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Preset facial expression recognition method and device

A preset algorithm and expression technology, applied in the field of image recognition, can solve the problems of poor practicability, recognition of preset expressions and low accuracy of preset expressions, and achieve good stability

Inactive Publication Date: 2014-08-06
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] Embodiments of the present invention provide a method and device for recognizing preset expressions, which can solve the problems of low accuracy and poor practicability in recognizing preset expressions and the degree of occurrence of preset expressions

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  • Preset facial expression recognition method and device
  • Preset facial expression recognition method and device

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Embodiment Construction

[0066] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0067] An embodiment of the present invention provides a preset facial expression recognition method, such as figure 1 As shown, the method includes:

[0068] S101. Acquire a target image, and perform preprocessing on the target image to obtain a target facial image.

[0069] Wherein, the target image can be a preset single image containing the face of a person, or a single frame image extracted from a video containing a face of a person, and the presentation...

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Abstract

The embodiment of the invention provides a preset facial expression recognition method and device, and relates to the field of image recognition. The facial expression recognition method and device can solve the problems that the facial expression is low in recognition accuracy and poor in practicability. The method includes the steps that a target image is preprocessed to acquire a target facial expression image, then the corresponding target feature vector of the target facial expression image is extracted through a preset algorithm, and the occurrence degree estimation value of the preset facial expression in the target image is determined according to a preset correspondence rule. The facial expression recognition method and device are used for recognition of the preset facial expression in images.

Description

technical field [0001] The present invention relates to the field of image recognition, in particular to a preset expression recognition method and device. Background technique [0002] With the rapid development of machine vision and automatic face recognition technology, computers have been able to automatically recognize human facial expressions based on face images. Expression recognition has important applications in emotional computing, video surveillance, image and video retrieval, intelligent human-computer interaction, and entertainment consumer industries. Taking intelligent human-computer interaction as an example, expression recognition can enable smart devices to recognize the user's facial expression based on the user's facial image, and then obtain the user's psychological state according to the user's facial expression, and then provide corresponding services to the user according to the user's psychological state, improving user satisfaction. [0003] Exis...

Claims

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Application Information

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IPC IPC(8): G06K9/64G06K9/46
Inventor 向学勤山世光刘梦怡
Owner HUAWEI TECH CO LTD
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