Face image recognition method and system
A face image and recognition method technology, which is applied in the field of face image recognition methods and systems, can solve the problems of difficult application of face recognition technology to embedded systems, slow image processing and recognition speed, low recognition rate, etc. Slow speed, eliminate interference, and good reliability
Active Publication Date: 2014-10-08
DONGGUAN ZKTECO ELECTRONICS TECH
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[0002] At present, there are different face image recognition methods for personal identification, but these methods generally have the problems of low recognition rate, slow image processing and recognition speed.
This makes it difficult to apply face recognition technology to embedded systems
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[0032] Such as Figure 2-7 As shown, the face image recognition method of the present invention is to first set up the user template library, and then identify according to the following steps: 1) collect the face image to be recognized, 2) extract the template to be recognized, 3) user face recognition;
[0033] Described user's face recognition is: the template to be identified is compared with the first template of each user in the user template storehouse, obtains all user lists A1 that the similarity score is greater than 43, arranges by similarity score from large to small; If A1 is empty, the recognition fails. If the similarity score of the first user in A1 is greater than the upper limit threshold of 90, the recognition succeeds and returns the corresponding user. If not, proceed to the next step: combine the template to be recognized with the first user in A1 Compare 2-5 templates to get a list A2 of all users whose scores are greater than 60, and arrange them in des...
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The invention relates to a method and a system for recognizing a human face image to solve problems of low recognition speed and low recognition rate in the prior art. In the method, a user template library is set up firstly and then recognition is performed; and for the user template library, during user registration, a user changes N kinds of attitudes, and three frames of images are collected and characteristic templates are extracted at each attitude, wherein a template sequencing principle is as follows: A, the selected templates represent the unselected templates as far as possible, that is to say, the selected templates have the maximum similarity with other candidate templates; and B, the selected templates are far from the templates which are selected before as much as possible, that is to say, the selected templates keep the minimum similarity with the templates which are selected before. In the system, an embedded microprocessor is used as a central processing unit of the system, a CMOS (Complementary Metal-Oxide-Semiconductor Transistor) sensor is used for collecting human face images, a human face infrared lighting device is used as an auxiliary device, and a narrow-band infrared filter is used to filter visible light. According to the method and the system for recognizing the human face image, disclosed by the invention, the problems of low recognition speed and low recognition rate can be solved efficiently, and both the speed and the recognition rate can reach a commercial application level. The system has the advantages of usability under any light condition, capability of removing interference from the ambient light, good reliability, and recognition rate as well as recognition speed both of which reach a satisfactory level.
Description
technical field [0001] The invention designs a biological feature recognition method, in particular relates to a face image recognition method and system. Background technique [0002] At present, there are different face image recognition methods for personal identification, but these methods generally have the problems of low recognition rate, slow image processing and recognition speed. This makes it difficult to apply face recognition technology to embedded systems. Contents of the invention [0003] The object of the present invention is to overcome the defective of prior art, propose and realize a kind of face image recognition method that can keep better recognition rate while greatly improving processing speed; face image recognition system. [0004] In order to achieve the above object, the face image recognition method of the present invention is to first set up the user template library, and then identify according to the following steps: 1) collect the face i...
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IPC IPC(8): G06K9/62
Inventor 车全宏李治农陈书楷
Owner DONGGUAN ZKTECO ELECTRONICS TECH