CN107451530B - Control method of infrared light source assembly and electronic device - Google Patents
Control method of infrared light source assembly and electronic device Download PDFInfo
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- CN107451530B CN107451530B CN201710551822.2A CN201710551822A CN107451530B CN 107451530 B CN107451530 B CN 107451530B CN 201710551822 A CN201710551822 A CN 201710551822A CN 107451530 B CN107451530 B CN 107451530B
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/18—Eye characteristics, e.g. of the iris
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- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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Abstract
The invention discloses a control method of an infrared light source component and an electronic device. The electronic device comprises an iris identification module and a visible light camera, wherein the iris identification module comprises an infrared light source assembly, the infrared light source assembly comprises at least two infrared light sources, and the working wavelengths of the at least two infrared light sources are different. The control method comprises the following steps: collecting a face image through a visible light camera; acquiring the color of an iris according to the face image; and activating one of the at least two infrared light sources based on the iris color. According to the control method and the electronic device, the visible light camera is matched with the iris recognition module, the iris color information is obtained before iris recognition, the infrared light sources with the corresponding wavelengths in the iris recognition module are started according to the iris colors to perform iris recognition, and the infrared light sources with different working wavelengths are started for users of different races, so that the applicability of the iris recognition module is improved, and the iris recognition efficiency is improved.
Description
Technical Field
The present disclosure relates to electronic devices, and particularly to a method for controlling an infrared light source module and an electronic device.
Background
Iris recognition generally needs an infrared light source to assist an iris camera to acquire a clear iris image, and due to the fact that iris colors of different races are different, the wavelength of an applicable infrared light source is different, and the applicability of the infrared light source with a single wavelength is poor. For this purpose, a plurality of infrared light sources having different operating wavelengths may be provided, however, how to select and activate an infrared light source corresponding to an operating wavelength becomes a new problem.
Disclosure of Invention
The embodiment of the invention provides a control method of an infrared light source assembly and an electronic device.
The control method of the infrared light source component provided by the embodiment of the invention is used for an electronic device, the electronic device comprises an iris identification module and a visible light camera, the iris identification module comprises the infrared light source component, the infrared light source component comprises at least two infrared light sources, the working wavelengths of the at least two infrared light sources are different, and the control method comprises the following steps:
acquiring a human face image through the visible light camera;
acquiring the color of an iris according to the face image; and
and starting one of the at least two infrared light sources according to the iris color, wherein one of the two infrared light sources is matched with the acquired iris color.
The electronic device comprises an iris identification module and a visible light camera, wherein the iris identification module comprises an infrared light source assembly, the infrared light source assembly comprises at least two infrared light sources, the working wavelengths of the at least two infrared light sources are different, the electronic device further comprises a processor, the visible light camera is used for collecting face images, and the processor is used for:
acquiring the color of an iris according to the face image; and
and starting one of the at least two infrared light sources according to the iris color, wherein one of the two infrared light sources is matched with the acquired iris color.
The electronic device comprises an iris identification module and a visible light camera, wherein the iris identification module comprises an infrared light source assembly, the infrared light source assembly comprises at least two infrared light sources, the operating wavelengths of the at least two infrared light sources are different, the electronic device further comprises a memory and a processor, the memory is used for storing executable program codes, and the processor is used for executing programs corresponding to the executable program codes by reading the executable program codes stored in the memory so as to execute the control method.
The computer readable storage medium of the embodiment of the present invention has instructions stored therein, and when a processor of an electronic device executes the instructions, the electronic device executes the control method.
According to the control method and the electronic device of the infrared light source component, the visible light camera is matched with the iris recognition module, the iris color information is obtained through the visible light camera before iris recognition, the infrared light sources with the corresponding wavelengths in the iris recognition module are started according to the iris colors to perform iris recognition, and the infrared light sources with different working wavelengths are started aiming at users with different races, so that the applicability of the iris recognition module is improved, and the iris recognition efficiency is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart illustrating a control method according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an electronic device according to an embodiment of the invention.
