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Method and apparatus for encoding/decoding colored point cloud representing geometry and colors of 3D object

An encoding and point cloud technology, applied in the field of encoding/decoding, which can solve problems such as low octree compression efficiency

Pending Publication Date: 2020-03-06
INTERDIGITAL VC HLDG INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sadly, there is one big downside: on smooth geometries, the state of the art with octrees

Method used

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  • Method and apparatus for encoding/decoding colored point cloud representing geometry and colors of 3D object
  • Method and apparatus for encoding/decoding colored point cloud representing geometry and colors of 3D object
  • Method and apparatus for encoding/decoding colored point cloud representing geometry and colors of 3D object

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Embodiment Construction

[0067] The present principles will be described more fully hereinafter with reference to the accompanying drawings, examples of which are shown. The present principles may, however, be embodied in many alternative forms and should not be construed as limited to the examples set forth herein. Thus, while the present principles are susceptible to various modifications and alternative forms, specific examples thereof are shown by way of illustration in the drawings and will be described in detail herein. It should be understood, however, that there is no intent to limit the principles to the particular forms disclosed, but on the contrary, this disclosure is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the principles as defined by the claims things.

[0068] The terminology used herein is for the purpose of describing particular examples only and is not intended to be limiting of the present principles. As used herein, the sin...

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PUM

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Abstract

The present principles relate to a method and a device for encoding an input colored point cloud representing the geometry and colors of a 3D object. The method comprises: a) determining an octree-based coding mode (OCM) associated with an encompassing cube (C) including points of a point cloud for encoding said points (P or ) of the point cloud by a octree-based structure; b) determining a projection-based coding mode (PCM) associated with said encompassing cube (C) for encoding said points (P or ) of the point cloud by a projection-based representation; c) encoding said points (P or ) of thepoint cloud according to a coding mode associated with the lowest coding cost; and d) encoding a coding mode information data (CMID) representative of the coding mode associated with the lowest cost.

Description

technical field [0001] The present principles generally relate to the encoding and decoding of colored point clouds representing the geometry and color of 3D objects. In particular, but not exclusively, the technical field of the present principles relates to the encoding / decoding of 3D image data using texture and depth projection schemes. Background technique [0002] This section is intended to introduce the reader to various aspects of art, which may be related to various aspects of the present principles that are described and / or claimed below. This discussion is considered helpful in providing the reader with background information to facilitate a better understanding of various aspects of the present principles. Accordingly, it should be understood that these statements are to be read in this light, and not as admissions of prior art. [0003] A point cloud is a collection of points, usually intended to represent the outer surfaces of 3D objects, but also more compl...

Claims

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Application Information

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IPC IPC(8): H04N19/597G06T17/00G06T17/10G06T9/40H04N19/96H04N19/20H04N19/147H04N19/103H04N19/46
CPCG06T9/40H04N19/597H04N19/147H04N19/46H04N19/96H04N19/103H04N19/20H04N19/186
Inventor S.拉塞雷J.理查德J.拉克平萨克
Owner INTERDIGITAL VC HLDG INC
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