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Dynamic point cloud projection compression method, system, device and medium

A compression method and cloud projection technology, applied in stereo systems, image communication, electrical components, etc., can solve the problems of high compression ratio and low compression efficiency, and achieve the effect of reducing size and high compression efficiency

Active Publication Date: 2020-08-14
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the compression efficiency of this test scheme is still relatively low, which cannot meet the requirements of high compression ratio, and there is still room for improvement in the processing of point cloud data.

Method used

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  • Dynamic point cloud projection compression method, system, device and medium
  • Dynamic point cloud projection compression method, system, device and medium
  • Dynamic point cloud projection compression method, system, device and medium

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Embodiment Construction

[0043] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0044] The dynamic point cloud projection compression method of the present invention comprises the following steps:

[0045] Step 1, divide the original point cloud into segments and obtain segment information;

[0046] Step 2, fitting the segment information to generate a segment information video;

[0047] Step 3, compressing segment information video and parameter information to generate a mixed code stream.

[0048] Step 1 includes:

[0049] Step 1.1, dividing the original point cloud into point...

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Abstract

The invention relates to a dynamic point cloud projection compression method, system and device and a medium. The method comprises the following steps: step 1, carrying out fragment division on original point cloud and obtaining fragment information; 2, fitting the fragment information to generate a fragment information video; and 3, compressing the fragment information video and the parameter information to generate a mixed code stream. Compared with the prior art, the method has the beneficial effects that the geometric information of the point cloud is fitted through fewer parameters, so that the size of the geometric information needing to be compressed is reduced, and finally higher compression efficiency is brought.

Description

technical field [0001] The invention relates to the application field of 3D media data compression and transmission, in particular to a projection compression and transmission method for 3D dynamic point cloud data based on polynomial fitting. Background technique [0002] With the increasing development of media rendering and transmission technologies, people have higher and higher requirements for media consumption, and require more detailed and realistic image and video experience, more brilliant colors, and clearer pictures. Therefore, we have turned our research direction on future media to the development direction that satisfies the immersive experience, so that users can obtain a more refined and real media experience. Therefore, the representation form of media data is more refined and diversified. Among them, with the rapid development of 3D acquisition equipment, point cloud data has shown more and more prominent advantages in the performance of immersive experien...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N13/161H04N19/85
CPCH04N19/85
Inventor 徐异凌徐英展朱文婕贺兰懿管云峰柳宁
Owner SHANGHAI JIAOTONG UNIV