Fig. 3 is a flow chart illustrating a control method according to some embodiments of the present invention.
Fig. 4 is a flow chart illustrating a control method according to some embodiments of the present invention.
FIG. 5 is a flow chart illustrating a control method according to some embodiments of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of illustrating the embodiments of the present invention and are not to be construed as limiting the embodiments of the present invention.
Referring to fig. 1 and 2, a method for controlling an infrared light source assembly according to an embodiment of the present invention includes the following steps:
s10: collecting a face image through a visible light camera;
s20: acquiring the color of an iris according to the face image; and
s30: activating one of the at least two infrared light sources based on the color of the iris.
In the electronic device 1000 according to the embodiment of the present invention, the electronic device 1000 includes an iris recognition module 100, a visible light camera 200, and a processor 300. The iris recognition module 100 includes an infrared light source assembly 10. The infrared light source assembly 10 includes at least two groups of infrared light sources, and the operating wavelengths of the at least two groups of infrared light sources are different. As an example, the control method according to the embodiment of the present invention may be implemented by the electronic apparatus 1000 according to the embodiment of the present invention, and applied to the electronic apparatus 1000.
Wherein steps S10-S30 may be implemented by the processor 300. That is, the visible light camera 200 is used to collect a face image; the processor 300 is used for processing the face image to acquire the iris color; and activates one of the at least two infrared light sources based on the color of the iris.
The iris recognition assembly 100 further includes an infrared camera 20, and the infrared camera 20 is configured to receive reflected light rays of infrared light emitted from an infrared light source as an effective light source at the iris to form an iris image. The illumination range of the infrared light source assembly 10, the field of view of the infrared camera 20, and the field of view of the visible light camera 200 at least partially overlap.
It is understood that the infrared camera 20 and the visible light camera 200 are used to collect the related images of the human eye, and the infrared light source assembly 10 is used to provide the necessary infrared light during iris recognition. Thus, the illumination range of the infrared light source assembly 10, the field of view of the infrared camera 20, and the field of view of the visible light camera 200 should at least partially overlap to achieve the necessary steps of iris recognition.
With the improvement of the importance of information security, more and more consumer electronic devices encrypt information to protect personal information security of users, and obtain rights to acquire corresponding information and operations in a corresponding verification manner. The authentication method usually includes a text-pattern password such as a character password and a pattern password, however, such a password is usually easy to be broken, thereby disabling encryption. In addition, some electronic devices such as mobile phones and tablet computers also provide fingerprints as an encryption mode, a user verifies the fingerprints through fingerprint identification, and although the fingerprints have strong differences, the fingerprints are easy to steal by others and are made into fake fingerprints such as finger models for verification, which is also not beneficial to information security. In this case, the iris recognition technology is beginning to be adopted by some electronic devices as a more secure authentication method.
The iris identification is to determine the identity of a user by comparing the similarity between iris image characteristics, and the iris information has uniqueness, is not easy to copy and has higher safety.
Iris recognition generally requires processes of iris image acquisition, iris image processing, and iris image recognition.
In the process of acquiring the iris image, a special iris identification module is required to acquire the iris image, generally, the iris identification module comprises a camera and a light source, wherein the light source selects infrared light for protecting the safety of human eyes and acquiring the iris image with rich textures, and correspondingly, the camera selects the infrared camera.
The iris colors of different races are usually different, for example, the iris color of the white European and American race is usually blue-green, while the iris color of the yellow Asian race is usually black. The response efficiency and effect of different color irises to the same operating wavelength are different, for example, for blue-green irises, an iris image can be obtained by using visible light with a wavelength of 700nm, but for black irises, the iris image cannot be formed.
It can be understood that when only a single operating wavelength of the infrared light source is provided in the iris identification module, a compromise is usually required, and the infrared light source is not the best choice for a specific color of iris.
