Face picture detection method and device

Abstract

The invention relates to the technical field of image processing, in particular to a face picture detection method and device. The face picture detection method comprises the following steps of: according to a cascade classifier, judging whether a picture to be detected is a face picture or not; if a detection result shows that the picture to be detected is the face picture according to the cascade classifier, according to a CNN (Convolutional Neural Network) classifier, judging whether the picture to be detected is the face picture or not; and if a detection result shows that the picture to be detected is the face picture according to the CNN classifier, determining that the picture to be detected is the face picture. By use of the embodiment of the invention, firstly, a non-face pictureis filtered through the cascade classifier, the amount of pictures detected by the CNN classifier is lowered, and the integral speed of the CNN classifier can be effectively improved; and in addition,before the CNN classifier carries out detection, the cascade classifier carries out detection, and detection accuracy can be effectively improved.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a face picture detection method and device. Background technique [0002] Face image detection is a key link in the face recognition system. Early research on face image detection mainly focused on face images with strong constraints (such as images without background), often assuming that the position of the face is always or easy to obtain, so the problem of face image detection has not been paid attention to. With the development of e-commerce and other applications, face recognition has become the most potential biometric authentication method. This application background requires automatic face recognition systems to have certain recognition capabilities for general pictures. [0003] At present, there are many ways to realize face picture detection, among which deep learning algorithm, especially CNN (Convolutional Neural Network, Convolutional Neural Netw...

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Problems solved by technology

[0005] The present invention provides a face picture detection method and device to solve the technical problems in the prior art that the speed is not fast enough and the accuracy is not particularly high when using CNN classifiers for face recognition

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