CN108520241B - Fingerprint acquisition method and device based on optical fingerprint technology and user terminal - Google Patents
Fingerprint acquisition method and device based on optical fingerprint technology and user terminal Download PDFInfo
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Abstract
The invention provides a fingerprint acquisition method, a fingerprint acquisition device and a user terminal based on an optical fingerprint technology, wherein the method comprises the following steps: receiving a touch signal of optical fingerprint acquisition of a fingerprint acquisition area; and arranging a mask layer for shielding a system UI (user interface) in a highlight mode in an area outside a fingerprint range in the fingerprint acquisition area so as to conveniently perform optical fingerprint acquisition on the fingerprint corresponding to the touch signal in the fingerprint range. The invention realizes that the system UI of the highlight mode is kept in the fingerprint range, and the system UIs of the highlight mode in other fingerprint acquisition areas are shielded by the shielding layer, thereby avoiding the problems of dazzling and visual fatigue caused by the high-brightness flicker or low-brightness flicker state when all areas are in the highlight mode during fingerprint acquisition, having good visual effect, being more beneficial to the body health of users and providing better user experience.
Description
Technical Field
The present invention relates to the field of fingerprint acquisition technologies, and in particular, to a fingerprint acquisition method and apparatus based on an optical fingerprint technology, and a user terminal.
Background
Fingerprint identification refers to authentication by comparing minutiae points of different fingerprints. Fingerprint identification technology relates to a plurality of subjects such as image processing, pattern recognition, computer vision, mathematical morphology, wavelet analysis and the like. The fingerprints of each person are different, namely the fingerprints are obviously different among the ten fingers of the same person, so that the fingerprints can be used for identity authentication.
At present, the mainstream fingerprint identification technology adopted in the market mainly comprises the following three types: capacitive pressing technology, optical fingerprint identification technology and ultrasonic fingerprint identification technology; the capacitance pressing technology is mature, but if the fingerprint has other interference, the accuracy is greatly reduced; the ultrasonic fingerprint identification technology needs to open holes on the equipment, so that the waterproof performance of the equipment is reduced; the optical fingerprint identification technology is more and more favored by research and development enterprises of more intelligent terminals due to the fast response speed and the accurate identification rate.
Present intelligent terminal who adopts optics fingerprint collection technique is when carrying out fingerprint identification, need set up intelligent terminal's system UI into dark tone or black, and all regions or fingerprint collection are regional whole to be set up to highlight mode, carry out fingerprint characteristic's collection and extraction through highlight mode, this kind of mode is because all keeps the state of highlight at fingerprint collection's overall process, make the user when carrying out fingerprint collection, especially night, the highlight can appear and lead to dazzling, visual fatigue, cause the condition of blinding in the twinkling of an eye to a certain extent even, visual effect is not good, user experience is poor.
Disclosure of Invention
In view of the above, the present invention provides an optical fingerprint collection method and apparatus based on optical fingerprint technology, and a user terminal to solve the deficiencies of the prior art.
In order to solve the above problems, the present invention provides a fingerprint acquisition method based on an optical fingerprint technology, comprising:
receiving a touch signal of optical fingerprint acquisition of a fingerprint acquisition area;
and arranging a mask layer for shielding a system UI (user interface) in a highlight mode in an area outside a fingerprint range in the fingerprint acquisition area so as to conveniently perform optical fingerprint acquisition on the fingerprint corresponding to the touch signal in the fingerprint range.
Preferably, the step of setting a mask layer for shielding the UI of the system in the highlight mode in an area outside the fingerprint range in the fingerprint collection area so as to optically fingerprint the fingerprint corresponding to the touch signal in the fingerprint range includes:
acquiring the brightness value of a current display screen;
calculating a gray value according to the brightness value of the current display screen;
and generating the mask layer based on the gray value, and displaying the mask layer in the area outside the fingerprint range in the fingerprint acquisition area.
Preferably, the "calculating a gray value according to the current display screen brightness value" includes:
acquiring a gray level parameter and a brightness level parameter of a display screen;
based on the calculation formula: and (4) calculating the gray value (the brightness value/brightness level parameter of the current display screen) multiplied by the gray level parameter.