The infrared light source component 10 of the embodiment of the invention comprises at least two groups of infrared light sources, and the working wavelengths of the at least two groups of infrared light sources are different, so that the infrared light source with the optimal working wavelength matched with the iris color can be selected to emit infrared light according to the actual situation of the iris of a user, and an iris image with better effect can be acquired.
It is understood that the image sensor of the infrared camera 20 is covered with an infrared filter, which only allows infrared light to pass through to form a black-and-white image, however, obtaining race information through skin color or iris color or other color information is required to be achieved through processing a color image. Therefore, the visible light camera 200 needs to be fitted. The visible light camera 200 is also a conventional camera having RGB filters, and may be a front camera of the electronic device 1000 in general.
The face of the user is imaged through the visible light camera 200, the face image is processed to obtain the iris color, and then the infrared light source of the working wavelength corresponding to the iris color is controlled to be started according to the iris color so as to perform iris recognition.
In summary, in the control method of the infrared light source module and the electronic device 1000 according to the embodiments of the present invention, the visible light camera 200 is matched with the iris recognition module 100, the iris color information is obtained by the visible light camera 200 before iris recognition, the infrared light sources with corresponding wavelengths in the iris recognition module 100 are started according to the iris color for iris recognition, and the infrared light sources with different working wavelengths are started for users of different races, so that on one hand, the applicability of the iris recognition module is increased, and on the other hand, the efficiency of iris recognition is improved.
In some embodiments, the electronic device 1000 includes a mobile phone, a tablet computer, a smart wearable device, a smart home device, and the like.
Referring to fig. 3, in some embodiments, step S10 includes the steps of:
closing or keeping the infrared identification module closed; and
and starting the visible light camera.
In some embodiments, the steps of turning off or keeping off the infrared identification module and turning on the visible camera may be implemented by the processor 300. That is, the processor 300 is used to turn off or keep off the infrared recognition module 100 and turn on the visible light camera 200.
It can be understood that the infrared identification module 100 cannot be used to acquire the iris color information, and the infrared identification module 100 has high power consumption. Therefore, when a set of infrared light sources corresponding to a preferred operating wavelength is not determined, the infrared identification module 100 may be turned off or kept turned off. For example, if the iris recognition module 100 is in an on state, the infrared light source module 10 or the infrared camera 20 is controlled to be turned off. If the iris recognition module 100 is in the off state, the iris recognition module is kept in the off state.
Meanwhile, the visible light camera 200 is started to collect the face image.
Therefore, each component for iris recognition can be controlled to be orderly turned on and off, and high power consumption caused by continuous turning-on of the infrared light source can be saved.
In certain embodiments, step S20 includes the steps of:
processing the face image to identify an iris; and
the face image is processed to obtain the iris color.
In some embodiments, the steps of processing the face image to identify the iris and processing the face image to derive the iris color may be performed by the processor 300. Alternatively, the processor 300 is configured to process the face image to identify an iris and process the face image to obtain an iris color.
Specifically, the iris is an annular membrane that is located in the middle of the eyeball, between the sclera and the pupil. When the image is processed, the eyeball position in the face image can be determined through information such as the characteristic points, and the color of the iris is further recognized. And after the color of the iris is determined, starting an infrared light source with working wavelength corresponding to the color of the iris and an infrared camera to acquire an iris image.
Referring to fig. 4, in some embodiments, step S20 includes the following steps:
recognizing the skin color of the human face according to the human face image; and
and determining the color of the iris according to the skin color of the human face.
In some embodiments, the steps of identifying a face skin color from the face image and determining an iris color from the face skin color may be performed by the processor 300. Alternatively, the processor 300 is configured to identify a face skin color from the face image and determine an iris color from the face skin color.
Specifically, the race information can be determined according to the skin color of the human face, and the iris colors of the determined races can be determined and are basically the same, so that the iris colors can be determined according to the skin color of the human face, and the working wavelength of the infrared light source can be further determined.
