CN110717429A - Information processing method, electronic equipment and computer readable storage medium - Google Patents
Information processing method, electronic equipment and computer readable storage medium Download PDFInfo
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Abstract
The embodiment of the invention discloses an information processing method, which comprises the following steps: collecting a plurality of first fingerprint images aiming at a target identity mark; the plurality of first fingerprint images are images acquired by a camera positioned below a display screen when fingers of a target user contact a fingerprint acquisition area of the display screen, and the acquisition area of the camera corresponds to the fingerprint acquisition area; processing the plurality of first fingerprint images to obtain a plurality of second fingerprint images; generating a matching image based on the plurality of second fingerprint images; and the matching image is used as a matching template of the target identity. The embodiment of the invention also provides electronic equipment and a computer storage medium.
Description
Technical Field
The present invention relates to the field of computer technologies, and in particular, to an information processing method, an electronic device, and a computer-readable storage medium.
Background
With the rapid development of scientific technology, the application of fingerprint identification technology is more and more extensive, such as fingerprint identification unlocking, fingerprint card punching and the like. The fingerprint identification technology commonly used at present is mainly a capacitance fingerprint identification technology, but with the rapid development of a comprehensive screen technology, because a fixed fingerprint acquisition window is needed in the technical scheme of capacitance fingerprint identification, the screen occupation ratio is seriously influenced, and therefore, an optical fingerprint identification technology, namely a fingerprint identification technology under a screen, can also be called as an invisible fingerprint technology, is provided. When fingerprint verification is adopted as one implementation scheme of the optical fingerprint identification technology, the fingerprint information of a user is collected by adopting a camera technology and is compared with a plurality of fingerprint template pictures collected in advance, and when the fingerprint information of the collected user is matched with a plurality of fingerprint model pictures collected in advance, verification is passed when the comparison is successful.
However, in the implementation scheme of the optical fingerprint identification technology, the acquired fingerprint reference template of each user is a plurality of fingerprint pictures, and when the camera acquires the pictures, the edges of the acquired images are not clear due to the self-reason of the camera, and the image edge distortion exists, so that the success rate of comparison between the fingerprint images acquired during fingerprint identification of the users and the fingerprint reference template is low, and the miss probability is high.
Disclosure of Invention
In order to solve the above technical problems, embodiments of the present invention desirably provide an information processing method, an electronic device, and a computer-readable storage medium, which solve the problem that in the existing optical fingerprint identification technology, image edges of a plurality of fingerprint image templates are not clear, so that a target is easily missed during fingerprint identification, and reduce the probability of miss during fingerprint identification.
The technical scheme of the invention is realized as follows:
in a first aspect, an information processing method includes:
collecting a plurality of first fingerprint images aiming at a target identity mark; the plurality of first fingerprint images are images acquired by a camera positioned below a display screen when fingers of a target user contact a fingerprint acquisition area of the display screen, and the acquisition area of the camera corresponds to the fingerprint acquisition area;
processing the plurality of first fingerprint images to obtain a plurality of second fingerprint images;
generating a matching image based on the plurality of second fingerprint images; and the matching image is used as a matching template of the target identity.
Optionally, the processing the plurality of first fingerprint images to obtain a plurality of second fingerprint images includes:
and acquiring the image of the clear area of each first fingerprint image to obtain the plurality of second fingerprint images.
Optionally, the obtaining an image of a clear area of each first fingerprint image to obtain the plurality of second fingerprint images includes:
determining a center position of each first fingerprint image;
and taking the central position of each first fingerprint image as a reference position, and acquiring an image in a clear area matched with a preset shape in each first fingerprint image to obtain the plurality of second fingerprint images.
Optionally, the obtaining an image of a clear area of each first fingerprint image to obtain the plurality of second fingerprint images further includes:
dividing each first fingerprint image into a plurality of areas;
calculating an image parameter value of each area image of each first fingerprint image; the image parameter values are used for representing the image definition corresponding to each region;
and acquiring images corresponding to areas with image parameter values larger than or equal to preset parameter values in each first fingerprint image to obtain the plurality of second fingerprint images.
