Abstract: The present technique relates to a decoding device and a decoding method, and an encoding device and an encoding method, capable of performing encoding and decoding independently in the time direction for each tile. A decoding unit generates a prediction image by performing, for each of tiles, motion compensation of a reference image within a co-located tile based on tile splittable information indicating that decoding is allowed for each of the tiles and motion vector information representing a motion vector used for generating encoded data of a decoding target current image when a picture of the current image is split into the tiles and decoded. The decoding unit decodes the encoded data using the prediction image. The present technique is applicable to a decoding device, for example.

Abstract: The present invention relates to an image processing apparatus and method that can improve encoding efficiency while preventing an increase in load. An extraction circuit 71 of a filtering prediction circuit 64 extracts motion compensation images for generating a prediction image in a high-resolution enhancement layer from reference frames in a low-resolution base layer. A filtering circuit 72 of the filtering prediction circuit 64 performs filtering, which involves upconversion and which uses analysis in the time direction, on a plurality of motion compensation images in the base layer extracted by the extraction circuit 71 to generate a prediction image in the enhancement layer. The present invention can be applied to, for example, an encoding apparatus and a decoding apparatus.

Abstract: An image coding apparatus and method capable of suppressing a decrease in coding efficiency. The image coding apparatus includes: a coding unit that codes image data configured by plural layers; an interlayer prediction-related information generating unit that generates information relating to an interlayer prediction of the current slice in a case a layer of the current slice is an enhancement layer, and a slice type of current slice is a P slice or a B slice; and a transmission unit that transmits coded data of the image data generated by the coding unit and the information relating to the interlayer prediction generated by the interlayer prediction-related information generating unit. The apparatus and method, for example, may be applied to an image coding apparatus that scalably codes image data or an image decoding apparatus that decodes coded data acquired by performing scalable coding of the image data.

Abstract: A video coding system, and a method of operation thereof, includes: a source input module for receiving a frame from a video source; and a picture process module, coupled to the source input module, for generating a neighboring coding unit in the frame, for generating an intra block motion vector with a constrained intra prediction flag enabled and the neighboring coding unit generated based on only an intra-picture prediction mode, for generating a current coding unit based on the intra block motion vector, the current coding unit adjacent the neighboring coding unit, and for generating a video bitstream based on the current coding unit for a video decoder to receive and decode for displaying on a device.

Abstract: A video coding system, and a method of operation thereof, includes: a source input module for receiving a frame from a video source; and a picture process module, coupled to the source input module, for generating a reference coding unit in the frame; for generating an intra copy motion vector pointing to the reference coding unit within a search range, wherein the search range does not include an upper coding tree unit of the frame; for generating a current coding unit based on the intra copy motion vector; and for generating a video bitstream based on the current coding unit for a video decoder to receive and decode for displaying on a device.

Abstract: The present disclosure relates to an image processing apparatus and a method that enable efficient change of reference relationship of views in multi-view coding. In the present technology, as for inter-view reference images, a used_by_curr flag is also set to an image having a possibility of being referred, in a slice header or syntax of an SPS. Only an image with the used_by_curr flag of 1 is added to a temporal list used in generating a reference list. Therefore, the temporal list (RefPicListTemp0[rIdx]) of L0 is generated in an order of a short-term (before) reference image of an index 0, a short-term (after) reference image of an index 1, and inter-view reference images of indexes 2 and 3. The present disclosure can be applied to an image processing apparatus, for example.

Abstract: The present invention relates to image processing device and method which can suppress block noise. A filter strength determination unit determines the filter strength for every four lines under the control of a control unit. In other words, if a block boundary determination unit has determined to perform filtering, the filter strength determination unit determines at which strength of the strong filter or the weak filter the filtering process is performed, and outputs the determination result to a filter calculation unit. On this occasion, the filter strength determination unit uses the Bs value in the determination formula of the strong filter. For example, in the case of using the Bs value, the threshold of the determination is set in accordance with a linear function of the Bs value from the control unit. The present disclosure can be applied to, for example, an image processing device.

Abstract: A video coding system, and a method of operation thereof, includes: a source input module for receiving a frame from a video source; and a picture process module, coupled to the source input module, for generating a reference coding unit in the frame; for generating an intra copy motion vector pointing to the reference coding unit within a search range, wherein the search range does not include an upper coding tree unit of the frame; for generating a current coding unit based on the intra copy motion vector; and for generating a video bitstream based on the current coding unit for a video decoder to receive and decode for displaying on a device.

Abstract: A video coding system, and a method of operation thereof, includes: a source input module for receiving a frame from a video source; and a picture process module, coupled to the source input module, for generating a neighboring coding unit in the frame, for generating an intra block motion vector with a constrained intra prediction flag enabled and the neighboring coding unit generated based on only an intra-picture prediction mode, for generating a current coding unit based on the intra block motion vector, the current coding unit adjacent the neighboring coding unit, and for generating a video bitstream based on the current coding unit for a video decoder to receive and decode for displaying on a device.

Abstract: The present technique relates to a decoding device and a decoding method, and an encoding device and an encoding method, capable of performing encoding and decoding independently in the time direction for each tile. A decoding unit generates a prediction image by performing, for each of tiles, motion compensation of a reference image within a co-located tile based on tile splittable information indicating that decoding is allowed for each of the tiles and motion vector information representing a motion vector used for generating encoded data of a decoding target current image when a picture of the current image is split into the tiles and decoded. The decoding unit decodes the encoded data using the prediction image. The present technique is applicable to a decoding device, for example.

