WO2018157827A1

WO2018157827A1 - Dynamic human eye-tracking iris capturing device, dynamic human eye-tracking iris identification device and method

Info

Publication number: WO2018157827A1
Application number: PCT/CN2018/077598
Authority: WO
Inventors: 托马斯费尔兰德斯·
Original assignee: 武汉虹识技术有限公司
Priority date: 2017-03-01
Filing date: 2018-02-28
Publication date: 2018-09-07
Also published as: CN106778713B; CN106778713A

Abstract

A dynamic human eye-tracking iris identification device and method. The device comprises a processor (110), an iris image sensor (120), an iris coding identification module (130), a ranging device (140), a sliding device (150), a rotating device (160), an object supporting mesa (180), and multiple image capturing devices (170). The iris image sensor (120) is provided on the rotating device (160) so as to rotate as the rotating device (160) rotates. The iris image sensor (120), the iris code identification module (130), and the rotating device (160) are mounted on the object supporting mesa (180). The object supporting mesa (180) is provided on the sliding device (150) to move as the sliding device (150) moves. The device actively adjusts the iris image sensor (120) via the rotating device (160) and the sliding device (150) to track the eyes of a user.

Description

Iris collecting device for dynamic human eye tracking, iris recognition device and method for dynamic human eye tracking

The present application claims priority to Chinese Patent Application No. CN2017101182284, entitled "Iris Recognition Device and Method for Dynamic Human Eye Tracking", filed on March 1, 2017, the entire contents of which are incorporated by reference. In this application.

Technical field

The present invention relates to the field of biometrics, and in particular to an iris collection device for dynamic human eye tracking, an iris recognition device and method for dynamic human eye tracking.

Background technique

With the development of biometric technology, conventional identification devices such as ID/IC cards are gradually being replaced by biometric devices, such as fingerprint recognition devices, face recognition devices, and iris recognition devices. Among them, the iris recognition device has been vigorously developed and applied due to its high security. In the prior art, a camera array composed of a plurality of cameras is used for image acquisition. When the number of cameras is small, it is difficult to meet the requirements of different user heights. If the number of cameras is large, the amount of calculation of the computer will increase, resulting in a longer recognition delay. And this collection method also requires the user to actively aim the human eye at one of the cameras, the device is not intelligent enough, and the usability is not good. In addition, in the prior art, a lifting rod is also used to adjust the height of the device to meet the requirements of users of different heights. However, the movement mode of the adjusting method is large, the delay is long, and the iris camera is easily shaken, resulting in an unclear iris image.

Summary of the invention

In view of the above, an object of the present invention is to provide an iris collection device for dynamic human eye tracking, an iris recognition device for dynamic human eye tracking, and a method for solving the above problems.

A preferred embodiment of the present invention provides an iris recognition device for dynamic human eye tracking, including a processor, an iris image sensor, an iris code recognition module, a distance measuring device, a sliding device, a rotating device, a stage, and a plurality of image acquisitions. Device

The iris image sensor, the iris code recognition module, the distance measuring device, the sliding device, the rotating device and the plurality of image capturing devices are respectively electrically connected to the processor, and the iris image sensor and the iris code recognition module Electrical connection

The iris image sensor is disposed on the rotating device to rotate with the rotation of the rotating device, and the iris image sensor, the iris code recognition module and the rotating device are mounted on the stage, the stage Provided on the sliding device to move with the movement of the sliding device;

The image acquisition device is configured to collect image information in front of the iris recognition device tracked by the dynamic human eye, and transmit the image information to the processor, so that the processor performs face detection and human eye positioning according to the image information. Obtaining the user's human eye position information;

The distance measuring device is configured to measure a distance between the iris image sensor and the position of the human eye, and transmit the same to the processor, so that the processor generates a control instruction to prompt the user to move forward or backward Moving, while causing the processor to control the rotation of the rotating device according to the distance and the position of the human eye to drive the iris image sensor to rotate, and control the movement of the sliding device to drive the iris image sensor to move Human eye position tracking;

The iris image sensor is configured to collect an iris image of the user and transmit the image to the iris code recognition module for iris recognition.

Further, the rotating device is a pan/tilt, and the pan/tilt is electrically connected to the processor to rotate in a vertical direction according to a control instruction of the processor to drive the iris image sensor to rotate in a vertical direction. .

Further, the sliding device includes a matching rail and a slider, and the slider is coupled to the stage to drive the stage to move on the sliding rail.

Further, the dynamic human eye tracking iris recognition device further includes a sounding device electrically connected to the processor for issuing voice information according to a control command of the processor to prompt the user to move.

Further, the dynamic human eye tracking iris recognition device further includes a plurality of light emitting devices, and the plurality of the light emitting devices are respectively disposed on two sides of the iris image sensor.

