Sony Corporation

Sony Group Corporation

Jfe Steel Corporation

Mita Industrial Co., Ltd.

Mitsumi Electric Company Ltd.

Audio-technica Corporation

Canon Kabushiki Kaisha

Koji Yano

Tsuyoshi Kato

Ohji Nakagami

Satoru Kuma

Hiroyuki Yasuda

Nobuhiro Miyakawa

Kazuo Yamamoto

Teruaki Higashiguchi

Kenji Oi

Yoshinobu Kawakami

Masahito Suzuki

Toshifumi Kodama

Hiroyuki Sumi

Toru Fusejima

Tomoki Segawa

Tetsujiro Kondo

Takashi Nakamura

Takao Inoue

Noriaki Takahashi

Takashi Sawao

Takeshi Yamaguchi

Takashi Takeda

Takeyuki Sone

Toshinobu Sugiyama

Junji Takeshita

Akihiro Okumura

Yuichi Araki

Tomoyuki Yokota

Yuji Fujimoto

Tsutomu Ichikawa

Takatoshi Itagaki

Katsuhisa Shinmei

Junichiro Enoki

Otto Albrecht

Shigeto Sakashita

Kohei Yoshida

Naoya Hayakawa

Atsushi Ishigami

Ryota Kageyama

Keiji Kawai

Akihito Tamamura

Koichi Murano

The present disclosure relates to an image processing apparatus and a method that enable decoding of encoded data of an octree in various processing orders. The octree corresponding to point cloud data is encoded after the context is initialized for each layer of the octree. Further, a breadth-first order or a depth-first order is selected as the decoding order for the encoded data of the octree corresponding to point cloud data, and the encoded data is decoded in the selected decoding order. The present disclosure can be applied to an image processing apparatus, an electronic apparatus, an image processing method, a program, or the like, for example.

Image processing apparatus and method

There is provided an information processing apparatus, an image processing apparatus, an encoding device, a decoding device, an information processing method, and a program that facilitate scalable decoding of attribute information. Regarding the attribute information about a point cloud representing a three-dimensional object, a process of classifying the respective points of the point cloud into prediction points that are the points at which difference values between the attribute information and predicted values are left, and reference points that are the points at which the attribute information is referred to during derivation of the predicted values is recursively repeated on the reference points, so that the attribute information is hierarchized. At the time of the hierarchization, the prediction points are selected so that points also exist in voxels of the hierarchical level one level higher than the hierarchical level to which the voxels containing the points of the current hierarchical level belong.

Information processing apparatus and method

A filter process is performed on point cloud data using a representative value of the point cloud data for each local region obtained by dividing a three-dimensional space. A two-dimensional plane image on which the point cloud data subjected to the filter process is projected is encoded, and a bitstream is generated. The filter process can be performed by, for example, an information processing apparatus, an image processing apparatus, electronic equipment, an information processing method, a program, or the like.

Image processing apparatus and image processing method for suppressing an increase in processing time of a filter process for point cloud data

There is provided an information processing device and method capable of suppressing a reduction in encoding efficiency. When performing, for attribute information of each point of a point cloud that represents an object having a three-dimensional shape as a set of points, hierarchization of the attribute information by recursively repeating classification of a prediction point for deriving a difference value between the attribute information and a predicted value of the attribute information and a reference point used for deriving the predicted value with respect to the reference point, the reference point is set on the basis of a centroid of points. The present disclosure can be applied to, for example, an information processing device, an image processing device, an encoding device, a decoding device, an electronic device, an information processing method, a program, and the like.

Information processing device and method

There is provided an information processing device, an image processing device, an encoding device, a decoding device, an electronic apparatus, an information processing method, or a program for processing attribute information of each point of a point cloud representing an object in a three-dimensional shape as a set of points, a first level is hierarchized using a first hierarchization method and a second level different from the first level is hierarchized using a second hierarchization method different from the first hierarchization method at the time of performing hierarchization of attribute information by recursively repeating processing of, among points classified as a predictive point or a reference point, deriving a difference value between a predictive value of attribute information of the predictive point derived using attribute information of the reference point and the attribute information of the predictive point for the reference point to perform hierarchization of the attribute information.

