Abstract: The present disclosure relates to an image processing apparatus and an image processing method that are capable of improving coding efficiency at the time when a prediction using a correlation within a screen is performed. A predicted vector generation section sets, at a time of encoding of a current motion vector of a current block for a prediction using a correlation within a screen, a candidate block to not available and generates a predicted vector of the current motion vector by using a reference motion vector, the reference motion vector being referred to when the predicted vector of the current motion vector is generated. A difference vector generation section generates a difference vector between the current motion vector and the predicted vector generated by the predicted vector generation section. The present disclosure can be applied to, for example, an encoding apparatus.

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: An image encoding device and a method, and an image decoding device and a method that are designed to improve encoding efficiency in IntraBC. A screen is divided into four slices (Slices #0 through #3). In a case where reference to a different slice is prohibited, the range that can be referred to from the current CTU in Slice #2 is only the decoded portion in Slice #2, and therefore, any block in Slice #1 cannot be referred to, for example. In the case of the present technology, on the other hand, decoded different slices (Slice #0 and Slice #1) are included in the referable range, and accordingly, a block in Slice #1 can be referred to from the current CTU in Slice #2.

Abstract: The present disclosure relates to an imaging processing apparatus and method by which degradation of the quality due to two-dimensional projection of 3D data can be suppressed. All pieces of data for each position included in 3D data representative of a three-dimensional structure are projected to a two-dimensional plane of plural layers. Further, all pieces of data for each position of 3D data projected to a two-dimensional plane having the number of layers indicated by layer number information are projected to a three-dimensional space. The present disclosure can be applied, for example, to an information processing apparatus, an image processing apparatus, electronic equipment, an information processing method, and a program.

Abstract: A method of compressing meshes using a projection-based approach, and leveraging the tools and syntax already generated for projection-based point cloud compression is described herein. Similar to the V-PCC approach, the mesh is segmented into surface patches, only the difference is that the segments follow the connectivity of the mesh. Each surface patch (or 3D patch) is then projected to a 2D patch, whereby in the case of the mesh, the triangle surface sampling is similar to a common rasterization approach used in computer graphics. For each patch, the position of the projected vertices is kept in a list, along with the connectivity of those vertices. The sampled surface now resembles a point cloud, and is coded with the same approach used for point cloud compression. Additionally, the list of vertices and connectivity is encoded per patch, and this data is sent along with the coded point cloud data.

Abstract: The present disclosure relates to an image processing apparatus and a method that make it possible to suppress reduction of the encoding efficiency. A patch, which is an image where 3D data representative of a three-dimensional structure is projected on a two-dimensional plane, is placed and packed in a frame image on the basis of an evaluation of a result of prediction performed in encoding of the 3D data, and the frame image in which the patch is placed and packed is encoded using the prediction. The present disclosure can be applied, for example, to an information processing apparatus, an image processing apparatus, electronic equipment, an information processing method, a program or the like.

Abstract: The present disclosure relates to an image processing apparatus and a method that allow for easier and more appropriate rendering. Coded data is generated by encoding a two-dimensional plane image in which position information and attribute information for a point cloud that represents an object having a three-dimensional shape as a group of points are projected onto a two-dimensional plane, and a bitstream that includes the generated coded data and metadata to be used to render the point cloud is generated. The present disclosure can be applied to, for example, an image processing apparatus, an electronic device, an image processing method, a program, or the like.

Abstract: The present technology relates to a decoding device and a decoding method, and an encoding device and an encoding method that enable images that configure a packed image to be reliably displayed when an encoded stream is decoded and displayed. A decoding unit decodes an encoded data, the encoded data being an encoded packed image in which a plurality of images is packed, and generates the packed image. A display control unit identifies the images that configure the packed image based on packing SEI preferentially used when the packed image is displayed. The present technology can be applied to a decoding device, for example.

Abstract: The present disclosure relates to an information processing apparatus and method that are capable of suppressing a decrease in encoding efficiency. When point cloud data is to be Octree-encoded, a point distribution of child nodes of a current node is updated in accordance with a peripheral point distribution around the current node, and then a sequence of signals is generated by performing Octree encoding with the updated point distribution. The present disclosure is applicable, for example, to information processing apparatuses, image processing apparatuses, electronic equipment, information processing methods, or programs.

Abstract: Provided is 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 specifies a macroblock corresponding to a prediction image in part of reference frames using a motion vector supplied from a prediction mode determination circuit, reads an image thereof from a frame memory, and extracts it as a motion compensation image. A motion prediction circuit reads, from a frame memory, 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 in each frame, reads an image of a macroblock that matches or is similar to the motion compensation image MC0 from the frame memory, and extracts it as a motion compensation image. The present invention can be applied to, for example, an encoding device.

Abstract: There is provided a generation device, an identification information generation method, a reproduction device, and an image reproduction method capable of identifying a packing scheme. Stereo packing identification information for identifying a scheme of packing is generated with regard to a plurality of region images of a celestial sphere image packed in a packed frame. In a case in which packing is performed by one of a plurality of packing schemes, stereo packing identification information indicating a packing method can be generated, a projected frame can be generated easily on the basis of the identification information, and the projected frame can be rendered. The present technology can be applied to a case in which a celestial sphere stereoscopic image is transmitted to be reproduced on a reception side.

