CN108764222B - Display screen, electronic device and iris recognition method - Google Patents
Display screen, electronic device and iris recognition method Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000012795 verification Methods 0.000 claims description 24
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 238000003384 imaging method Methods 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 5
- 210000000554 iris Anatomy 0.000 claims 22
- 238000007781 pre-processing Methods 0.000 description 8
- 238000004590 computer program Methods 0.000 description 5
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- G—PHYSICS
- 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
- G06V40/193—Preprocessing; Feature extraction
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
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- G—PHYSICS
- 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
- G06V40/19—Sensors therefor
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Abstract
The application provides a display screen, which comprises a plurality of display units distributed in an array in the whole display area of the display screen, a plurality of infrared emission units embedded in a first preset area close to the boundary of the display area in the display area of the display screen, and a plurality of acquisition units embedded in a second preset area in the display area of the display screen; the plurality of acquisition units are combined into an iris image sensor; the infrared emission units are used for emitting infrared light to the front of the display screen so as to irradiate the iris of a target object positioned in front of the display screen, the acquisition units are used for acquiring image signals of the iris irradiated with the infrared light, and the image signals are used for generating a target image for identifying iris characteristics. The application also provides an electronic device and an iris recognition method. The method and the device can realize iris recognition and improve the screen occupation ratio of the electronic device.
Description
Technical Field
The application relates to the technical field of electronics, in particular to a display screen, an electronic device and an iris recognition method.
Background
In the prior art, with the progress of technology, iris recognition has been widely applied to electronic devices. In the prior art, identification components such as an infrared emitter and an iris sensor for iris identification are generally required to be arranged in an area outside a display area of an electronic device, so that a non-display area is required to be reserved for placing the identification modules, and the improvement of the screen ratio of the electronic device is limited. With the increasing demand of users for high screen ratio of electronic devices, how to satisfy the demand of people for iris recognition and the demand of improving the screen ratio becomes a problem to be solved.
Disclosure of Invention
The application provides a display screen, an electronic device and an iris recognition method for realizing high screen duty ratio.
In one aspect, the application provides a display screen, which comprises a plurality of display units distributed in an array in the whole display area of the display screen, a plurality of infrared emission units embedded in a first preset area close to the boundary of the display area in the display area of the display screen, and a plurality of acquisition units embedded in a second preset area in the display area of the display screen; the plurality of acquisition units are combined into an iris image sensor; the infrared emission units are used for emitting infrared light to the front of the display screen so as to irradiate the iris of a target object positioned in front of the display screen, the acquisition units are used for acquiring image signals of the iris irradiated with the infrared light, and the image signals are used for generating a target image for identifying iris characteristics.
In another aspect, the present application provides an electronic device including a display screen and a processor. The display screen comprises a plurality of display units distributed in an array in the whole display area of the display screen, a plurality of infrared emission units distributed in a first preset area close to the boundary of the display area in the display area of the display screen, and a plurality of acquisition units distributed in a second preset area in the display area of the display screen in an embedded manner; the plurality of acquisition units are combined into an iris image sensor; the infrared emission units are used for emitting infrared light rays to the front of the display screen so as to irradiate the iris of a target object positioned in front of the display screen, and the acquisition units are used for acquiring image signals of the iris irradiated with the infrared light rays. The processor is electrically connected with the plurality of acquisition units, and is used for carrying out imaging processing according to the image signals of the iris irradiated with the infrared light acquired by the plurality of acquisition units to obtain a target image, and identifying iris characteristics according to the target image.
In still another aspect, the present application further provides an iris recognition method, which is applied to an electronic device, where the electronic device includes a display screen, where the display screen includes a plurality of display units distributed in an array over an entire display area of the display screen, a plurality of infrared emission units embedded in a first preset area near a boundary of the display area within the display area of the display screen, and a plurality of acquisition units embedded in a second preset area within the display area of the display screen; the plurality of acquisition units are combined into an iris image sensor; the method comprises the steps of: transmitting infrared rays through a plurality of infrared transmitting units so as to irradiate the iris of a target object positioned in front of the display screen; collecting image signals of the iris irradiated with infrared rays through a plurality of collecting units; and imaging according to the image signals of the iris irradiated with the infrared light acquired by the acquisition units to obtain a target image, and identifying iris characteristics according to the target image.
