CN111523099A - Authorization verification method and device based on pressure track and readable storage medium - Google Patents
Authorization verification method and device based on pressure track and readable storage medium Download PDFInfo
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- CN111523099A CN111523099A CN202010216454.8A CN202010216454A CN111523099A CN 111523099 A CN111523099 A CN 111523099A CN 202010216454 A CN202010216454 A CN 202010216454A CN 111523099 A CN111523099 A CN 111523099A
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- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
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- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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Abstract
The invention relates to a terminal security technology, and discloses an authorization verification method based on a pressure track, which comprises the following steps: the fingerprint pressure trace of an authorized user is collected, fingerprint information and pressure information of the user are collected from the fingerprint pressure trace, and the fingerprint information and the pressure information are subjected to quantization processing and are respectively stored in a first storage area and a second storage area. When a user presses a touch panel of the mobile terminal device, fingerprint information and pressure information generated by pressing are obtained through analysis, and whether the user is the authorized user or not is judged by comparing the fingerprint information and the pressure information generated by pressing with stored fingerprint information and pressure information. The invention also provides an authorization verification device based on the pressure track, electronic equipment and a computer readable storage medium. The invention can verify the identity information of the user through fingerprint identification and pressure identification.
Description
Technical Field
The invention relates to the technical field of terminal security, in particular to an authorization verification method and device based on a pressure track, electronic equipment and a computer readable storage medium.
Background
With the rise of big data and artificial intelligence, people pay more and more attention to the protection of personal information, fingerprint identification or pressure sensing is mainly used for verifying the identity of a user or authorizing the identity of the user at present, but the pressure sensing is only based on a fingerprint identification module so that the system authorization is unsafe, and a fingerprint lock can be opened by stealing fingerprints, so that an authorization system only based on the fingerprint identification module is not reliable any more.
Disclosure of Invention
The invention provides an authorization verification method and device based on a pressure track, electronic equipment and a computer readable storage medium, and mainly aims to solve the problem that user identity information is unreliable only through fingerprint identification or only through pressure identification verification.
In order to achieve the above object, the authorization verification method based on pressure trace provided by the present invention comprises:
collecting fingerprint pressure tracks of authorized users, collecting fingerprint information of the users from the fingerprint pressure tracks, and storing the fingerprint information in a first data storage area of mobile terminal equipment after the fingerprint information is quantized;
separating pressure information in the fingerprint pressure track, and storing the pressure information in a second data storage area of the mobile terminal equipment after quantization processing;
when a user presses the touch panel of the mobile terminal device in a certain pressing mode, fingerprint information and pressure information generated by pressing are obtained through analysis, the fingerprint information in the first data storage area and the pressure information in the second data storage area are called, and whether the user is the authorized user or not is verified through comparing the fingerprint information and the pressure information generated by pressing with the fingerprint information and the pressure information which are called out.
Optionally, after the fingerprint information is quantized, the fingerprint information is stored in a first data storage area of the mobile terminal device, where the fingerprint information includes:
calculating a gray scale frequency field function of the fingerprint information;
calculating the sum H of tangential pixels and the sum V of normal pixels of the fingerprint information;
and storing the gray frequency field function and the sum H of the tangential pixels and the sum V of the normal pixels in a first storage area of the mobile terminal equipment.
Optionally, the calculating a grayscale frequency field function of the fingerprint information includes:
calculating a gray frequency field function f of the fingerprint information by using the following calculation formula:
wherein, v (x) is the total amount of vertical variation of the gray scales of any two points on the fingerprint information; x1 and x2 are the lateral coordinate values of any two points on the fingerprint respectively; h (x) represents a gray function in the vertical direction; a ismIs the average amplitude of the fingerprint waveform; f is the gray frequency field function.
Optionally, the calculating the sum H of tangential pixels and the sum V of normal pixels of the fingerprint information includes:
calculating the sum H of the tangential pixels and the sum V of the normal pixels of the fingerprint information by using the following calculation formula:
wherein, the variation range is preset; (x)0，y0) And the coordinate value is the coordinate value of any point on the fingerprint information.
Optionally, the storing the pressure information in a second data storage area of the mobile terminal device after the pressure information is subjected to quantization processing includes:
calculating a pressure gradient field function of the pressure information;
calculating a pressure direction field function of the pressure information;
and storing the gray frequency field function and the pressure gradient field function and the pressure direction field function in a second storage area of the mobile terminal equipment.