Optionally, after generating a matching image based on the plurality of second fingerprint images, the method further includes:
collecting a fingerprint image to be matched;
matching the fingerprint image to be matched with the matching image;
if the fingerprint image to be matched is matched with the matching image, processing the fingerprint image to be matched to obtain a third fingerprint image;
updating the target fingerprint image based on the third fingerprint image.
Optionally, if the fingerprint image to be matched is matched with the matching image, processing the fingerprint image to be matched to obtain a third fingerprint image, including:
if the fingerprint image to be matched is matched with the matching image, determining the central position of the fingerprint image to be matched;
taking the central position of the fingerprint image to be matched as a reference position, acquiring an image in a clear area matched with a preset shape in the fingerprint image to be matched, and obtaining a fourth fingerprint image;
if the image definition of the fourth fingerprint image is higher than that of the matched image, determining that the fourth fingerprint image is the third fingerprint image;
or if the fingerprint image to be matched is matched with the matching image, dividing the fingerprint image to be matched into a plurality of areas;
calculating an image parameter value of each area image of the fingerprint image to be matched; the image parameter values are used for representing the image definition corresponding to each region;
and acquiring an image corresponding to an area with an image parameter value greater than or equal to a preset parameter value in the fingerprint image to be matched to obtain the third fingerprint image.
In a second aspect, an electronic device, the electronic device comprising:
the display screen is provided with a display output area and a fingerprint acquisition area;
the camera is arranged below the display screen and used for collecting images;
a processor for performing the steps of:
collecting a plurality of first fingerprint images aiming at a target identity mark; the plurality of first fingerprint images are images acquired by a camera positioned below a display screen when fingers of a target user contact a fingerprint acquisition area of the display screen, and the acquisition area of the camera corresponds to the fingerprint acquisition area;
processing the plurality of first fingerprint images to obtain a plurality of second fingerprint images;
generating a matching image based on the plurality of second fingerprint images; and the matching image is used as a matching template of the target identity.
Optionally, the processor is further configured to perform the following steps:
and acquiring the image of the clear area of each first fingerprint image to obtain the plurality of second fingerprint images.
Optionally, the processor is further configured to perform the following steps:
dividing each first fingerprint image into a plurality of areas;
calculating an image parameter value of each area image of each first fingerprint image; the image parameter values are used for representing the image definition corresponding to each region;
and acquiring images corresponding to areas with image parameter values larger than or equal to preset parameter values in each first fingerprint image to obtain the plurality of second fingerprint images.
In a third aspect, a computer-readable storage medium has stored thereon an information processing program which, when executed by a processor, implements the steps of the information processing method as set forth in any one of the above.
The embodiment of the invention provides an information processing method, electronic equipment and a computer readable storage medium. Therefore, a matching image is generated based on a plurality of second fingerprint images obtained by processing a plurality of first fingerprint images, the problem that the image edges of a plurality of fingerprint image templates in the existing optical fingerprint identification technology are not clear, so that the target is easy to miss during fingerprint identification is solved, and the probability of the target miss during fingerprint identification is reduced.
Drawings
Fig. 1 is a schematic flowchart of an information processing method according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating another information processing method according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating another information processing method according to an embodiment of the present invention;
fig. 4 is a schematic view of an application scenario provided in the embodiment of the present invention;
fig. 5 is a schematic diagram of another application scenario provided in the embodiment of the present invention;
fig. 6 is a schematic diagram of another application scenario provided in the embodiment of the present invention;
fig. 7 is a schematic diagram of another application scenario provided in the embodiment of the present invention;
fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
An embodiment of the present invention provides an information processing method, which is applied to an electronic device and is shown in fig. 1, and the method includes the following steps:
Many first fingerprint images are the image that the fingerprint collection area that target user's finger contacted the display screen was gathered through the camera that is located the display screen below, and the collection area of camera corresponds with the fingerprint collection area.