According to the display screen, the electronic device and the iris recognition method, the recognition components for recognizing the iris features, such as the infrared emission unit and the acquisition unit, are embedded into the display area of the display screen, so that excessive non-display areas are not required to be additionally reserved for placing the recognition components, the screen occupation ratio is effectively improved, and the requirements of three-dimensional feature recognition such as face recognition can be met.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic plan view of a display screen according to an embodiment of the present application.
Fig. 2 is a schematic plan view of a display screen according to another embodiment of the present application.
Fig. 3 is a schematic plan view of a display screen according to still another embodiment of the present application.
Fig. 4 is a block diagram of an electronic device according to an embodiment of the present application.
Fig. 5 is an internal structural diagram of an electronic device according to an embodiment of the present application.
Fig. 6 is a flowchart of an iris recognition method according to an embodiment of the present application.
Detailed Description
The technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. In addition, embodiments of the present application and features of the embodiments may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, and the described embodiments are merely some, rather than all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Fig. 1 is a schematic plan view of a display screen 1 according to an embodiment of the disclosure. The display screen 1 comprises a display area A0, a plurality of display units 11 distributed in an array in the whole display area A0 of the display screen 1, a plurality of infrared emission units 12 distributed in a first preset area A1 close to the boundary of the display area A0 in an embedded manner, and a plurality of acquisition units 13 distributed in a second preset area A2 in the display area A0 in an embedded manner; the plurality of acquisition units 13 are combined into an iris image sensor. That is, the first preset area A1 is located in the display area A0 and is close to the boundary position of the display area A0, and the plurality of acquisition units 13 distributed in the display area A0 integrally form an iris image sensor.
The infrared emission units 12 are used for emitting infrared light to the front of the display screen 1 to irradiate the iris of the target object positioned in front of the display screen 1, and the acquisition units 13 are used for acquiring image signals of the iris irradiated with the infrared light, and the image signals are used for generating a target image for identifying iris characteristics.
Therefore, in the application, the identification components for identifying the iris features, such as the infrared emission unit 12 and the acquisition unit 13, are embedded in the display area A0 of the display screen 1, so that excessive non-display areas are not required to be additionally reserved for placing the identification components, the screen occupation ratio is effectively improved, and the iris identification requirement can be met.
As shown in fig. 1, the second preset area A2 is an area outside the first preset area A1 in the display area A0. That is, the sum of the first preset area A1 and the second preset area A2 is the display area A0. Wherein, the area of the first preset area A1 is significantly smaller than the area of the second preset area A2.
For example, the area of the first preset area A1 may be only 1/5, 1/6, etc. of the area of the second preset area A2. Therefore, the first preset area A1 is located only in a small partial area near the boundary of the display area A0, and the infrared emission unit 12 is disposed only in a small partial area near the boundary of the display area A0.
In some embodiments, in the first preset area A1, a corresponding infrared emitting unit 12 is disposed at each display unit 11, and in the second preset area A2, a corresponding photosensitive unit 13 is disposed at each display unit 11. That is, in the first preset area A1, the number of infrared emitting units 12 is the same as the number of display units 11, and in the second preset area A2, the number of photosensitive units 13 is the same as the number of display units 11. It is apparent that in other embodiments, the number of infrared emitting units 12 and the number of display units 11 may be different in the first preset area A1, and the number of photosensitive units 13 and the number of display units 11 may be different in the second preset area A2.