Skin tone may generally include white, yellow, black, and the like. The pupil color is typically cyan when skin tone is white, while the iris color is typically brown or black when skin is yellow or black.
Referring to fig. 5, in such an embodiment, step S30 includes the following steps:
establishing a matching relation between the iris color and at least two infrared light sources;
and starting the infrared light source matched with the iris color according to the iris color.
In some embodiments, the step of activating an infrared light source that matches the iris color based on the iris color may be performed by processor 300. Alternatively, the processor 300 is configured to determine a set of infrared light sources corresponding to the operating wavelength according to the iris color and the matching relationship, and activate the set of infrared light sources corresponding to the operating wavelength.
The electronic device 1000 may be preset with a matching relationship including a plurality of pre-stored colors and a plurality of pre-stored operating wavelengths before leaving the factory, where each pre-stored color corresponds to one pre-stored operating wavelength, and the pre-stored operating wavelength corresponds to the operating wavelength of the infrared light source.
The color may be a range of colors rather than a certain color, and thus, the color application range is wider.
The color in the corresponding relationship can be determined according to the statistics of the iris color, and for example, the color can generally include cyan, brown, black, and the like. The pre-stored working wavelength is also the infrared wavelength with better iris recognition effect for the pre-stored iris color. The operating wavelength of the infrared light source assembly 10 may be selected to be the same as the operating wavelength pre-stored in the look-up table.
The pre-stored working wavelength is also the infrared wavelength which corresponds to the pre-stored color and has better iris recognition effect.
In operation, after the color of the iris is obtained through the visible light camera or the color of the iris is determined according to the skin color of the human face, the matching relation is inquired, the pre-stored color corresponding to the obtained color of the iris is determined, and then the corresponding pre-stored working wavelength is determined according to the pre-stored color so as to select the infrared light source with the corresponding working wavelength to start.
In certain embodiments, step S30 further includes the steps of:
the visible camera is turned off.
In some embodiments, the step of turning off the visible light camera may be implemented by the processor 300. Alternatively, the processor 300 is configured to turn off the visible light camera 200.
It can be understood that the visible light camera 200 has high power consumption, and is continuously turned on for a long time, so that the power consumption is high when power is supplied, and the heat generation is high when the heat is supplied, which may affect the service life of the components. And the visible light camera is only used for collecting color information to obtain the color of the iris, and can be closed in the process of iris identification.
In some embodiments, the iris recognition module 100 is generally used for recognizing the identity of a user currently using the electronic device 1000, and therefore the iris recognition module 100 is generally disposed in front of the electronic device 1000, i.e., on the front panel, for example, on the top of the front panel. It is understood that the iris recognition module 100 and the visible light camera 200 are disposed in the housing of the electronic device 1000 and exposed from the front panel.
In some embodiments, an infrared light source includes an infrared light source wafer chip, a substrate for providing support for the infrared light source, and a package. The infrared light source wafer chip is arranged on the substrate in a predetermined mode. It will be appreciated that the wafer determines the operating wavelength of the infrared light source. The infrared light source assembly 100 includes at least two groups of infrared light sources with operating wavelengths, that is, the operating wavelengths of the infrared light source wafer chips disposed on the substrate in the two groups of infrared light sources. Therefore, the requirement for acquiring iris characteristics of different users can be met. For example, in some examples, the operating wavelengths of the wafers of the two sets of infrared light sources may include 780nm and 850nm, respectively. Wherein, the infrared light with the working wavelength of 780nm has better effect on the blue-green iris in the iris identification process. And the infrared light of 850nm has better effect on the black iris in the iris identification process.
The packaging body can be made of materials such as colloid, resin and the like, the upper surface of the packaging body is flush with the upper surface of the wafer, the packaging body further comprises a transparent cover plate covering the upper surface of the wafer chip and used as an infrared light emission window, the cover plate can be made of materials with good transmission performance such as common plastics and glass, and a lens capable of scattering infrared light can be adopted, so that the working range of the infrared light is enlarged.
