Three-dimensional face representation method and parameter measurement device and method thereof

A three-dimensional face and parameter measurement technology, applied in image data processing, 3D modeling, instruments, etc., can solve the problems of inaccurate face images, lack of face material attributes, etc., to achieve measurement and improve face recognition rate , to achieve the effect of accurate separation

Active Publication Date: 2021-04-20
SICHUAN UNIV
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Problems solved by technology

[0004] The purpose of this application is to provide a three-dimensional face representation method and its parameter measurement device and method, which are used to effectively improve the lack of face material attributes existing in the prior art, making it inaccurate to generate face images under new lighting conditions technical flaws

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  • Three-dimensional face representation method and parameter measurement device and method thereof
  • Three-dimensional face representation method and parameter measurement device and method thereof
  • Three-dimensional face representation method and parameter measurement device and method thereof

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Embodiment Construction

[0021] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0022]It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

[0023] The currently proposed 3D face model is constructed from the 3D space coordinates and texture values ​​of sampling points on the face, where the texture values ​​are values ​​corresponding to the R, G, and B channels. However, the texture value is a combined effect of the inherent face geometry, skin properties, and external acquisition ambient lighting ...

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Abstract

The invention provides a three-dimensional face representation method and a parameter measurement device and method thereof, the device comprises a data acquisition module set, a light source array group module, a support and a processing terminal, the data acquisition module set is connected with the processing terminal, and the light source array group module is arranged on the support; the data acquisition module group is used for measuring and reconstructing the geometrical parameters of the human face of the measured object and the reflection parameters of the skin surface, the data acquisition module group comprises a pair of data acquisition modules, and the data acquisition modules are arranged in a bilateral symmetry mode and are both arranged to form a first preset angle with the plane which is perpendicular to the ground and intersects with the support; the light source array group module is used for generating mirror reflection light in each area of the skin surface of the measured object; and the processing terminal is used for receiving the data which is transmitted from the data acquisition module and is related to the measurement of the geometrical parameters and the reflection parameters, processing and reconstructing the measured object, and can construct a face database which is beneficial to improving the face recognition rate.

Description

technical field [0001] The present application relates to the technical fields of computer graphics and image processing, in particular, to a three-dimensional human face representation method and its parameter measurement device and method. Background technique [0002] Providing face image data with rich lighting and poses is the key to improving the robustness of deep face recognition networks to poses and lighting. However, the current face database construction technology is difficult to collect face images containing a large number of different illuminations and poses. With the development of sensing technology, the acquisition of high-precision 3D face models has become a reality. Based on the collected 3D face models, face images under new lighting and new postures are generated according to computer rendering technology to construct large-scale, high-quality facial images. The face image library can provide sufficient data for the training of the deep neural networ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/20
Inventor 游志胜刘艳丽邢冠宇
Owner SICHUAN UNIV
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