Fig. 2 is a schematic plan view of a display screen 1 according to another embodiment. In another embodiment, as shown in fig. 2, the first preset area A1 and the second preset area A2 are overlapped, that is, the plurality of infrared emitting units 12 and the plurality of infrared emitting units 12 are embedded in the same area and are all disposed near the boundary of the display area A0. For example, as shown in fig. 2, the overlapping first preset area A1 and second preset area A2 are disposed near the side S1 at the top of the view of fig. 2.
As shown in fig. 2, in the first preset area a and the second preset area a, which are overlapped, a corresponding infrared emitting unit 12 and a corresponding photosensitive unit 13 are disposed at each display unit 11.
That is, the number of the infrared emission units 12 and the photosensitive units 13 is the same as that of the display units 11 in the first preset area a and the second preset area which are overlapped.
Obviously, in other embodiments, the number of the infrared emitting units 12 and the photosensitive units 13 is equal and may be greater or less than the number of the display units 11 in the first preset area a and the second preset area which are overlapped. For example, one infrared emission unit 12 and one photosensitive unit 13 may be provided at each of the two display units 11, or two infrared emission units 12 and two photosensitive units 13 may be provided at each of the display units 11.
In other embodiments, the number of infrared emission units 12 and photosensitive units 13 may also be different in the first preset area a and the second preset area a that are overlapped, i.e., the number of infrared emission units 12 may be greater than or less than the number of photosensitive units 13.
Fig. 3 is a schematic plan view of a display screen according to another embodiment. In still another embodiment, as shown in fig. 3, the number of the first preset areas A1 is plural, and the first preset areas A1 are respectively disposed at positions close to plural sides of the display area A0.
As shown in fig. 3, the number of the first preset areas A1 may be 4, and the display area A0 may be an approximately rectangular area including four sides S1. The four first preset areas A1 are respectively disposed at positions close to four sides S1 of the display area A0. A plurality of infrared emission units 12 are embedded in each first preset area A1.
The size of the first preset area A1 may be significantly smaller than the size of the display area A0, for example, 1/10, 1/8, etc. of the display area A0.
As shown in fig. 3, the second preset area A2 is overlapped with the first preset area A1, and it is obvious that when the first preset area A1 is multiple, the second preset area A2 is also multiple necessarily, so that in each overlapped first preset area A1 and second preset area A1, a plurality of infrared emitting units 12 and a plurality of collecting units 13 are distributed in an embedded manner.
In some embodiments, the second preset area A2 may be an area other than the four first preset areas A1 in the display area A0.
Wherein, for a more specific description of the distribution of the infrared emission units 12 and the acquisition units 13 when the first preset area A1 and the second preset area A2 do not coincide or coincide, reference may be made to the descriptions of fig. 1 and fig. 2, respectively.
Therefore, in the present application, the number of the first preset areas A1 may be one, and the first preset areas A1 are disposed near one side S1 of the display area A0; alternatively, the number of the first preset areas may be plural, and the first preset areas are respectively disposed at positions close to the plural sides S1 of the display area A0.
Wherein each display unit 11 corresponds to one pixel of the display screen 1, and the number of the display units 11 is determined by the resolution of the display screen 1.
In this application, the display screen 1 may be an OLED (Organic Light Emitting Diode ) display screen, and each display unit 11 may be composed of one or more organic light emitting diodes.
In other embodiments, the display screen 1 may be an LCD (Liquid crystal display ) display screen, and each display unit 11 may include three liquid crystal cells and red, green, or blue filter sheets disposed over each cell, thereby forming a display unit including RGB three sub-pixels.
The lighting unit 13 may include an infrared and visible light sensing unit, and may be a sensing device such as an infrared and visible light CCD (charge coupled device ) photodiode or a sensing device such as an infrared and visible light CMOS photodiode. The image signal collected by the lighting unit 13 may be an optical signal including infrared and visible light. Each acquisition unit 13 corresponds to a photosensitive pixel of the iris image sensor, so that the image signals acquired by all the acquisition units 13 disposed in the display area of the display screen 1 can be used to form a complete image.
