Facial expression recognition input method
An input method and facial expression recognition technology, applied in character and pattern recognition, input/output of user/computer interaction, instruments, etc., can solve problems such as inconvenient use, slow input speed, and unsatisfactory input speed
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[0117] In the following specific implementation Figure 6 , Figure 7 , Figure 9 , Figure 10 , Figure 11 , Figure 14 and Figure 15 In the two-dimensional coordinate diagram in , the horizontal axis represents the position of the object in pixels, and the vertical axis represents the sum of pixel gray values.
[0118] Such as figure 1 Shown, the present invention is a kind of facial expression recognition input method, comprises the following steps:
[0119] Make sure that there is no moving object in the shooting environment, that is, the background is still, make an expression in front of the camera, perform step S11, acquire two consecutive frames of images, and calculate the difference grayscale image of the two frames of images. Such as figure 2 ; When shooting, it is required that the face of the person should face the camera as far as possible, and keep a suitable distance (the head can roughly fill the video image output by the camera). Use a camera or ot...
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