公开(公告)号：US20210099711A1

公开(公告)日：2021-04-01

申请号：US17031782

申请日：2020-09-24

Applicant: Apple Inc.

Inventor： Alexandros Tourapis ,  Jungsun Kim ,  Khaled Mammou ,  Liviu Traian Christian Tulvan ,  Marius Preda

IPC: H04N19/139 ,  H04N19/107 ,  H04N19/147 ,  G06T9/00 ,  H04N19/96

Abstract: A system comprises an encoder configured to compress attribute information for a dynamic point cloud and/or a decoder configured to decompress compressed attribute information for a dynamic point cloud. The dynamic point cloud may include multiple versions of the point cloud at multiple moments in time Attribute values for the point cloud may be compressed at a reference frame using an intra-prediction process and may be compressed at one or more reference frames using an inter-prediction process that takes advantage of temporal relationships between different frames (e.g. versions) of the dynamic point cloud at the different moments in time.

公开(公告)号：US11202078B2

公开(公告)日：2021-12-14

申请号：US17031782

申请日：2020-09-24

Applicant: Apple Inc.

Inventor： Alexandros Tourapis ,  Jungsun Kim ,  Khaled Mammou ,  Liviu Traian Christian Tulvan ,  Marius Preda

IPC: H04N19/139 ,  H04N19/107 ,  G06T9/00 ,  H04N19/96 ,  H04N19/147 ,  H04N19/172

Abstract: A system comprises an encoder configured to compress attribute information for a dynamic point cloud and/or a decoder configured to decompress compressed attribute information for a dynamic point cloud. The dynamic point cloud may include multiple versions of the point cloud at multiple moments in time Attribute values for the point cloud may be compressed at a reference frame using an intra-prediction process and may be compressed at one or more reference frames using an inter-prediction process that takes advantage of temporal relationships between different frames (e.g. versions) of the dynamic point cloud at the different moments in time.