Optionally, the calculating a pressure gradient field function of the pressure information includes:
calculating the pressure gradient field function | T (x, y) | using the following calculation:
Z＝f(x，y)
wherein Z is an instantaneous pressure function; l T (x, y) l is a pressure gradient field function; gx(x, y) is the partial derivative of the instantaneous pressure function Z at point (x, y) with respect to x
Gy(x, y) is the partial derivative of the instantaneous pressure function Z at point (x, y) with respect to y
Optionally, the calculating a pressure direction field function of the pressure information includes:
calculating the pressure direction field function theta (x, y) by using the following calculation formula:
wherein, Vx(x, y) is the pressure applied in the x direction; vy(x, y) is the pressure applied in the y direction; θ (x, y) is a pressure direction field function; w is a numberStarting direction parameters; gx(x, y) is the partial derivative of the instantaneous pressure function Z at point (x, y) with respect to x
Gy(x, y) is the partial derivative of the instantaneous pressure function Z at point (x, y) with respect to y
In order to solve the above problem, the present invention further provides an authorization verification apparatus based on a pressure trace, the apparatus including:
the fingerprint information processing module is used for collecting fingerprint pressure tracks of authorized users, collecting fingerprint information of the users from the fingerprint pressure tracks, and storing the fingerprint information in a first data storage area of the mobile terminal equipment after the fingerprint information is quantized;
the pressure information processing module is used for separating pressure information in the fingerprint pressure track, and storing the pressure information in a second data storage area of the mobile terminal equipment after quantization processing;
the information calling module is used for analyzing and obtaining fingerprint information and pressure information generated by pressing when a user presses the touch panel of the mobile terminal equipment in a certain pressing mode, and calling the fingerprint information in the first data storage area and the pressure information in the second data storage area;
and the authorization judging module is used for verifying whether the user is the authorized user by comparing the fingerprint information and the pressure information generated by pressing with the fingerprint information and the pressure information obtained by adjusting.
In order to solve the above problem, the present invention also provides an electronic device, including:
a memory storing at least one instruction; and
and the processor executes the instructions stored in the memory to realize the pressure trace-based authorization verification method.
In order to solve the above problem, the present invention further provides a computer-readable storage medium, which stores at least one instruction, where the at least one instruction is executed by a processor in an electronic device to implement the pressure trace-based authorization verification method described above.
The embodiment of the invention collects the fingerprint pressure trace of the authorized user and collects the fingerprint information and the pressure information of the user from the fingerprint pressure trace. The fingerprint information and the pressure information generated by pressing the user are compared with the fingerprint information and the pressure information of the authorized user to judge whether the user is the authorized user, so that the user identity is judged by utilizing the pressure information and the fingerprint information together, and the authorization of the user is safer and more reliable. Therefore, the authorization verification method, the authorization verification device, the electronic equipment and the computer readable storage medium based on the pressure track can safely and reliably carry out authorization verification on the user identity.
Drawings
Fig. 1 is a schematic flow chart of an authorization verification method based on a pressure trace according to an embodiment of the present invention;
FIG. 2 is a block diagram of an authorization verification device based on pressure trace according to an embodiment of the present invention
Fig. 3 is a schematic internal structural diagram of an electronic device implementing a pressure trace-based authorization verification method according to an embodiment of the present invention;
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides an authorization verification method based on a pressure track. Referring to fig. 1, a schematic flow chart of an authorization verification method based on a pressure trace according to an embodiment of the present invention is shown. The method may be performed by an apparatus, which may be implemented by software and/or hardware.
In this embodiment, the authorization verification method based on the pressure trace includes:
s1, fingerprint pressure tracks of authorized users are collected, fingerprint information of the users is collected from the fingerprint pressure tracks, and the fingerprint information is stored in a first data storage area of the mobile terminal equipment after being quantized.
In the embodiment of the invention, a user can obtain a fingerprint pressure track on the touch panel of the mobile terminal device through actions of pressing, rotating and the like of fingers.
For example, the user's finger marks out a complete clockwise circle, a complete counterclockwise circle, a counterclockwise upper semicircle, a clockwise upper semicircle, a counterclockwise lower semicircle, a clockwise lower semicircle, a counterclockwise left semicircle, a clockwise left semicircle, a counterclockwise right semicircle, a clockwise left semicircle, etc. on the touch panel.
