Abstract: An apparatus comprises: a unit that analyzes syntax of a bitstream corresponding to moving image data for which a minimum size of a unit according to decoding processing is defined and syntax of an accompanying bitstream that accompanies the bitstream; a unit that transforms high-level syntax obtained as a result of the analysis into new high-level syntax including a resolution that is lower than a resolution that the high-level syntax includes; a unit that transforms information which is obtained as a result of the analysis and is associated with a minimum size unit in the bitstream into information associated with a corresponding unit in the accompanying bitstream; and a unit that synthesizes, in accordance with syntax, the new high-level syntax and information after the transformation, and that generates a new bitstream.

Abstract: A moving image decoding apparatus comprises a decoding unit that entropy-decodes a bitstream corresponding to, out of a low-frequency component and a high-frequency component obtained as a result of non-redundantly transforming a block of a difference signal between an image and a prediction image into frequency components, the low-frequency component; an inverse-quantization/inverse-transformation unit that inverse-quantizes and inverse-transforms a level value obtained as a result of the entropy-decoding in the decoding unit, and generates the low-frequency component; and an addition unit that generates a block of a low-resolution image whose resolution is lower than the resolution of the image, from a block of the low-frequency component generated by the inverse-quantization/inverse-transformation unit and a corresponding block of a prediction image.

Abstract: Provided is a moving image processing apparatus. A moving image processing apparatus includes: a detection unit configured to detect a boundary of blocks; a determination unit configured to determine a strength of the boundary detected by the detection unit; and a deciding unit configured to decide whether or not a filter is to be applied to the boundary based on the strength of the boundary determined by the determination unit. The determination unit is further configured to use a size of a transformation block to determine the strength of the boundary.

Abstract: In the case where an input image is an image of a non-YUV420 format and an encoding unit is the smallest CU block, an adaptive-sub-sampling luma reference pixel acquisition unit sub-samples reference pixels existing neighboring a luma block corresponding to a chroma prediction target block based on a luma intra prediction mode, and acquires a pixel value of each of the sub-sampled reference pixels. In the case where the input image is an image of a non-YUV420 format and the encoding unit is the smallest CU block, an adaptive-sub-sampling chroma reference pixel acquisition unit sub-samples reference pixels existing neighboring the chroma prediction target block based on the luma intra prediction mode, and acquires a pixel value of each of the sub-sampled reference pixels.

Abstract: A moving image encoding apparatus that encodes a moving image and generates encoded data includes an extraction unit configured to extract a brightness change direction for each of blocks acquired by dividing the moving image; and a pixel value control unit configured to control pixel values of a locally decoded image based on the brightness change direction extracted by the extraction unit, for each of the blocks acquired by dividing the moving image.

Abstract: An intra prediction unit that performs intra-frame prediction includes a luminance reference pixel acquisition unit and a chrominance reference pixel acquisition unit. When the coding unit is set to a smallest CU block, the luminance reference pixel acquisition unit subsamples reference pixels arranged at integer pixel locates neighboring a luminance block that corresponds to a chrominance prediction target block, and acquires the pixel values of the reference pixels after the subsampling. Furthermore, when the coding unit is set to a smallest CU block, the chrominance reference pixel acquisition unit subsamples reference pixels arranged at integer pixel locates neighboring the chrominance prediction target block, and acquires the pixel values of the reference pixels after the subsampling. Such an arrangement is capable of reducing the number of reference pixels used to reduce the redundancy between the color components.

Abstract: An encoding device includes means for determining a block division type and an intra prediction mode, means for applying non-square intra prediction to obtain a predictive value when the determined block is non-square, means for obtaining a prediction residual which is the difference between the predictive value and a corresponding input image to be encoded, means for rearranging prediction residuals obtained when the determined block is non-square into a square format, means for applying orthogonal transformation to the prediction residuals rearranged into the square format to obtain a transform coefficient, means for quantizing the transform coefficients to obtain level values, means for encoding the level values, the block division type, and the intra prediction mode, means for inversely quantizing and inversely transforming the level values to obtain reconstructed prediction residuals, and means for rearranging a block of the reconstructed prediction residuals into a non-square format.

Abstract: A video encoding apparatus that encodes a video having a plurality of color components includes: a linear prediction unit configured to perform linear prediction of reference pixels of a prediction target color component using reference pixels that are used in intra prediction for a color component other than the prediction target color component among the plurality of color components; and an intra prediction unit configured to perform intra prediction of a prediction target block of the prediction target color component using the reference pixels of the prediction target color component that have been obtained through the linear prediction performed by the linear prediction unit.

Abstract: In the case where an input image is an image of a non-YUV420 format and an encoding unit is the smallest CU block, an adaptive-sub-sampling luma reference pixel acquisition unit sub-samples reference pixels existing neighboring a luma block corresponding to a chroma prediction target block based on a luma intra prediction mode, and acquires a pixel value of each of the sub-sampled reference pixels. In the case where the input image is an image of a non-YUV420 format and the encoding unit is the smallest CU block, an adaptive-sub-sampling chroma reference pixel acquisition unit sub-samples reference pixels existing neighboring the chroma prediction target block based on the luma intra prediction mode, and acquires a pixel value of each of the sub-sampled reference pixels.

Abstract: A video encoding apparatus encodes an input image having three color components each having the same color spatial resolution. The video encoding apparatus performs color space conversion by applying a transformation coefficient to a residual signal which represents a difference between the input image and a predicted image generated by intra frame prediction or otherwise inter frame prediction, so as to generate a residual signal in an uncorrelated space. Such an arrangement provides a hardware-friendly configuration with a reduced processing load and with reduced redundancy in the color space.

Abstract: An intra prediction unit that performs intra-frame prediction includes a luminance reference pixel acquisition unit and a chrominance reference pixel acquisition unit. When the coding unit is set to a smallest CU block, the luminance reference pixel acquisition unit subsamples reference pixels arranged at integer pixel locates neighboring a luminance block that corresponds to a chrominance prediction target block, and acquires the pixel values of the reference pixels after the subsampling. Furthermore, when the coding unit is set to a smallest CU block, the chrominance reference pixel acquisition unit subsamples reference pixels arranged at integer pixel locates neighboring the chrominance prediction target block, and acquires the pixel values of the reference pixels after the subsampling. Such an arrangement is capable of reducing the number of reference pixels used to reduce the redundancy between the color components.

Abstract: The invention relates to a video encoding device and a video decoding device, and reduces the amount of calculation when applying depth intra-prediction for depth maps, targeting textures and depth maps at respective viewpoints in a multi-view video image. Average calculations and SAD calculations are performed in respective calculation target regions partitioned by wedgelets, and a wedgelet with the minimum SAD for the block is used for prediction. Here, partitioning a target block into sub-blocks and limiting a calculation target region by determining whether to include each sub-block in a calculation target region with each wedgelet based on a region where said wedgelet passes in each sub-block enables reducing the amount of calculation.