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3D face prop mapping method, terminal and storage medium

A face image and 3D technology, applied in the field of image processing, can solve problems such as the inability to accurately align vertices, achieve the effect of removing technical dependence, improving the fitting effect, and fast execution speed

Pending Publication Date: 2021-03-16
MIGU CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a 3D face prop mapping method, terminal and storage medium, which solves the problem that the 3D face prop mapping in the prior art cannot realize the specific vertices in the 3D model props and the specific vertices in the 2D human face fine alignment problem

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  • 3D face prop mapping method, terminal and storage medium
  • 3D face prop mapping method, terminal and storage medium
  • 3D face prop mapping method, terminal and storage medium

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Embodiment Construction

[0050] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, various implementation modes of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in this application can also be realized. The division of the following embodiments is for the convenience of description, and should not constitute any limitation to the specific implementation of the present invention, and the various embodiments can be combined and referred to each other on the premise of no contradiction.

[0051] The terms "first...

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Abstract

The embodiment of the invention relates to the technical field of image processing, in particular to a 3D face prop mapping method, a terminal and a storage medium, and the method comprises the steps:estimating the accurate 3D spatial position of a 2D face key point in a to-be-processed face image of a current frame before projection through a fixed-point reverse projection method; achieving point-to-point accurate alignment between the 3D face prop to be mapped and the current frame of to-be-processed face image, wherein real-time face 3D shape reconstruction does not need to be carried out,dependence on the 3D face key point technology is removed, the execution speed is high, and smooth operation can be carried out in a high-end machine and a low-end machine.

Description

technical field [0001] The embodiments of the present application relate to the technical field of image processing, and in particular to a method for mapping 3D facial props, a terminal, and a storage medium. Background technique [0002] 3D face props map is to map 3D props to 2D faces. This function is relatively common in AR product applications on mobile phones, such as Douyin, Kuaishou and other applications. There are mainly two existing methods for implementing this function. The first is to perform 3D reconstruction on the 2D face shape (shape) to obtain the key points of the 3D face with depth information, and then combine the vertices in the 3D props with the reconstructed 3D Align the key points of the face and complete the prop map; the second is to estimate the optimal projection geometric parameters from a 3D reference face shape to a 2D face shape based on the PnP (Perspective-n-Point, perspective N-point projection) method, such as scaling , translation, ro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T3/00G06T15/20G06T3/60G06T3/40G06K9/00
CPCG06T15/205G06T3/4084G06T3/60G06V40/165G06V40/172G06V40/171G06T3/04
Inventor 李琳张学成张犁
Owner MIGU CO LTD