Face attribute analysis method and device

An attribute analysis and attribute technology, applied in the field of image processing, can solve the problem of low accuracy rate of face attribute analysis, and achieve the effect of increasing the amount of training data, improving the accuracy rate and improving the accuracy.

Pending Publication Date: 2021-11-12
HANGZHOU HIKVISION DIGITAL TECH
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Problems solved by technology

However, the current face attribute analysis is based on two-dimensional face images, and two-dimensional face images are adversely affected by factors such as face posture, expression, and illumination, which leads to low accuracy of face attribute analysis.

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  • Face attribute analysis method and device
  • Face attribute analysis method and device

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Embodiment Construction

[0083] 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 making creative efforts belong to the scope of protection of this application.

[0084] Face attributes include gender, age, expression, wearing glasses, wearing a hat, etc.

[0085] At present, the process of face attribute analysis is as follows: acquiring a two-dimensional face image, performing face attribute analysis on the two-dimensional face image, and obtaining attribute values ​​of preset face attributes. However, two-dimensional face images are adversely affected by factors such as facial pose, expression, and illumination, which lead to a low accurac...

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Abstract

The embodiment of the invention provides a face attribute analysis method and device. The method comprises the following steps: acquiring a basic two-dimensional face image and a basic three-dimensional face point cloud of a target face; rendering the basic three-dimensional face point cloud to a two-dimensional image to obtain a rendered two-dimensional face image; superposing the basic two-dimensional face image and the rendered two-dimensional face image to obtain target input data; inputting the target input data into a preset analysis model to obtain target attribute values of a plurality of preset face attributes of the target face, the preset analysis model being a model obtained by training a preset neural network by using a preset training set, the preset training set comprising sample two-dimensional face images and sample three-dimensional face point clouds of a plurality of sample faces, and the sample attribute values of the multiple preset face attributes of each sample. By applying the technical scheme provided by the embodiment of the invention, the accuracy of face attribute analysis is improved.

Description

technical field [0001] The present application relates to the technical field of image processing, in particular to a face attribute analysis method and device. Background technique [0002] In recent years, face attribute analysis has been widely used in multimedia, social network, computer vision and other fields. Face attribute analysis can be understood as: analyzing the face image, and giving the attribute value of the face image, such as "whether you wear glasses", "whether you wear a hat", "whether you smile", etc. However, the current face attribute analysis is based on two-dimensional face images, and two-dimensional face images are adversely affected by factors such as facial posture, expression, and illumination, which leads to low accuracy of face attribute analysis. Contents of the invention [0003] The purpose of the embodiments of the present application is to provide a face attribute analysis method and device, so as to improve the accuracy of face attrib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/60G06N3/04G06N3/08G06T3/00
CPCG06T7/60G06T3/0037G06N3/08G06T2207/10028G06N3/045
Inventor 程海敬
Owner HANGZHOU HIKVISION DIGITAL TECH
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