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Point cloud encoding and decoding method and encoder-decoder

A point cloud and decoding technology, applied in the field of encoding and decoding, can solve problems such as holes

Active Publication Date: 2020-04-07
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application provides a point cloud encoding and decoding method and a codec, which to a certain extent solves the problem of holes appearing on the boundary of the patch when reconstructing the point cloud
By performing a conditional expansion operation on the occupancy map of the point cloud to be decoded and adding some outlier points, the outlier points generated when the point cloud is smooth can be filtered out to a certain extent, and the reconstructed point cloud can appear on the boundary of the patch The holes are filled, which solves the problem of holes appearing on the border of the patch when rebuilding the point cloud

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  • Point cloud encoding and decoding method and encoder-decoder

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Embodiment Construction

[0121] The term "at least one (species)" in the embodiments of the present application includes one (species) or more (species). "Multiple (species)" means two (species) or more than two (species). For example, at least one of A, B and C includes: A alone, B alone, A and B at the same time, A and C at the same time, B and C at the same time, and A, B and C at the same time. In the description of this application, unless otherwise specified, " / " means or means, for example, A / B can mean A or B; "and / or" in this article is just a description of the relationship between associated objects, Indicates that there may be three relationships, for example, A and / or B, may indicate: A exists alone, A and B exist simultaneously, and B exists alone. "A plurality" means two or more than two. In addition, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are ...

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Abstract

The invention discloses a point cloud encoding and decoding method and an encoder-decoder, relates to the technical field of encoding and decoding, and the method and the encoder-decoder are helpful for solving the problem that holes appear on the boundary of a patch during point cloud reconstruction. The point cloud transcoding method (including the point cloud encoding method or the point clouddecoding method) comprises the steps of performing expansion processing on a to-be-processed boundary pixel block in an occupation graph of a to-be-transcoded point cloud to obtain an expanded boundary pixel block; and reconstructing the to-be-transcoded point cloud according to the processed occupation graph, the processed occupation graph comprising the boundary pixel blocks after expansion processing.

Description

technical field [0001] The present application relates to the field of codec technology, and in particular to a point cloud codec method and a codec. Background technique [0002] With the continuous development of 3D sensor (such as 3D scanner) technology, it is more and more convenient to collect point cloud data, and the scale of the collected point cloud data is also increasing. Therefore, how to effectively encode and decode point cloud data , has become an urgent problem to be solved. How to effectively store massive point cloud data has become an urgent problem to be solved. High-quality compression, storage and transmission of point clouds becomes very important. [0003] In order to save the code stream, when encoding the occupancy map of the point cloud to be decoded, the pixel block with the size of B0xB0 is used to fill the occupancy map of the point cloud to be decoded. The filling method is: traverse each occupancy map of the point cloud to be decoded A pixe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/117H04N19/44H04N19/85H04N19/70H04N19/46H04N19/48H04N19/182
CPCH04N19/117H04N19/44H04N19/85H04N19/70H04N19/46H04N19/48H04N19/182
Inventor 张德军王田蔡康颖
Owner HUAWEI TECH CO LTD