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Miniature iris recognition module adopting active visual feedback

A technology of iris recognition and recognition module, which is applied in the direction of character and pattern recognition, instruments, computer parts, etc., can solve the problems of large amount of calculation in the process of iris recognition, and achieve the effects of easy remote control, low cost and easy realization

Active Publication Date: 2011-08-03
BEIJING IRISKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Due to the large amount of calculation in the iris recognition process, the earliest iris recognition equipment manufacturers performed iris collection and iris recognition separately. The deployment of the iris recognition system has certain limitations

Method used

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  • Miniature iris recognition module adopting active visual feedback
  • Miniature iris recognition module adopting active visual feedback
  • Miniature iris recognition module adopting active visual feedback

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0034] Refer to attached Figure 1~3 . figure 2 It is a structural schematic diagram of the first embodiment of the present invention. The whole iris recognition module adopting active visual feedback consists of a liquid crystal screen (feedback unit) 1, an imaging lens 2, an imaging processing circuit (CCD) 3, an infrared filter 4, a distance measuring unit 5, an infrared lighting unit 6, and a reflective prism 7. The main circuit board 8', the casing 9 and the transmission line 10 for outputting control signals etc. constitute. A processing unit, an interface control unit and a storage unit are integrated on the main circuit board 8. The infrared lighting is located around or next to the acquisition unit to illuminate the iris of the eye. Since the lighting unit has a certain emission angle, the feedback unit has a certain viewing angle. , and the acquisition unit also has a certain acquisition angle and depth of field range. Adjust the optical axis of the illumination u...

Embodiment approach 2

[0046] Figure 4 A schematic diagram of another embodiment of the invention is shown. This embodiment shows a desktop application connected with a computer using the iris recognition module proposed by the present invention. In this embodiment, the iris recognition module is connected to the computer through the USB interface line. When the registered user needs to use the computer or log in to the system, the iris recognition module can be used for identity recognition first, and the iris recognition module will identify the result (registered user's ID number and other information) is transmitted to the computer, and the computer system judges the user's identity legality and login authority.

Embodiment approach 3

[0047] Implementation 3: Figure 5 A schematic diagram of another embodiment of the invention is shown. In this embodiment, two sets of iris recognition modules are combined side by side, and the distance between the centers of the two optical paths is properly selected so that this distance is equal to the average interpupillary distance of ordinary users, which is 65mm in our embodiment. In this way, the iris information of the two eyes can be collected, and the iris image can be processed and recognized simultaneously. Such as Figure 5 As shown, the recognition results of two sets of iris recognition modules can be connected through a switch, and then transmitted to other peripheral devices for use. In order to overcome the cross-interference of the lighting source on the iris image, especially to reduce the reflection of the lighting source from the eyes of the user wearing glasses, the lighting unit can be extracted separately and arranged on both sides of the two se...

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Abstract

Provided is a miniaturization iris identification module adopting active vision feedback, which independently completes collection of eye iris images and process function, and can be used as a miniaturization module with independent iris identification function embedded into and connected to other devices, e.g. a safe box (a safe case), a lock, a finance safety-deposit box, a fire-arm storage box, a bag storage cabinet, a ATM, a POS, a work attendance machine, a gate inhibition controller, a channel controller, a lift controller, a radio set, a copier, a electrograph, a telephone, a printer,a mouse, a computer, a household electrical appliance, a cable TV remoter, a toy, a digital camera, a moving device, a car, a motor, a motor-assisted bicycle and the like, thereby upgrading to a product with iris identification and authentication function.

Description

technical field [0001] The invention belongs to the technical field of biological feature identification and information security, and in particular relates to a miniaturized modular iris identification device utilizing self-feedback and active cooperation of users. Background technique [0002] The iris is the richly textured ring-shaped area of ​​the human eye between the black pupil and the white sclera. A large number of medical and computer science studies have shown that the iris texture of different eyes (including the left and right eyes of humans and the eyes of twins) is different, and it has been stable since 8 months after the embryo is formed, so the iris has a high degree of uniqueness. , The advantages of strong stability. In addition, the iris is an externally visible internal organ, which has the advantage of being noninvasive. These advantages make the iris particularly suitable for identification and identification of people, and have been successfully a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00
Inventor 魏育成邱显超
Owner BEIJING IRISKING
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