In the embodiment of the invention, the electronic device can be a smart phone, a fingerprint card punch and other devices, when a user places a finger in a fingerprint acquisition area of the electronic device, the electronic device acquires a fingerprint picture of the finger of the user, and a method for acquiring the fingerprint picture of the finger of the user by the electronic device is acquired by a camera arranged under a display screen of the electronic device, namely the fingerprint acquisition area corresponds to an acquisition area of the camera. It should be noted that the plurality of first fingerprint images may be acquired by the user touching a finger on the fingerprint acquisition area of the display screen of the electronic device for multiple times, or may be acquired by the electronic device continuously when the user touches the finger on the fingerprint acquisition area of the display screen of the electronic device for one time, and the plurality of first fingerprint images include a plurality of finger fingerprint areas of the user. That is to say, a plurality of first fingerprint images may be obtained by storing the collected fingerprint image corresponding to the target identity during each fingerprint identification, or may be obtained by prompting the user corresponding to the target identity to collect different fingerprint areas of the same finger during the first fingerprint identification so as to be stored in the fingerprint library. The number of the plurality of first fingerprint images can be generally set to 15 to 22.
And 102, processing the plurality of first fingerprint images to obtain a plurality of second fingerprint images.
In the embodiment of the present invention, the processing on the first fingerprint image may be adjusting the sharpness of the first fingerprint image, that is, performing sharpness processing on an unclear portion, especially an unclear edge portion, of the first fingerprint image; or intercepting a clear part in each first fingerprint image to obtain a second fingerprint image corresponding to each first fingerprint image.
And 103, generating a matching image based on the plurality of second fingerprint images.
And the matching image is used as a matching template of the target identity.
In the embodiment of the invention, a plurality of second fingerprint images are combined to obtain a matched image. The combination mode comprises a splicing mode, a fusion mode or a splicing and fusion combination mode.
The embodiment of the invention provides an information processing method, which comprises the steps of acquiring a plurality of first fingerprint images aiming at a target identity, processing the plurality of first fingerprint images to obtain a plurality of second fingerprint images, and generating a matching image based on the plurality of second fingerprint images. Therefore, a matching image is generated based on a plurality of second fingerprint images obtained by processing a plurality of first fingerprint images, the problem that the image edges of a plurality of fingerprint image templates in the existing optical fingerprint identification technology are not clear, so that the target is easy to miss during fingerprint identification is solved, and the probability of the target miss during fingerprint identification is reduced. Furthermore, the fingerprint information in one matching image is complete, and when the fingerprints to be matched are matched, the matching degree is high because the fingerprint information of the fingerprints to be matched is basically in the matching image, so that the matching is easy to succeed; when the fingerprints are matched, the matching degree of the fingerprint image to be matched and one second fingerprint image is low, the matching degree of the fingerprint image to be matched and the other second fingerprint image is low, and the matching failure is caused.
Based on the foregoing embodiments, an embodiment of the present invention provides an information processing method, which is applied to an electronic device and shown in fig. 2, and includes the following steps:
step 201, collecting a plurality of first fingerprint images for a target identity.
Many first fingerprint images are the image that the fingerprint collection area that target user's finger contacted the display screen was gathered through the camera that is located the display screen below, and the collection area of camera corresponds with the fingerprint collection area.
In other embodiments of the present invention, step 201 can also be realized by the following steps a 1-a 3:
step a1, collecting a plurality of first fingerprint images to be matched.
In the embodiment of the invention, the first fingerprint image to be matched is acquired by the camera below the display screen.
Step a2, matching the first fingerprint images to be matched with reference fingerprint images in a preset fingerprint database.
In the embodiment of the invention, the fingerprint images of the plurality of first fingerprint images to be matched are subjected to image identification, namely, the plurality of first fingerprint images to be matched and the reference fingerprint image are subjected to matching processing.
Step a3, obtaining reference fingerprint images matched with the first fingerprint images to be matched from a preset fingerprint library to obtain the first fingerprint images.
In the embodiment of the present invention, the plurality of first fingerprint images may also be all pre-collected and stored reference fingerprint images corresponding to the target identity directly acquired from a preset fingerprint database.
Step 202, obtaining an image of a clear area of each first fingerprint image to obtain a plurality of second fingerprint images.
