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Expression detecting device and method

A detection method and detection device technology, which are applied in the fields of instruments, character and pattern recognition, computer parts, etc., can solve the problems of difficult to use embedded platforms, huge computational load of facial expression detection technology, affecting the correctness of expression detection results, etc. , to achieve the effect of low computational complexity

Inactive Publication Date: 2010-11-17
NOVATEK MICROELECTRONICS CORP
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Problems solved by technology

[0004] However, the traditional facial expression detection technology not only has a huge amount of calculation, but also is not easy to be used in embedded platforms (such as digital cameras)
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Method used

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  • Expression detecting device and method
  • Expression detecting device and method

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Embodiment

[0024] Please refer to figure 1 , figure 1 is a schematic diagram of an expression detection device according to an embodiment of the present invention. The expression detection device 10 includes a gray scale image generation unit 110 , a face edge detection unit 120 , a dynamic skin color extraction unit 130 , a face contour generation unit 140 and an expression detection unit 150 . The grayscale image generating unit 110 generates a grayscale image S2 according to the original image S1. The face edge detection unit 120 outputs a face edge detection result S3 according to the gray scale image S2. Wherein, the face edge detection unit 120, for example, detects the gray scale image S2 on the horizontal edge to output the face edge detection result S3. The dynamic skin color extraction unit 130 generates a dynamic skin color extraction result according to the original image S1, and generates a face and background segmentation result S4 according to the dynamic skin color ext...

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Abstract

The invention relates to expression detecting device and method. The expression detecting device comprises a gray-scale image generating unit, a human face edge detecting unit, a dynamic complexion capturing unit, a human face contour generating unit and an expression detecting unit. The gray-scale image generating unit is used for generating a gray-scale image according to an original image. The human face edge detecting unit is used for outputting a human face edge detecting result according to the gray-scale image. The dynamic complexion capturing unit is used for generating a dynamic complexion capturing result according to the original image and generating a human face and background segmenting result according to the dynamic complexion capturing result. The human face contour generating unit is used for outputting a human face contour according to the gray-scale image, the human face edge detecting result and the human face and background segmenting result. The expression detecting unit is used for outputting an expression detecting result according to the human face contour.

Description

technical field [0001] The present invention relates to an expression detection device and an expression detection method thereof, and in particular to an expression detection device with a low computational load and an expression detection method thereof. Background technique [0002] In life, people often express their inner emotions through facial expressions. Emotional expression areas mainly include: mouth, eyes, eyebrows and cheeks. When people express their inner emotions, they can express a state of mind by only changing some local features of the face (such as raising the corners of the mouth). With the rapid development of technology, people further expect expression recognition to be applied to electronic devices, so as to greatly improve the convenience of application. [0003] Smile detection is one of the important items of facial expression detection, and its processing method can be divided into two parts: face feature detection technology and classifier. ...

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Application Information

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IPC IPC(8): G06K9/00G06K9/62
Inventor 宋开泰韩孟儒王仕杰林家合林季谊
Owner NOVATEK MICROELECTRONICS CORP
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