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: An image of a fixed subpicture being a subpicture in which a position of a reference pixel is fixed in a time direction, in subpictures that are partial areas obtained by dividing a picture, is encoded with a resolution variable in a time direction. Furthermore, coded data obtained by encoding an image of a fixed subpicture being a subpicture in which a position of a reference pixel is fixed in a time direction, in subpictures that are partial areas obtained by dividing a picture, with a resolution variable in a time direction is decoded to generate the image of the resolution of the fixed subpicture. The present disclosure can be applied to, for example, an image processing apparatus, an image encoding apparatus, an image decoding apparatus, an information processing apparatus, an image processing method, an information processing method, or the like.

Abstract: There is provided a terminal device capable of efficiently performing communication in a communication system in which a base station device and the terminal device communicate with each other. The terminal device that communicates with the base station device by using a plurality of aggregated cells recognizes that a serving cell is stopped in a first state, recognizes that the serving cell is started in a second state, and switches from the first state to the second state based on a received PDCCH.

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 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 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: The present disclosure relates to an image processing device and method for enabling suppression of an increase in encoding load. An encoding mode of encoding of an image is set by setting a transform type with a minimum encoding cost in a non-joint chrominance encoding mode as a transform type in a joint chrominance encoding mode, and deriving an encoding cost in the joint chrominance encoding mode. The present disclosure can be applied to, for example, an image processing device, an image encoding device, an information processing device, an electronic device, an image processing method, an information processing method, or the like.

Abstract: The present disclosure relates to an image processing device and method for enabling suppression of reduction in encoding efficiency. Encoding of secondary transform control information that is control information related to secondary transform is omitted in a case where a transform skip flag of at least one component among valid components in image encoding is true, and the secondary transform control information is encoded in a case where the transform skip flags of all the components among the valid components in image encoding are false. The present disclosure can be applied to, for example, an image processing device, an image encoding device, an image decoding device, a transmission device, a reception device, a transmission/reception device, an information processing device, an imaging device, a reproduction device, an electronic device, an image processing method, an information processing method, or the like.

Abstract: There is provided a terminal device capable of efficiently performing communication in a communication system in which a base station device and the terminal device communicate with each other. The terminal device that communicates with the base station device by using a plurality of aggregated cells recognizes that a serving cell is stopped in a first state, recognizes that the serving cell is started in a second state, and switches from the first state to the second state based on a received PDCCH.

Abstract: An image processing device is provided. The image processing device includes a decoding unit that decodes scaling list data to generate a first quantizing matrix of a first size, a generating unit that generates a second quantizing matrix for a transform block of a second size to which zeroing of a high-frequency component is applied, by referring to only a partial matrix of the first quantizing matrix generated by the decoding unit, and an inverse quantizing unit that inversely quantizes a quantized transform coefficient of the transform block of the second size, using the second quantizing matrix generated by the generating unit.

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: In a conventional art, an output layer set having no output layer is sometimes defined. Consequently, even if the decoder decodes a bit stream to obtain each layer in the output layer set without the output layer, there is no picture to be outputted. There is a possibility that such coded data causes the decoder expecting an output to operate unexpectedly. Output layer sets having the same configuration may be defined. Consequently, the amount of code pertaining to the output layer sets defined in an overlapping manner is redundant. According to an aspect of the present disclosure, a specification of a bit stream conformance pertaining to the output layer set prevents occurrence of an output layer set without an output layer and a redundant output layer set.

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: The present disclosure relates to an information processing device and method capable of curbing an increase in the load of coding processing/decoding processing. A fixed context variable is set for a first bin of a bin string of secondary transform control information, which is control information about secondary transformation, and each bin of the secondary transform control information is arithmetically coded with reference to the set fixed context variable. The present disclosure can be applied to, for example, an image processing device, an image coding device, an image decoding device, a transmitting device, a receiving device, a transmitting/receiving device, an information processing device, an imaging device, a reproduction device, an electronic apparatus, an image processing method, an information processing method, and the like.

Abstract: The present disclosure relates to an image processing device and method capable of curbing an increase in a coding/decoding load. A maximum transform block size in a lossless coding mode is set to the same size as a transform coefficient group corresponding to a maximum transform block size in a non-lossless coding mode. The present disclosure can be applied to, for example, an image processing device, an image coding device, an image decoding device, a transmitting device, a receiving device, a transmitting/receiving device, an information processing device, an imaging device, a reproducing device, an electronic apparatus, an image processing method, an information processing method, and the like.

Abstract: Inverse quantization is performed on a quantization coefficient using a quantization parameter depending on whether a transform skip is to be applied, inverse coefficient transformation is performed on a transform coefficient generated by inverse quantization to generate a predicted residual that is a residual between an image and a predicted image of the image when the transform skip is not to be applied, and the inverse coefficient transformation is skipped when the transform skip is to be applied. This 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 reproduction device, an electronic apparatus, an image processing method, an information processing method, or the like.

Abstract: A predetermined context variable is assigned, according to a device, system, or method, to a first bin of a bin sequence obtained by binarizing an adaptive orthogonal transform identifier indicating a mode of adaptive orthogonal transform in image encoding and context encoding is performed for the first bin of the bin sequence. Furthermore, a predetermined context variable is assigned to a first bin of a bin sequence obtained by binarizing an adaptive orthogonal transform identifier indicating a mode of inverse adaptive orthogonal transform in image decoding and context decoding is performed for the first bin of the bin sequence.

Abstract: The present disclosure relates to image processing apparatus and method that can suppress an increase in a load of encoding and decoding. One or both a predetermined upper limit and a predetermined lower limit are used to clip transformation coefficients obtained by applying a transformation process to a predicted residual that is a difference between an image and a predicted image of the image. In addition, one or both a predetermined upper limit and a predetermined lower limit are used to clip transformation coefficients that are subjected to an inverse transformation process to obtain a predicted residual that is a difference between an image and a predicted image of the image. The present disclosure can be applied to, for example, an image processing apparatus, an image encoding apparatus, an image decoding apparatus, and the like.

Abstract: The present disclosure relates to image processing apparatus and method that can suppress a reduction of subjective image quality. A process related to hiding of predetermined data with respect to data regarding an image is executed, and hiding is skipped in a case where data in a spatial domain of the image is to be encoded. The data regarding the image for which the hiding is performed or the data regarding the image for which the hiding is skipped is encoded. The present disclosure can be applied to, for example, an image processing apparatus, an image encoding apparatus, an image decoding apparatus, and the like.

Abstract: There is provided an image processing apparatus and an image processing method capable of suppressing a reduction in encoding efficiency. The number of significant figures of a prediction residual of an image is expanded 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 number of significant figures of a quantized coefficient obtained by performance of orthogonal transform and quantization on the prediction residual the number of significant figures of which is expanded is normalized on the basis of the bit depth of the local level; and the quantized coefficient the number of significant figures of which is normalized 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.