Preferably, the "generating the mask layer based on the gradation value and displaying the mask layer in an area outside the fingerprint range in the fingerprint acquisition area" includes:
acquiring size parameters of the fingerprint acquisition area;
generating a mask layer based on the gray value according to the size parameter;
displaying the mask layer in an area outside the fingerprint range in the fingerprint acquisition area.
Preferably, after the "generating a mask layer based on the gray scale value according to the size parameter", the method further includes:
and performing transparentization or fuzzification processing on the mask layer according to the current display screen brightness value to generate the transparent or fuzzified mask layer based on the display screen brightness value.
Preferably, after the "displaying the mask layer in an area outside the fingerprint range in the fingerprint collection area", the method further includes:
acquiring a pressure value of fingerprint collection corresponding to the touch signal;
and adjusting the gray value of the mask layer based on the brightness value of the display screen according to the pressure-sensitive pressure value, and collecting fingerprint data so as to prompt the collection condition of the fingerprint through the change of the gray value of the mask layer in the optical fingerprint collection process.
Preferably, the "adjusting the gray value of the mask layer based on the brightness value of the display screen according to the pressure-sensitive pressure value, and collecting fingerprint data so as to prompt the collection condition of the fingerprint through the change of the gray value of the mask layer in the optical fingerprint collection process" includes:
when the pressure value reaches a preset pressure range, adjusting the gray value of the mask layer to a fingerprint acquisition gray range based on the brightness value of the display screen; and, begin to gather the fingerprint data;
and when the fingerprint data is acquired, adjusting the gray value of the mask layer to an acquisition ending gray range based on the brightness value of the display screen.
In addition, to solve the above problems, the present invention further provides a fingerprint acquisition device based on an optical fingerprint technology, including: the device comprises a receiving module and a setting module;
the receiving module is used for receiving a touch signal acquired by the optical fingerprint of the fingerprint acquisition area;
the setting module is used for setting a mask layer for shielding the system UI in a highlight mode in an area outside the fingerprint range in the fingerprint acquisition area so as to conveniently perform optical fingerprint acquisition on the fingerprint corresponding to the touch signal in the fingerprint range.
In addition, to solve the above problem, the present invention further provides a user terminal, which includes a memory and a processor, wherein the memory is used for storing a fingerprint collecting program based on an optical fingerprint technology, and the processor runs the fingerprint collecting program based on the optical fingerprint technology to make the computer device execute the fingerprint collecting method based on the optical fingerprint technology.
In addition, to solve the above problem, the present invention further provides a computer-readable storage medium, on which a fingerprint acquisition program based on an optical fingerprint technology is stored, and the fingerprint acquisition program based on the optical fingerprint technology is executed by a processor to implement the fingerprint acquisition method based on the optical fingerprint technology as described above.
The invention provides a fingerprint acquisition method and device based on an optical fingerprint technology and a user terminal. When optical fingerprint collection is carried out, the shielding layer for shielding the system UI in the highlight mode is arranged in the area outside the fingerprint range in the fingerprint collection area, so that when the optical fingerprint collection is carried out, the system UI in the highlight mode is kept in the fingerprint range through shielding of the shielding layer, the system UIs in the highlight mode in other fingerprint collection areas are shielded by the shielding layer, the problems of dazzling and visual fatigue caused by the fact that all areas are in the highlight mode and flicker in the highlight mode or flicker in the low-brightness mode during fingerprint collection are solved, the visual effect is good, the physical health of a user is benefited, and better user experience is provided.