Further, the dynamic human eye tracking iris recognition device further includes a display device electrically connected to the processor to display the image information received by the processor.

Further, the distance measuring device is a binocular stereo vision ranging device, and the binocular stereo vision ranging device is composed of two image capturing devices.

Further, the distance measuring device is an infrared distance measuring device, an acoustic wave distance measuring device, a laser ranging device or a radar ranging device.

Further, the image acquisition device is a wide field of view camera.

Another preferred embodiment of the present invention provides an iris recognition device for dynamic human eye tracking, including a processor, an iris image sensor, an iris code recognition module, a distance measuring device, a sliding device, a rotating device, and a plurality of image capturing devices;

The iris image sensor is disposed on the rotating device to rotate with the rotation of the rotating device, and the iris image sensor, the iris code recognition module, and the rotating device are mounted on the sliding device to move with the sliding device And moving;

The distance measuring device is configured to measure a distance between the iris image sensor and the position of the human eye and transmit it to the processor to cause the processor to determine the distance according to the human eye Controlling the rotation of the rotating device to drive the iris image sensor to rotate, and controlling the movement of the sliding device to drive the iris image sensor to move for human eye position tracking;

Further, the processor controls the rotating device to rotate according to the distance and the position of the human eye to drive the iris image sensor to rotate, and controls the sliding device to move to drive the iris image sensor to move for a person. While the eye position is being tracked, the processor generates a control command to prompt the user to move forward or backward.

The iris image sensor is disposed on the rotating device to rotate with the rotation of the rotating device, and the rotating device is mounted on the sliding device to move with the movement of the sliding device;

The image capture device is configured to collect image information and transmit the image information to the processor, so that the processor obtains user's human eye position information according to the image information;

The distance measuring device is configured to measure a distance between the iris image sensor and the position of the human eye and transmit it to the processor to cause the processor to determine the distance according to the human eye Controlling the rotation of the rotating device to drive the iris image sensor to rotate, and controlling the movement of the sliding device to drive the rotating device and the iris image sensor to move for human eye position tracking;

The iris image sensor is disposed on the sliding device to move with the movement of the sliding device, and the sliding device is mounted to the rotating device to rotate with the rotation of the rotating device;

Another preferred embodiment of the present invention provides an iris recognition method for dynamic human eye tracking, which is applied to the iris recognition device for dynamic human eye tracking described above, and the method includes:

The image acquisition device collects image information in front of the iris recognition device tracked by the dynamic human eye in real time and sends the image information to the processor;

The processor performs face detection and human eye positioning on the image information to obtain a human eye position of the user;

The distance measuring device measures a distance between the iris image sensor and the position of the human eye, and sends the distance to the processor;

The processor calculates, according to the position information of the human eye and the distance between the iris image sensor and the position of the human eye, the angle at which the iris image sensor needs to be rotated and the distance that needs to be moved in the horizontal direction, and issue a control command. Controlling the rotation of the rotating device to adjust an angle of the iris image sensor, and controlling movement of the sliding device to drive the iris image sensor to move;

The iris image sensor collects an iris image of the user and transmits the iris image to the iris code recognition module for iris recognition.

A preferred embodiment of the present invention provides a dynamic human eye tracking iris collection device, including a processor, an iris image sensor, a distance measuring device, a sliding device, a rotating device, and a plurality of image capturing devices;

The iris image sensor, the distance measuring device, the sliding device, the rotating device, and the plurality of image capturing devices are respectively electrically connected to the processor;

The iris image sensor is disposed on the rotating device to rotate with the rotation of the rotating device, and the iris image sensor and the rotating device are mounted on the sliding device to move with the movement of the sliding device;

The iris image sensor is used to capture an iris image of a user.

The invention provides a dynamic human eye tracking iris collecting device, a dynamic human eye tracking iris recognition device and a method, and the dynamic human eye tracking iris recognition device can realize dynamic tracking of a user's human eye through a rotating device and a sliding device. Actively adjust the iris image sensor to track the user's eyes. It not only solves the problem of height adaptation, but also solves the problem that the traditional iris recognition device requires the user to move the eye to the designated iris recognition collection area, which improves the usability of the iris recognition device and enhances the user experience. Moreover, by adjusting the angle and position of the iris image sensor by the rotation in the vertical direction and the movement in the horizontal direction, the smoothness of the iris image sensor during movement is improved, and the sharpness of the collected iris image is ensured.

The above described objects, features and advantages of the present invention will become more apparent from the aspects of the appended claims.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly described below. It should be understood that the following drawings show only certain embodiments of the present invention, and therefore It should be seen as a limitation on the scope, and those skilled in the art can obtain other related drawings according to these drawings without any creative work.