In the embodiment of the present invention, because the main existence of the situation that the edge of each first fingerprint image is unclear and the image of the central portion is clear, in order to obtain the image of a clear area, the image in the central area of each first fingerprint image may be directly obtained, and correspondingly, when the clear image in the central area of each first fingerprint image is obtained, the size of the central area of each first fingerprint image may be the same or different, and in this scenario, one first fingerprint image corresponds to one second fingerprint image. Another method for obtaining the clear area image of each first fingerprint image may also be to divide each first fingerprint image into a plurality of areas, then determine the definition of each area image, obtain the image of one area or a plurality of areas with higher definition, and obtain a plurality of second fingerprint images.
And step 203, generating a matching image based on the plurality of second fingerprint images.
And the matching image is used as a matching template of the target identity.
It should be noted that, for the descriptions of the same steps and the same contents in this embodiment as those in other embodiments, reference may be made to the descriptions in other embodiments, which are not described herein again.
The embodiment of the invention provides an information processing method, which comprises the steps of acquiring a plurality of first fingerprint images aiming at a target identity, processing the plurality of first fingerprint images to obtain a plurality of second fingerprint images, and generating a matching image based on the plurality of second fingerprint images. Therefore, a matching image is generated based on a plurality of second fingerprint images obtained by processing a plurality of first fingerprint images, the problem that the image edges of a plurality of fingerprint image templates in the existing optical fingerprint identification technology are not clear, so that the target is easy to miss during fingerprint identification is solved, and the probability of the target miss during fingerprint identification is reduced. Furthermore, the fingerprint information in one matching image is complete, and when the fingerprints to be matched are matched, the matching degree is high because the fingerprint information of the fingerprints to be matched is basically in the matching image, so that the matching is easy to succeed; when the fingerprints are matched, the matching degree of the fingerprint image to be matched and one second fingerprint image is low, the matching degree of the fingerprint image to be matched and the other second fingerprint image is low, and the matching failure is caused.
Based on the foregoing embodiments, an embodiment of the present invention provides an information processing method, which is applied to an electronic device and shown in fig. 3, and includes the following steps:
Many first fingerprint images are the image that the fingerprint collection area that target user's finger contacted the display screen was gathered through the camera that is located the display screen below, and the collection area of camera corresponds with the fingerprint collection area.
For example, a plurality of first fingerprint images may be as shown in fig. 4, where the first fingerprint images a1, B1, and C1 in fig. 4 are all fingerprint images of a user corresponding to a target identifier, and the edges of the first fingerprint images a1, B1, and C1 are all blurred and unclear, and are all fingerprint images of the same finger of the user corresponding to the target identifier as a reference fingerprint template stored in a preset fingerprint database.
In other embodiments of the present invention, step 302 may be implemented by steps 302 a-302 b as follows:
step 302a, determining the center position of each first fingerprint image.
And step 302b, taking the central position of each first fingerprint image as a reference position, and acquiring an image in a clear area matched with a preset shape in each first fingerprint image to obtain a plurality of second fingerprint images.
In the embodiment of the present invention, the preset shape may be any closed shape that can define an area, such as a circle, a rectangle, or a square. Illustratively, the preset shape is an image in a square area with the center positions (not shown in the figure) of the first fingerprint images a1, B1 and C1 in fig. 4 as reference positions, and the determination process is as shown in fig. 5, wherein the acquired second fingerprint images are corresponding images in a2, B2 and C2 areas. Typically, each first fingerprint image has a size of 6 × 6 mm, and the corresponding predetermined shape may be a rectangular shape of 3 × 3 mm.
In other embodiments of the present invention, step 302 can also be implemented by the following steps 302i to 302 k:
step 302i, divide each first fingerprint image into a plurality of regions.
In the embodiment of the present invention, the method of dividing each first fingerprint image into a plurality of regions may be to obtain X × Y (i.e., X rows and Y columns) regions from each first fingerprint image, where X and Y are positive integers greater than or equal to 2, and X and Y may be the same or different. Illustratively, the first fingerprint images a1, B1 and C1 are each divided into 3 x 3 regions as shown in fig. 6.
Step 302j, calculating an image parameter value of each area image of each first fingerprint image.
And the image parameter value is used for representing the image definition corresponding to each region.