The infrared light source wafer chip is packaged by the packaging body to form an infrared light source, the infrared light source can be connected with a mainboard of the electronic equipment through the board-to-board connector, and the main power supply of the electronic equipment supplies power to the infrared light source wafer chip.
In some examples, each set of infrared light sources may include one infrared light source wafer chip, i.e., one infrared light source wafer chip is packaged per package. In some other examples, a plurality of infrared light source wafer chips may be packaged together in the same package, that is, each group of infrared light sources includes a plurality of infrared light source wafer chips. The optical axes of the plurality of infrared light source wafer chips may be parallel to the optical axis of the infrared camera 20, or may form a certain included angle with the optical axis of the infrared camera 20.
In some embodiments, the substrate is annular, and the plurality of infrared light source wafer chips are distributed along the circumferential direction of the substrate.
In such an embodiment, the infrared camera 20 is disposed inside the infrared light source.
Specifically, the substrate may have a circular ring shape or a rectangular ring shape. Generally, the power of the infrared light source is limited to a certain extent for the safety of the user, so that the effective working distance of the wafer is usually 10-30 cm, and the infrared camera 20 can clearly acquire the iris image within the effective working range. When the infrared camera 20 is located inside the infrared light sources, the distance from each of the plurality of infrared light sources distributed in a ring shape to the sensor of the infrared camera 20 is substantially the same, and the working distances of the respective infrared light sources are also substantially the same.
The rectangular ring shape is easy to manufacture but only allows a limited number of wafer dies to be substantially equidistant from the sensor of the infrared camera 20, and the working distances of different wafer dies may be different, so that in operation, a user may properly adjust the working distances when activating infrared light sources of different operating wavelengths.
Specifically, the plurality of groups of infrared light source assemblies 10 may be respectively arc-shaped and jointly form a ring.
In some embodiments, the infrared light source wafer chips comprise infrared LED wafer chips.
The LED wafer chip has better thermal property, electrical property, optical property and mechanical property, and is easy to manufacture and low in price.
In some embodiments, the number of infrared light sources per operating wavelength is the same or different.
Specifically, when the operating wavelength is shorter, for example 780nm, the iris light source is more effective for blue-green, and a fill-in light using visible light for blue-green iris can be an effective light source, even infrared light with longer wavelength can be an effective light source, and a black iris corresponding to infrared light with longer wavelength, for example 850nm, can image the iris only under the irradiation of the current wavelength or longer wavelength, and is easily influenced by the environment. Therefore, the longer the wavelength of the infrared light sources, the more the number of the infrared light sources is set, the requirements of starting different groups of infrared light sources under different working conditions and meeting multi-level power consumption can be met.
In some embodiments, the infrared light source assembly 10 further comprises a driving element for selectively driving at least one of the infrared light source wafer chips to emit light.
In such an embodiment, the driving element includes a switch for connecting each infrared light source wafer chip with the corresponding driving source, and a control circuit for controlling the switch to be turned on and off.
It can be understood that the operating wavelengths of the plurality of groups of infrared light sources are different, a part of the groups of infrared light sources are selectively turned on according to user selection or use conditions to emit infrared light, and the on-off of the corresponding wafer chip and the driving source is controlled by controlling the on-off of the switch, so that the control of the infrared light sources can be realized. Control of the switches may be implemented by processor 300.
The electronic device comprises a shell, a processor, a memory, a circuit board, a power circuit, an iris recognition module and a visible light camera. The iris identification module comprises an infrared light source assembly, the infrared light source assembly comprises at least two infrared light sources, and the working wavelengths of the at least two infrared light sources are different. The circuit board is arranged in the space enclosed by the shell, and the processor and the memory are arranged on the circuit board. The power supply circuit is used for supplying power to each circuit or device of the electronic device. The memory is for storing executable program code. The processor executes a program corresponding to the executable program code by reading the executable program code stored in the memory to implement the control method of any of the embodiments of the present invention described above. In this process, the processor is configured to perform the steps of:
collecting a face image through a visible light camera;
acquiring the color of an iris according to the face image; and
activating one of the at least two infrared light sources based on the color of the iris.