In the embodiment of the invention, after the fingerprint pressure trace is acquired, the mobile terminal device separates the fingerprint information of the user from the fingerprint pressure trace and carries out quantization processing on the fingerprint information.
In detail, the fingerprint information quantization processing according to the embodiment of the present invention includes:
calculating a gray scale frequency field function of the fingerprint information;
calculating the sum H of tangential pixels and the sum V of normal pixels of the fingerprint information;
and storing the gray frequency field function and the sum H of the tangential pixels and the sum V of the normal pixels in a first storage area of the mobile terminal equipment.
The embodiment of the invention utilizes the following calculation formula to calculate the gray frequency field function of the fingerprint information:
wherein V (x) isThe total amount of vertical change of the gray scales of any two points on the fingerprint information; x1 and x2 are the lateral coordinate values of any two points on the fingerprint respectively; h (x) represents a gray function in the vertical direction; a ismIs the average amplitude of the fingerprint waveform; f is the gray frequency field function.
The gray frequency field function f can reflect the density degree of the fingerprint information distribution.
Further, the embodiment of the present invention calculates the sum H of the tangential pixels and the sum V of the normal pixels of the fingerprint information by using the following calculation formula:
wherein, the variation range is preset; (x)0，y0) And the coordinate value is the coordinate value of any point on the fingerprint information.
If the sum of the normal pixels is greater than the sum of the tangential pixels, the embodiment of the invention can determine that the point is on the fingerprint ridge line; if the sum of the normal pixels is smaller than or equal to the sum of the tangential pixels of the past, the embodiment of the invention can judge that the point is on the fingerprint valley line.
According to the embodiment of the invention, the fingerprint information is quantized by calculating the gray frequency field function f, the sum H of the tangential pixels and the sum V of the normal pixels.
Further, the embodiment of the present invention stores the fingerprint information after the quantization process in the first data area of the mobile terminal device.
And S2, separating the pressure information in the fingerprint pressure trace, and storing the pressure information in a second data storage area of the mobile terminal equipment after quantization processing.
In detail, the embodiment of the present invention may separate the pressure information in the fingerprint pressure trace by using a pressure sensor built in the mobile terminal device.
The pressure information comprises the magnitude of pressure applied to a touch panel of the mobile terminal device by a user, the variation trend of the pressure and/or the application direction of the pressure and the like when the fingerprint pressure trace is formed.
In one embodiment of the present invention, the pressure and the pressure variation trend are calculated by using the following calculation formulas:
Z＝f(x,y)
wherein Z is an instantaneous pressure function; l T (x, y) l is a pressure gradient field function; gx(x, y) is the partial derivative of the instantaneous pressure function Z at point (x, y) with respect to x
Gy(x, y) is the partial derivative of the instantaneous pressure function Z at point (x, y) with respect to y
The pressure gradient field function can represent the variation trend of the pressure, and the pressure value in the whole preset process can be calculated by combining the initial pressure value.
Further, the embodiment of the present invention calculates the applying direction of the pressure by using the following calculation formula:
where θ (x, y) is a pressure direction field function and w is an initial direction parameter.
Preferably, the mobile terminal device will quantize the pressure information, that is: and the pressure gradient field function and the pressure direction field function are stored in a second data storage area of the mobile terminal device.
S3, when the user presses the touch panel of the mobile terminal device in a certain pressing mode, analyzing to obtain fingerprint information and pressure information generated by the pressing, calling the fingerprint information in the first data storage area and the pressure information in the second data storage area, and comparing the fingerprint information and the pressure information generated by the pressing with the called fingerprint information and pressure information to verify whether the user is the authorized user.
In detail, the S3 includes:
collecting fingerprint pressure track information of a pressing action of a user on a touch panel of the terminal mobile equipment;
quantizing the fingerprint pressure track information to obtain quantized fingerprint information and quantized pressure information;
fingerprint information of the authorized user is called from the first data storage area, and pressure track information of the authorized user is called from the second data storage area;
comparing the fingerprint information of the authorized user and the pressure track information of the authorized user with the fingerprint information after quantization processing and the pressure track information after quantization processing;
if the pressure track information is consistent with the preset pressure track information, determining that the user is a legal user;
and if the pressure track information is inconsistent with the preset pressure track information, determining that the user is an illegal user.
Fig. 2 is a functional block diagram of the authorization verifying device based on pressure trace according to the present invention.
