Age assessment method based on face recognition technology

A face recognition and technology technology, applied in the application field of image recognition and pattern recognition, can solve the problems of differences in the feature values ​​of people in the same age group, not considering the differences in facial features, and unable to establish feature vectors, etc. Effects of Accuracy, Wide Applicability

Active Publication Date: 2009-11-25
无锡骏聿科技有限公司
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Problems solved by technology

[0004] There are two key flaws in the current assessment method: first, it does not take into account the differences in facial features caused by factors such as race, gender, and living environment, which leads to the limitation of age assessment, that is, it can only guarantee the age of the assessed person. Higher accuracy is achieved when face images are consistent in terms of race, gender, etc.
The second is that even if the current technology collects a larger database for calculation, due to differences in race and living environment, the eigenvalues ​​​​of people of the same age group have huge differences, and effective eigenvectors cannot be established.

Method used

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  • Age assessment method based on face recognition technology

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Embodiment Construction

[0027] The method of the present invention is based on a valid assumption that similar-looking people have similar facial features at different ages. When performing age assessment, it is only necessary to compare the evaluated face image with the face images of different age groups of people with a high similarity to its appearance, and find several portraits of the age group with the highest similarity to the evaluated object , through the weighted average, so as to infer the age of the evaluated object.

[0028] The realization of the method of the invention includes two stages of off-line training and matching query.

[0029] In the offline training stage, the main task of this stage is to comprehensively apply face recognition technology and ranking learning algorithm to establish a face image feature library with people as the grouping unit, and the face image features of each person are arranged in ascending order of age.

[0030] In the matching query stage, the main ...

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Abstract

An age assessment method based on face recognition technology is a method capable of considering affects on age estimation caused by race, sex, latitude (region), rural-urban difference. The method of using face recognition technology to estimate age has vast applicability and improves accuracy of age estimation observably. The method is based on an effective hypothesis, that is people with similar appearance has similar facial features at different ages, when estimating ages, just comparing the face image to be estimated with face image of different ages with higher appearance similarity, finding numbers of face images at different ages has highest appearance similarity with the object being estimated, proceeding weighted average to infer age of the object being estimated.

Description

technical field [0001] The invention is an age assessment method based on face recognition technology, which belongs to the technical field of image recognition and pattern recognition applications. Background technique [0002] In recent years, in the field of computer vision related to face image research, with the remarkable progress made in face detection and face recognition technology, people's research hotspots have gradually turned to more advanced methods such as facial expression analysis and age assessment. research topics. Among these topics, the application of age assessment in "providing different services for people of different age groups" has huge market potential. For example, a web browser with an age assessment function can determine whether a user is restricted from accessing some web pages, and a vending machine with an age assessment function can refuse to sell alcohol and tobacco to minors. [0003] The current usual age assessment method is to firs...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00G06K9/62
Inventor 袁存鼎马文涛
Owner 无锡骏聿科技有限公司
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