Abstract: The present disclosure relates to an image processing apparatus and a method that enable efficient change of reference relationship of views in multi-view coding. In the present technology, as for inter-view reference images, a used_by_curr flag is also set to an image having a possibility of being referred, in a slice header or syntax of an SPS. Only an image with the used_by_curr flag of 1 is added to a temporal list used in generating a reference list. Therefore, the temporal list (RefPicListTemp0[rldx]) of L0 is generated in an order of a short-term (before) reference image of an index 0, a short-term (after) reference image of an index 1, and inter-view reference images of indexes 2 and 3. The present disclosure can be applied to an image processing apparatus, for example.

Abstract: An image processing device includes a reception section configured to receive an encoded stream set in syntax of the encoded stream in which motion vector (MV) range limit information is encoded in units in which image data have a hierarchical structure and the MV range limit information, the MV range limit information being information about a limit of a value of a vertical direction of an MV for referring to a view different from a view of a current block in an inter-view MV corresponding to the current block, and a decoding section configured to decode the encoded stream received by the reception section using the MV range limit information received by the reception section.

Abstract: There is provided an image processing device including circuitry configured to predict, from an image of a first layer, an image of a second layer having a different pixel attribute from the first layer, by using a lookup table in which a combination of a luma component, a first chroma component, and a second chroma component of the first layer is mapped to a predicted pixel value of the second layer corresponding to the combination, wherein a predicted value of a luma component of the second layer is acquired by using a first lookup table, and a predicted value of a first chroma component of the second layer is acquired by using a second lookup table with granularity different from granularity of the first lookup table.

Abstract: The present invention relates to image processing device and method which can suppress block noise. A filter strength determination unit determines the filter strength for every four lines under the control of a control unit. In other words, if a block boundary determination unit has determined to perform filtering, the filter strength determination unit determines at which strength of the strong filter or the weak filter the filtering process is performed, and outputs the determination result to a filter calculation unit. On this occasion, the filter strength determination unit uses the Bs value in the determination formula of the strong filter. For example, in the case of using the Bs value, the threshold of the determination is set in accordance with a linear function of the Bs value from the control unit. The present disclosure can be applied to, for example, an image processing device.

Abstract: The present disclosure relates to an image processing apparatus and an image processing method which make it possible to reduce a processing load in performing intra BC prediction utilizing correlativity in a screen. A limiting unit limits a motion vector of a current block to be used for the intra BC prediction utilizing the correlativity in the screen, in such a manner that a peripheral pixel of the current block is not used for the intra BC prediction of the current block. The present disclosure can be applied to an encoding apparatus or the like that performs the intra BC prediction when encoding is performed on a CU (Coding Unit)-by-CU basis in accordance with a system complying with an HEVC (High Efficiency Video Coding) system, for example.

Abstract: The present invention relates to an image processing device and method that enable generation of a highly precise prediction image using a small amount of control information. A motion compensation circuit 51 specifies a macroblock corresponding to a prediction image in part of reference frames using a motion vector supplied from a prediction mode determination circuit 41, reads an image thereof from a frame memory 19, and extracts it as a motion compensation image. A motion prediction circuit 52 reads, from a frame memory 122, at least one or more of the remaining reference frames, performs motion prediction of the motion compensation image MC0 supplied from the motion compensation circuit 51 in each frame, reads an image of a macroblock that matches or is similar to the motion compensation image MC0 from the frame memory 122, and extracts it as a motion compensation image. The present invention can be applied to, for example, an encoding device and a decoding device.

Abstract: An image processing device including a reception section configured to receive an encoded stream set in syntax of the encoded stream in which motion vector (MV) range limit information is encoded in units in which image data have a hierarchical structure and the MV range limit information, the MV range limit information being information about a limit of a value of a vertical direction of an MV for referring to a view different from a view of a current block in an inter-view MV corresponding to the current block, and a decoding section configured to decode the encoded stream received by the reception section using the MV range limit information received by the reception section.

Abstract: The present invention relates to an image processing device and method that enable generation of a highly precise prediction image using a small amount of control information. The present invention provides an electronic device including circuitry configured to filter a motion-compensated image based on an identification flag configured to indicate that a prediction image is to be generated through a filtering process and generate the prediction image by the filtering process.

Abstract: The present disclosure relates to an image processing device and method that enable suppression of an increase in the amount of coding of a quantization matrix. An image processing device of the present disclosure includes an up-conversion unit configured to up-convert a quantization matrix limited to a size less than or equal to a transmission size that is a maximum size allowed for transmission, from the transmission size to a size that is identical to a block size that is a processing unit of quantization or dequantization. The present disclosure is applicable to, for example, an image processing device for processing image data.

Abstract: High efficiency video coding (HEVC) enhancements are described for intrablock copying for reducing motion vector (MV) coding redundancy and enhancing in range extensions (RExt) by selecting a default block my predictor. In reducing MV data redundancy, the value of MVx and/or MVy can have a baseline at the width (W), or height (H) of the respective block, whereby fewer bits need to be encoded.