The authorization verification device 100 based on pressure trace according to the present invention can be installed in an electronic device. According to the implemented functions, the pressure trace-based authorization verification device 100 may include a fingerprint information processing module 101, a pressure information processing module 102, an information retrieval module 103, and an authorization judgment module 104. A module according to the present invention, which may also be referred to as a unit, refers to a series of computer program segments that can be executed by a processor of an electronic device and that can perform a fixed function, and that are stored in a memory of the electronic device.
In the present embodiment, the functions regarding the respective modules/units are as follows:
the fingerprint information processing module 101 is configured to collect a fingerprint pressure trace of an authorized user, collect fingerprint information of the user from the fingerprint pressure trace, quantize the fingerprint information, and store the quantized fingerprint information in a first data storage area of the mobile terminal device;
the pressure information processing module 102 is configured to separate pressure information in the fingerprint pressure trajectory, and store the pressure information in a second data storage area of the mobile terminal device after quantization processing;
the information retrieving module 103 is configured to, when a user presses a touch panel of the mobile terminal device in a certain pressing manner, analyze fingerprint information and pressure information generated by the pressing, and retrieve the fingerprint information in the first data storage area and the pressure information in the second data storage area;
the authorization judging module 104 is configured to verify whether the user is the authorized user by comparing the fingerprint information and the pressure information generated by pressing with the fingerprint information and the pressure information obtained by retrieving.
In detail, the modules of the authorization verification device based on pressure trace, when executed by the processor of the electronic device, may implement the following method steps:
the fingerprint information processing module 101 collects fingerprint pressure tracks of authorized users, collects fingerprint information of the users from the fingerprint pressure tracks, and stores the fingerprint information in a first data storage area of the mobile terminal equipment after the fingerprint information is quantized.
In the embodiment of the invention, a user can obtain a fingerprint pressure track on the touch panel of the mobile terminal device through actions of pressing, rotating and the like of fingers.
For example, the user's finger marks out a complete clockwise circle, a complete counterclockwise circle, a counterclockwise upper semicircle, a clockwise upper semicircle, a counterclockwise lower semicircle, a clockwise lower semicircle, a counterclockwise left semicircle, a clockwise left semicircle, a counterclockwise right semicircle, a clockwise left semicircle, etc. on the touch panel.
In the embodiment of the present invention, after the fingerprint pressure trace is acquired, the fingerprint information processing module 101 separates the fingerprint information of the user from the fingerprint pressure trace, and performs quantization processing on the fingerprint information.
In detail, the fingerprint information quantization processing according to the embodiment of the present invention includes:
calculating a gray scale frequency field function of the fingerprint information;
calculating the sum H of tangential pixels and the sum V of normal pixels of the fingerprint information;
and storing the gray frequency field function and the sum H of the tangential pixels and the sum V of the normal pixels in a first storage area of the mobile terminal equipment.
Wherein the fingerprint information processing module 101 calculates a gray scale frequency field function of the fingerprint information by using the following calculation formula:
wherein, v (x) is the total amount of vertical variation of the gray scales of any two points on the fingerprint information; x1 and x2 are the lateral coordinate values of any two points on the fingerprint respectively; h (x) represents a gray function in the vertical direction; a ismIs the average amplitude of the fingerprint waveform; f is the gray frequency field function.
The gray frequency field function f can reflect the density degree of the fingerprint information distribution.
Further, the fingerprint information processing module 101 calculates the sum H of the tangential pixels and the sum V of the normal pixels of the fingerprint information by using the following calculation formula:
wherein, the variation range is preset; (x)0,y0) And the coordinate value is the coordinate value of any point on the fingerprint information.
If the sum of the normal pixels is greater than the sum of the tangential pixels, the fingerprint information processing module 101 may determine that the point is on a fingerprint ridge line; if the sum of the normal pixels is less than or equal to the sum of the tangential pixels of the past, the fingerprint information processing module 101 may determine that the point is on the fingerprint valley line.
According to the embodiment of the invention, the fingerprint information is quantized by calculating the gray frequency field function f, the sum H of the tangential pixels and the sum V of the normal pixels.
Further, the fingerprint information processing module 101 stores the fingerprint information after quantization processing in the first data area of the mobile terminal device.
The pressure information processing module 102 separates the pressure information in the fingerprint pressure trace, and stores the pressure information in a second data storage area of the mobile terminal device after quantization processing.