The infrared emitting units 12 may be infrared light emitting diodes or the like, and each infrared emitting unit 12 may include one or more infrared light emitting diodes.
Since the iris is more clearly distinguished in the infrared light irradiation, the characteristics of the iris can be more accurately represented by the image signals acquired by the acquisition unit 13.
1-3, the display screen 1 further includes a non-display area F0 surrounding the display area A0. By embedding the recognition components for recognizing iris features, such as the infrared emission unit 12, the acquisition unit 13, etc., in the display area A0 of the display screen 1, the non-display area F0 can be made small. In some embodiments, the non-display area F0 may even be eliminated, and the whole screen of the display screen 1 is the display area A0, so that the full screen effect is achieved.
Referring to fig. 4, a block diagram of an electronic device in an embodiment is shown. As shown in fig. 4, the electronic device 100 includes the aforementioned display screen 1 and the processor 2.
As mentioned above, the display screen 1 includes a display area A0, and further includes a plurality of display units 11 distributed in an array over the entire display area A0 of the display screen 1, a plurality of infrared emission units 12 embedded in a first preset area A1 within the display area A0 and close to the boundary of the display area A0, and a plurality of acquisition units 13 embedded in a second preset area A2 within the display area A0; the plurality of acquisition units 13 are combined into an iris image sensor. That is, the first preset area A1 is located in the display area A0 and is close to the boundary position of the display area A0. The infrared emitting units 12 are used for emitting infrared light to the front of the display screen 1 to irradiate the iris of the target object positioned in front of the display screen 1, and the collecting units 13 are used for collecting image signals of the iris irradiated with the infrared light.
The processor 2 is electrically connected with the plurality of acquisition units 13, and is configured to perform imaging processing according to the image signals acquired by the plurality of acquisition units to obtain a target image, and identify iris features according to the target image.
A more specific description of the display 1 will be referred to in the related description of fig. 1 to 3, and will not be repeated here.
In some embodiments, the processor 2 identifies iris features from the target image, including: the processor 2 pre-processes the target image and then performs feature extraction to identify iris features.
The preprocessing comprises preprocessing operations such as image smoothing, edge detection, image separation and the like.
Specifically, the preprocessing comprises three parts of iris positioning, target image normalization and image enhancement. The target object is human eyes, the target image is usually a human eye image, the preprocessing is used for dividing or extracting an iris region image from the human eye image, noise interference is reduced, and preparation is made for feature extraction and matching.
In some embodiments, the target object is a human eye, and the processor 2 is further configured to control the infrared emitting units 12 to emit infrared light toward the front of the display screen 1 when receiving an input operation requesting face recognition verification. That is, in some embodiments, the infrared emitting units 12 are in a standby state, and emit infrared light to the front of the display screen 1 under the control of the processor 2 when receiving an input operation requesting face recognition verification.
As shown in fig. 4, the electronic device 100 further includes a motion sensor 4, the motion sensor 4 is configured to detect whether the electronic device 100 moves, the processor 2 is electrically connected to the motion sensor 4, and when the motion sensor 4 detects that the electronic device 100 moves and the display screen 1 is in a locked state, the processor 2 determines that the input operation for requesting the face recognition verification is received, that is, determines that the face recognition verification is required to be performed to unlock the display screen 1 at this time. The motion sensor 4 may be an accelerometer, a gyroscope, or the like.
In other embodiments, the input operation for requesting face recognition verification may also be an operation for logging into a certain application software, a payment operation, etc.
In some embodiments, the memory 3 further stores a preset iris feature template. The processor 2 is further configured to, after identifying the iris features of the target object, compare the iris features of the identified target object with a preset iris feature template, and perform a next operation, such as unlocking the display screen 1, logging in the application software, passing payment verification, etc., when the two are determined to match.
The preset iris feature template is iris feature information pre-entered by a legal user of the electronic device 100.
