System and method for identifying finger vein
A finger vein and image technology, applied in the field of finger vein recognition system, can solve the problems of few feature points and small vein area, achieve high recognition rate, low cost, and resist image rotation and translation.
Inactive Publication Date: 2014-05-28
洪西进
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Problems solved by technology
However, due to the small area of finger veins, there are few feature points that can be extracted, so how to perform correct identification under the condition of fewer feature points is a major challenge in the field of finger vein identification.
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[0048] See figure 1 , figure 1 A functional block diagram of the finger vein recognition system 10 according to a specific embodiment of the present invention is shown. The present invention provides a finger vein recognition system 10, which includes an image capture module 12, an image preprocessing module 14, a feature point calculation module 16, a user database 18, and a first comparison model Group 20 and a second comparison module 22.
[0049] The image capturing module 12 is used to capture a finger vein image. In practical applications, the image capturing module 12 can be constituted by an infrared light source, a finger holder, and a general webcam.
[0050] See figure 2 and Figure 3(A) to Figure 3(E) , figure 2 Shows a flowchart of the predetermined program 26 according to a specific embodiment of the present invention, Figure 3(A) to Figure 3(E) A schematic diagram of a series of pre-processed finger vein images according to a specific embodiment of the present in...
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The invention discloses a system and a method for identifying a finger vein. The system comprises an image capturing module, an image preprocessing module, a characteristic point computing module, a user data bank, a first comparison module and a second comparison module. The characteristic point computing module is connected with the image preprocessing module so as to capture a plurality of characteristic points by aiming at a preprocessed finger vein image and compute a set of characteristic point distances which correspond to the characteristic points. The first comparison module is connected with the characteristic point computing module and the user data bank so as to compare the characteristic point distances and generate a characteristic point distance comparison result. The second comparison module is connected with the image preprocessing module, the user data bank and the first comparison module so as to capture a set of lines of the preprocessed finger vein image and generate a line similarity comparison result after the comparison is performed. The second comparison module is used for generating a finger vein identification result by the characteristic point distance comparison result and the line similarity comparison result.
Description
Technical field [0001] The present invention is related to a finger vein identification system and method, in particular to a finger vein identification system and method that combines the distance of characteristic points and vein patterns. Background technique [0002] The term technology has become an indispensable thing for modern people. People are always surrounded by technology products, and more and more technology products have come out, such as personal digital assistants (PDA) and smart phones (Smart Phone). , Notebooks, financial cards, electronic wallets and online banking, etc., have also brought considerable convenience to human life, on the other hand, they have also brought security concerns. [0003] Generally speaking, if a conventional technology product needs to be authenticated, it mostly uses a card plus a password to complete the identification, but for most people, this approach is not sufficiently secure and often causes trouble. For example, when the car...
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IPC IPC(8): G06K9/00G06K9/60
Inventor 洪西进赖世伟
Owner 洪西进