downmix signals and MPEG surround side information signals by controlling a delay according to the kind of downmix audio signals in an MPEG surround decoder. When multi-channel audio signals are restored using an HE-AAC decoder and a low-power MPEG surround decoder and complex QMF signals outputted from the HE-AAC decoder are used as downmix signals, a delay unit compensates for a delay caused in a real-to-complex converter. Anther delay unit delays spatial parameters to compensate for a delay caused in QMF and Nyquist banks when time-domain downmix signals are used. Also, when multi-channel audio signals are restored using an HE-AAC decoder and a high-quality MPEG surround decoder and complex QMF signals outputted from the HE-AAC decoder are used as downmix signals, a delay unit compensates for a delay caused in a real-to-complex converter.
摘要:
Provided is a scalable video coding method and apparatus. Motion data of a high-quality fine grain scalability (FGS) layer is used for interlayer coding in order to remove redundancy between coarse grain scalability (CGS) layers or layers having different spatial resolutions, and information indicating that data of the FGS layer has been used for interlayer motion prediction is inserted for Moving Picture Expert Group (MPEG)-4 scalable video encoding. A bitstream extractor checks the information and performs extraction to maintain the data of the FGS layer. MPEG-4 scalable video decoding is performed using the information. By using the FGS layer, interlayer redundancy can be efficiently removed, thereby improving encoding efficiency.
摘要:
Provided is a personalized data broadcasting service, more particularly, a metadata scheme for a personalized data broadcasting service, a data broadcasting service providing method using the metadata scheme, and a system thereof . A metadata forming method of the present research includes the steps of : a) generating an interactive content service ( InteractiveContentService ) element which describes whether a data broadcasting is a uni-directional service or a bi-directional service; b) generating a rendering style (RenderingStyle) element which describes properties of the data broadcasting displayed on a screen of a user; c) generating an update cycle (UpdateCycle) element which describes a content update period of the data broadcasting; and d) generating a package, an item or a component on the data broadcasting service information including the three elements generated above.
摘要:
Provided is a data structure for reporting an Event that occurs upon the use of a Digital Item (DI), an Event Reporting system using the data structure, and a method thereof. The Event Reporting system of the present invention for requesting and processing report on an Event that occurs upon a use of a digital item includes: an Event Report Request data processing means for creating an Event Report Request data which requests a report on an Event Report data; and an Event Report data processing means for creating and transmitting an Event request in response to the Event Report Request data transmitted from the Event Report Request data processing means to perform an Event Reporting.
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.