In certain embodiments, the processor is configured to perform the steps of:
closing or keeping the infrared identification module closed; and
and starting the visible light camera.
In certain embodiments, the processor is configured to perform the steps of:
processing the face image to identify an iris; and
the face image is processed to obtain the iris color.
In certain embodiments, the processor is configured to perform the steps of:
obtaining the skin color of the human face according to the human face image; and
and determining the color of the iris according to the skin color of the human face.
In certain embodiments, the processor is configured to perform the steps of:
and starting the infrared light source matched with the iris color according to the iris color.
In certain embodiments, the processor is configured to perform the steps of:
the visible camera is turned off.
It should be noted that the foregoing explanation of the control method and the electronic device 1000 is also applicable to the electronic device according to the embodiment of the present invention, and is not repeated herein.
The computer-readable storage medium according to the embodiment of the present invention has instructions stored therein, and when the processor of the electronic device executes the instructions, the electronic device executes the control method according to the embodiment of the present invention, and the foregoing explanations on the control method and the electronic device 1000 are also applicable to the computer-readable storage medium according to the embodiment of the present invention, and are not repeated herein.
In summary, in the electronic device and the computer-readable storage medium according to the embodiments of the present invention, the visible light camera is matched with the iris recognition module, the iris color information is obtained by the visible light camera before iris recognition, the infrared light sources with corresponding wavelengths in the iris recognition module are started according to the iris color for iris recognition, and the infrared light sources with different working wavelengths are started for users of different races, so that the applicability of the iris recognition module is increased, and the iris recognition efficiency is improved.
In the description of the embodiments of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the embodiments of the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or the first and second features being in contact, not directly, but via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The above disclosure provides many different embodiments or examples for implementing different configurations of embodiments of the invention. In order to simplify the disclosure of embodiments of the invention, specific example components and arrangements are described above. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, embodiments of the invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, embodiments of the present invention provide examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processing module-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of embodiments of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (8)
1. A control method of an infrared light source component is used for an electronic device and is characterized in that the electronic device comprises an iris recognition module and a visible light camera, the iris identification module comprises an infrared light source component and an infrared camera, the infrared light source component comprises at least two infrared light sources, the infrared camera is used for receiving reflected light of infrared light of the at least two infrared light sources on the iris to form an iris image, each infrared light source comprises one or more infrared light source wafer chips, the working distances from the infrared light source wafer chips to the infrared camera are different, wherein the number of the infrared light sources having the longer operating wavelength is greater than the number of the infrared light sources having the shorter operating wavelength, the working wavelengths of the at least two infrared light sources are different, and the control method comprises the following steps:
closing or keeping closed the iris recognition module;
starting the visible light camera, and acquiring a face image through the visible light camera;
obtaining the skin color of the human face according to the human face image;
determining the color of an iris according to the skin color of the human face;
starting one of the at least two infrared light sources according to the iris color, wherein one of the two infrared light sources is matched with the acquired iris color, and when the infrared light sources with different working wavelengths are started, the working distance of the infrared light source component is adjusted; and
and iris recognition is carried out according to the iris image acquired by the infrared camera.
2. The control method of claim 1, wherein the step of controlling the visible light camera to capture the face image comprises the steps of:
closing or keeping closing the infrared identification module; and
and starting the visible light camera.
3. The control method of claim 1, wherein said step of activating one of said at least two infrared light sources based on said iris color comprises the steps of:
establishing a matching relation between the iris color and the at least two infrared light sources;
and starting an infrared light source matched with the iris color according to the iris color.