FIG. 1 is a structural block diagram of an iris recognition device for dynamic human eye tracking according to a preferred embodiment of the present invention.

2 is a structural diagram of an iris recognition device for dynamic human eye tracking according to a preferred embodiment of the present invention.

FIG. 3 is a schematic diagram showing the relationship between an iris image sensor and a human eye position according to a preferred embodiment of the present invention.

FIG. 4 is another structural block diagram of an iris recognition device for dynamic human eye tracking according to a preferred embodiment of the present invention.

FIG. 5 is a schematic diagram showing the relationship between an iris image sensor and another perspective of a human eye position according to a preferred embodiment of the present invention.

FIG. 6 is a flowchart of an iris recognition method for dynamic human eye tracking according to a preferred embodiment of the present invention.

FIG. 7 is a structural block diagram of an iris collection device for dynamic human eye tracking according to a preferred embodiment of the present invention.

Icons: 10 - dynamic human eye tracking iris recognition device; 110 - processor; 120 - iris image sensor; 130 - iris code recognition module; 140 - distance measuring device; 150 - sliding device; 160 - rotating device; Image acquisition device; 180-stage; 190-sounding device; 200-display device; 210-lighting device; 20-dynamic human eye tracking iris recognition device.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of the embodiments of the invention, which are generally described and illustrated in the figures herein, may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the invention are in the All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

It should be noted that similar reference numerals and letters indicate similar items in the following figures, and therefore, once an item is defined in a drawing, it is not necessary to further define and explain it in the subsequent drawings. Meanwhile, in the description of the present invention, the terms "installation", "setting", and "connection" are to be understood broadly, and may be, for example, a fixed connection or a detachable connection, or Connected integrally; can be mechanical or electrical; can be directly connected or indirectly connected through an intermediate medium, which can be the internal communication between the two components. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.

Please refer to FIG. 1 , which is a structural block diagram of an iris recognition device 10 for dynamic human eye tracking according to an embodiment of the present invention. As shown in FIG. 1 , the dynamic human eye tracking iris recognition device 10 includes a processor 110, an iris image sensor 120, an iris code recognition module 130, a distance measuring device 140, a sliding device 150, a rotating device 160, and a plurality of images. Acquisition device 170. The iris image sensor 120, the iris code recognition module 130, the distance measuring device 140, the sliding device 150, the rotating device 160, and the plurality of image capturing devices 170 are electrically connected to the processor 110, respectively, and the iris image sensor 120 The iris code recognition module 130 is electrically connected.

Referring to FIG. 2 together, the dynamic human eye tracking iris recognition device 10 further includes a stage 180. The iris image sensor 120 is disposed on the rotating device 160, and can rotate in a vertical direction with the rotation of the rotating device 160, that is, the rotating device 160 rotates around its axis, and the The iris image sensor 120 rotates about the axis of the rotating device 160, and the axis of the rotating device 160 is preferably horizontal. The iris image sensor 120, the iris code recognition module 130, and the rotating device 160 are mounted on the stage 180, and the stage 180 is disposed on the sliding device 150. The iris image sensor 120, the iris code recognition module 130, the rotating device 160, and the stage 180 can be moved in a horizontal direction by a certain distance with the movement of the sliding device 150.

Optionally, in this embodiment, the image collection device 170 may be multiple, and the plurality of the image collection devices 170 are disposed at the bottom of the iris recognition device 10 for tracking the dynamic human eye, for collecting the dynamics. The image information in front of the iris recognition device 10 tracked by the human eye. Optionally, in this embodiment, the image capturing device 170 may be a wide field of view camera to cover a larger image capturing area. A plurality of wide field of view cameras may be evenly spaced at the bottom of the iris recognition device 10 for dynamic human eye tracking, and the wide field of view camera collects the dynamics in real time as the user approaches the iris recognition device 10 tracked by the dynamic human eye. The image information in front of the iris recognition device 10 tracked by the human eye. In the specific implementation, when a plurality of wide-field cameras are used to simultaneously capture images, user image information can be captured in a wider range. After acquiring the user image information, the wide field of view camera transmits the acquired image information to the processor 110 for processing.

Optionally, the processor 110 may perform face detection after receiving the image information sent by the wide field of view camera. First, the faceless information is detected based on the captured image information, and if the face image is detected, the face image information is extracted. The processor 110 performs human eye detection and positioning according to the obtained facial facial image information, and obtains human eye position information.

Optionally, the distance measuring device 140 is electrically connected to the processor 110 for measuring a distance between the iris image sensor 120 and the position of the human eye. Optionally, in the embodiment, the distance measuring device 140 is a binocular stereo vision ranging device. The binocular stereo vision ranging device is composed of two wide field of view cameras. The two wide field of view cameras are respectively disposed at a front bottom position of the iris recognition device 10 that is tracked by the dynamic human eye. Using two wide field of view cameras to acquire the same scene in front of the iris recognition device 10 of the dynamic human eye tracking from two viewpoints, obtain a set of images at different viewing angles, and then pass the same scene in different images. Parallax to calculate the target object in the scene, ie the spatial geometry and position of the user's human eye. The distance D of the human eye position to the iris image sensor 120 is obtained according to the calculated distance, as shown in FIG.

