Single-image sensor based double-eye iris recognition equipment

Abstract

The invention relates to medium-long distance single-image sensor based double-eye iris recognition equipment which comprises a panel, an optical lens, a camera module, a processor plate, a storage media, a power interface and a network interface. The process plate is connected with the camera module, the storage media, the power interface and the network interface, and the optical lens, the camera module, the processor plate and the storage media are embedded in the space limited by the front part and the rear part of the panel. The medium-long distance single-image sensor double-eye iris recognition equipment is characterized in that: the front part of the panel is provided with an automatic positioning optical filter, the optical lens is arranged on one side of the optical filter, which is far from the user, the shooting distance of the optical lens is more than 30cm, and the optical lens is provided with a pitch adjusting mechanism so as to adapt to the user in different height and carry out the non-contact double-eye iris recognition. The embedded double-eye iris recognition equipment has a farther recognition range and a wider activity range, can adopt the human-machine interaction modes of the tri-color light and the voice at the same time and is intelligent and friendly.

Description

technical field [0001] The invention relates to a binocular iris recognition device based on a single image sensor, and belongs to the technical field of biological feature recognition and identity authentication. Background technique [0002] With the continuous improvement of requirements for safety, advancement, stability, networking, etc., various biometric identification and security authentication methods and equipment have emerged. Biometric or behavioral characteristics for personal identity security authentication, these biological or behavioral characteristics include face, fingerprint, iris, palm print, handwriting and voice, among which the iris is the most complex tissue facing the outside world, and is biologically active, non-toxic Contact, uniqueness, stability, anti-counterfeiting and other biological characteristics, so iris recognition is widely regarded as one of the most promising biometric identification and security authentication technologies, and it ...

AI Technical Summary

Problems solved by technology

[0003] Current iris recognition methods and devices all use a single camera for single-eye iris collection, and dual cameras for binocular iris collection; the former has the problem of differences between the user's primary and secondary eyes, making it difficult for the eyes to align with the collection camera. The matching program when iris image puts forward higher requirements

The latter has higher requirements for the precision of the manufacturing process, and the device structure is more complicated and the cost is higher.

Regardless of the former and the latter, the user is required to perform verification and identification within a range of 30cm, and the range of activities is narrow, and the user has a sense of limitation

[0004] Patent document 1 (CN101894401A) discloses an iris recognition access control, which collects and recognizes the iris of a single eye through a single camera, and sets an infrared distance measuring device and an indicator light to facilitate the user to be in a range suitable for collection. This iris recognition access control adopts The straight-type terminal equipment and the fixed shooting angle obviously have high requirements for the cooperation of users, and it cannot be used by users of various heights due to the short-distance acquisition, and its user convenience is not ideal

Patent document 2 (CN101877061A) discloses a binocular iris image acquisition method and device based on a single camera. The dual-contrast mirror guides the user to realize the realization, the three-color LED indicates the collection distance, and has the function of flickering to stimulate pupil contraction, but it is not convenient for various groups of people because it only prompts through the distance indicator light, and because of the short-distance iris collection and recognition, it is difficult for users The movement and posture coordination requirements are relatively high

Patent document 3 (CN101533473A) discloses a binocular iris image acquisition and processing device with a single USB interface. Improvements have been made to the interaction between the acquisition and processing equipment and the computer, but it has not specifically disclosed how to use the entire binocular image for iris recognition, and this acquisition and processing equipment has a fixed shooting angle and close-up shooting, which obviously still does not improve iris recognition User convenience of the device

Patent Document 4 (CN201204614Y) also discloses an iris identification terminal, which is connected to the system multimedia processing unit through a general input and output interface and a general asynchronous transceiver interface, which overcomes the situation that the network cannot work due to various factors, and through Integrating a common interface is easy to expand more control functions, but it also does not improve the user convenience of the iris recognition device

Images