Referring back to fig. 4, as shown in fig. 4, the electronic device 100 further includes a power source 5 and a switch assembly 6, the switch assembly 6 is connected between the infrared emission units 12 in the first preset area A1 and the power source 5, and when receiving an input operation requesting for face recognition verification, the processor 2 controls the switch assembly 6 to conduct the electrical connection between the power source 2 and the infrared emission units 12, and controls to apply an operating voltage to the infrared emission units 12 so that the infrared emission units 12 are powered on to operate and emit infrared light to the front of the display screen 1.
The switch component 6 may be a digital control switch, such as a MOS transistor, a BJT transistor, etc.
As shown in fig. 4, the electronic device 100 further includes an attitude sensor 7, and when the first preset area A1 is plural, the processor 2 further determines a placement state of the current electronic device 100 according to the attitude sensor 7 when receiving an input operation requesting iris recognition verification, determines a target first preset area A1 according to the placement state of the electronic device 100, and controls the plurality of infrared emitting units 12 in the target first preset area A1 to emit infrared light to the front of the display screen 1.
In some embodiments, the target first preset area A1 is a first preset area A1 near the uppermost side S1 of the current placement posture of the electronic device 100. That is, if the electronic device 100 is placed vertically, the first preset area A1 at the top edge of the electronic device 100 placed vertically at this time is the target first preset area A1. Since the eyes generally correspond to the position of the uppermost side of the electronic device 100 when the user holds the electronic device 100 such as a mobile phone, the iris recognition requirement can be satisfied by turning on the infrared emitting unit 12 in the first preset area A1 at the uppermost side S1, without turning on the infrared emitting units 12 in other first preset areas A1, so as to save energy consumption.
In addition, when the target first preset area A1 is multiple, the user can hold the electronic device 100 at will, no matter which side of the current display area A0 is at the uppermost side, the infrared emission unit 12 in the first preset area A1 near the uppermost side S1 can be controlled to be turned on, so that the user can be ensured to hold the electronic device 100 at will and irradiate the infrared light emitted by the infrared emission unit 12 in the corresponding first preset area A1, and smooth iris recognition is ensured.
The gesture sensor 7 may include an angle sensor, a direction sensor, etc., and may detect parameters such as a placement angle, a direction, etc. of the electronic device 100 to determine a placement gesture of the electronic device 100.
Fig. 5 is a schematic diagram illustrating an internal structure of the electronic device 100 according to an embodiment. As shown in fig. 5, in some embodiments, the number of the first preset areas A1 is a plurality, for example, as shown in fig. 5, the number of the first preset areas A1 is 4, and the first preset areas A1 are respectively disposed near the four sides S1 of the display area A0.
As shown in fig. 5, the number of the switch assemblies 6 is also plural, and the number is equal to the number of the first preset areas A1, for example, the number of the switch assemblies 6 is also four.
Each switch assembly 6 is connected between the infrared emission units 12 of the corresponding first preset area A1 and the power supply 5, and when the processor 2 receives an input operation requesting for face recognition verification, after determining the target first preset area A1 according to the placement state of the electronic device 100, the switch assemblies 6 corresponding to the target first preset area A1 are controlled to be conducted, so that the power supply 5 and the infrared emission units 12 of the target first preset area A1 are electrically connected, and the infrared emission units 12 of the target first preset area A1 are controlled to be applied with working voltages so as to enable the infrared emission units 12 of the target first preset area A1 to work in an electrifying mode and emit infrared light to the front of the display screen a.
In this application, the front of the display 1 refers to the side of the display 1 displaying the content.
The memory 3 further stores computer program instructions for executing the aforementioned functions after being called by the processor 2.
In this application, the processor 2 is a Central Processing Unit (CPU) having an integrated image processor function. The memory 40 may be a solid state memory, memory card, or the like.