Binocular stereo vision ranging is based on the principle of vision, transforming the problem of depth information in three-dimensional space into two-dimensional space for parallax. No signal source is needed, and the distance is measured by comparison and comparison of visual signals. It is easy to use and ranging. At the same time, you can get a lot of scene information and other advantages.

Optionally, in the embodiment, the ranging device 140 can also adopt an infrared ranging device. The infrared ranging device includes an infrared emitter and a position detecting device (not shown). The infrared emitter and the position detecting device are respectively disposed on both sides of the iris image sensor 120. The infrared emitter and the position detecting device are electrically connected to the processor 110, respectively. In a specific implementation, the infrared emitter emits an infrared light beam, and after encountering an obstacle, the infrared light beam is reflected back by the obstacle, and the reflected light is received by the position detecting device. Calculating an angle between the obstacle and the infrared distance measuring device according to an angle formed by the obstacle, the infrared emitter and the position detecting device, and a distance between the infrared emitter and the position detecting device distance. The distance from the human eye position to the iris image sensor 120 is obtained based on the calculated distance.

Optionally, in this embodiment, the ranging device 140 may be an acoustic wave ranging device, and the acoustic wave ranging device may calculate two according to a time interval between a transmitting signal and an echo signal after encountering an obstacle. The distance between the people. In addition to the above-described different types of ranging devices, the ranging device 140 may also employ a laser ranging device, a radar ranging device, and the like, which are not specifically limited in this embodiment.

Referring to FIG. 4, optionally, in the embodiment, the dynamic human eye tracking iris recognition device 10 further includes a sounding device 190. The sounding device 190 is electrically connected to the processor 110. Since the iris recognition algorithm has certain requirements for the iris image to be processed, it is necessary to define the distance between the user's human eye position and the iris image sensor 120. The processor 110 compares the measured result of the ranging device 140 with the distance required by the iris recognition algorithm. Sending a control command to the sounding device 190 according to the comparison result to control the sounding device 190 to emit voice information to prompt the user to move forward or backward, for example, the distance between the human eye position and the iris image sensor 120 is too large. , "user forward movement" may be issued; if the distance between the household eye position and the iris image sensor 120 is too small, "user moves backward" may be issued; or the household eye position and the iris image If the distance between the sensors 120 is just right, a voice message such as "Please keep moving" may be issued to prompt the user to perform corresponding actions, and after the user re-station, the image information that satisfies the requirements is re-acquired.

Alternatively, in the present embodiment, an autofocusing iris camera may also be employed to obtain iris image information that satisfies the requirements.

Optionally, in the embodiment, the dynamic human eye tracking iris recognition device 10 further includes a display device 200, and the display device 200 is electrically connected to the processor 110. The display device 200 is disposed on a front surface of the iris recognition device 10 that is tracked by the dynamic human eye. The processor 110 transmits image information captured by the received wide field of view camera to the display device 200. According to the image information displayed by the display device 200, the user can view the effect of the shooting, such as whether the body is in the middle of the image, whether the image is clear, etc., and adjust accordingly according to the effect of the shooting to obtain the quality of the wide field camera. Better image information.

Referring to FIG. 2 again, in the embodiment, according to the high reflectivity of the iris to the near-infrared light, the dynamic human-eye tracking iris recognition device 10 further includes a plurality of illumination devices 210, and the plurality of Light emitting devices 210 are respectively disposed on both sides of the iris image sensor 120. Optionally, in this embodiment, the light emitting device 210 can be a near infrared light. The number of the illuminating devices 210 may be four or six, and the specific values may be set according to specific requirements, which are not specifically limited in this embodiment. In a specific implementation, when the iris recognition device 10 of the dynamic human eye tracking is turned on, the illumination device 210 is turned on, and the light source is provided to facilitate the iris recognition device 10 of the dynamic human eye tracking to collect a clear iris image. Prepare for iris recognition.

After the above process, the processor 110 calculates the level according to the obtained human eye position information, the distance D between the iris image sensor 120 and the human eye position, and the parameters of the wide field of view camera according to formula (1). The distance L in which the iris image sensor 120 needs to move in the direction, and the angle θ at which the iris image sensor 120 needs to be rotated in the vertical direction is calculated according to the formula (2), so that the iris image sensor 120 can be directed to the user. The human eye to capture the user's iris image, please refer to Figure 3 and Figure 5.

