Input method based on facial expression recognition

An input method and expression recognition technology, applied in the input field, can solve the problems of inability to apply expression recognition and expression information input, low versatility, etc., and achieve the effect of convenient operation and good versatility

Active Publication Date: 2011-09-21
SAMSUNG ELECTRONICS CHINA R&D CENT +1
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Problems solved by technology

However, the current limitation of this method is that the facial expression matching and recognition is realized through pre-sampling, so the ...

Method used

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  • Input method based on facial expression recognition
  • Input method based on facial expression recognition
  • Input method based on facial expression recognition

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Experimental program
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Embodiment approach

[0024] figure 1 It is a flowchart showing the steps of the input method based on facial expression recognition according to the present embodiment.

[0025] like figure 1 As shown, the input method based on expression recognition according to this embodiment can be roughly divided into four modules, which are subdivided into eight steps, wherein step S1010 constitutes an image acquisition module 101, and steps S1020-S1040 constitute an expression recognition and classification module 102, Steps S1050-S1070 constitute the input result matching module 103, and step S1080 constitutes the input module. The specific steps are as follows.

[0026] In step S1010, after the input method is activated, the user's face is photographed by the camera device and image signals are collected at fixed time intervals Δt, for example, at 0.1 second intervals. Among them, the camera device is installed on the user-operated device, or as an independent device.

[0027] Next, in step S1020, the...

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Abstract

The invention discloses an input method based on facial expression recognition, which comprises the following steps of: acquiring an image by using a camera device; recognizing a face and positioning an outline by utilizing a reference template method, a face rule method, a sample learning method, a skin color model method or a characteristic sub-face method; extracting a facial expression feature from the face by utilizing a principal component analysis method or Gabor wavelet method; acquiring the classification of the facial expression from the facial expression feature by utilizing a template-based matching method, a neural network based method or a support vector machine based method; matching the classification with a corresponding input result; and inputting the input result.

Description

technical field [0001] The present invention relates to an input method, in particular to an input method based on facial expression recognition. Background technique [0002] At present, there are mainly the following methods for inputting facial expression information in electronic devices such as mobile phones, personal digital assistants, televisions, and personal computers. [0003] The most primitive method is to describe specific expressions through words, such as the user input text "smile" or "angry", etc., to describe specific types of expressions. There are also ways to use punctuation combinations. Expressing a specific expression through punctuation means that a user inputs a series of punctuation to form an emoticon with pictographic meaning, such as "^_^". [0004] However, the above-mentioned method of directly inputting text information representing expressions has problems such as a single input method and a rigid expression form. However, the method of ...

Claims

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Application Information

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IPC IPC(8): G06F3/01G06K9/00
Inventor 杜乐谢林朱昊亮
Owner SAMSUNG ELECTRONICS CHINA R&D CENT
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