The electronic apparatus 100 according to the embodiment of the present invention may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, and various forms of User Equipment (UE), mobile Station (MS), terminal devices (terminal devices), and so on. For convenience of description, the above-mentioned apparatuses are collectively referred to as an electronic device.
Referring to fig. 6, a flowchart of an iris recognition method in an embodiment of the application is shown. The iris recognition method can be applied to the electronic device 100. As shown in fig. 6, the method may include the steps of:
601. infrared light is emitted by a plurality of infrared emitting units to illuminate the iris of a target object positioned in front of the display screen. In some embodiments, the target object is a human face, and the 601 may specifically include: upon receiving an input operation requesting face recognition verification, the plurality of infrared emission units 12 are controlled to emit infrared rays toward the front of the display screen 1 to form light spots when irradiated to a target object located in front of the display screen 1.
In some embodiments, the receiving an input requesting face recognition verification includes: when the motion sensor 4 detects that the electronic device 100 moves and the display screen 1 is in a locked state, it is determined that the input operation requesting the face recognition verification is received.
In other embodiments, the receiving an input requesting face recognition verification includes: and when an operation of logging in a certain application software, a payment operation and the like are received, determining that the input operation of requesting face recognition verification is received.
Further, the electronic device 100 includes a plurality of first preset areas A1, which are respectively disposed at positions near a plurality of sides S1 of the display area A1 of the electronic device 100, the electronic device 100 further includes an attitude sensor 7, and when receiving an input operation requesting for iris recognition verification, the electronic device controls the plurality of infrared emitting units to emit infrared light to the front of the display screen, and further includes: upon receiving an input operation requesting iris recognition verification, determining a placement state of the current electronic device 100 according to the posture sensor 7; determining a target first preset area A1 according to the placement state of the electronic device 100; and controlling the infrared emission units 12 in the target first preset area A1 to emit infrared rays to the front of the display screen 1.
In some embodiments, the electronic device 100 includes a plurality of switch assemblies 6, each switch assembly 6 is connected between the infrared emitting units 12 of the corresponding first preset area A1 and the power source 5, and the controlling the infrared emitting units 12 of the target first preset area A1 to emit infrared light to the front of the display screen 1 may include: the switch assembly 6 corresponding to the target first preset area A1 is controlled to be conducted, so that the electric connection between the power supply 5 and the infrared emission units 12 of the target first preset area A1 is conducted, and the application of the working voltage to the infrared emission units 12 of the target first preset area A1 is controlled to enable the infrared emission units 12 of the target first preset area A1 to work in a powered-on mode to emit infrared light rays to the front of the display screen a.
603. The image signal of the iris irradiated with the infrared light is acquired by a plurality of acquisition units 13.
605. And imaging according to the image signals of the iris irradiated with the infrared light acquired by the acquisition units to obtain a target image, and identifying iris characteristics according to the target image.
In some embodiments, the identifying iris features from the target image includes: the target image is preprocessed, and then the iris characteristics are identified by characteristic extraction.
The preprocessing comprises preprocessing operations such as image smoothing, edge detection, image separation and the like.
Specifically, the preprocessing comprises three parts of iris positioning, target image normalization and image enhancement. The target object is human eyes, the target image is usually a human eye image, the preprocessing is used for dividing or extracting an iris region image from the human eye image, noise interference is reduced, and preparation is made for feature extraction and matching.
In some embodiments, the iris recognition method further comprises the steps of: after the iris feature is identified, the identified iris feature is compared with a preset iris feature template, and when the iris feature and the preset iris feature template are determined to be matched, the next operation is performed, such as unlocking the display screen 1, logging in the application software, passing payment verification and the like.
The preset iris feature template is iris feature information pre-entered by a legal user of the electronic device 100.
The embodiment of the present invention also provides a computer storage medium storing a computer program for electronic data exchange, the computer program causing a computer to execute some or all of the steps of any one of the iris recognition methods described in the above method embodiments.
