Face image quality evaluation method and device and computer readable storage medium

A face image and quality evaluation technology, applied in the direction of calculation, image analysis, image enhancement, etc., can solve the problems of sensitive face brightness and cannot reflect the quality of face image, so as to improve the face recognition rate and avoid face Effects of differences in image quality

Active Publication Date: 2019-04-05
ZHEJIANG UNIVIEW TECH
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Problems solved by technology

[0006] (1). In some practical applications (such as wide dynamic scenes and scenes with insufficient lighting), the quality of face images is significantly affected by noise, and the existing technology cannot reflect The quality of the face image with noise
[0007] (2), the human eye is sensitive to the brightness of the face, and the existing technology cannot reflect the quality of the face image with different brightness

Method used

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  • Face image quality evaluation method and device and computer readable storage medium
  • Face image quality evaluation method and device and computer readable storage medium
  • Face image quality evaluation method and device and computer readable storage medium

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Embodiment Construction

[0058] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, and the following embodiments do not constitute a limitation of the present invention.

[0059] The core idea of ​​the technical solution of the present application is to comprehensively evaluate the quality of the face image according to the brightness of the face image, the intensity of the noise, and the definition of the face features.

[0060] Such as figure 1 As shown, a kind of facial image quality evaluation method of the present embodiment comprises:

[0061] Obtain the average brightness of the face image, and calculate the brightness evaluation value of the face image according to the average brightness;

[0062] Obtain the noise intensity of the face image, and calculate the noise evaluation value of the face image according to the noise intensity;

[0063] Obtain the feature definition of the face image, ...

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Abstract

The invention discloses a face image quality evaluation method, device and a computer readable storage medium. According to the face image quality evaluation method, the average brightness, the noiseintensity and the feature definition of the face image are obtained, the brightness evaluation value, the noise evaluation value and the feature definition evaluation value of the face image are obtained through calculation, and finally the quality of the face image is evaluated according to the evaluation values of the brightness, the noise and the feature definition of the face image. The invention also discloses a face image quality evaluation device and a computer readable storage medium, which are used for realizing each step of the method. According to the method, the device and the computer readable storage medium, the quality of the face image is comprehensively evaluated from three dimensions of brightness, noise and feature definition, the difference of the quality of the face image caused by subjective difference of human eyes is avoided, and the face recognition rate is increased.

Description

technical field [0001] The invention belongs to the technical field of image quality evaluation, and in particular relates to a face image quality evaluation method, device and computer-readable storage medium. Background technique [0002] With the rise of artificial intelligence, face recognition is a very concerned research direction in the field of artificial intelligence research, especially in the field of security. [0003] In the face recognition system, the quality of the face image greatly affects the accuracy of the system recognition. The quality of facial images is affected by many factors, including the characteristics of the image itself such as brightness, contrast, sharpness, noise, etc., as well as attributes related to facial features such as facial posture, uniformity of illumination, and so on. Low-quality images may lead to system matching errors and reduced matching accuracy, so it is necessary to evaluate the quality of face images. [0004] In addi...

Claims

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Application Information

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IPC IPC(8): G06T7/00
CPCG06T7/0002G06T2207/30201G06T2207/30168
Inventor 张文萍徐琼
Owner ZHEJIANG UNIVIEW TECH
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