Method and device for encoding or decoding three-dimensional data point set

A technology of three-dimensional data and encoding method, which is applied in the field of information processing, can solve the problems of obvious time complexity cost, restricted compression rate, large time overhead, etc., and achieve the effect of avoiding high encoding complexity and improving compression rate

Active Publication Date: 2020-06-05
SZ DJI TECH CO LTD
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Problems solved by technology

[0005] However, this encoding method needs to build a hierarchical structure. When selecting the adjacent reference point for the position of each 3D data point set, it needs to traverse all the 3D data points multiple times. This method will have a large time in encoding and decoding. Overhead, especially when the amount of data in the three-dimensional data point set is large, the cost of t

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  • Method and device for encoding or decoding three-dimensional data point set
  • Method and device for encoding or decoding three-dimensional data point set
  • Method and device for encoding or decoding three-dimensional data point set

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[0037] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

[0038] Unless otherwise specified, all technical and scientific terms used in the embodiments of the present application have the same meaning as commonly understood by those skilled in the technical field of the present application. The terminology used in this application is only for the purpose of describing specific embodiments, and is not intended to limit the scope of this application.

[0039] The three-dimensional data point set may be composed of discrete three-dimensional data p...

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Abstract

The embodiment of the application provides a method and device for encoding or decoding a three-dimensional data point set, which can simplify an encoding method, reduce the time overhead of encodingand decoding, and improve the compression rate. The method comprises the following steps: carrying out position coordinate coding on the position coordinate of at least one three-dimensional data point in the three-dimensional data point set to obtain a first binary code stream; according to the position coordinate sequence of the at least one three-dimensional data point after the position coordinate coding, carrying out binarization coding on the attribute of the at least one three-dimensional data point to obtain a second binary code stream; and carrying out entropy coding on the first binary code stream and the second binary code stream.

Description

[0001] Copyright statement [0002] The content disclosed in this patent document contains copyrighted material. The copyright belongs to the copyright owner. The copyright owner does not object to anyone copying the patent document or the patent disclosure in the official records and archives of the Patent and Trademark Office. Technical field [0003] This application relates to the field of information processing, and more specifically, to a method and device for encoding or decoding a three-dimensional data point set. Background technique [0004] A three-dimensional data point set is a representation of a three-dimensional object or scene. It is composed of a set of discrete points that are randomly distributed in space and express the spatial structure and surface properties of the three-dimensional object or scene. The data of a three-dimensional data set can be It includes three-dimensional coordinates describing the coordinate information, and further includes attributes ...

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Application Information

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IPC IPC(8): H04N19/13H04N19/124H04N19/184H04N19/42
CPCH04N19/13H04N19/184H04N19/124H04N19/42H04N19/96H04N19/176G06T9/001G06T9/005G06T9/40
Inventor 李璞郑萧桢
Owner SZ DJI TECH CO LTD
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