In detail, the pressure information processing module 102 may separate the pressure information in the fingerprint pressure trace using a pressure sensor built in the mobile terminal device.
The pressure information comprises the magnitude of pressure applied to a touch panel of the mobile terminal device by a user, the variation trend of the pressure and/or the application direction of the pressure and the like when the fingerprint pressure trace is formed.
In this embodiment of the present invention, the pressure information processing module 102 calculates the magnitude of the pressure and the pressure variation trend by using the following calculation formulas:
Z＝f(x，y)
wherein Z is an instantaneous pressure function; l T (x, y) l is a pressure gradient field function; gx(x, y) is the partial derivative of the instantaneous pressure function Z at point (x, y) with respect to x
Gy(x, y) is the partial derivative of the instantaneous pressure function Z at point (x, y) with respect to y
The pressure gradient field function can represent the variation trend of the pressure, and the pressure value in the whole preset process can be calculated by combining the initial pressure value.
Further, the pressure information processing module 102 calculates the application direction of the pressure using the following calculation formula:
where θ (x, y) is a pressure direction field function and w is an initial direction parameter.
Preferably, the pressure information processing module 102 processes the quantized pressure information, namely: and the pressure gradient field function and the pressure direction field function are stored in a second data storage area of the mobile terminal device.
When a user presses the touch panel of the mobile terminal device in a certain pressing manner, the information retrieving module 103 analyzes and obtains the fingerprint information and the pressure information generated by the pressing, and retrieves the fingerprint information in the first data storage area and the pressure information in the second data storage area.
In detail, the information retrieving module 103 collects fingerprint pressure trace information of a pressing action of a user on the touch panel of the terminal mobile device, performs quantization processing on the fingerprint pressure trace information to obtain quantized fingerprint information and quantized pressure information, retrieves the fingerprint information of the authorized user from the first data storage area, and retrieves the pressure trace information of the authorized user from the second data storage area.
The authorization judging module 104 verifies whether the user is the authorized user by comparing the fingerprint information and the pressure information generated by the pressing with the fingerprint information and the pressure information obtained by the retrieving.
The authorization judging module 104 compares the fingerprint information of the authorized user and the pressure trace information of the authorized user with the fingerprint information after quantization processing and the pressure trace information after quantization processing. If the pressure track information is consistent with the preset pressure track information, the authorization judging module 104 determines that the user is a legal user; if the pressure trajectory information is inconsistent with the preset pressure trajectory information, the authorization judging module 104 determines that the user is an illegal user.
Fig. 3 is a schematic structural diagram of an electronic device implementing the authorization verification method based on pressure trace according to the present invention.
The electronic device 1 may comprise a processor 10, a memory 11 and a bus, and may further comprise a computer program, such as an authorization verification program 12 of a pressure trace, stored in the memory 11 and executable on the processor 10.
The memory 11 includes at least one type of readable storage medium, which includes flash memory, removable hard disk, multimedia card, card-type memory (e.g., SD or DX memory, etc.), magnetic memory, magnetic disk, optical disk, etc. The memory 11 may in some embodiments be an internal storage unit of the electronic device 1, such as a removable hard disk of the electronic device 1. The memory 11 may also be an external storage device of the electronic device 1 in other embodiments, such as a plug-in mobile hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the electronic device 1. Further, the memory 11 may also include both an internal storage unit and an external storage device of the electronic device 1. The memory 11 may be used not only to store application software installed in the electronic device 1 and various types of data, such as codes of an authorization verification program for pressure trace, etc., but also to temporarily store data that has been output or is to be output.
The processor 10 may be composed of an integrated circuit in some embodiments, for example, a single packaged integrated circuit, or may be composed of a plurality of integrated circuits packaged with the same or different functions, including one or more Central Processing Units (CPUs), microprocessors, digital Processing chips, graphics processors, and combinations of various control chips. The processor 10 is a Control Unit (Control Unit) of the electronic device, connects various components of the electronic device by using various interfaces and lines, and executes various functions and processes data of the electronic device 1 by running or executing programs or modules (for example, an authorization verification program for executing a pressure trace, etc.) stored in the memory 11 and calling data stored in the memory 11.
The bus may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. The bus is arranged to enable connection communication between the memory 11 and at least one processor 10 or the like.
