Abstract: The present invention relates to a method and an apparatus for interlayer prediction, and the method for interlayer prediction, according to the present invention, comprises the steps of: deciding whether to apply an interlayer prediction to an enhancement layer; and performing a prediction on a current block of the enhancement layer based on reference information that is generalized and generated from a reference picture, which is decoded, of a reference layer, when the interlayer prediction is applied, wherein the reference layer information can be encoding information of a reference block, which corresponds to a current block of the enhancement layer, from the reference layer, and residual information.

Abstract: A method and apparatus for processing a video signal according to the present invention derives a first prediction value of a chrominance block using a sample of a luminance block, calculates a compensation parameter based on a predetermined reference area, derives a second prediction value of a chrominance block, and reconstructs a chrominance block based on a second prediction value of a chrominance block.

Abstract: An encoding apparatus and a decoding apparatus in a transform between a Modified Discrete Cosine Transform (MDCT)-based coder and a different coder are provided. The encoding apparatus may encode additional information to restore an input signal encoded according to the MIDCT-based coding scheme, when switching occurs between the MDCT-based coder and the different coder. Accordingly, an unnecessary bitstream may be prevented from being generated, and minimum additional information may be encoded.

Abstract: The present invention relates to an image encoding and decoding technique, and more particularly, to an image encoder and decoder using unidirectional prediction. The image encoder includes a dividing unit to divide a macro block into a plurality of sub-blocks, a unidirectional application determining unit to determine whether an identical prediction mode is applied to each of the plurality of sub-blocks, and a prediction mode determining unit to determine a prediction mode with respect to each of the plurality of sub-blocks based on a determined result of the unidirectional application determining unit.

Abstract: Provided is a virtual costume fitting system including: a data input unit that receives a three-dimensional (3D) body model and a costume model; a corresponding point matching unit that matches corresponding points between the body model and the costume model; a costume deformation unit that moves a vertex of the costume model; a pose estimation unit that estimates a pose of the body model; a texture mapping unit that maps a texture of the costume model; a crease surface generation unit that generates a crease of a costume; a texture upgrading unit that updates a texture of the crease; a costume model renewal unit that corrects the texture; a mesh separation unit that separates a 3D mesh; and a mesh integrating unit that integrates the body model with the deformed costume model to generate a body model fitted with the costume.

Abstract: A method is provided for decoding a sequence of pictures using a gradual refresh technique. In particular, all areas in one picture are gradually encoded or decoded over a plurality of pictures associated with the picture.

Abstract: Provided is an encoding apparatus for integrally encoding and decoding a speech signal and a audio signal, and may include: an input signal analyzer to analyze a characteristic of an input signal; a stereo encoder to down mix the input signal to a mono signal when the input signal is a stereo signal, and to extract stereo sound image information; a frequency band expander to expand a frequency band of the input signal; a sampling rate converter to convert a sampling rate; a speech signal encoder to encode the input signal using a speech encoding module when the input signal is a speech characteristics signal; a audio signal encoder to encode the input signal using a audio encoding module when the input signal is a audio characteristic signal; and a bitstream generator to generate a bitstream.

Abstract: Apparatuses decode or encode a picture sequence, some having different resolutions, and transmit a bitstream of video data. The decoding apparatus has at least one processor, which decodes a first syntax element for specifying a reference size of pictures referring to a high-level syntax structure and a second syntax element for specifying a picture size scaled from the reference size. The processor also derives, based on the first and the second syntax elements, at least one offset factor and at least one scale factor representing a scale difference between a current picture including a current block to be decoded and a reference picture referred to by the current block. The processor generates a prediction block of the current block from the reference picture by using the motion vector of the current block, the at least one scale factor, and the at least one offset factor.

Abstract: Apparatuses encode or decode a picture sequence, some having different resolutions, and store a bitstream of encoded video data. The apparatus has a processor, which decodes a first syntax element for specifying a reference size of pictures referring to the high-level syntax structure and a second syntax element for specifying a picture size scaled from the reference size of the pictures referring to the high-level syntax structure. The processor derives at least one offset factor and at least one scale factor representing a scale difference between a current picture including a current block to be decoded and a reference picture referred to by the current block. The processor generates a prediction block of the current block from the reference picture by using the motion vector of the current block, the at least one scale factor, and the at least one offset factor.

