Facial expression recognition method and device

A technology of facial expression recognition and facial expression, which is applied in the field of facial attribute recognition, can solve the problem of low accuracy of facial expression recognition and achieve the effect of improving accuracy

Active Publication Date: 2017-08-15
BEIJING MOSHANGHUA TECH CO LTD
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Problems solved by technology

[0005] In view of this, the technical problem to be solved in this application is to provide a method and device for facial expression recognition, which solves the technical problem of low accuracy of facial expression recognition in the prior art

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  • Facial expression recognition method and device
  • Facial expression recognition method and device

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Embodiment Construction

[0059] The implementation of the present application will be described in detail below with reference to the accompanying drawings and examples, so as to fully understand and implement the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects.

[0060] The technical solutions of the embodiments of the present application are mainly applied to the recognition of human facial expressions. As mentioned in the background technology, traditional facial expression recognition is mainly realized by extracting local features or overall features of human face images. The local features describe The local and overall texture and shape information of the face, but this feature vector is often high-dimensional, redundant, and contains some noise information, which is not suitable for direct use for face recognition, and the appearance model is good at specific angles such as the front face. The recognition effec...

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Abstract

The present invention discloses a facial expression recognition method and device. The method comprises the following steps that: the local features and overall features of a face in a detection image are extracted; the local features, overall features and detection image are inputted into a deep learning model, so that the classification results of the detection image belonging to different facial expressions are obtained, wherein the deep learning model is obtained through training a deep neural network in advance according to the training images of different facial expressions and the local features and overall features of the training images; and the facial expression of the detection image is determined according to the classification results. With the facial expression recognition method and device of the invention adopted, the accuracy of facial expression recognition can be improved.

Description

technical field [0001] The present application belongs to the technical field of face attribute recognition, and in particular, relates to a method and device for face expression recognition. Background technique [0002] Facial expression is a means to express human cognition, emotion and state, which contains a lot of personal behavior information. Therefore, by recognizing facial expressions, user experience can be improved in different fields such as human-computer interaction, thereby promoting technological progress. [0003] Facial expressions usually include happiness, sadness, anger, fear, surprise, and disgust, etc. Different facial expressions can be represented by the features of the face image, so it is possible to extract the features of the face image and use machine learning algorithms to let the machine learn Facial expression information contained in features to realize facial expression recognition. [0004] Traditional facial expression recognition is m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06N3/08
CPCG06N3/084G06V40/175G06V40/172G06V40/168
Inventor 张默
Owner BEIJING MOSHANGHUA TECH CO LTD
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