Wherein, l0 is the distance from the image acquisition device 170 CMOS to the convex lens optical center of the image acquisition device 170, and p _x is the pixel point number in the horizontal direction of the image from the human eye to the image acquisition device 170, and p _o is the horizontal direction of the optical center of the image acquisition device 170. The upper pixel number, W _CMOS is the width of the _CMOS target surface of the image capture device 170, W _p is the sum of the pixel points that can be imaged in the horizontal direction of the image capture device 170, and D is the distance between the iris image sensor 120 and the position of the human eye, ΔD The horizontal distance between the iris image sensor 120 and the image capture device 170.

Wherein, l ₀ is the distance from the image acquisition device 170 CMOS to the convex lens optical center of the image acquisition device 170, p _y is the pixel point number in the vertical direction of the image from the human eye to the image acquisition device 170, and p _o is the vertical of the optical center of the image acquisition device 170 The pixel point number in the direction, H _CMOS is the height of the _CMOS target surface of the image capturing device 170, H _p is the sum of the pixel points that can be imaged in the vertical direction of the image capturing device 170, and D is the distance between the iris image sensor 120 and the position of the human eye. Δh is the vertical distance between the optical center of the iris image sensor 120 and the optical center of the image acquisition device 170.

The processor 110 controls the rotation of the rotating device 160 according to the angle θ at which the iris image sensor 120 needs to rotate to drive the iris image sensor 120 to rotate by a corresponding angle. Optionally, in this embodiment, the rotating device 160 is a pan/tilt, and the iris image sensor 120 is mounted on the pan/tilt head, that is, the pan-tilt image sensor 120 can be driven by rotating the pan-tilt head. Rotate in the vertical direction. The gimbal interior contains a motor, which is mainly responsible for the rotation of the gimbal in the up and down direction. After receiving the control command issued by the processor 110, the motor rotates, and the vertical drive wheel rotates through the reduction box. Optionally, the pan/tilt further includes a limit bolt, and the limit function can be implemented by the micro switch. When the rotation angle of the pan/tilt head reaches a preset limit pin, the micro switch operates to cut off the power, and the pan/tilt stops rotating.

Generally, the PTZ can be divided into an AC PTZ and a DC PTZ. The AC pan/tilt uses an AC motor, and the rotation speed is relatively fixed. Generally, the vertical rotation speed is 3°/s-6°/s. Most of the DC heads are DC stepper motors, which have the advantages of high speed and variable speed. The DC head is ideal for applications where fast capture of the target is required, with a vertical speed of 10°/s-24°/s. In addition, the DC PTZ has a variable speed function for smooth transitions.

Optionally, the processor 110 controls the movement of the sliding device 150 according to the distance L that the iris image sensor 120 needs to move in the horizontal direction. Optionally, the sliding device 150 includes a slider and a slide rail that cooperate with each other. The iris image sensor 120, the iris code recognition module 130, the pan/tilt head, and the stage 180 are all disposed on the slider. The processor 110 sends control information according to the calculated distance L that the iris image sensor 120 needs to move in the horizontal direction to control the slider to move on the slide rail to drive the iris image sensor 120 to be horizontal. Move the corresponding distance L in the direction. After the position of the iris image sensor 120 in the vertical angle and the horizontal direction is adjusted, the tracking of the user's human eye is completed.

After the user's human eye tracking is completed, the iris image sensor 120 finds the optimal iris image capturing position, and the user's iris image information can be collected. Optionally, the iris image sensor 120 may include a CMOS image sensor. When performing iris image acquisition, the CMOS image sensor performs acquisition corresponding to the entire binocular region, and may also perform various processes on the iris image, such as preprocessing, Image quality screening and feature extraction and more. The iris image sensor 120 transmits the acquired iris image to the iris code recognition module 130 for iris recognition.

After receiving the iris image information sent by the iris image sensor 120, the iris code recognition module 130 matches the feature code extracted by the feature with the iris image feature code in the database one by one to determine whether the collected iris image is The iris image in the database is the same as the iris to identify the user. Optionally, in this embodiment, if the identity verification of the user is successful, the sounding device 190 may issue a prompt voice of “verification pass”, otherwise, a voice prompt of “verification failure” is issued.

Optionally, in another preferred embodiment of the present invention, the iris recognition device 10 for dynamic human eye tracking may not include the stage 180. Correspondingly, the iris image sensor 120 and the iris code recognition module 130 are included. And a rotating device 160 is mounted to the sliding device 150. The iris image sensor 120, the iris code recognition module 130, and the rotating device 160 may be moved in a horizontal direction by a certain distance with the movement of the sliding device 150.