There is provided an image processing device and a method that enable partial decoding of 3D data to be performed more easily. Management information of a block as a partial region in a predetermined three-dimensional spatial region including 3D data representing a three-dimensional structure is generated. In addition, a block satisfying a condition specified by a user is selected on the basis of management information of the block as a partial region in a predetermined three-dimensional spatial region including 3D data representing a three-dimensional structure, and coded data of the 3D data within the selected block is decoded. The present disclosure can be applied to, for example, an image processing device, an electronic apparatus, an image processing method, a program, or the like.

Image processing device and method

There is provided an information processing apparatus and method which enable an increase in a load of decoding processing of coded data of a point cloud to be suppressed. Positional information of a point cloud expressing an object with a three-dimensional shape as a set of points is encoded in an order which causes a decoding result of coded data of the positional information to be output in a processing order of attribute information of the point cloud, and coded data thereof is generated. In addition, coded data of positional information of a point cloud expressing an object with a three-dimensional shape as a set of points is decoded and a decoding result thereof is to be output in a processing order of attribute information of the point cloud. For example, the present disclosure can be applied to an information processing apparatus, an image processing apparatus, a coding apparatus, a decoding apparatus, an electronic device, an information processing method, a program, or the like.

The present disclosure relates to an image processing apparatus and an image processing method each capable of reducing image quality deterioration. A connection component constituted by points that are included in a point group representing a three-dimensional structure, located adjacent to each other, and projected in an identical direction is projected on a two-dimensional plane in a plurality of directions to generate patches in the respective directions. A frame image where the generated patches in the respective directions are arranged is coded. For example, the present disclosure is applicable to an information processing apparatus, an image processing apparatus, an electronic apparatus, an information processing method, a program, or the like.

The present disclosure relates to an information processing device and a method capable of suppressing a reduction in encoding efficiency of point cloud data. As for a point cloud representing an object having a three-dimensional shape as a point group, position information of a point to be processed is predicted on the basis of position information of a reference point, position information of a prediction point is generated, a difference between the generated position information of the prediction point and the position information of the point to be processed is derived, the derived difference is encoded, and a bitstream is generated. The present disclosure may be applied to, for example, an information processing device, an electronic device, an information processing method, a program or the like.

The present disclosure relates to image processing apparatus and method that can prevent a reduction in image quality. Geometry data that is a frame image having arranged thereon a projected image obtained by projecting 3D data representing a three-dimensional structure on a two-dimensional plane and includes a special value indicating occupancy map information in a range is generated. The generated geometry data is encoded. Further, the encoded data on the geometry data is decoded, and a depth value indicating a position of the 3D data and the occupancy map information are extracted from the decoded geometry data. The present disclosure is applicable to, for example, an information processing apparatus, an image processing apparatus, electronic equipment, an information processing method, or a program.

There is provided an image processing apparatus and an image processing method that are capable of suppressing an increase in loads when a point cloud is generated from a mesh. Point cloud data is generated by positioning points at intersection points between a surface of a mesh and vectors each including, as a start origin, position coordinates corresponding to a specified resolution. For example, intersection determination is performed between the surface of the mesh and each of the vectors, and in a case where the surface and the vector are determined to intersect each other, the coordinates of the intersection point are calculated. The present disclosure can be applied to an image processing apparatus, electronic equipment, an image processing method, a program, or the like.

Image processing apparatus and method for image processing by deriving voxel and mesh data to generate point cloud data

There is provided an image processing device and a method capable of suppressing lowering of image quality. Correction information that is information regarding correction of 3D data representing a three-dimensional structure constructed using 2D data representing a two-dimensional image is generated, and the generated correction information is coded. Furthermore, coded data of correction information that is information regarding correction of 3D data representing a three-dimensional structure constructed using 2D data representing a two-dimensional image is decoded, and 3D data is constructed using the 2D data and correction information generated by decoding coded data of the correction information. The present disclosure can be applied to, for example, an information processing device, an image processing device, an electronic apparatus, an information processing method, a program, or the like.

The present disclosure relates to an information processing apparatus and an information generation method that enable suppression of deterioration in subjective quality of a point cloud. There is generated an occupancyMap indicating, for each local area of a frame image, presence or absence of a projection image of a point cloud on a two-dimensional plane in accordance with a positional relationship of points in a three-dimensional space, while the point cloud represents an object having a three-dimensional shape as a set of the points. The present disclosure can be applied to, for example, an information processing apparatus, an encoding device, a decoding device, or the like.

Information processing apparatus and information generation method

Growing community of inventors

Tokyo, Japan

Koji Yano