Drawings
FIG. 1 is a schematic structural diagram of a hardware operating environment according to an embodiment of a fingerprint acquisition method based on an optical fingerprint technology of the present invention;
FIG. 2 is a flowchart illustrating a first exemplary embodiment of a fingerprint acquisition method based on optical fingerprint technology according to the present invention;
FIG. 3 is a flowchart illustrating a second embodiment of a fingerprint acquisition method based on optical fingerprint technology according to the present invention;
FIG. 4 is a flowchart illustrating a fingerprint acquisition method based on optical fingerprint technology according to a third embodiment of the present invention;
FIG. 5 is a flowchart illustrating a fourth exemplary embodiment of a fingerprint acquisition method based on optical fingerprint technology according to the present invention;
FIG. 6 is a flowchart illustrating a fifth exemplary embodiment of a fingerprint capturing method according to the present invention;
FIG. 7 is a flowchart illustrating a sixth exemplary embodiment of a fingerprint capturing method according to the present invention;
FIG. 8 is a flowchart illustrating a refinement procedure of step S2360 in a sixth embodiment of a fingerprint acquisition method based on optical fingerprint technology according to the present invention;
fig. 9 is a schematic diagram of functional modules of a fingerprint acquisition device based on an optical fingerprint technology according to 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
Reference will now be made in detail to the embodiments of the present invention, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a hardware operating environment of a terminal according to an embodiment of the present invention.
The terminal in the embodiment of the invention can be a PC capable of optical fingerprint acquisition, and can also be a mobile terminal device with an optical fingerprint acquisition function, such as a smart phone, a tablet computer, an electronic book reader, an MP3 player, an MP4 player, a portable computer and the like.
As shown in fig. 1, the terminal may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may comprise a display screen, an input unit such as a keyboard, a remote control, and the optional user interface 1003 may also comprise a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high speed RAM memory or a stable memory such as a disk memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Optionally, the terminal may further include a camera, a Radio Frequency (RF) circuit, a sensor, an audio circuit, a WiFi module, and the like. In addition, the mobile terminal may further be configured with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which are not described herein again.
Those skilled in the art will appreciate that the terminal shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a kind of computer-readable storage medium, may include therein an operating system, a data interface control program, a network connection program, and a fingerprint acquisition program based on an optical fingerprint technique.
The invention provides a fingerprint acquisition method and device based on an optical fingerprint technology and a user terminal. According to the method, the system UI of the highlight mode is kept in the fingerprint range, the system UIs of the highlight mode in other fingerprint acquisition areas are shielded by the shielding layer, the problem that all areas are in the highlight mode and flicker in high brightness or flicker in low brightness during fingerprint acquisition, and accordingly dazzling and visual fatigue are caused is solved, the visual effect is good, the physical health of a user is benefited, and better user experience is provided.
Example 1:
referring to fig. 2, a first embodiment of the present invention provides a fingerprint acquisition method based on an optical fingerprint technology, including:
step S1000, receiving a touch signal acquired by an optical fingerprint of a fingerprint acquisition area;
the fingerprint collection method based on the optical fingerprint technology provided by the invention can be applied to fingerprint collection equipment adopting the optical fingerprint identification technology, for example, the fingerprint collection equipment can comprise but is not limited to an interactive interface of a mobile phone, a tablet personal computer, an attendance machine, a gate authentication device and the like, and in the embodiment, the fingerprint collection method can be applied to a smart phone or a tablet personal computer with a touch screen and adopting the optical fingerprint identification technology. In addition, the terminal can be a peripheral which can realize the optical fingerprint acquisition function through different external terminals.
The fingerprint collection area is a designated optical fingerprint collection range appearing in an interactive interface (system UI) screen under an instruction for fingerprint collection. When fingerprint authentication and collection are performed, the fingerprint authentication and collection can include, but are not limited to, the lower half of the mobile phone screen, or the entire mobile phone screen is a fingerprint collection area, or a fingerprint collection area contained in a special shape in the mobile phone screen.
As described above, in the fingerprint collection area, the user touches the collection area with a finger, and when the area is touched, the screen is triggered, and a touch signal is generated. For example, when payment is made, a fingerprint of the user needs to be collected, and when the user touches a finger to the lower half of the screen, a touch signal is generated.
Step S2000, setting a mask layer for shielding the UI of the system in the highlight mode in an area outside the fingerprint range in the fingerprint collection area, so as to perform optical fingerprint collection on the fingerprint corresponding to the touch signal in the fingerprint range.
