公开(公告)号：EP3493158A1

公开(公告)日：2019-06-05

申请号：EP17306698.6

申请日：2017-12-04

申请人： THOMSON LICENSING

发明人： LASSERRE, Sébastien ,  RICARD, Julien ,  GUEDE, Céline

IPC分类号： G06T9/40 ,  H04N19/597 ,  H04N19/147 ,  H04N19/96 ,  H04N19/593 ,  H04N19/11 ,  H04N19/107 ,  H04N19/19 ,  H04N19/54

摘要： A method for encoding the geometry of a point cloud (IPC) representing a 3D object comprising:
a) determining (120) if a local octree-based structure (O k ) is associated with an encompassing cube including at least one point of the point cloud (IPC);
b) encoding (130) a first leaf node information data (FLID) indicating if a local octree-based structure (O k ) has been determined for said encompassing cube (C);
c) if said first leaf node information data (FLID) indicates that a local octree-based structure (O k ) has been determined for said encompassing cube (C),
d) encoding (140) an octree information data (SOID) representative of said determined local octree-based structure (Ok); and
e) encoding a (150) local coding model information data (IND) representing a local coding model defining a set of points resulting from a processing of a part of the point cloud.

公开(公告)号：EP3467783A1

公开(公告)日：2019-04-10

申请号：EP17306346.2

申请日：2017-10-06

申请人： Thomson Licensing

发明人： CAI, Kangying ,  LLACH PINSACH, Joan ,  GUEDE, Céline

IPC分类号： G06T17/00

摘要： This method for hole filling of a point cloud having at least one hole comprises:
- detecting (2) boundary points of the point cloud;
- grouping (12) the detected boundary points in boundary regions based on their spatial adjacency;
- covering (16) each boundary region with at least one plane; and
- inserting (18) new points in the point cloud using the planes covering the boundary regions.

公开(公告)号：EP3185456A1

公开(公告)日：2017-06-28

申请号：EP16204139.6

申请日：2016-12-14

申请人： Thomson Licensing

发明人： GUEDE, Céline ,  LLACH, Joan ,  FONTAINE, Loïc

IPC分类号： H04L1/08 ,  H04L1/02 ,  H04L29/06 ,  H04L12/841

CPC分类号： H04L65/4076 ,  H04L1/0045 ,  H04L1/02 ,  H04L1/08 ,  H04L1/20 ,  H04L43/0829 ,  H04L47/283 ,  H04L65/4015 ,  H04L65/608 ,  H04L65/80 ,  H04W24/08

摘要： In a staggercasting system, a receiver estimates a delivery time of a packet from a main stream and, if the packet from the main stream is not received at the estimated delivery time, the receiver substitutes a corresponding packet from the stagger stream. As a result, a loss can be detected quicker since the receiver does not have to wait until detection of a missing sequence number and, therefore, the receiver can accommodate the time of presentation such that the user does not suffer a loss in quality of service.

公开(公告)号：EP3185455A1

公开(公告)日：2017-06-28

申请号：EP15307072.7

申请日：2015-12-21

申请人： Thomson Licensing

发明人： GUEDE, Céline ,  LLACH PINSACH, Joan ,  FONTAINE, Loïc

IPC分类号： H04L1/08 ,  H04L1/02 ,  H04L29/06 ,  H04L12/841

CPC分类号： H04L65/4076 ,  H04L1/0045 ,  H04L1/02 ,  H04L1/08 ,  H04L1/20 ,  H04L43/0829 ,  H04L47/283 ,  H04L65/4015 ,  H04L65/608 ,  H04L65/80 ,  H04W24/08

摘要： In a staggercasting system, a receiver estimates a delivery time of a packet from a main stream and, if the packet from the main stream is not received at the estimated delivery time, the receiver substitutes a corresponding packet from the stagger stream. As a result, a loss can be detected quicker since the receiver does not have to wait until detection of a missing sequence number and, therefore, the receiver can accommodate the time of presentation such that the user does not suffer a loss in quality of service.

