US 12,183,045 B2 · Mesh patch simplification

Abstract

Ways to simplify connectivity data for patches are described herein. The patches are generated considering the high-resolution mesh information. The connectivity data is simplified at the patch level, while the geometry image is still preserved. For the connectivity simplification, only triangles inside the patch are simplified. If the border is still preserved, the reconstruction in 3D will not suffer from artifacts. The high-resolution geometry image can be used to reverse the simplification and improve the connectivity at the decoder side. Three embodiments of patch mesh simplification are described: quadric error edge collapse, border distance edge collapse, and border triangles only.

Claims17

Dependent claims

A method programmed in a non-transitory memory of a device comprising:

generating a patch;
and
performing two dimensional patch mesh simplification to generate a new face list and a new vertex list, wherein performing the two dimensional patch mesh simplification comprises a border triangles only implementation, wherein the border triangles only implementation comprises rotating a triangle so a first edge of the triangle is at a border.

Dependencies are inferred from the claim text.

Facts

Application

17/987,841Filed 15 Nov 2022 · us provisional application

Priority

25 Mar 2022

Published

US 2023/0306643 A128 Sep 2023

Granted

31 Dec 2024

Term ends

Not estimatedThe source records don’t support an estimate.

Classification4 codes

G06T 9/001
Image coding: model-based coding, e.g. wire frame
H04N 19/597
Using predictive coding: specially adapted for multi-view video sequence encoding
G06T
Image data processing or generation, in general
H04N
Pictorial communication

Mesh patch simplification

Life of this patent

Mesh patch simplification

Life of this patent

Abstract

Claims17