The fingerprint range is the minimum range that contains the fingerprint characteristics of the user's finger. May be a range containing the fingerprint characteristics of a single finger or may be a range containing the fingerprint characteristics of a plurality of fingers.
The range matched with the fingerprint shape of the user finger in the fingerprint acquisition area can be a preset fixed range or a range of the system for self-adapting to the currently acquired human fingerprint.
In the above, it should be understood that the UI is an abbreviation of User Interface. The user operation interface comprises a mobile APP, a webpage, an intelligent wearable device and the like. UI design mainly refers to the style and the aesthetic degree of an interface. In use, the overall design of human-computer interaction, operation logic and attractive interface of software is another gateway which is also important. The good UI not only enables the software to become individual and tasteful, but also enables the operation of the software to become comfortable, simple and free, and fully embodies the positioning and characteristics of the software. In this embodiment, the UI is a graphical user interface.
Above-mentioned, the mask layer is in the system at terminal, when carrying out fingerprint collection, is used for sheltering from the shielding layer of the highlight mode outside the fingerprint scope of fingerprint collection, and its size can be for the size that is equivalent with the fingerprint collection region, just can shelter from all areas of highlight outside the fingerprint scope completely promptly, also can be for being greater than the fingerprint collection region, perhaps be less than the fingerprint collection region.
In this embodiment, when the system UI of highlight mode outside the fingerprint range is shielded by the mask layer, the system UI of the fingerprint collection area still maintains the highlight mode, which is used to shield the unnecessary or redundant highlight area, thereby avoiding the eye discomfort of the user caused by highlight flicker.
The method that this embodiment provided is when carrying out optics fingerprint collection, the region outside the fingerprint scope in the fingerprint collection region, set up the mask layer that shelters from the system UI of highlight mode, thereby when carrying out optics fingerprint collection, through the sheltering from of mask layer, realize keeping the system UI of highlight mode at the fingerprint scope, and the system UI of the highlight mode of other fingerprint collection regions is sheltered from by the mask layer, all regions are the state that highlight mode appears the scintillation or the scintillation of low luminance when having avoided fingerprint collection, and then the dazzling and the tired problem of vision that leads to, visual effect is good, be of value to user's healthy more, better user experience is provided.
Example 2:
referring to fig. 3, a second embodiment of the present invention provides a fingerprint acquisition method based on an optical fingerprint technology, based on the first embodiment shown in fig. 2, where in the step S2000, "a mask layer for shielding the system UI in the highlight mode is disposed in an area outside a fingerprint range in the fingerprint acquisition area, so as to perform optical fingerprint acquisition on a fingerprint corresponding to the touch signal in the fingerprint range" includes:
step S2100, obtaining the brightness value of the current display screen;
the brightness value of the display screen is referred to as screen brightness, and refers to the physical quantity of the light intensity on the surface of the luminescent object, which is called brightness (luminance), and is physically expressed by L, and the unit is candela per square meter or lumen. The brightness is an important index for measuring the luminous intensity of the display screen, and for the display panel, the high brightness also means higher anti-interference capability to the working environment of the display panel.
Step S2200, calculating a gray value according to the brightness value of the current display screen;
it should be noted that the gray-scale digital image is an image with only one sampling color per pixel. Such images are typically displayed in gray scale from darkest black to brightest white, although in theory this sampling could be of different shades of any color and even different colors at different brightnesses. The gray image is different from the black and white image, the black and white image only has two colors of black and white in the computer image field, and the gray image has a plurality of levels of color depth between black and white. However, outside the field of digital images, a "black-and-white image" also means a "grayscale image", and for example, a photograph of grayscale is generally called a "black-and-white photograph".
As described above, in this embodiment, the gray scale value is calculated according to the current display screen brightness of the display screen, so as to ensure that the range or data of the gray scale value is adjusted based on the current display screen brightness.
Step S2300, generating the mask layer based on the gray value, and displaying the mask layer in an area outside the fingerprint range in the fingerprint collection area.
According to the method, the mask layer based on the gray value is generated through the gray value, so that the brightness or the gray value of the mask layer is close to the brightness level of the UI of the system before the optical fingerprint is collected, the shielding of the mask layer is achieved, the light intensity in the visual range of a user is guaranteed to be basically unchanged, and the influence of the optical fingerprint collection on the vision of the user is reduced.
