公开(公告)号：WO2015023689A2

公开(公告)日：2015-02-19

申请号：PCT/US2014/050766

申请日：2014-08-12

Applicant: SONY CORPORATION ,  TABATABAI, Ali ,  XU, Jun

Inventor： TABATABAI, Ali ,  XU, Jun ,  NAKAGAMI, Ohji

CPC classification number: H04N19/513 ,  H04N19/52 ,  H04N19/70

Abstract: High efficiency video coding (HEVC) enhancements are described for intra-block copying for reducing motion vector (MV) coding redundancy and enhancing in range extensions (RExt) by selecting a default block mv 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. One embodiment for enhancing RExt provides an improved selection of a default block vector predictor for the first CU performing intra-block copying in a CTU.

Abstract translation: 描述了用于块内复制的高效率视频编码（HEVC）增强以通过选择默认块mv预测器来减少运动矢量（MV）编码冗余和增强范围扩展（RExt）。 在减少MV数据冗余时，MVx和/或MVy的值可以在相应块的宽度（W）或高度（H）处具有基线，由此需要编码较少的位。 用于增强RExt的一个实施例提供了对在CTU中执行块内复制的第一CU的默认块向量预测器的改进的选择。

公开(公告)号：WO2014168972A1

公开(公告)日：2014-10-16

申请号：PCT/US2014/033375

申请日：2014-04-08

Applicant: SONY CORPORATION ,  AUYEUNG, Cheung ,  XU, Jun ,  NAKAGAMI, Ohji ,  TABATABAI, Ali

Inventor： AUYEUNG, Cheung ,  XU, Jun ,  NAKAGAMI, Ohji ,  TABATABAI, Ali

IPC: H04N7/26

CPC classification number: H04N19/167 ,  H04N19/115 ,  H04N19/174 ,  H04N19/187 ,  H04N19/33 ,  H04N19/36 ,  H04N19/463 ,  H04N19/70

Abstract: Region of Interest (ROI) scalability with SHVC is able to be implemented where scalability is used for part of a picture but not the whole picture. Applications of ROI scalability include traffic monitoring, security monitoring and tiled streaming.

Abstract translation: 使用SHVC的感兴趣区域（ROI）可扩展性能够在可用性用于图像的一部分而不是整个图像的情况下实现。 ROI可扩展性的应用包括流量监控，安全监控和平铺流。

公开(公告)号：WO2015134360A1

公开(公告)日：2015-09-11

申请号：PCT/US2015/018248

申请日：2015-03-02

Applicant: SONY CORPORATION ,  XU, Jun ,  TABATABAI, Ali

Inventor： XU, Jun ,  TABATABAI, Ali ,  NAKAGAMI, Ohji ,  SUZUKI, Teruhiko

IPC: G06K9/44

CPC classification number: H04N19/86 ,  H04N19/117 ,  H04N19/157 ,  H04N19/179 ,  H04N19/186

Abstract: Based on conditions or restrictions, Strong Intra Smoothing (SIS) is enabled or disabled. SIS is not allowed for chroma when the chroma format is 444, and SIS is not allowed for chroma when the chroma format is 422 or 444.

Abstract translation: 根据条件或限制，启用或禁用强内部平滑（SIS）。 当色度格式为444时，SIS不允许色度，当色度格式为422或444时，SIS不允许为色度。

公开(公告)号：WO2021188238A1

公开(公告)日：2021-09-23

申请号：PCT/US2021/018063

申请日：2021-02-13

Applicant: SONY GROUP CORPORATION ,  GRAZIOSI, Danillo ,  NAKAGAMI, Ohji ,  ZAGHETTO, Alexandre ,  TABATABAI, Ali

Inventor： GRAZIOSI, Danillo ,  NAKAGAMI, Ohji ,  ZAGHETTO, Alexandre ,  TABATABAI, Ali

IPC: G06T7/11 ,  G06T7/292 ,  G06T17/20

Abstract: A method of compressing untracked and tracked 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, where a 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 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 the data is sent along with the coded point cloud data.

公开(公告)号：WO2020128650A1

公开(公告)日：2020-06-25

申请号：PCT/IB2019/057835

申请日：2019-09-18

Applicant: SONY CORPORATION

Inventor： GRAZIOSI, Danillo ,  NAKAGAMI, Ohji ,  TABATABAI, Ali

IPC: H04N19/90

Abstract: A point cloud coding structure defines a "key" point cloud frame, where all references used for predicting point cloud patches are limited to the current point cloud frame. A point cloud patch buffer is described, where the list of reference patches and their respective bounding boxes from a point cloud frame are stored to be used for prediction of patches in another frame. The list of reference patches may contain patches from the past and patches from the future, in case the coding order of point cloud frames is allowed to be different from the presentation order, and bi-directional prediction is used. A similar reference buffer list concept is able to be applied to the layers of the point cloud. A signaling method that correlates the blocks of V-PCC by signaling within the payload the reference to the ID of the block containing the higher-level information is also described.

公开(公告)号：WO2015194078A1

公开(公告)日：2015-12-23

申请号：PCT/JP2015/002033

申请日：2015-04-10

Applicant: SONY CORPORATION

Inventor： NAKAGAMI, Ohji

IPC: H04N19/70 ,  H04N19/33 ,  H04N19/105 ,  H04N19/159 ,  H04N19/186 ,  H04N19/187 ,  H04N19/463 ,  H04N19/59 ,  H04N19/96

CPC classification number: H04N19/34 ,  H04N19/105 ,  H04N19/159 ,  H04N19/186 ,  H04N19/187 ,  H04N19/33 ,  H04N19/463 ,  H04N19/59 ,  H04N19/70 ,  H04N19/96

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 translation: 提供了一种图像处理装置，其包括被配置为通过使用查找表从第一层的图像预测具有与第一层不同的像素属性的第二层的图像的电路，其中，亮度分量 ，第一层的第一色度分量和第二色度分量被映射到对应于组合的第二层的预测像素值，其中通过使用第一查找获取第二层的亮度分量的预测值 表，并且通过使用与第一查找表的粒度不同的粒度的第二查找表来获取第二层的第一色度分量的预测值。

公开(公告)号：WO2015146051A1

公开(公告)日：2015-10-01

申请号：PCT/JP2015/001397

申请日：2015-03-12

Applicant: SONY CORPORATION

Inventor： NAKAGAMI, Ohji ,  HATTORI, Shinobu

IPC: H04N19/70 ,  H04N19/30

CPC classification number: H04N19/39 ,  H04N19/17 ,  H04N19/30 ,  H04N19/46 ,  H04N19/70

Abstract: There is provided an image coding apparatus including: circuitry configured to set a correspondence relationship between resolution information and an enhancement layer, in a case where the number of the layers is greater than the number of multiple candidates for the resolution information on a layer of an image; and code the image and generate a bitstream including information relating to the set correspondence relationship.

Abstract translation: 提供了一种图像编码装置，包括：电路，被配置为设置分辨率信息和增强层之间的对应关系，在层的数量大于对于层的分辨率信息的多个候选的数量的情况下 图片; 并对图像进行编码并生成包括与所设置的对应关系有关的信息的比特流。