Method and apparatus for decoding three-dimensional scenes

A pixel and source image technology, applied in the field of decoding 3D scenes and devices, can solve problems such as ghosting in viewport images

Pending Publication Date: 2022-02-15
INTERDIGITAL VC HLDG INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These errors and inaccuracies often lead to ghosting effects in the viewport image when the reconstructed colored point cloud is captured by a virtual camera that is not centered in the projection of the source image

Method used

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  • Method and apparatus for decoding three-dimensional scenes
  • Method and apparatus for decoding three-dimensional scenes
  • Method and apparatus for decoding three-dimensional scenes

Examples

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Embodiment Construction

[0022] The present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which examples of the disclosure are shown. This disclosure may, however, be embodied in many alternative forms and should not be construed as limited to the examples set forth herein. Therefore, while the present disclosure is 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 disclosure 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 disclosure as defined by the claims .

[0023] The terms used herein are for describing specific examples only, and are not intended to limit the present disclosure. As used herein, unless the context clearly ...

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PUM

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Abstract

Disclosed is a method for generating an image from a source image for encoding a projection of a part of a three-dimensional scene. Pixels of the source image comprise a depth and a color attribute. Pixels of the source image are de-projected as colored point cloud. A de-projected point in a 3D space has the color attribute of the pixel that it has been de-projected from. Also, a score is attributed to the generated point according to a local depth gradient and / or a local color gradient of the pixel that the generated point comes from, and the lower the gradient is, the higher the score is. In a second step, the generated point cloud is captured by a virtual camera for rendering on a display device. The point cloud is projected onto a viewport image by blending color of points projected on a same pixel, the blending being weighted by the scores of these points.

Description

technical field [0001] The present disclosure generally relates to decoding three-dimensional scenes including three-dimensional (3D) objects. In particular, but not exclusively, the technical field of the present disclosure relates to decoding depth and texture image data obtained by projecting points of a 3D scene to represent the geometry and color of the 3D scene. 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 disclosure that are described and / or claimed below. It is believed that this discussion helps to provide the reader with background information to facilitate a better understanding of various aspects of the present disclosure. Accordingly, it should be understood that these statements are to be read in this light, and not as admissions of prior art. [0003] Point clouds are sets of points that are typically used to represent the outer surfaces of 3D ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/597H04N19/70H04N19/184H04N13/257H04N13/122H04N19/42H04N13/363
CPCH04N19/597H04N19/70H04N19/184H04N13/257H04N13/122H04N19/42H04N13/363G06T9/00G06T15/20G06T15/503
Inventor J.弗勒罗G.布里安德R.多尔
Owner INTERDIGITAL VC HLDG INC
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