Example 3:
referring to fig. 4, a third embodiment of the present invention provides a fingerprint acquisition method based on an optical fingerprint technology, and based on the second embodiment shown in fig. 3, the step S2200 "calculating a gray value according to the current display screen brightness value" includes:
step S2210, obtaining a gray scale parameter and a brightness level parameter of the display screen;
in the above description, the gradation, that is, the gradation level or the gray level, refers to the brightness level of the luminance. The halftone (Half-tone) is mainly used for transmitting pictures, and has three modes of 16 levels, 32 levels and 64 levels respectively, and the pixel of the file is processed into 16 levels, 32 levels and 64 levels by adopting a matrix processing mode, so that the transmitted pictures are clearer. The gray scale parameter is a gray scale parameter.
It should be noted that, the brightness level parameter is a screen brightness level, which is generally 256 levels and corresponds to a hardware configuration. For example, a stage supporting 8 bits is 256, and a stage supporting 16 bits is 65535.
Step S2220, based on the calculation formula: and (4) calculating the gray value (the brightness value/brightness level parameter of the current display screen) multiplied by the gray level parameter.
Setting the gray value as H, the current display screen brightness value as L, and the brightness level parameter as LmaxThe gray scale parameter is HmaxTherefore, the above formula is:
for example, if the current brightness is 64, the maximum level is 256, and the gray scale of the display screen is 256 levels, the gray scale and the brightness are in a 1:1 relationship, and the brightness of the display screen is that the gray scale of the mask is 64;
as another example, assuming that the current brightness is 64, the maximum level is 256, the display screen gray scale level is 1024, the gray scale and brightness are in a 1:4 relationship, the mask gray scale is 64 × 4, and so on.
The gray value is calculated through the formula, so that the mask layer which is close to the current screen brightness after the highlight mode system UI is shielded is obtained.
Example 4:
referring to fig. 5, a fourth embodiment of the present invention provides a fingerprint acquisition method based on an optical fingerprint technology, and based on the second embodiment shown in fig. 3, the step S2300 "of generating the mask layer based on the gray-level value, and displaying the mask layer in an area outside the fingerprint range in the fingerprint acquisition area" includes:
step S2310, acquiring a size parameter of the fingerprint acquisition area;
the size parameter is the area size occupied by the fingerprint acquisition area on the screen, and the parameter may be the pixel size or distance data, such as data of micrometers, millimeters, centimeters, and the like. In addition, other parameters that identify the size of the fingerprint collection area may be used, such as the area, the spatial coordinates of the length, width, height, or major line segments, the coordinates of the location on the edge, and so on.
Step S2320, generating a mask layer based on the gray value according to the size parameter;
as described above, in this embodiment, the mask layer needs to completely cover the fingerprint collection area to block the highlight of the fingerprint collection area in the fingerprint collection process, so as to reduce the influence of the highlight flicker of the screen on the eyesight of the user. Therefore, the size or dimension of the mask layer needs to be matched with the size or dimension of the fingerprint acquisition area, and after the size or dimension parameter of the fingerprint acquisition area is obtained, the mask layer which is matched with the size parameter, can shield the fingerprint acquisition area and is based on the gray value is drawn or generated.
In step S2330, the mask layer is displayed in a region outside the fingerprint region in the fingerprint collection region.
In this way, after the mask layer is generated, the mask layer can be displayed in the corresponding area, so as to block the highlight area of the fingerprint collection area except the fingerprint range.
Example 5:
referring to fig. 6, a fifth embodiment of the present invention provides a fingerprint acquisition method based on an optical fingerprint technique, based on the fourth embodiment shown in fig. 5, after the step S2320 "generating a mask layer based on the gray-level value according to the size parameter", the method further includes:
step S2340, performing a transparentization or fuzzification process on the mask layer according to the current display screen brightness value, and generating a transparent or fuzzified mask layer based on the display screen brightness value.