4. The control method of claim 3, wherein said step of activating one of said at least two infrared light sources based on said iris color comprises the steps of:
and closing the visible light camera.
5. An electronic device is characterized by comprising an iris recognition module and a visible light camera, wherein the iris recognition module comprises an infrared light source assembly and an infrared camera, the infrared light source assembly comprises at least two infrared light sources, the infrared camera is used for receiving reflected light of infrared light of the at least two infrared light sources on an iris to form an iris image, each infrared light source comprises one or more infrared light source wafer chips, the working distances from the different infrared light source wafer chips to the infrared camera are different, the working wavelengths of the at least two infrared light sources are different, the number of the infrared light sources with long working wavelengths is more than that of the infrared light sources with short working wavelengths, the electronic device further comprises a processor, and the visible light camera is used for collecting face images, the processor is configured to:
closing or keeping closed the iris recognition module;
starting the visible light camera, and acquiring a face image through the visible light camera;
obtaining the skin color of the human face according to the human face image;
determining the color of an iris according to the skin color of the human face;
and starting one of the at least two infrared light sources according to the iris color, wherein one of the two infrared light sources is matched with the acquired iris color, when the infrared light sources with different working wavelengths are started, the working distance of the infrared light source component is adjusted, and iris recognition is carried out according to the iris image acquired by the infrared camera.
6. The electronic device of claim 5, wherein an illumination range of the infrared light source assembly, a field of view of the infrared camera, and a field of view of the visible light camera at least partially overlap.
7. An electronic device, comprising an iris recognition module and a visible light camera, wherein the iris recognition module comprises an infrared light source module and an infrared camera, the infrared light source module comprises at least two infrared light sources, the infrared camera is used for receiving reflected light of infrared light of the at least two infrared light sources on an iris to form an iris image, each infrared light source comprises one or more infrared light source wafer chips, working distances from the infrared light source wafer chips to the infrared camera are different, working wavelengths of the at least two infrared light sources are different, the number of the infrared light sources with long working wavelengths is greater than the number of the infrared light sources with short working wavelengths, the electronic device further comprises a memory and a processor, the memory is used for storing executable program codes, the processor executes a program corresponding to the executable program code by reading the executable program code stored in the memory, for executing the control method of any one of claims 1 to 4.
8. A computer-readable storage medium having instructions stored therein, which when executed by a processor of an electronic device, the electronic device performs the control method of any one of claims 1 to 4.
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| CN108171227A (en) * | 2017-12-13 | 2018-06-15 | 广东欧珀移动通信有限公司 | For the solution lock set and electronic device of electronic device |
| CN108616703A (en) * | 2018-04-23 | 2018-10-02 | Oppo广东移动通信有限公司 | Electronic device and its control method, computer equipment and readable storage medium storing program for executing |
| CN108600588B (en) * | 2018-05-09 | 2020-12-18 | 南京微智新科技有限公司 | Multi-camera device and method based on Android system |
| WO2019222867A1 (en) * | 2018-05-21 | 2019-11-28 | Lu Kuanyu | Single multi-frequency infrared light-emitting diode and use thereof |
| CN110413324B (en) * | 2019-06-30 | 2021-07-16 | 联想(北京)有限公司 | Control method, control device and storage medium |
| CN111091081A (en) * | 2019-12-09 | 2020-05-01 | 武汉虹识技术有限公司 | Infrared supplementary lighting adjustment method and system based on iris recognition |
| CN113536863A (en) * | 2020-04-22 | 2021-10-22 | 上海聚虹光电科技有限公司 | Spectral band selection method for self-adaptive iris gray scale |
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| CN205899558U (en) * | 2016-04-26 | 2017-01-18 | 富鸿扬精密工业（深圳）有限公司 | Iris recognition device |
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| US8374404B2 (en) * | 2009-02-13 | 2013-02-12 | Raytheon Company | Iris recognition using hyper-spectral signatures |
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