Abstract: The present disclosure relates to an image processing device and method capable of reducing an increase in processing delay. A data path of a one-dimensional input signal array of residual data is switched in a forward direction or a reverse direction, and matrix operation of one-dimensional orthogonal transform is performed on the one-dimensional input signal array input via the switched data path. The present disclosure can be applied to, for example, an image processing device, an image coding device, an image decoding device, a transmission device, a reception device, a transmission/reception device, an information processing device, an imaging device, a regeneration device, an electronic apparatus, an image processing method, an information processing method, or the like.

Abstract: The present disclosure relates to an apparatus and a method for image processing each of which enables reduction of a coding efficiency to be suppressed. In the case where primary transformation as transformation processing for a predictive residue as a difference between an image and a predictive image of the image and secondary transformation as transformation processing for a primary transformation coefficient obtained by subjecting the predictive residue to the primary transformation are caused to be skipped, a switch also causes bandwidth limitation for a secondary transformation coefficient obtained by subjecting the primary transformation coefficient to the secondary transformation to be skipped. The present disclosure, for example, can be applied to an image processing apparatus, an image coding apparatus, an image decoding apparatus or the like.

Abstract: The present disclosure relates to an image processing apparatus and an image processing method for enabling suppression of an increase in a memory capacity required for orthogonal transform and inverse orthogonal transform. A transformation matrix is derived using a submatrix configuring a part of the transformation matrix, a prediction residual of an image is orthogonally transformed using the derived transformation matrix, and coefficient data obtained by orthogonally transforming the prediction residual is encoded to generate a bit stream. The present disclosure can be applied to, for example, an image processing apparatus, an image encoding device, an image decoding device, or the like.

Abstract: There is provided an image processing apparatus and a method that can suppress an increase in the memory capacity necessary for an orthogonal transform and an inverse orthogonal transform. A submatrix as part of a transform matrix in a first size is used to derive a transform matrix in a second size that is a size smaller than the first size. The derived transform matrix is used to apply an inverse orthogonal transform to coefficient data in which a predicted residual of an image is orthogonally transformed. In this way, an image is generated. The present disclosure can be applied to, for example, an image processing apparatus, an image decoding apparatus, an image encoding apparatus, or the like.

Abstract: The present disclosure relates to an image processing apparatus and method capable of suppressing a reduction in encoding efficiency. An upper limit value of the number of bins allocated to a processing target subblock by distributing the number of bins among nonzero subblocks is set, a syntax element value regarding the processing target subblock is derived by using coefficient data derived from image data so that the number of bins does not exceed the upper limit value, and the syntax element value derived is encoded and coded data is generated. The present disclosure can be applied, for example, to an image processing apparatus, an image encode apparatus, an image decode apparatus, a transmitting apparatus, a receiving apparatus, a transmitting/receiving apparatus, an information processing apparatus, an imaging apparatus, a reproducing apparatus, an electronic device, an image processing method, an information processing method, and the like.

Abstract: The amount of processing is reduced with high coding efficiency maintained. There is provided an arithmetic decoding device including syntax decoding means for decoding each of at least a first syntax element and a second syntax element indicating a transform coefficient using arithmetic decoding with a context or arithmetic decoding without a context. The syntax decoding means performs decoding that at least includes not decoding the first syntax element and decoding the second syntax element using the arithmetic decoding without a context, and decoding the first syntax element using the arithmetic decoding with a context and decoding the second syntax element using the arithmetic decoding without a context.

Abstract: A reference picture information decoding unit (13) omits decoding of a reference list sorting presence or absence flag and/or a reference list sorting order based on the number of current picture referable pictures.

Abstract: There is provided an image processing apparatus and method that make it possible to suppress degradation of the encoding efficiency. In the case where primary transform that is a transform process for a prediction residual that is a difference between an image and a prediction image of the image is to be skipped, also secondary transform, which is a transform process for a primary transform coefficient obtained by the primary transform of the prediction residual, is skipped. The present disclosure can be applied, for example, to an image processing apparatus, an image encoding apparatus, an image decoding apparatus and so forth.

Abstract: The present disclosure relates to an apparatus and a method for image processing each of which enables reduction of a coding efficiency to be suppressed. In the case where primary transformation as transformation processing for a predictive residue as a difference between an image and a predictive image of the image and secondary transformation as transformation processing for a primary transformation coefficient obtained by subjecting the predictive residue to the primary transformation are caused to be skipped, a switch also causes bandwidth limitation for a secondary transformation coefficient obtained by subjecting the primary transformation coefficient to the secondary transformation to be skipped. The present disclosure, for example, can be applied to an image processing apparatus, an image coding apparatus, an image decoding apparatus or the like.

Abstract: The present disclosure relates to an image processing device and method that allow reduction in coding efficiency to be suppressed. A pixel value of a chroma component is predicted by linear prediction from a pixel value of a reference image of a luma component whose pixel location is changed by using a filter, and a prediction image of the chroma component is generated. A chroma component of encoded data in which an image is encoded is decoded by using the generated prediction image. The filter is selected on a basis of information regarding a pixel location of the chroma component and information regarding a color format. The present disclosure is applicable, for example, to an image processing device, an image encoding device, an image decoding device, or the like.