In the above, when the mask layer is displaying, the gray scale of the mask layer itself can be adjusted according to the brightness value of the current display screen, and the mask layer is made to be transparent or blurred, so that the transparent or blurred mask layer is generated. Furthermore, in the process of optically collecting fingerprints, a user can still normally see the system UI under the mask layer through the transparent or fuzzy mask layer, and the normal system UI can be designed according to the design requirements of the system, so that the color tone of the whole UI does not need to be reduced to match the optical fingerprint collection technology.
Example 6:
referring to fig. 7 and 8, a fifth embodiment of the present invention provides a fingerprint acquisition method based on optical fingerprint technology, based on the fourth embodiment shown in fig. 5, wherein the step S2330 "after displaying the mask layer in the area outside the fingerprint acquisition area", further includes:
step S2350, acquiring a pressure value of fingerprint collection corresponding to the touch signal;
as described above, it should be understood that in the pressure-sensitive touch (pressure touch technology), force sensors are disposed at four corners of a screen, and can sense a pressing force, so as to perform feedback of actions in three dimensions, i.e., a light point, a light press, and a heavy press. Therefore, touch interaction can be extended from the 'time' dimension of long pressing to the 'strength' dimension of heavy pressing, and a brand new space is developed for man-machine interaction. The pressure Touch technology is originally issued by Apple Watch, the Force Touch equipment can sense the strength of light pressure and heavy pressure and call out different corresponding functions, and the level and the use experience of the user in using mobile phone Touch interaction are enriched.
In this embodiment, the carrier for fingerprint acquisition and identification is a touch screen with a pressure-sensitive touch technology, and a pressure-sensitive touch screen with a forcetouch technology is adopted. And acquiring a pressure-sensitive touch pressure value when the user carries out fingerprint acquisition through the force touch pressure-sensitive touch screen.
In the above, when the optical fingerprint collection is started to be performed on the fingerprint in the fingerprint range, the pressure value of the pressure sense pressed by the current finger is further acquired.
Step S2360, adjusting the gray level value of the mask layer based on the display screen brightness value according to the pressure-sensitive pressure value, and collecting fingerprint data so as to prompt the collection condition of the fingerprint through the change of the gray level value of the mask layer in the optical fingerprint collection process.
Wherein, step S2360 "adjust the gray level of the mask layer based on the display screen brightness value according to the pressure-sensitive pressure value, and collect fingerprint data, so that in the optical fingerprint collection process, the collection condition of the fingerprint is prompted by the change of the gray level of the mask layer" includes:
step S2361, when the pressure value reaches a preset pressure range, adjusting the gray value of the mask layer to a fingerprint collection gray range based on the brightness value of the display screen; and, begin to gather the fingerprint data;
step S2362, when the fingerprint data collection is finished, the gray value of the mask layer is adjusted to the collection finishing gray range based on the display screen brightness value.
The preset pressure range is a preset adjustable value and is a judgment standard for normally collecting the optical fingerprint, and when the detected pressure value reaches the preset pressure range, the gray value of the mask layer is adjusted to the fingerprint collection gray range based on the brightness value of the display screen. For example, the preset pressure range may be the pressure value of 5000-. The adjustment of the gray value can be that the gray value is increased, namely the color is deepened, or the gray value is reduced, namely the color is lightened, so that the user is prompted that the fingerprint data is being or can start to be collected.
When the fingerprint data acquisition is finished, namely in the fingerprint acquisition process, after the complete fingerprint data is acquired, the gray value of the mask layer can be adjusted according to the brightness value of the display screen until the gray range is finished.
It should be noted that the end-of-collection gray scale range and the fingerprint collection gray scale range are different gray scale ranges in this embodiment, and the gray scale values are different, that is, in the process of optical fingerprint collection by a user, the condition of fingerprint collection can be known through the change of the gray scale value of the mask layer, for example, when the user touches a fingerprint collection area, a pressure-sensitive pressure value is obtained, when the pressure-sensitive pressure value reaches the fingerprint collection gray scale range, that is, when the fingerprint collection reaches the collection standard, the mask layer changes color to dark gray, so that fingerprint collection is started, when the fingerprint data collection is finished, the system is represented that the system has already obtained complete fingerprint data, at this time, the mask layer changes color to light gray, the representation system finishes collecting the fingerprint data, and the user can remove a finger.