Abstract: There is provided an image processing device and an image processing method making it possible to suppress a reduction in coding efficiency. The image processing device and the image processing method set temporal resolution for each of partial regions of image data to be coded and code the image data to generate a bit stream including information indicating the temporal resolution for each of the set partial regions. Alternatively, the image processing device and the image processing method analyze information indicating temporal resolution for each of partial regions of image data, the information being included in a bit stream in which the image data is coded. The present disclosure is applicable to, for example, image processing devices, bit stream conversion devices, image coding devices, image decoding devices, communication devices, or the like.

Abstract: The present disclosure relates to an information processing apparatus and an information processing method capable of suppressing a reduction in quality of rendering results. Rendering is performed on voxel data that is 3D data obtained by quantizing position information using voxels and representing a three-dimensional structure in response to a shape of each of the voxels. Alternatively, rendering is performed on voxel data that is 3D data obtained by quantizing position information using voxels and representing a three-dimensional structure on the basis of rendering information that is information related to the rendering of the voxel data. The present disclosure is applicable to, for example, an information processing apparatus, an image processing apparatus, an electronic apparatus, an information processing method, a program, and the like.

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 specifies a macroblock corresponding to a prediction image in part of reference frames using a motion vector supplied from a prediction mode determination circuit, reads an image thereof from a frame memory, and extracts it as a motion compensation image. A motion prediction circuit reads, from a frame memory, at least one or more of the remaining reference frames, performs motion prediction of the motion compensation image supplied from the motion compensation circuit in each frame, reads an image of a macroblock that matches or is similar to the motion compensation image from the frame memory, and extracts it as a motion compensation image.

Abstract: The present disclosure relates to an image processing apparatus and method that allow suppression of image-quality deterioration. A plurality of maps indicating whether or not there is data at each position on one frame image having arranged a patch that is an image obtained by projecting 3D data representing a three-dimensional structure onto a two-dimensional plane is generated, and a bitstream including encoded data of the frame image and encoded data of a plurality of the generated maps is generated. The present disclosure can be applied to an information processing apparatus, an image processing apparatus, an electronic device, an information processing method, a program or the like, for example.

Abstract: The present disclosure relates to an image processing device and an image processing method capable of reducing a processing amount. A selection unit selects a plurality of reference pictures having mutually-different reference picture types from reference pictures represented by reference picture specifying information included in a reference list based on restriction identification information identifying that the reference list that is a list of reference picture specifying information specifying reference pictures of a current picture is used commonly within the current picture. A predicted image generating unit generates a predicted image of the current picture based on a motion vector of a collocated picture of time different from that of the current picture and a reference picture of a same reference picture type as a reference picture type of the collocated picture among the plurality of reference pictures selected by the selection unit.

Abstract: There is provided a generation device, an identification information generation method, a reproduction device, and an image generation method capable of easily acquiring a region with a margin and a region with no margin. An identification information generation unit generates margin identification information for identifying that a celestial sphere image includes a region with a margin. A client that uses a margin can easily acquire a region including the margin and a client that does not use a margin can easily acquire a region including no margin. The present technology can be applied to a case in which a celestial sphere image is transmitted from a server and is received and reproduced on a client side.

Abstract: The present disclosure relates to an image processing apparatus and an image processing method capable of suppressing a reduction in encoding efficiency. A bit stream is generated which contains: information indicating a correspondence relation between at least one of a geometry image obtained by projecting position information regarding 3D data representing a three-dimensional structure onto a two-dimensional plane or a texture image obtained by projecting attribute information regarding the 3D data onto a two-dimensional plane, and an occupancy map that is map information indicating whether or not data is present at each position; and encoded data regarding the geometry image, encoded data regarding the texture image, and encoded data regarding the occupancy map. The present disclosure is applicable to, for example, an information processing apparatus, an image processing apparatus, an electronic apparatus, an information processing method, a program, and the like.

Abstract: 3Ddata representing a three-dimensional structure is divided into a plurality of pieces and encoded, an obtained plurality of divided bitstreams is multiplexed, and one bitstream including a separator indicating a position of a joint between the divided bitstreams is generated. Furthermore, a separator indicating a position of a joint between divided bitstreams obtained by dividing 3Ddata representing a three-dimensional structure into a plurality of pieces and encoding the plurality of divided pieces of the 3Ddata, which is included in a bitstream obtained by multiplexing a plurality of the divided bitstreams, is analyzed, and the bitstream is divided into every divided bitstream on the basis of information included in the analyzed separator, and decoded. Applications of the technology include being implemented in, for example, an information processing apparatus, an image processing apparatus, electronic equipment, an information processing method, a program, or the like.

Abstract: The present disclosure relates to an information processing apparatus and a method that allows for suppression of a decrease in encoding efficiency. In comparison of voxel data resulting from quantization of point cloud data, a correlation degree of a distribution pattern between voxel data to be compared is calculated on the basis of a subjective feature of the distribution pattern of values of the voxel data. The present disclosure is applicable to an information processing apparatus, an image processing apparatus, an electronic device, an information processing method, a program, or the like, for example.