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Three-dimensional face model generation method and device

A 3D face and model technology, applied in the field of image processing, can solve the problems of low accuracy and high cost of depth information of face images

Pending Publication Date: 2020-11-17
重庆灵翎互娱科技有限公司
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Problems solved by technology

[0006] The invention provides a method and device for generating a three-dimensional face model, which is used to solve the technical problem of high cost or low accuracy in obtaining depth information of a face image in the prior art, and is generated in advance based on training data and a preset neural network structure. A neural network model is preset, and the method includes:

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  • Three-dimensional face model generation method and device

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Embodiment Construction

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0047] The face is the most important and direct carrier of human daily expression and communication. The 3D face model has always attracted much attention. It has a very broad application prospect in the fields of games, film and television special effects, virtual reality, and auxiliary medical treatment.

[0048] As mentioned in the background technology, in the existing technology to generate a 3D face model, one is to introduce a depth detection and sensing system. This type of system r...

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Abstract

The invention discloses a three-dimensional face model generation method and device, and the method comprises the steps: generating a preset neural network model in advance based on training data anda preset neural network structure, receiving a to-be-processed face image, and obtaining the depth information of the to-be-processed face image based on the preset neural network model, wherein the depth information comprises a pixel depth, an expression coefficient, a pixel texture and a spherical harmonic illumination coefficient, and generating a three-dimensional face model of the to-be-processed face image according to the depth information and a preset standard three-dimensional face model, wherein the training data comprises a preset face image and a real pixel depth, a real expressioncoefficient, a real pixel texture and a real spherical harmonic illumination coefficient of the preset face image, so that the accuracy of obtaining the depth information of the face image is improved on the basis of not increasing the cost; and the similarity between the generated three-dimensional face model and the face image is improved.

Description

technical field [0001] The present application relates to the technical field of image processing, and more specifically, to a method and device for generating a three-dimensional face model. Background technique [0002] In the process of scanning the face through the camera to form a 3D face reconstruction, it is necessary to obtain the depth information of the face to restore the face model. [0003] In the prior art, in order to obtain the depth information of the face, it is usually necessary to introduce a depth detection sensing system, such as the original deep-sensing camera system in FaceID. This type of system requires an infrared lens, a flood sensing element, a distance sensor, and an ambient light sensor. , dot matrix projector and other components work together. As a result, there is a general defect. On the one hand, this method is limited by the model and operating system of the camera, and on the other hand, the cost of the camera equipment is high. [0...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00G06T15/50G06N3/04G06N3/08
CPCG06T17/00G06T15/50G06N3/084G06N3/08G06N3/045
Inventor 徐博
Owner 重庆灵翎互娱科技有限公司