Through the change of the color or the gray value of the shielding layer, the optical fingerprint collection condition of a user is prompted, the start of fingerprint collection and the end of fingerprint collection are prompted, the fingerprint collection efficiency is improved, meanwhile, the user can learn whether the fingerprint collection is correct or not in the fingerprint collection process, the force meets the requirements of standards or not, and the user experience is greatly improved.
In addition, referring to fig. 9, the present invention further provides a fingerprint acquisition apparatus based on an optical fingerprint technology, including: a receiving module 10 and a setting module 20;
the receiving module 10 is configured to receive a touch signal acquired by an optical fingerprint of a fingerprint acquisition area;
the setting module 20 is configured to set a mask layer for shielding the UI of the system in the highlight mode in an area outside the fingerprint range in the fingerprint collection area, so as to perform optical fingerprint collection on the fingerprint corresponding to the touch signal in the fingerprint range.
In addition, the present invention also provides a user terminal, which includes a memory and a processor, wherein the memory is used for storing a fingerprint collection program based on an optical fingerprint technology, and the processor runs the fingerprint collection program based on the optical fingerprint technology to make the computer device execute the fingerprint collection method based on the optical fingerprint technology.
In addition, the present invention also provides a computer readable storage medium, on which a fingerprint collection program based on an optical fingerprint technology is stored, and when the fingerprint collection program based on the optical fingerprint technology is executed by a processor, the fingerprint collection method based on the optical fingerprint technology is implemented.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A fingerprint acquisition method based on an optical fingerprint technology is characterized by comprising the following steps:
receiving a touch signal of optical fingerprint acquisition of a fingerprint acquisition area;
acquiring the brightness value of a current display screen;
calculating a gray value according to the brightness value of the current display screen;
generating a mask layer based on the gray value, and displaying the mask layer in an area outside a fingerprint range in the fingerprint acquisition area;
acquiring a pressure value of fingerprint collection corresponding to the touch signal;
when the pressure value reaches a preset pressure range, adjusting the gray value of the mask layer to a fingerprint acquisition gray range based on the brightness value of the display screen; and, begin to gather the fingerprint data;
and when the fingerprint data acquisition is finished, adjusting the gray value of the mask layer to an acquisition finishing gray range based on the brightness value of the display screen, so that the acquisition condition of the fingerprint is prompted through the change of the gray value of the mask layer in the optical fingerprint acquisition process.
2. The optical fingerprint technology-based fingerprint acquisition method according to claim 1, wherein the "calculating a gray value according to the current display screen brightness value" comprises:
acquiring a gray level parameter and a brightness level parameter of a display screen;
based on the calculation formula: and (4) calculating the gray value (the brightness value/brightness level parameter of the current display screen) multiplied by the gray level parameter.
3. The method of claim 1, wherein the generating the mask layer based on the gray-level values and displaying the mask layer in an area outside the fingerprint region in the fingerprint collection area comprises:
acquiring size parameters of the fingerprint acquisition area;
generating a mask layer based on the gray value according to the size parameter;
displaying the mask layer in an area outside the fingerprint range in the fingerprint acquisition area.
4. The method as claimed in claim 3, wherein after generating the mask layer based on the gray-level value according to the size parameter, the method further comprises:
and performing transparentization or fuzzification processing on the mask layer according to the current display screen brightness value to generate the transparent or fuzzified mask layer based on the display screen brightness value.