In the embodiment of the present invention, the image parameter value may be a standard deviation of a gray value of an image, or an image sharpness evaluation function generated based on a Robert (Robert) edge detection operator, or the like.
Step 302k, obtaining images corresponding to areas where the image parameter values in each first fingerprint image are larger than or equal to the preset parameter values, and obtaining a plurality of second fingerprint images.
In the embodiment of the present invention, the preset parameter value may be adjusted according to an empirical value and according to the requirement of the user.
And step 303, generating a matching image based on the plurality of second fingerprint images.
And the matching image is used as a matching template of the target identity.
In the embodiment of the present invention, as shown in fig. 7, three second fingerprint images corresponding to the three regions a2, B2, and C2 shown in fig. 5 are spliced according to fingerprint texture features to obtain a matching image D.
And step 304, collecting a fingerprint image to be matched.
In the embodiment of the invention, the fingerprint image to be matched corresponds to the target identity.
And 305, matching the fingerprint image to be matched with the matching image.
And step 306, if the fingerprint image to be matched is matched with the matching image, processing the fingerprint image to be matched to obtain a third fingerprint image.
In the embodiment of the invention, if the fingerprint image to be matched is matched with the matching image, the fingerprint identification is successfully realized, the operation corresponding to the fingerprint identification is executed, and the fingerprint expectation to be matched is processed to obtain the third fingerprint image.
In the embodiment of the present invention, step 306 may be implemented by the following steps 306a to 306 c:
step 306a, if the fingerprint image to be matched is matched with the matching image, determining the central position of the fingerprint image to be matched.
And step 306b, taking the central position of the fingerprint image to be matched as a reference position, acquiring an image in a clear area matched with a preset shape in the fingerprint image to be matched, and obtaining a fourth fingerprint image.
And step 306c, if the image definition of the fourth fingerprint image is higher than that of the matched image, determining that the fourth fingerprint image is the third fingerprint image.
In the embodiment of the present invention, the image sharpness may be determined by using an image parameter value, where the image parameter value may be a standard deviation of a gray value of an image, or an image sharpness evaluation function generated based on a Robert (Robert) edge detection operator, or the like.
In other embodiments of the present invention, step 306 can also be implemented by the following steps:
and step 306i, if the fingerprint image to be matched is matched with the matching image, dividing the fingerprint image to be matched into a plurality of areas.
And step 306j, calculating an image parameter value of each area image of the fingerprint image to be matched.
And the image parameter value is used for representing the image definition corresponding to each region.
And step 306k, acquiring an image corresponding to an area with an image parameter value greater than or equal to a preset parameter value in the fingerprint image to be matched, and obtaining a third fingerprint image.
In the embodiment of the invention, the third fingerprint image comprises an image corresponding to an area in which at least one image parameter value in the fingerprint images to be matched is greater than or equal to a preset parameter value.
In the embodiment of the present invention, the third fingerprint image may be directly used to replace the image of the area corresponding to the third fingerprint image in the target fingerprint image.
It should be noted that, for the descriptions of the same steps and the same contents in this embodiment as those in other embodiments, reference may be made to the descriptions in other embodiments, which are not described herein again.
The embodiment of the invention provides an information processing method, which comprises the steps of acquiring a plurality of first fingerprint images aiming at a target identity, processing the plurality of first fingerprint images to obtain a plurality of second fingerprint images, and generating a matching image based on the plurality of second fingerprint images. Therefore, a matching image is generated based on a plurality of second fingerprint images obtained by processing a plurality of first fingerprint images, the problem that the image edges of a plurality of fingerprint image templates in the existing optical fingerprint identification technology are not clear, so that the target is easy to miss during fingerprint identification is solved, and the probability of the target miss during fingerprint identification is reduced. Furthermore, the fingerprint information in one matching image is complete, and when the fingerprints to be matched are matched, the matching degree is high because the fingerprint information of the fingerprints to be matched is basically in the matching image, so that the matching is easy to succeed; when the fingerprints are matched, the matching degree of the fingerprint image to be matched and one second fingerprint image is low, the matching degree of the fingerprint image to be matched and the other second fingerprint image is low, and the matching failure is caused.