Optionally, in another preferred embodiment of the present invention, in the iris recognition device 10 for dynamic human eye tracking, the iris image sensor 120 is to be mounted on the sliding device 150 to move with the movement of the sliding device 150. The sliding device 150 is mounted on the rotating device 160 to rotate with the rotation of the rotating device 160, that is, the rotating device 160 rotates to drive the iris image sensor 120 and the sliding device together. When the 150 is rotated, the movement of the sliding device 150 drives the iris image sensor 120 to move.

Referring to FIG. 7 , another preferred embodiment of the present invention further provides a dynamic human eye tracking iris collection device 20 . The dynamic human eye tracking iris collection device 20 includes a processor 110 and an iris image sensor 120 ranging device 140 . The sliding device 150, the rotating device 160 and the plurality of image capturing devices 170. The iris image sensor 120, the distance measuring device 140, the sliding device 150, the rotating device 160, and the plurality of image capturing devices 170 are electrically connected to the processor 110, respectively. The components in the iris collection device 20 of the dynamic human eye tracking are the same as those in the iris recognition device 10 tracked by the dynamic human eye, and are not described herein again. Another preferred embodiment of the present invention further provides an iris recognition method for dynamic human eye tracking, which is applied to the iris recognition device 10 for dynamic human eye tracking described above. The dynamic human eye tracking iris recognition device 10 includes a processor 110, an iris image sensor 120, an iris code recognition module 130, a distance measuring device 140, a sliding device 150, a rotating device 160, a stage 180, and a plurality of image acquisitions. Device 170.

The iris image sensor 120, the iris code recognition module 130, the distance measuring device 140, the sliding device 150, the rotating device 160, and the plurality of image capturing devices 170 are electrically connected to the processor 110, respectively, and the iris image sensor 120 The iris code recognition module 130 is electrically connected.

The iris image sensor 120 is disposed on the rotating device 160 to rotate with the rotation of the rotating device 160. The iris image sensor 120, the iris code recognition module 130, and the rotating device 160 are mounted on the stage 180, and the stage 180 is disposed on the sliding device 150 to move with the sliding device 150. mobile.

As shown in FIG. 6 , it is a flowchart of an iris recognition method for dynamic human eye tracking provided by an embodiment of the present invention. It should be noted that the method provided in this embodiment is not limited to the order described in FIG. 6 and the following. The specific flow shown in FIG. 6 will be described in detail below.

Step S101: The image acquisition device 170 collects image information in front of the iris recognition device 10 tracked by the dynamic human eye in real time and sends the image information to the processor 110.

Step S102: The processor 110 performs face detection and human eye positioning on the image information to obtain a human eye position of the user.

Step S103: The distance measuring device 140 measures the distance between the iris image sensor 120 and the position of the human eye, and sends the distance to the processor 110.

Step S104: The processor 110 calculates, according to the human eye position information and the distance between the iris image sensor 120 and the human eye position, an angle at which the iris image sensor 120 needs to be rotated and a horizontal direction that needs to be moved. The distance is commanded to control the rotation of the rotating device 160 to adjust the angle of the iris image sensor 120, and to control the movement of the sliding device 150 to drive the iris image sensor 120 to move.

Step S105: The iris image sensor 120 collects an iris image of the user and transmits the iris image to the iris code recognition module 130 for iris recognition.

In summary, the present invention provides an iris recognition device 10 and method for dynamic human eye tracking. The iris recognition device 10 for dynamic human eye tracking actively adjusts the iris image sensor 120 by the rotation device 160 and the sliding device 150. Dynamic tracking of the user's human eye. It not only solves the problem of height adaptation, but also solves the problem that the traditional iris recognition device requires the user to move the eye to the designated iris recognition collection area, improves the ease of use of the iris recognition device 10 for dynamic human eye tracking, and enhances the user. Experience. Moreover, by adjusting the angle and position of the iris image sensor 120 by the rotation in the vertical direction and the movement in the horizontal direction, the smoothness of the iris image sensor 120 during movement is improved, and the sharpness of the collected iris image is ensured.

In the embodiments provided by the present application, it should be understood that the disclosed apparatus and method may also be implemented in other manners. The above described device embodiments are merely illustrative, for example, the flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of devices, methods, and computer program products according to embodiments of the invention. In this regard, each block of the flowchart or block diagram can represent a module, a program segment, or a portion of code that includes one or more of the Executable instructions. It should also be noted that, in some alternative implementations, the functions noted in the blocks may also occur in a different order than those illustrated in the drawings. For example, two consecutive blocks may be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending upon the functionality involved. It is also noted that each block of the block diagrams and/or flowcharts, and combinations of blocks in the block diagrams and/or flowcharts, can be implemented in a dedicated hardware-based system that performs the specified function or function. Or it can be implemented by a combination of dedicated hardware and computer instructions.

