Palmprint palm vein image recognition method and device based on topology analysis
A technology of topology analysis and image recognition, which is applied in the field of palmprint and palm vein image recognition based on topology analysis, can solve the problems of not being well adapted to palmprint and palm vein image recognition, high limit requirements, and large amount of computation, and achieve data reduction Effects of reduced amount of processing and data storage, less computation, and reduced data processing
Active Publication Date: 2019-10-25
上海奥宜电子科技有限公司
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[0006] The purpose of the present invention is to provide a palmprint and palm vein image recognition method and device based on topology analysis, to solve the existing palmprint and palm vein recognition methods that require a large amount of calculation, poor fault tolerance, and poor performance. The problem of image recognition of palmprint and veins adapted to different angles
[0007] The second object of the present invention is to provide a palmprint palm vein image recognition method and device based on topology analysis to solve the problem of poor versatility, high power consumption and high limit requirements of existing security equipment based on palmprint palm vein recognition ( High requirements on the position and angle of the palm), high cost, and large volume
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[0048] The following will clearly and completely describe and discuss the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all examples. The embodiments, all other embodiments obtained by those of ordinary skill in the art without creative work, fall within the protection scope of the present invention.
[0049] In order to facilitate the understanding of the embodiments of the present invention, specific embodiments will be used as an example for further explanation and description with reference to the accompanying drawings, and each embodiment does not constitute a limitation to the embodiments of the present invention.
[0050] This embodiment provides a palmprint and palm vein image recognition method based on topology analysis, see figure 1 As shown, the method includes the following steps:
[0051]...
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The present invention provides a palmprint palm vein image recognition method based on topology analysis, comprising the following steps: S1: acquiring the palmprint palm vein image; S2: preprocessing the palmprint palm vein image to obtain the palmprint palm vein distribution map; S3: Mark the nodes of the palm veins in the palm vein distribution map, the nodes include bifurcation points and endpoints; S4: Establish the topological relationship between the palm veins and the nodes on the palm veins; S5: Identify the palm veins according to the topological relationship pulse information. Correspondingly, the present invention also provides a palmprint palm vein image recognition device based on topology analysis. The method and device characterize and store the features of the palm veins based on the topological structure of the palm veins, the processing process is simple, and the calculation amount of digital image processing is small, which effectively reduces the amount of data processing and data storage in the process of palm vein recognition, and the recognition process is not easy. Limited by the shooting angle, shooting distance and image sampler model, it has strong versatility, and the device can use MCU, which is low in cost and low in power consumption.
Description
Technical field [0001] The invention relates to the technical field of palmprint and palm vein image recognition, in particular to a palmprint and palm vein image recognition method and device based on topology analysis. Background technique [0002] Palm vein recognition (palm vein recognition) is a high-security live biometric technology. This technology is used for identification under an extremely sophisticated and safe system. Its application principle is to use the near-infrared sensor to obtain the palm vein distribution map, store the template, and then establish each individual's unique palm vein image database in the computer, and then log in and store each person's palm vein data through the computer. Manage in the computer. Because palm vein recognition is based on the high security and uniqueness of living body biometrics, it has broad application prospects in the field of security. [0003] In the current palmprint palm vein recognition technology, such as the inve...
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IPC IPC(8): G06K9/00
CPCG06V40/1376
Inventor 余朝东
Owner 上海奥宜电子科技有限公司