Embodiments of the present invention also provide a computer program product comprising a non-transitory computer-readable storage medium storing a computer program operable to cause a computer to perform part or all of the steps of any one of the unlock control methods described in the method embodiments above.
It should be noted that, for simplicity of description, the foregoing method embodiments are all described as a series of acts, but it should be understood by those skilled in the art that the present invention is not limited by the order of acts described, as some steps may be performed in other orders or concurrently in accordance with the present invention. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present invention.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
In addition, the processor for executing the method steps in the embodiments of the present invention may integrate a plurality of functional units to execute the steps respectively, or may exist individually and physically, for example, the electronic device 100 includes a plurality of functional units such as a controller to execute the corresponding method steps respectively. The functional units included in the electronic device 100 may be implemented in hardware or in software program modules.
The integrated functional units, if implemented in the form of software program modules and sold or used as a stand-alone product, may be stored in a computer readable memory. Based on this understanding, the technical solution of the present invention may be embodied essentially or partly in the form of a software product, or all or part of the technical solution, which is stored in a memory, and includes several instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned memory includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Those of ordinary skill in the art will appreciate that all or a portion of the steps in the various methods of the above embodiments may be implemented by a program that instructs associated hardware, and the program may be stored in a computer readable memory, which may include: flash disk, read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.
While the foregoing is directed to the preferred embodiments of the present application, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the present application, such changes and modifications are also intended to be within the scope of the present application.
Claims (16)
1. The display screen is characterized by comprising a plurality of display units distributed in an array manner in the whole display area of the display screen, a plurality of infrared emission units embedded in a first preset area close to the boundary of the display area in the display area of the display screen, and a plurality of acquisition units embedded in a second preset area in the display area of the display screen; the plurality of acquisition units are combined into an iris image sensor; the infrared emission units are used for emitting infrared light to the front of the display screen so as to irradiate the iris of a target object positioned in front of the display screen, the acquisition units are used for acquiring image signals of the iris irradiated with the infrared light, and the image signals are used for generating a target image for identifying iris characteristics;
the display screen comprises a plurality of first preset areas, a plurality of infrared emission units and a display screen, wherein the plurality of first preset areas are respectively arranged at positions close to a plurality of sides of the display screen, one of the plurality of first preset areas is selected as a target first preset area according to the placement state of the electronic device applied by the display screen, and infrared rays are emitted to the front of the display screen through the plurality of infrared emission units in the target first preset area.
2. The display screen of claim 1, wherein the second preset area is an area outside of the first preset area within the display area, the area of the first preset area being smaller than the area of the second preset area.
3. The display screen of claim 2, wherein in the first predetermined area, a corresponding infrared emitting unit is disposed at each display unit, and in the second predetermined area, a corresponding photosensitive unit is disposed at each display unit.
4. The display screen of claim 1, wherein the second predetermined area and the first predetermined area are coincident and disposed within the display area at a location near a boundary of the display area.
5. The display screen of claim 4, wherein in the first predetermined area and the second predetermined area that are coincident, a corresponding infrared emitting unit and a corresponding photosensitive unit are disposed at each display unit.
6. An electronic device, comprising a display screen and a processor;
the display screen comprises a plurality of display units distributed in an array in the whole display area of the display screen, a plurality of infrared emission units distributed in a first preset area close to the boundary of the display area in the display area of the display screen, and a plurality of acquisition units distributed in a second preset area in the display area of the display screen in an embedded manner; the plurality of acquisition units are combined into an iris image sensor; the infrared emission units are used for emitting infrared light rays to the front of the display screen so as to irradiate the iris of a target object positioned in front of the display screen, and the acquisition units are used for acquiring image signals of the iris irradiated with the infrared light rays;
the processor is electrically connected with the plurality of acquisition units, and is used for carrying out imaging processing according to the image signals of the irises irradiated with the infrared rays acquired by the plurality of acquisition units to obtain a target image, and identifying iris characteristics according to the target image;
the first preset areas are multiple in number and are respectively arranged at positions close to multiple sides of the display area; the electronic device further comprises a gesture sensor, and when the processor receives input operation requesting iris recognition verification, the processor determines the placement state of the current electronic device according to the gesture sensor, determines a first preset target area according to the placement state of the electronic device, and controls the infrared emission units in the first preset target area to emit infrared rays to the front of the display screen.