Based on the foregoing embodiments, an embodiment of the present invention provides an electronic device, which may be applied to the information processing method provided in the embodiments corresponding to fig. 1 to 3, and as shown in fig. 8, the electronic device may include: display screen, camera and treater, wherein:
the display screen is provided with a display output area and a fingerprint acquisition area;
the camera is arranged below the display screen and used for collecting images;
the processor is used for executing the following steps:
collecting a plurality of first fingerprint images aiming at a target identity mark; the plurality of first fingerprint images are images acquired by a camera positioned below the display screen when fingers of a target user contact the fingerprint acquisition area of the display screen, and the acquisition area of the camera corresponds to the fingerprint acquisition area;
processing the plurality of first fingerprint images to obtain a plurality of second fingerprint images;
generating a matching image based on the plurality of second fingerprint images; and the matching image is used as a matching template of the target identity.
In other embodiments of the present invention, the processor is further configured to process the plurality of first fingerprint images to obtain a plurality of second fingerprint images, so as to implement the following steps:
and acquiring the image of the clear area of each first fingerprint image to obtain a plurality of second fingerprint images.
In other embodiments of the present invention, the processor is further configured to acquire an image of a clear area of each first fingerprint image, and obtain a plurality of second fingerprint images, so as to implement the following steps:
determining the central position of each first fingerprint image;
and taking the central position of each first fingerprint image as a reference position, and acquiring an image in a clear area matched with a preset shape in each first fingerprint image to obtain a plurality of second fingerprint images.
In other embodiments of the present invention, the processor is further configured to acquire an image of a clear area of each first fingerprint image, and obtain a plurality of second fingerprint images, so as to implement the following steps:
dividing each first fingerprint image into a plurality of areas;
calculating an image parameter value of each area image of each first fingerprint image; the image parameter values are used for representing the image definition corresponding to each region;
and acquiring images corresponding to the areas with the image parameter values larger than or equal to the preset parameter values in each first fingerprint image to obtain a plurality of second fingerprint images.
In other embodiments of the present invention, after the processor executes the step of generating a matching image based on the plurality of second fingerprint images, the processor is further configured to:
collecting a fingerprint image to be matched;
matching the fingerprint image to be matched with the matching image;
if the fingerprint image to be matched is matched with the matching image, processing the fingerprint image to be matched to obtain a third fingerprint image;
the target fingerprint image is updated based on the third fingerprint image.
In other embodiments of the present invention, the processor is further configured to, if the fingerprint image to be matched is matched with the matching image, process the fingerprint image to be matched to obtain a third fingerprint image, so as to implement the following steps:
if the fingerprint image to be matched is matched with the matching image, determining the central position of the fingerprint image to be matched;
taking the central position of the fingerprint image to be matched as a reference position, acquiring an image in a clear area matched with a preset shape in the fingerprint image to be matched, and obtaining a fourth fingerprint image;
if the image definition of the fourth fingerprint image is higher than that of the matched image, determining the fourth fingerprint image as a third fingerprint image;
or if the fingerprint image to be matched is matched with the matching image, dividing the fingerprint image to be matched into a plurality of areas;
calculating an image parameter value of each area image of the fingerprint image to be matched; the image parameter values are used for representing the image definition corresponding to each region;
and acquiring an image corresponding to an area with an image parameter value greater than or equal to a preset parameter value in the fingerprint image to be matched to obtain a third fingerprint image.
It should be noted that, a specific implementation process of the steps executed by the processor in this embodiment may refer to an implementation process in the information processing method provided in the embodiments corresponding to fig. 1 to 3, and details are not described here.