Abstract: There is provided an image processing apparatus and an image processing method by which a reduction in encoding efficiency can be suppressed. A prediction residual of an image is orthogonally transformed, the number of significant figures of coefficient data obtained by performance of orthogonal transform on the prediction residual is controlled on the basis of a bit depth indicating a range of pixel values of a local level that is a data unit smaller than a sequence level of the image; the coefficient data is quantized, and the number of significant figures of a quantized coefficient obtained by quantization of the coefficient data is controlled on the basis of the bit depth of the local level; and the quantized coefficient is encoded, and a bit stream is generated. The present disclosure is applicable to, for example, an image processing apparatus, an image encoding apparatus, or an image decoding apparatus.

Abstract: A prediction set determining section selects a prediction set from a prediction set group including a plurality of prediction sets having different combinations of prediction modes corresponding to different prediction directions. Further, a prediction mode determining section selects a prediction mode from the prediction set thus selected. An entropy encoding section encodes the prediction set thus selected, the prediction mode thus selected, and residual data between an input image and a predicted image formed on the basis of the prediction set and the prediction mode. This allows an image encoding device to carry out predictions from more various angles, thereby improving prediction efficiency.

Abstract: An image processing apparatus and an image processing method make it possible to suppress increase of the load of template matching. For each of motion vector candidates of accuracy rougher than accuracy of a motion vector candidate list, template matching between a template of a current block and a template of a reference block is performed to derive a cost, and elements of the motion vector candidate list are sorted on the basis of the derived costs of the motion vector candidates. Alternatively, for each of motion vector candidates of accuracy rougher than accuracy of a motion vector candidate list, template matching between a template of a current block and a template of a search point is performed to derive a cost, and a modification motion vector candidate is derived on the basis of the derived costs of the motion vector candidates.

Abstract: There is provided an image processing apparatus and method that can curb deterioration in coding efficiency. An inverse orthogonal transform of chrominance is performed using information regarding the inverse orthogonal transform of chrominance derived on the basis of information regarding an inverse orthogonal transform of luminance. For example, information regarding the orthogonal transform includes an adaptive primary transform flag indicating whether an adaptive primary transform of adaptively selecting one from a plurality of different orthogonal transforms and using the selected transform as a primary transform is to be applied to a transform block to be processed. The present disclosure can be applied to, for example, an image processing apparatus, an image encoding apparatus, an image decoding apparatus, or the like.

Abstract: There is provided an image processing apparatus and method that make it possible to suppress degradation of the encoding efficiency. In the case where primary transform that is a transform process for a prediction residual that is a difference between an image and a prediction image of the image is to be skipped, also secondary transform, which is a transform process for a primary transform coefficient obtained by the primary transform of the prediction residual, is skipped. The present disclosure can be applied, for example, to an image processing apparatus, an image encoding apparatus, an image decoding apparatus and so forth.

Abstract: The present disclosure relates to an image processing device and method that allow reduction in coding efficiency to be suppressed. A pixel value of a chroma component is predicted by linear prediction from a pixel value of a reference image of a luma component whose pixel location is changed by using a filter, and a prediction image of the chroma component is generated. A chroma component of encoded data in which an image is encoded is decoded by using the generated prediction image. The filter is selected on a basis of information regarding a pixel location of the chroma component and information regarding a color format. The present disclosure is applicable, for example, to an image processing device, an image encoding device, an image decoding device, or the like.

Abstract: There is provided an image processing apparatus and an image processing method for enabling suppression of an increase in a memory capacity required for orthogonal transform and inverse orthogonal transform. A second transformation matrix is derived using a first transformation matrix, a prediction residual of an image is orthogonally transformed using the derived second transformation matrix, and coefficient data obtained by orthogonally transforming the prediction residual is encoded to generate a bit stream. The present disclosure can be applied to, for example, an image processing apparatus, an image encoding device, an image decoding device, or the like.

Abstract: There is provided an image processing apparatus and method for enabling suppression of reduction in coding efficiency. A transform type candidate table corresponding to an encoding parameter is selected from among a plurality of transform type candidate tables having different frequency characteristics of transform type candidates as elements, a transform type to be applied to a current block is set using the selected transform type candidate table, and coefficient data of the current block is inversely orthogonally transformed using a transform matrix of the set transform type. The present disclosure can be applied to, for example, an image processing apparatus, an image encoding device, an image decoding device, or the like.

Abstract: There is provided an image processing apparatus and an image processing method by which a reduction in encoding efficiency can be suppressed. A prediction residual of an image is orthogonally transformed, the number of significant figures of coefficient data obtained by performance of orthogonal transform on the prediction residual is controlled on the basis of a bit depth indicating a range of pixel values of a local level that is a data unit smaller than a sequence level of the image; the coefficient data is quantized, and the number of significant figures of a quantized coefficient obtained by quantization of the coefficient data is controlled on the basis of the bit depth of the local level; and the quantized coefficient is encoded, and a bit stream is generated. The present disclosure is applicable to, for example, an image processing apparatus, an image encoding apparatus, or an image decoding apparatus.

Abstract: The present disclosure relates to an image processing device and method that allow reduction in coding efficiency to be suppressed. A pixel value of a chroma component is predicted by linear prediction from a pixel value of a reference image of a luma component whose pixel location is changed by using a filter, and a prediction image of the chroma component is generated. A chroma component of encoded data in which an image is encoded is decoded by using the generated prediction image. The filter is selected on a basis of information regarding a pixel location of the chroma component and information regarding a color format. The present disclosure is applicable, for example, to an image processing device, an image encoding device, an image decoding device, or the like.