Abstract: Methods encode or decode a picture sequence, some having different resolutions, and transmit a bitstream of encoded video data. The decoding method includes decoding a first syntax element for specifying a reference size of pictures referring to a high-level syntax structure and a second syntax element for specifying a picture size scaled from the reference size of the pictures referring to the high-level syntax structure. The method includes deriving at least one offset factor and at least one scale factor representing a scale difference between a current picture including a current block to be decoded and a reference picture referred to by the current block. The method includes generating a prediction block of the current block from the reference picture by using the motion vector of the current block, the at least one scale factor, and the at least one offset factor.

Abstract: Methods encode or decode a picture sequence, some having different resolutions, and store a bitstream of encoded video data. A decoding method includes decoding a first syntax for specifying a reference size of pictures referring to a high-level syntax structure and decoding a second syntax element for specifying a picture size scaled from the reference size of the pictures referring to the high-level syntax structure. The method includes deriving at least one offset factor and at least one scale factor representing a scale difference between a current picture including a current block to be decoded and a reference picture referred to by the current block.

Abstract: A method and apparatus for processing a video signal according to the present invention derives a first prediction value of a chrominance block using a sample of a luminance block, calculates a compensation parameter based on a predetermined reference area, derives a second prediction value of a chrominance block, and reconstructs a chrominance block based on a second prediction value of a chrominance block.

Abstract: A video decoding device obtains mirror prediction information for a target block and performs a mirror prediction on the target block based on the mirror prediction information. When the target block is part of a current block to be decoded, the video decoding device derives a mirror prediction boundary based on a mirror prediction type for determining a mirror prediction region and a non-mirror prediction region within the current block. The video decoding device predicts the mirror prediction region based on the mirror prediction boundary, predicts the non-mirror prediction region and thereby predicts the current block.

Abstract: A video decoding device generates a palette table for the current block, derives an index map by using adjacent information of the current block, and reconstructs samples of the current block based on the index map and the palette table. The adjacent information of the current block includes a neighboring block vector of the current block or a template within a previously reconstructed neighboring region of the current block. The index map includes the current block's per-sample index which indicates an entry in the palette table with a color value corresponding to a sample of the current block.

Abstract: The present invention relates to an image encoding and decoding technique, and more particularly, to an image encoder and decoder using unidirectional prediction. The image encoder includes a dividing unit to divide a macro block into a plurality of sub-blocks, a unidirectional application determining unit to determine whether an identical prediction mode is applied to each of the plurality of sub-blocks, and a prediction mode determining unit to determine a prediction mode with respect to each of the plurality of sub-blocks based on a determined result of the unidirectional application determining unit.

Abstract: According to an exemplary embodiment of the present disclosure, a static random access memory apparatus which stably maintains the writing performance in a low-power environment is applied to determine whether a writing performance of the SRAM is degraded based on a voltage difference of a first bit line and a second bit line connected to a memory cell and triggers an operation of the writing performance assist circuit of the SRAM.

Abstract: A method and an apparatus for video coding using a motion vector difference derivation includes parsing one motion vector difference when a motion vector pair is derived during bi-directional inter-prediction of the current block. The video coding method and the apparatus use the parsed one motion vector difference to derive the remaining motion vector difference or to refine the remaining motion vector.

Abstract: A method is disclosed for composing a MPM list in intra prediction. A video coding method and an apparatus derive intra-prediction modes for neighboring blocks that are non-usable for composing a Most Probable Mode list (MPM list) to organize the derived intra-prediction modes into an MPM list. The video coding method and the apparatus organize, based on history-based MPM list composition, the intra-prediction modes of non-adjacent blocks into a MPM list.

Abstract: An encoding apparatus and a decoding apparatus in a transform between a Modified Discrete Cosine Transform (MDCT)-based coder and a different coder are provided. The encoding apparatus may encode additional information to restore an input signal encoded according to the MDCT-based coding scheme, when switching occurs between the MDCT-based coder and the different coder. Accordingly, an unnecessary bitstream may be prevented from being generated, and minimum additional information may be encoded.

Abstract: The present invention enables efficient decoding by using DR mapping information between a base layer and an enhancement layer in various manners in an HDR decoder considering backward compatibility.