The embodiment of the invention provides electronic equipment, which is characterized in that a plurality of first fingerprint images aiming at a target identity are collected and processed to obtain a plurality of second fingerprint images, and a matching image is generated based on the plurality of second fingerprint images. Therefore, a matching image is generated based on a plurality of second fingerprint images obtained by processing a plurality of first fingerprint images, the problem that the image edges of a plurality of fingerprint image templates in the existing optical fingerprint identification technology are not clear, so that the target is easy to miss during fingerprint identification is solved, and the probability of the target miss during fingerprint identification is reduced. Furthermore, the fingerprint information in one matching image is complete, and when the fingerprints to be matched are matched, the matching degree is high because the fingerprint information of the fingerprints to be matched is basically in the matching image, so that the matching is easy to succeed; when the fingerprints are matched, the matching degree of the fingerprint image to be matched and one second fingerprint image is low, the matching degree of the fingerprint image to be matched and the other second fingerprint image is low, and the matching failure is caused.
Based on the foregoing embodiments, an embodiment of the present invention provides a computer-readable storage medium, which can be applied in the method provided in the corresponding embodiments of fig. 1 to 3, and the computer-readable storage medium stores one or more programs, which are executable by one or more processors to implement the following steps:
collecting a plurality of first fingerprint images aiming at a target identity mark; the plurality of first fingerprint images are images acquired by a camera positioned below the display screen when fingers of a target user contact the fingerprint acquisition area of the display screen, and the acquisition area of the camera corresponds to the fingerprint acquisition area;
processing the plurality of first fingerprint images to obtain a plurality of second fingerprint images;
generating a matching image based on the plurality of second fingerprint images; and the matching image is used as a matching template of the target identity.
In other embodiments of the present invention, the processor is further configured to process the plurality of first fingerprint images to obtain a plurality of second fingerprint images, so as to implement the following steps:
and acquiring the image of the clear area of each first fingerprint image to obtain a plurality of second fingerprint images.
In other embodiments of the present invention, the processor is further configured to acquire an image of a clear area of each first fingerprint image, and obtain a plurality of second fingerprint images, so as to implement the following steps:
determining the central position of each first fingerprint image;
and taking the central position of each first fingerprint image as a reference position, and acquiring an image in a clear area matched with a preset shape in each first fingerprint image to obtain a plurality of second fingerprint images.
In other embodiments of the present invention, the processor is further configured to acquire an image of a clear area of each first fingerprint image, and obtain a plurality of second fingerprint images, so as to implement the following steps:
dividing each first fingerprint image into a plurality of areas;
calculating an image parameter value of each area image of each first fingerprint image; the image parameter values are used for representing the image definition corresponding to each region;
and acquiring images corresponding to the areas with the image parameter values larger than or equal to the preset parameter values in each first fingerprint image to obtain a plurality of second fingerprint images.
In other embodiments of the present invention, after the processor executes the step of generating a matching image based on the plurality of second fingerprint images, the processor is further configured to:
collecting a fingerprint image to be matched;
matching the fingerprint image to be matched with the matching image;
if the fingerprint image to be matched is matched with the matching image, processing the fingerprint image to be matched to obtain a third fingerprint image;
the target fingerprint image is updated based on the third fingerprint image.
In other embodiments of the present invention, the processor is further configured to, if the fingerprint image to be matched is matched with the matching image, process the fingerprint image to be matched to obtain a third fingerprint image, so as to implement the following steps:
if the fingerprint image to be matched is matched with the matching image, determining the central position of the fingerprint image to be matched;
taking the central position of the fingerprint image to be matched as a reference position, acquiring an image in a clear area matched with a preset shape in the fingerprint image to be matched, and obtaining a fourth fingerprint image;
if the image definition of the fourth fingerprint image is higher than that of the matched image, determining the fourth fingerprint image as a third fingerprint image;
or if the fingerprint image to be matched is matched with the matching image, dividing the fingerprint image to be matched into a plurality of areas;
calculating an image parameter value of each area image of the fingerprint image to be matched; the image parameter values are used for representing the image definition corresponding to each region;
and acquiring an image corresponding to an area with an image parameter value greater than or equal to a preset parameter value in the fingerprint image to be matched to obtain a third fingerprint image.