Fig. 3 shows only an electronic device with components, and it will be understood by those skilled in the art that the structure shown in fig. 3 does not constitute a limitation of the electronic device 1, and may comprise fewer or more components than those shown, or some components may be combined, or a different arrangement of components.
For example, although not shown, the electronic device 1 may further include a power supply (such as a battery) for supplying power to each component, and preferably, the power supply may be logically connected to the at least one processor 10 through a power management device, so as to implement functions of charge management, discharge management, power consumption management, and the like through the power management device. The power supply may also include any component of one or more dc or ac power sources, recharging devices, power failure detection circuitry, power converters or inverters, power status indicators, and the like. The electronic device 1 may further include various sensors, a bluetooth module, a Wi-Fi module, and the like, which are not described herein again.
Further, the electronic device 1 may further include a network interface, and optionally, the network interface may include a wired interface and/or a wireless interface (such as a WI-FI interface, a bluetooth interface, etc.), which are generally used for establishing a communication connection between the electronic device 1 and other electronic devices.
Optionally, the electronic device 1 may further comprise a user interface, which may be a Display (Display), an input unit (such as a Keyboard), and optionally a standard wired interface, a wireless interface. Alternatively, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch device, or the like. The display, which may also be referred to as a display screen or display unit, is suitable for displaying information processed in the electronic device 1 and for displaying a visualized user interface, among other things.
It is to be understood that the described embodiments are for purposes of illustration only and that the scope of the appended claims is not limited to such structures.
The memory 11 in the electronic device 1 stores a pressure trace-based authorization method program 12 that is a combination of instructions that, when executed in the processor 10, enable:
collecting fingerprint pressure tracks of authorized users, collecting fingerprint information of the users from the fingerprint pressure tracks, and storing the fingerprint information in a first data storage area of mobile terminal equipment after the fingerprint information is quantized;
separating pressure information in the fingerprint pressure track, and storing the pressure information in a second data storage area of the mobile terminal equipment after quantization processing;
when a user presses the touch panel of the mobile terminal device in a certain pressing mode, fingerprint information and pressure information generated by pressing are obtained through analysis, the fingerprint information in the first data storage area and the pressure information in the second data storage area are called, and whether the user is the authorized user or not is verified through comparing the fingerprint information and the pressure information generated by pressing with the fingerprint information and the pressure information which are called out.
Specifically, the specific implementation method of the processor 10 for the instruction may refer to the description of the relevant steps in the embodiment corresponding to fig. 1, which is not described herein again.
Further, the integrated modules/units of the electronic device 1, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. The computer-readable medium may include: any entity or device capable of carrying said computer program code, recording medium, U-disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM).
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus, device and method can be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is only one logical functional division, and other divisions may be realized in practice.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional module.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof.
The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims shall not be construed as limiting the claim concerned.
Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. A plurality of units or means recited in the system claims may also be implemented by one unit or means in software or hardware. The terms second, etc. are used to denote names, but not any particular order.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A pressure trace-based authorization verification method, the method comprising:
collecting fingerprint pressure tracks of authorized users, collecting fingerprint information of the users from the fingerprint pressure tracks, and storing the fingerprint information in a first data storage area of mobile terminal equipment after the fingerprint information is quantized;
separating pressure information in the fingerprint pressure track, and storing the pressure information in a second data storage area of the mobile terminal equipment after quantization processing;
when a user presses the touch panel of the mobile terminal device in a certain pressing mode, fingerprint information and pressure information generated by pressing are obtained through analysis, the fingerprint information in the first data storage area and the pressure information in the second data storage area are called, and whether the user is the authorized user or not is verified through comparing the fingerprint information and the pressure information generated by pressing with the fingerprint information and the pressure information which are called out.
2. The pressure trace-based authorization verification method according to claim 1, wherein the quantizing the fingerprint information and storing the fingerprint information in a first data storage area of a mobile terminal device comprises:
calculating a gray scale frequency field function of the fingerprint information;
calculating the sum H of tangential pixels and the sum V of normal pixels of the fingerprint information;
and storing the gray frequency field function and the sum H of the tangential pixels and the sum V of the normal pixels in a first storage area of the mobile terminal equipment.
