Abstract:
Provided is a multi-view video coding/decoding method and apparatus which uses coded and decoded multi-view videos to code and decode depth information videos corresponding to the multi-view videos. The multi-view video coding method includes: controlling the scales of first and second depth information videos corresponding to a multi-view video such that the scales are equalized; and coding the second depth information video, of which the scale is controlled, by referring to the first depth information video of which the scale is controlled.
Abstract:
Provided is an inter-frame wavelet coding apparatus that can reduce the computation complexity of a decoder by adjusting a decomposition level and a filter length based on the information amount of a frame during wavelet transform and a method therefor. The inter-frame wavelet coding apparatus includes: a Motion Compensated Temporal Filtering (MCTF) unit for computing a motion vectors of a group of pictures (GOP) and filtering the GOP with respect to the temporal axis, to thereby obtain filtered frame; a wavelet transforming unit for performing spatial wavelet transform on the filtered frame and outputting a wavelet coefficient; a quantization unit for quantizing the wavelet coefficient; an entropy coding unit for entropy-coding the motion vector computed in the MCTF unit and the quantized wavelet coefficient, to thereby generate an entropy-coded bit stream; and a wavelet filter managing unit for selecting a decomposition level and a filter length for the wavelet transforming unit based on motion estimation information of the GOP video computed in the MCTF unit, wherein the decomposition level and the filter length are included in the entropy-coded bit stream.
Abstract:
The present invention relates to a method and an apparatus for generating an additional information bit stream of a multi-object audio signal. The apparatus for generating an additional information bit stream of a multi-object audio signal according to the present invention includes a spatial cue information input unit for taking, as an input, spatial cue information generated from a multi-object audio signal encoding device, a preset information input unit for taking, as an input, preset information for a multi-object audio signal, and an additional information bit stream generating unit for generating an additional information bit stream by using the spatial cue information and the preset information. The additional information bit stream includes a header region and a frame region. The preset information is included in the frame region. The apparatus of the present invention is advantageous as it is capable of changing set audio scene information in accordance with the idea of an editor or a sound engineer even during reproduction of a multi-object audio signal because preset information is included in the frame region of the additional information bit stream generated during encoding of the multi-object audio signal.
Abstract:
Provided is a method for storing stereoscopic contents. The method includes storing stereoscopic video media information related to fragment information of the stereoscopic contents as metadata information required for reproducing the stereoscopic contents, and storing elementary streams of the stereoscopic contents.
Abstract:
Apparatus and method for adapting graphics contents and system therefore is provided. The apparatus and method provide the best experience of digital contents a user by adapting the digital contents to the user's graphics presentation preference. The apparatus for adapting graphics contents includes a graphics usage environment management unit and a graphics adaptation unit.
Abstract:
Provided is a multi-view video coding/decoding method and apparatus which uses coded and decoded multi-view videos to code and decode depth information videos corresponding to the multi-view videos (301 ). The multi-view video coding method includes: controlling the scales of first (503) and second depth information videos corresponding to a multi-view video such that the scales are equalized; and coding the second depth information video, of which the scale is controlled, by referring to the first depth information video (503) of which the scale is controlled.
Abstract:
In a device for editing and authoring object-based AV (audio and visual) contents using the MPEG-4 method, an object-based MPEG-4(moving picture experts group 4) contents editing and authoring device (200) comprises: an extensible description generator (120) for receiving either of an MPEG-4 textual format or internal data structure information of object-based MPEG-4 contents, and MPEG-7(moving picture experts group 7) descriptions of the MPEG-4 contents, and generating an XML (extensible markup language) based textual format file including the MPEG-7 descriptions; an extensible description/binary converter for receiving the XML based textual format file including the MPEG-7 descriptions generated by the extensible description generator (120), and generating them as a binary file; and an XML based contents storage unit (110) for storing the XML based textual format file generated by the extensible description generator (120) and the binary file generated by the extensible description/binary converter.
Abstract:
A water ring scanning apparatus and method, and an apparatus and method for encoding/decoding video sequences using the same are disclosed. A water ring scanning apparatus includes: a preferential scan unit for scanning information on a water ring origin point (water-ring (0)) in an image frame, which is a most significant bit of the image frame to be preferentially scanned; a scan location decision unit for deciding a location of i th generated water ring (water-ring(i)), which is a rectangular-shape ring surrounding the water ring origin point; and a scan unit for scanning information on the location of the i th generated water ring.
Abstract:
Decodificador de Moving Picture Experts Group (MPEG) surround de alta calidad para generar señales deaudio multicanal usando un flujo de bits de información anexa y señales de mezcla reducida, en el que lasseñales de mezcla reducida son al menos una de entre un dominio de filtro espejo en cuadratura (QMF)real, un dominio QMF complejo y un dominio de tiempo, comprendiendo el decodificador:un banco de análisis de QMF (601) para realizar análisis de QMF en señales de mezcla reducida deldominio de tiempo; una unidad de retardo (602) para aplicar un retardo introducido en una conversión real a complejo de bajapotencia a las señales de salida producidas a la salida del banco de análisis de QMF (601) y a las señalesde mezcla reducida del dominio QMF complejo; y un banco de filtros de análisis de Nyquist (603) para realizar un análisis de Nyquist a las señales retardadasy a las señales de entrada residuales QMF.
Abstract:
The present invention relates to extend metadata for providing a digital broadcast program service to diverse kinds of terminals, and a system and method for providing an adaptive program service to the terminals by using t he extended metadata. The system and method performs integrated management of resource information suitable for a combination of all (terminal, program an d user) conditions of the personal terminal, manages resource-related information separately from temporal/spatial location information, and thus provides an adaptive program service by using extended metadata and recomposing an adaptive scene for a personal terminal so as to provide the digital broadcast service adaptively to diverse terminal environments on a home network. The extended metadata include: segmentation metadata including description information on a significant segment that forms the broadcast program; and resource description metadata including description information on lower composition resources of the segment in order to provide a broadcas t program to the diverse kinds of terminals.