摘要翻译： 在交错播送系统中，接收器估计来自主流的分组的传送时间，并且如果在估计的传送时间没有接收到来自主流的分组，则接收器用来自交错流的对应分组替代。 结果，可以更快地检测到丢失，因为接收机不必等待直到检测到丢失的序列号为止，并且因此接收机可以适应呈现时间，使得用户不会遭受服务质量的损失 。

公开(公告)号：EP3474233A1

公开(公告)日：2019-04-24

申请号：EP17306420.5

申请日：2017-10-19

申请人： Thomson Licensing

发明人： LASSERRE, Sébastien ,  GUEDE, Céline ,  CHEVET, Jean-Claude

IPC分类号： G06T9/40 ,  H04N19/597 ,  H04N19/147 ,  H04N19/13 ,  H04N19/96 ,  H04N19/20

摘要： The present principles generally relate to encoding and decoding of a point cloud representing the geometry of a point cloud representing a 3D object.
According to the invention, prediction is used in the encoding process of the splitting information of the local octree-based structure and/or in the encoding process of the occupancy information of the leaf cubes of the local octree-based structure. A predictor of the local octree-based structure is used for determining the context of the context-dependent entropy encoding in order to reduce the number of bits needed for the octree encoding.

公开(公告)号：EP3474232A1

公开(公告)日：2019-04-24

申请号：EP17306424.7

申请日：2017-10-19

申请人： Thomson Licensing

发明人： RICARD, Julien ,  GUEDE, Céline ,  CAI, Kangying

IPC分类号： G06T9/00

摘要： The present invention concerns a method for encoding a rotation matrix comprising the step of:
- associating (S1) an integer value with each of a number N of trigonometric function values, each trigonometric function value being associated with an angle value,
- determining (S2) at least one trigonometric function value representing said rotation matrix,
- determining (S3) at least one of said integer values to be associated with said at least one trigonometric function value representing said rotation matrix,
- encoding (S4) said at least one integer value in order to generate a bitstream.

公开(公告)号：EP3185456B1

公开(公告)日：2019-02-06

申请号：EP16204139.6

申请日：2016-12-14

申请人： Thomson Licensing

发明人： GUEDE, Céline ,  LLACH, Joan ,  FONTAINE, Loïc

IPC分类号： H04L1/08 ,  H04L1/02 ,  H04L29/06 ,  H04L12/841 ,  H04L12/26 ,  H04L1/00 ,  H04L1/20 ,  H04W24/08

公开(公告)号：EP3467789A1

公开(公告)日：2019-04-10

申请号：EP17306350.4

申请日：2017-10-06

申请人： Thomson Licensing

发明人： GUEDE, Céline ,  RICARD, Julien ,  CAI, Kangying

IPC分类号： G06T19/00

摘要： The present invention concerns a method for reconstructing a point cloud representing a 3D object from an inverse-projected point cloud (IPPC) obtained by inverse-projecting at least one depth image of an original point cloud, said at least one depth image being obtained by projecting the points of the original point cloud onto at least one surface, said method comprising the steps of:
- detecting (900) at least one missing part (MPq) in the inverse-projected point cloud (IPPC), and
- completing (910) said at least one missing part (MPq) based on points in the neighborhood of said at least one missing part.

公开(公告)号：EP3467784A1

公开(公告)日：2019-04-10

申请号：EP17306347.0

申请日：2017-10-06

申请人： Thomson Licensing

发明人： CAI, Kangying ,  GUEDE, Céline ,  LLACH PINSACH, Joan ,  LASSERRE, Sébastien

IPC分类号： G06T17/00

摘要： This method for up-sampling a point cloud representing a 3D object, comprises:
- detecting (2) points belonging to at least one under-sampled region of the point cloud on the basis of at least one desirable sampling rate (K);
- obtaining (12), for each detected point, an associated tangent plane;
- inserting (14) in the point cloud at least one neighboring point of each detected point if a distance between the neighboring point and the tangent plane associated with the detected point is less than a first threshold.

公开(公告)号：EP3162033A1

公开(公告)日：2017-05-03

申请号：EP15733674.4

申请日：2015-06-25

申请人： Thomson Licensing

发明人： CHAMPEL, Mary-Luc ,  DECENEUX, Alexandre ,  GUEDE, Céline ,  RICARD, Julien ,  LLACH PINSACH, Joan ,  AUMONT, Franck

IPC分类号： H04L29/08 ,  H04L29/06 ,  H04N21/00

CPC分类号： H04N21/8543 ,  H04L65/4084 ,  H04L67/02 ,  H04N21/23412 ,  H04N21/2362 ,  H04N21/2368 ,  H04N21/4307 ,  H04N21/4312 ,  H04N21/4358 ,  H04N21/4586 ,  H04N21/8456

摘要： The invention concerns providing for each media package a plurality of spatial composition datasets and for each spatial composition datasets a plurality of temporal composition datasets. The invention may be applied to MMT data.

摘要翻译： 本发明涉及为每个媒体包提供多个空间组成数据集并为每个空间组成数据集提供多个时间组成数据集。 本发明可以应用于MMT数据。