5. A fingerprint collection device based on optical fingerprint technology, comprising: the device comprises a receiving module, a setting module and a prompting module;
the receiving module is used for receiving a touch signal acquired by the optical fingerprint of the fingerprint acquisition area;
the setting module is used for acquiring the brightness value of the current display screen and calculating the gray value according to the brightness value of the current display screen; generating a mask layer based on the gray value, and displaying the mask layer in an area outside a fingerprint range in the fingerprint acquisition area;
the prompting module is used for acquiring a pressure value of fingerprint collection corresponding to the touch signal; when the pressure value reaches a preset pressure range, adjusting the gray value of the mask layer to a fingerprint acquisition gray range based on the brightness value of the display screen; and, begin to gather the fingerprint data; and when the fingerprint data acquisition is finished, adjusting the gray value of the mask layer to an acquisition finishing gray range based on the brightness value of the display screen, so that the acquisition condition of the fingerprint is prompted through the change of the gray value of the mask layer in the optical fingerprint acquisition process.
6. A user terminal, characterized by comprising a memory for storing a fingerprint acquisition program based on optical fingerprint technology and a processor for executing the fingerprint acquisition program based on optical fingerprint technology to make the user terminal execute the fingerprint acquisition method based on optical fingerprint technology according to any one of claims 1-4.
7. A computer-readable storage medium, wherein a fingerprint acquisition program based on optical fingerprint technology is stored on the computer-readable storage medium, and when executed by a processor, the fingerprint acquisition program based on optical fingerprint technology implements the fingerprint acquisition method based on optical fingerprint technology according to any one of claims 1 to 4.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810322236.5A CN108520241B (en) | 2018-04-11 | 2018-04-11 | Fingerprint acquisition method and device based on optical fingerprint technology and user terminal |
| PCT/CN2019/082301 WO2019196909A1 (en) | 2018-04-11 | 2019-04-11 | Fingerprint collection method and apparatus based on optical fingerprint technology, and user terminal |
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| CN201810322236.5A CN108520241B (en) | 2018-04-11 | 2018-04-11 | Fingerprint acquisition method and device based on optical fingerprint technology and user terminal |
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| CN108520241B (en) * | 2018-04-11 | 2020-10-23 | 深圳市万普拉斯科技有限公司 | Fingerprint acquisition method and device based on optical fingerprint technology and user terminal |
| CN109344589A (en) * | 2018-09-12 | 2019-02-15 | 北京小米移动软件有限公司 | Unlocked by fingerprint method, apparatus and storage medium |
| CN110895667B (en) * | 2018-09-12 | 2023-04-07 | 上海耕岩智能科技有限公司 | Optical image processing method and storage medium |
| CN109343811B (en) * | 2018-09-30 | 2022-06-24 | 维沃移动通信有限公司 | Display adjustment method and terminal equipment |
| CN109858320B (en) * | 2018-11-27 | 2021-11-02 | Oppo广东移动通信有限公司 | Fingerprint input method and related equipment |
| CN109753336B (en) * | 2019-01-15 | 2022-05-17 | Oppo广东移动通信有限公司 | Method for switching screen locking interface to desktop, electronic device and computer readable storage medium |
| EP3910544A4 (en) | 2019-02-01 | 2022-03-30 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Electronic device |
| CN110020622B (en) * | 2019-04-02 | 2021-04-20 | Oppo广东移动通信有限公司 | Fingerprint identification method and related product |
| CN113257189A (en) * | 2020-02-10 | 2021-08-13 | 敦泰电子股份有限公司 | Unlocking method of optical under-screen fingerprint mobile device |
| CN113297880A (en) * | 2020-02-24 | 2021-08-24 | Oppo广东移动通信有限公司 | Fingerprint acquisition method, fingerprint acquisition device, fingerprint acquisition terminal and storage medium |
| CN114520866B (en) * | 2020-11-19 | 2024-06-07 | 深圳市万普拉斯科技有限公司 | Image foreground processing method, electronic equipment and storage medium |
| TWI771829B (en) * | 2020-12-16 | 2022-07-21 | 大陸商北京集創北方科技股份有限公司 | Optical fingerprint recognition method for improving recognition rate under strong light and touch display and information processing device using the same |
| CN113191198B (en) * | 2021-04-02 | 2024-04-26 | 北京小米移动软件有限公司 | Fingerprint identification method, fingerprint identification device, mobile terminal and storage medium |
| CN117075791A (en) * | 2023-09-29 | 2023-11-17 | 荣耀终端有限公司 | Fingerprint light spot display method, terminal equipment and storage medium |
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