7. The electronic device of claim 6, wherein the processor identifies iris features from the target image, comprising: the processor pre-processes the target image and then performs feature extraction to identify iris features.
8. The electronic device of claim 6, wherein the second predetermined area is an area outside of the first predetermined area within the display area, the area of the first predetermined area being smaller than the area of the second predetermined area.
9. The electronic device of claim 8, wherein a corresponding infrared emitting unit is disposed at each display unit in the first predetermined area, and a corresponding photosensitive unit is disposed at each display unit in the second predetermined area.
10. The electronic device of claim 6, wherein the second predetermined area and the first predetermined area are coincident and disposed in the display area at a position near a boundary of the display area.
11. The electronic device of claim 10, wherein in the first predetermined area and the second predetermined area, which are coincident, a corresponding infrared emitting unit and a corresponding photosensitive unit are disposed at each display unit.
12. The electronic device of claim 6, wherein the target object is a human eye, and the processor is further configured to control the infrared emitting units to emit infrared light toward the front of the display screen when receiving an input operation requesting iris recognition verification.
13. The electronic device of claim 12, further comprising a power supply and a switch assembly, the switch assembly being connected between the plurality of infrared emission units and the power supply, the processor controlling the switch assembly to turn on an electrical connection between the power supply and the plurality of infrared emission units when receiving an input requesting face recognition verification, and controlling application of an operating voltage to the plurality of infrared emission units such that the plurality of infrared emission units are powered on to emit infrared light in front of the display screen.
14. The electronic device of claim 6, further comprising a power supply and a plurality of switch assemblies, wherein each switch assembly is connected between the infrared emission units of the corresponding first preset area and the power supply, and when receiving an input operation requesting for face recognition verification, the processor controls the switch assemblies corresponding to the target first preset area to be conducted after determining the target first preset area according to a placement state of the electronic device, so as to conduct electrical connection between the power supply and the infrared emission units of the target first preset area, and controls application of an operating voltage to the infrared emission units of the target first preset area to enable the infrared emission units of the target first preset area to operate in a powered-on mode and emit infrared light to the front of the display screen.
15. The iris recognition method is applied to an electronic device, and the electronic device comprises a display screen and is characterized in that the display screen comprises a plurality of display units distributed in an array manner in the whole display area of the display screen, a plurality of infrared emission units which are distributed in a first preset area close to the boundary of the display area in the display area of the display screen in an embedded manner, and a plurality of acquisition units which are distributed in a second preset area in the display area of the display screen in an embedded manner; the plurality of acquisition units are combined into an iris image sensor; the method comprises the steps of:
transmitting infrared rays through a plurality of infrared transmitting units so as to irradiate the iris of a target object positioned in front of the display screen;
collecting image signals of the iris irradiated with infrared rays through a plurality of collecting units;
imaging according to the iris image signals irradiated with infrared light acquired by the acquisition units to obtain a target image, and identifying iris characteristics according to the target image;
the electronic device further comprises an attitude sensor, when receiving an input operation requesting iris recognition verification, the electronic device controls the infrared emission units to emit infrared rays to the front of the display screen, and the electronic device comprises:
when receiving an input operation requesting iris recognition verification, determining the placement state of the current electronic device according to the gesture sensor;
determining a target first preset area according to the placement state of the electronic device; and
and controlling the infrared emission units in the first preset area of the target to emit infrared rays to the front of the display screen.
16. The method of claim 15, wherein the target object is a human eye, the method further comprising:
when receiving the input operation requesting iris recognition verification, controlling the infrared emission units to emit infrared rays to the front of the display screen.
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