It is to be understood that the term "comprises", "comprising" or any other variations thereof is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device that comprises a It also includes other elements that are not explicitly listed, or elements that are inherent to such a process, method, item, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention. It should be noted that similar reference numerals and letters indicate similar items in the following figures, and therefore, once an item is defined in a drawing, it is not necessary to further define and explain it in the subsequent drawings.

Industrial applicability

The iris recognition device 10 and method for dynamic human eye tracking provided by the embodiment of the present invention actively adjust the iris image sensor 120 by the rotation device 160 and the sliding device 150 to realize dynamic tracking of the user's human eye, which can be applied not only to Users with different heights can actively move the iris image sensor 120 to collect iris information of the user, which improves the usability of the iris recognition device 10 for dynamic human eye tracking and enhances the user experience.

Claims

An iris recognition device for dynamic human eye tracking, comprising: a processor, an iris image sensor, an iris code recognition module, a distance measuring device, a sliding device, a rotating device, a carrier, and a plurality of image capturing devices;

The iris image sensor, the iris code recognition module, the distance measuring device, the sliding device, the rotating device and the plurality of image capturing devices are respectively electrically connected to the processor, and the iris image sensor and the iris code recognition module Electrical connection

The iris image sensor is disposed on the rotating device to rotate with the rotation of the rotating device, and the iris image sensor, the iris code recognition module and the rotating device are mounted on the stage, the stage Provided on the sliding device to move with the movement of the sliding device;

The image acquisition device is configured to collect image information in front of the iris recognition device tracked by the dynamic human eye, and transmit the image information to the processor, so that the processor performs face detection and human eye positioning according to the image information. Obtaining the user's human eye position information;

The distance measuring device is configured to measure a distance between the iris image sensor and the position of the human eye, and transmit the same to the processor, so that the processor generates a control instruction to prompt the user to move forward or backward Moving, while causing the processor to control the rotation of the rotating device according to the distance and the position of the human eye to drive the iris image sensor to rotate, and control the movement of the sliding device to drive the iris image sensor to move Human eye position tracking;

The iris image sensor is configured to collect an iris image of the user and transmit the image to the iris code recognition module for iris recognition.
The iris recognition device for dynamic human eye tracking according to claim 1, wherein the rotating device is a pan/tilt, and the pan/tilt is electrically connected to the processor to control commands according to the processor. Rotating in the vertical direction to drive the iris image sensor to rotate in the vertical direction.
The iris recognition device for dynamic human eye tracking according to claim 1, wherein the sliding device comprises a matching rail and a slider, and the slider is coupled to the stage to drive the load. The stage moves on the slide rail.
The iris recognition device for dynamic human eye tracking according to claim 1, wherein the iris recognition device for dynamic human eye tracking further comprises an electrical connection with the processor for controlling according to the processor A sounding device that commands a voice message to prompt the user to move.
The iris recognition device for dynamic human eye tracking according to claim 1, wherein the iris recognition device for dynamic human eye tracking further comprises a plurality of illumination devices, wherein the plurality of illumination devices are respectively disposed on the iris image Both sides of the sensor.
The iris recognition device for dynamic human eye tracking according to claim 1, wherein the iris recognition device for dynamic human eye tracking further comprises a display device, wherein the display device is electrically connected to the processor to display The image information received by the processor.
The iris recognition device for dynamic human eye tracking according to claim 1, wherein the distance measuring device is a binocular stereo vision ranging device, and the binocular stereo vision ranging device is composed of two of the images. Device composition.
The iris recognition device for dynamic human eye tracking according to claim 1, wherein the distance measuring device is an infrared distance measuring device, an acoustic wave ranging device, a laser ranging device or a radar ranging device.
The iris recognition device for dynamic human eye tracking according to claim 1, wherein the image acquisition device is a wide field of view camera.
An iris recognition device for dynamic human eye tracking, comprising: a processor, an iris image sensor, an iris code recognition module, a distance measuring device, a sliding device, a rotating device and a plurality of image capturing devices;

The iris image sensor, the iris code recognition module, the distance measuring device, the sliding device, the rotating device and the plurality of image capturing devices are respectively electrically connected to the processor, and the iris image sensor and the iris code recognition module Electrical connection

The iris image sensor is disposed on the rotating device to rotate with the rotation of the rotating device, and the iris image sensor, the iris code recognition module, and the rotating device are mounted on the sliding device to move with the sliding device And moving;

The image acquisition device is configured to collect image information in front of the iris recognition device tracked by the dynamic human eye, and transmit the image information to the processor, so that the processor performs face detection and human eye positioning according to the image information. Obtaining the user's human eye position information;

The distance measuring device is configured to measure a distance between the iris image sensor and the position of the human eye and transmit it to the processor to cause the processor to determine the distance according to the human eye Controlling the rotation of the rotating device to drive the iris image sensor to rotate, and controlling the movement of the sliding device to drive the iris image sensor to move for human eye position tracking;