3. The method of claim 2, wherein the computing a gray-scale frequency field function of the fingerprint information comprises:
calculating a gray frequency field function f of the fingerprint information by using the following calculation formula:
wherein, v (x) is the total amount of vertical variation of the gray scales of any two points on the fingerprint information; x1 and x2 are the lateral coordinate values of any two points on the fingerprint respectively; h (x) represents a gray function in the vertical direction; a ismIs the average amplitude of the fingerprint waveform; f is the gray frequency field function.
4. The method of claim 2, wherein the computing the sum of tangential pixels H and the sum of normal pixels V of the fingerprint information comprises:
calculating the sum H of the tangential pixels and the sum V of the normal pixels of the fingerprint information by using the following calculation formula:
wherein, the variation range is preset; (x)0,y0) And the coordinate value is the coordinate value of any point on the fingerprint information.
5. The method for verifying authorization based on pressure trace according to any of claims 1 to 4, wherein the step of storing the pressure information in a second data storage area of the mobile terminal device after quantization processing comprises:
calculating a pressure gradient field function of the pressure information;
calculating a pressure direction field function of the pressure information;
and storing the gray frequency field function and the pressure gradient field function and the pressure direction field function in a second storage area of the mobile terminal equipment.
6. The pressure trace-based authorization verification method according to claim 5, wherein the calculating a pressure gradient field function of the pressure information comprises:
calculating the pressure gradient field function | T (x, y) | using the following calculation:
Z＝f(x,y)
wherein Z is an instantaneous pressure function; l T (x, y) l is a pressure gradient field function; gx(x, y) is the partial derivative of the instantaneous pressure function Z at point (x, y) with respect to x
Gy(x, y) is the partial derivative of the instantaneous pressure function Z at point (x, y) with respect to y
7. The pressure trace-based authorization verification method according to claim 5, wherein the calculating a pressure direction field function of the pressure information comprises:
calculating the pressure direction field function theta (x, y) by using the following calculation formula:
wherein, Vx(x,y)Is the pressure applied in the x direction; vy(x, y) is the pressure applied in the y direction; θ (x, y) is a pressure direction field function; w is an initial direction parameter; gx(x, y) is the partial derivative of the instantaneous pressure function Z at point (x, y) with respect to x
Gy(x, y) is the partial derivative of the instantaneous pressure function Z at point (x, y) with respect to y
8. An authorization verification device based on pressure traces, the device comprising:
the fingerprint information processing module is used for collecting fingerprint pressure tracks of authorized users, collecting fingerprint information of the users from the fingerprint pressure tracks, and storing the fingerprint information in a first data storage area of the mobile terminal equipment after the fingerprint information is quantized;
the pressure information processing module is used for separating pressure information in the fingerprint pressure track, and storing the pressure information in a second data storage area of the mobile terminal equipment after quantization processing;
the information calling module is used for analyzing and obtaining fingerprint information and pressure information generated by pressing when a user presses the touch panel of the mobile terminal equipment in a certain pressing mode, and calling the fingerprint information in the first data storage area and the pressure information in the second data storage area;
and the authorization judging module is used for verifying whether the user is the authorized user by comparing the fingerprint information and the pressure information generated by pressing with the fingerprint information and the pressure information obtained by adjusting.
9. An electronic device, characterized in that the electronic device comprises:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the pressure trace-based authorization verification method of any of claims 1 to 7.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out a method for pressure trace based authorization verification according to any one of claims 1 to 7.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112100596A (en) * | 2020-09-04 | 2020-12-18 | Tcl通讯（宁波）有限公司 | Fingerprint encryption starting method, system, storage medium and mobile terminal |
| CN112861649A (en) * | 2021-01-19 | 2021-05-28 | 平安科技（深圳）有限公司 | Fingerprint signature generation method and device, electronic equipment and computer storage medium |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112100596A (en) * | 2020-09-04 | 2020-12-18 | Tcl通讯（宁波）有限公司 | Fingerprint encryption starting method, system, storage medium and mobile terminal |
| CN112861649A (en) * | 2021-01-19 | 2021-05-28 | 平安科技（深圳）有限公司 | Fingerprint signature generation method and device, electronic equipment and computer storage medium |
| WO2022156088A1 (en) * | 2021-01-19 | 2022-07-28 | 平安科技（深圳）有限公司 | Fingerprint signature generation method and apparatus, and electronic device and computer storage medium |
| CN112861649B (en) * | 2021-01-19 | 2024-05-10 | 平安科技（深圳）有限公司 | Fingerprint signature generation method and device, electronic equipment and computer storage medium |
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