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Image contour based novel human face recognition method

A technology of face recognition and image contour, which is applied in the field of face recognition based on image contour, can solve the problems of destroying image structure information, time-consuming, large amount of calculation, etc., and achieve good recognition effect, simple operation and fast recognition speed Effect

Active Publication Date: 2013-08-14
浙江曲速科技有限公司
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Problems solved by technology

However, it destroys the structural information of the image, ignores the differences between different samples, and when the sample is large enough, the calculation of the corresponding eigenvalues ​​and eigenvectors is large and time-consuming.

Method used

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  • Image contour based novel human face recognition method
  • Image contour based novel human face recognition method
  • Image contour based novel human face recognition method

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0033] figure 1 It is a schematic flow chart of the face recognition algorithm based on the image contour proposed by the present invention. The whole process includes four stages: image preprocessing, face contour energy map, calculation of similarity, and classification and recognition based on similarity criteria. First, binarize the original face image, extract the boundary contour, and further optimize; secondly, calculate the face contour energy map according to the training sample; then calculate the similarity between the test sample and each type of face contour energy map; finally, according to the similarity standard Perform classification recognition. Specific steps are as follows:

[0034] Step 1, perform image wheel preprocessing, the method is as follows:

[0035] (1) Normalize the cropped face image.

[0036] Reduce the dim...

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Abstract

The invention belongs to the technical field of pattern recognition, relates to computer technology, digital image processing technology, biological feature recognition technology and the like, and provides an image contour based novel human face recognition method. The method comprises the following steps: firstly, extracting a human face image contour by using a binarization method and a mathematical morphology method, followed by further optimizing to obtain the human face contour with interior boundary as few as possible, and calculating human face contour energy diagram of each training sample; then, calculating the similarity between the test sample and each kind of the human face contour energy diagram; and finally, classifying and recognizing the test sample according to the similarity standard. The method provided by the invention is a similarity matching method, can make full advantage of image structure information, avoids characteristic value solving problem in a traditional method and Euclidean distance-based classification algorithm, and can effectively improve classification and recognition performance through applying a matrix logic and operation into the classification and recognition.

Description

technical field [0001] The invention belongs to the technical field of pattern recognition, relates to computer technology, digital image processing technology and biometric feature recognition technology, and in particular to a new method for face recognition based on image contours. Background technique [0002] Biometric identification technology refers to the technology that uses the physiological characteristics or behavioral characteristics that human beings possess to identify their identity for identity verification. Compared with traditional identity verification technology, biometric technology has higher reliability and security, and has been more and more widely used in identity authentication in some security systems. As a typical biometric technology, face recognition technology has been valued for its naturalness and high reliability, and has broad application prospects in national security, judicial fields, and human-computer interaction. [0003] Image edge...

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Application Information

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IPC IPC(8): G06K9/00G06K9/62
Inventor 杨新武翟飞
Owner 浙江曲速科技有限公司
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