The iris image sensor is configured to collect an iris image of the user and transmit the image to the iris code recognition module for iris recognition.
The iris recognition device for dynamic human eye tracking according to claim 10, wherein the processor controls the rotation of the rotating device to drive the iris image sensor to rotate according to the distance and the position of the human eye, and While controlling the movement of the sliding device to move the iris image sensor for human eye position tracking, the processor generates a control command to prompt the user to move forward or backward.
An iris recognition device for dynamic human eye tracking, comprising: a processor, an iris image sensor, an iris code recognition module, a distance measuring device, a sliding device, a rotating device and a plurality of image capturing devices;

The iris image sensor, the iris code recognition module, the distance measuring device, the sliding device, the rotating device and the plurality of image capturing devices are respectively electrically connected to the processor, and the iris image sensor and the iris code recognition module Electrical connection

The iris image sensor is disposed on the rotating device to rotate with the rotation of the rotating device, and the rotating device is mounted on the sliding device to move with the movement of the sliding device;

The image capture device is configured to collect image information and transmit the image information to the processor, so that the processor obtains user's human eye position information according to the image information;

The distance measuring device is configured to measure a distance between the iris image sensor and the position of the human eye and transmit it to the processor to cause the processor to determine the distance according to the human eye Controlling the rotation of the rotating device to drive the iris image sensor to rotate, and controlling the movement of the sliding device to drive the rotating device and the iris image sensor to move for human eye position tracking;

The iris image sensor is configured to collect an iris image of the user and transmit the image to the iris code recognition module for iris recognition.
An iris recognition device for dynamic human eye tracking, comprising: a processor, an iris image sensor, an iris code recognition module, a distance measuring device, a sliding device, a rotating device and a plurality of image capturing devices;

The iris image sensor, the iris code recognition module, the distance measuring device, the sliding device, the rotating device and the plurality of image capturing devices are respectively electrically connected to the processor, and the iris image sensor and the iris code recognition module Electrical connection

The iris image sensor is disposed on the sliding device to move with the movement of the sliding device, and the sliding device is mounted to the rotating device to rotate with the rotation of the rotating device;

The image capture device is configured to collect image information and transmit the image information to the processor, so that the processor obtains user's human eye position information according to the image information;

The distance measuring device is configured to measure a distance between the iris image sensor and the position of the human eye and transmit it to the processor to cause the processor to determine the distance according to the human eye Controlling the rotation of the rotating device to drive the iris image sensor to rotate, and controlling the movement of the sliding device to drive the rotating device and the iris image sensor to move for human eye position tracking;

The iris image sensor is configured to collect an iris image of the user and transmit the image to the iris code recognition module for iris recognition.
An iris recognition method for dynamic human eye tracking, characterized by the iris recognition device for dynamic human eye tracking according to any one of claims 1-9, the method comprising:

The image acquisition device collects image information in front of the iris recognition device tracked by the dynamic human eye in real time and sends the image information to the processor;

The processor performs face detection and human eye positioning on the image information to obtain a human eye position of the user;

The distance measuring device measures a distance between the iris image sensor and the position of the human eye, and sends the distance to the processor;

The processor calculates, according to the position information of the human eye and the distance between the iris image sensor and the position of the human eye, the angle at which the iris image sensor needs to be rotated and the distance that needs to be moved in the horizontal direction, and issue a control command. Controlling the rotation of the rotating device to adjust an angle of the iris image sensor, and controlling movement of the sliding device to drive the iris image sensor to move;

The iris image sensor collects an iris image of the user and transmits the iris image to the iris code recognition module for iris recognition.
An iris collection device for dynamic human eye tracking, comprising: a processor, an iris image sensor, a distance measuring device, a sliding device, a rotating device and a plurality of image capturing devices;

The iris image sensor, the distance measuring device, the sliding device, the rotating device, and the plurality of image capturing devices are respectively electrically connected to the processor;

The iris image sensor is disposed on the rotating device to rotate with the rotation of the rotating device, and the iris image sensor and the rotating device are mounted on the sliding device to move with the movement of the sliding device;

The image acquisition device is configured to collect image information in front of the iris recognition device tracked by the dynamic human eye, and transmit the image information to the processor, so that the processor performs face detection and human eye positioning according to the image information. Obtaining the user's human eye position information;

The distance measuring device is configured to measure a distance between the iris image sensor and the position of the human eye and transmit it to the processor to cause the processor to determine the distance according to the human eye Controlling the rotation of the rotating device to drive the iris image sensor to rotate, and controlling the movement of the sliding device to drive the iris image sensor to move for human eye position tracking;

The iris image sensor is used to capture an iris image of a user.