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 block and the mean pixel value of the reference block; a residual signals generation unit generating residual 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:
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.
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 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 encoding and decoding methods for a single-view video or a multi-view video and apparatuses thereof. The multi-view encoding method includes performing motion and disparity estimation based on a base image, a supplementary image, and a reference image, generating residual data using the reference image and the motion and disparity estimated data, down sampling the residual data, and transforming and quantizing the down sampled residual data using a discrete cosine transformation (DCT) method.
摘要:
Provided are an apparatus and method for predictive coding/decoding for improving a compression rate of multiview video using one or two additional reference frame buffers. The predictive encoding apparatus includes: a multiview reference picture providing unit for providing a reference picture for a predictive encoding according to temporal and spatial GOP structure information; a prediction unit for creating a vector by predicting which part of the reference picture inputted from the multiview reference picture providing unit is referred by a picture to currently encode; a transforming and quantizing unit for obtaining a difference signal between the predicted signal inputted from the prediction unit and a picture signal to currently encode, transforming the obtained difference signal, quantizing the transformed signal, and compressing the quantized signal; and an entropy encoding unit for encoding the quantized signal and the vectors according to a predetermined scheme and outputting the encoded signal.
摘要:
The present invention relates to three-dimensional video processing apparatus and method using MPEG-4 object descriptor information and structures. The three-dimensional video processing apparatus and method that can support a three-dimensional video service smoothly to thereby provide a sense of reality and a cubic effect in an MPEG-4-based system by suggesting a three-dimensional video object descriptor structure and providing to a client an object descriptor, which includes information on kind of three-dimensional video, number of viewpoints, number of media streams and a plurality of display methods; and a method thereof.
摘要:
Provided is a system and method for broadcasting stereoscopic video data to users on the Internet based on Moving Picture Experts Group (MPEG)-4. The system includes: an encoding server for receiving stereoscopic video data, audio data, and Object Descriptor/Binary Format for Scene (OD/BIFS), which is information for controlling a content, and encoding the data into elementary stream (ES) having an MPEG-4 structure; a web server for receiving from the client any one among two-dimensional video display mode, field-shuttering video display mode and frame-shuttering video display mode; and a streaming server for generating a RTP (RTP) packet for real-time data transmission on the Internet by multiplexing the ES based on the display mode inputted into the web server, and transmitting the RTP packet to the client.
摘要:
Provided is a five sensory data synchronizing and transmitting apparatus and method, and an actual-feeling multimedia data providing system and method using the same. The five sensory data synchronizing and transmitting apparatus and method forms packets by describing vibration, an odor and a taste expressed in video/audio based on touch, odor and taste data descriptors and synchronizes the touch/odor/taste packets with video/audio packets on a frame basis; and then, the actual-feeling multimedia data providing system and method demultiplexes the received packets transmitted from the five sensory data synchronizing and transmitting apparatus into video data, audio data, touch data, odor data and taste data and transmits them to corresponding devices to thereby provide a user with an actual-feeling multimedia service.
摘要:
Provided is a system and method for broadcasting stereoscopic video data to users on the Internet based on Moving Picture Experts Group (MPEG)-4. The system includes: an encoding server for receiving stereoscopic video data, audio data, and Object Descriptor/Binary Format for Scene (OD/BIFS), which is information for controlling a content, and encoding the data into elementary stream (ES) having an MPEG-4 structure; a web server for receiving from the client any one among two-dimensional video display mode, field-shuttering video display mode and frame-shuttering video display mode; and a streaming server for generating a RTP (RTP) packet for real-time data transmission on the Internet by multiplexing the ES based on the display mode inputted into the web server, and transmitting the RTP packet to the client.