It should be noted that, in the embodiment of the present invention, the one or more programs may be explained by steps of the one or more processors, and reference may be made to the method implementation processes provided in the embodiments corresponding to fig. 1 to 3, which are not described herein again.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (10)
1. An information processing method, the method comprising:
collecting a plurality of first fingerprint images aiming at a target identity mark; the plurality of first fingerprint images are images acquired by a camera positioned below a display screen when fingers of a target user contact a fingerprint acquisition area of the display screen, and the acquisition area of the camera corresponds to the fingerprint acquisition area;
processing the plurality of first fingerprint images to obtain a plurality of second fingerprint images;
generating a matching image based on the plurality of second fingerprint images; and the matching image is used as a matching template of the target identity.
2. The method of claim 1, wherein the processing the plurality of first fingerprint images to obtain a plurality of second fingerprint images comprises:
and acquiring the image of the clear area of each first fingerprint image to obtain the plurality of second fingerprint images.
3. The method of claim 2, wherein said obtaining an image of a clear area of each of said first fingerprint images resulting in said plurality of second fingerprint images comprises:
determining a center position of each first fingerprint image;
and taking the central position of each first fingerprint image as a reference position, and acquiring an image in a clear area matched with a preset shape in each first fingerprint image to obtain the plurality of second fingerprint images.
4. The method of claim 2, wherein said obtaining an image of a clear area of each of said first fingerprint images resulting in said plurality of second fingerprint images, further comprises:
dividing each first fingerprint image into a plurality of areas;
calculating an image parameter value of each area image of each first fingerprint image; the image parameter values are used for representing the image definition corresponding to each region;
and acquiring images corresponding to areas with image parameter values larger than or equal to preset parameter values in each first fingerprint image to obtain the plurality of second fingerprint images.
5. The method of claim 1, after generating a matching image based on the plurality of second fingerprint images, further comprising:
collecting a fingerprint image to be matched;
matching the fingerprint image to be matched with the matching image;
if the fingerprint image to be matched is matched with the matching image, processing the fingerprint image to be matched to obtain a third fingerprint image;
updating the target fingerprint image based on the third fingerprint image.
6. The method of claim 5, wherein if the fingerprint image to be matched is matched with the matching image, processing the fingerprint image to be matched to obtain a third fingerprint image comprises:
if the fingerprint image to be matched is matched with the matching image, determining the central position of the fingerprint image to be matched;
taking the central position of the fingerprint image to be matched as a reference position, acquiring an image in a clear area matched with a preset shape in the fingerprint image to be matched, and obtaining a fourth fingerprint image;
if the image definition of the fourth fingerprint image is higher than that of the matched image, determining that the fourth fingerprint image is the third fingerprint image;
or if the fingerprint image to be matched is matched with the matching image, dividing the fingerprint image to be matched into a plurality of areas;
calculating an image parameter value of each area image of the fingerprint image to be matched; the image parameter values are used for representing the image definition corresponding to each region;
and acquiring an image corresponding to an area with an image parameter value greater than or equal to a preset parameter value in the fingerprint image to be matched to obtain the third fingerprint image.
7. An electronic device, the electronic device comprising:
the display screen is provided with a display output area and a fingerprint acquisition area;
the camera is arranged below the display screen and used for collecting images;
a processor for performing the steps of:
collecting a plurality of first fingerprint images aiming at a target identity mark; the plurality of first fingerprint images are images acquired by a camera positioned below a display screen when fingers of a target user contact a fingerprint acquisition area of the display screen, and the acquisition area of the camera corresponds to the fingerprint acquisition area;
processing the plurality of first fingerprint images to obtain a plurality of second fingerprint images;
generating a matching image based on the plurality of second fingerprint images; and the matching image is used as a matching template of the target identity.
8. The electronic device of claim 7, the processor further configured to perform the steps of:
and acquiring the image of the clear area of each first fingerprint image to obtain the plurality of second fingerprint images.
9. The electronic device of claim 8, the processor further configured to perform the steps of:
dividing each first fingerprint image into a plurality of areas;
calculating an image parameter value of each area image of each first fingerprint image; the image parameter values are used for representing the image definition corresponding to each region;
and acquiring images corresponding to areas with image parameter values larger than or equal to preset parameter values in each first fingerprint image to obtain the plurality of second fingerprint images.
10. A computer-readable storage medium having stored thereon an information processing program which, when executed by a processor, realizes the steps of the information processing method according to any one of claims 1 to 6.
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