CN109960911A - Fingerprint verification method and electronic device - Google Patents

Abstract

The present invention provides a kind of fingerprint authentication method and electronic device.The fingerprint authentication method includes: to execute fingerprint register operation by fingerprint sensor and store registered finger print information to storage circuit；In fingerprint verification operation, finger print information to be verified is sensed by the fingerprint sensor；And if the similitude between the finger print information to be verified and the registered finger print information meets preset condition, execute the fingerprint verification operation by corresponding preset function, and according to having verified that finger print information updates the registered finger print information.

Description

Fingerprint verification method and electronic device

technical field

The invention relates to a fingerprint verification method and an electronic device.

Background technique

With the increasing popularity of fingerprint identification technology, electronic devices such as notebook computers or smart phones generally use fingerprint identification technology to verify the owner, so as to manage the use rights of the electronic device. Generally speaking, after enabling the fingerprint verification mechanism, the user needs to store his own fingerprint information in the electronic device in the fingerprint registration procedure, as a basis for subsequent fingerprint verification.

However, as the sensing area of the fingerprint sensor becomes smaller and smaller, it is difficult for the user to register complete fingerprint information in the fingerprint registration procedure. In addition, once the fingerprint registration procedure is left, the user cannot modify and/or expand the registered fingerprint. That is, if the user wants to update his fingerprint information, the user can only restart the fingerprint registration procedure. It can be seen that the current fingerprint verification mechanism is obviously inflexible in use.

SUMMARY OF THE INVENTION

The invention provides a fingerprint verification method and electronic device, which can update the registered fingerprint information according to the verified fingerprint information through the fingerprint verification operation after completing the fingerprint registration operation, thereby improving the operation convenience of the fingerprint verification mechanism.

An embodiment of the present invention provides a fingerprint verification method for an electronic device having a fingerprint sensor and a storage circuit. The fingerprint verification method includes: performing a fingerprint registration operation through the fingerprint sensor and storing the registered fingerprint information in a the storage circuit; in the fingerprint verification operation, the fingerprint information to be verified is sensed by the fingerprint sensor; and if the similarity between the fingerprint information to be verified and the registered fingerprint information meets a preset condition, executing the The verification of the fingerprint verification operation passes the corresponding preset function, and the registered fingerprint information is updated according to the verified fingerprint information.

Another embodiment of the present invention provides an electronic device including a fingerprint sensor, a memory circuit and a processor. The processor is coupled to the fingerprint sensor and the memory circuit. The processor is used for performing a fingerprint registration operation through the fingerprint sensor and storing the registered fingerprint information in the storage circuit. In the fingerprint verification operation, the processor is further configured to sense the fingerprint information to be verified through the fingerprint sensor. If the similarity between the fingerprint information to be verified and the registered fingerprint information meets a preset condition, the processor is further configured to perform the verification of the fingerprint verification operation to pass the corresponding preset function and according to the verified operation The fingerprint information updates the registered fingerprint information.

Based on the above, a fingerprint registration operation can be performed by the fingerprint sensor, and the registered fingerprint information can be stored to the storage circuit. Thereafter, in the fingerprint verification operation, the fingerprint information to be verified can be sensed by the fingerprint sensor. If the similarity between the sensed fingerprint information to be verified and the stored registered fingerprint information meets a preset condition, a preset function corresponding to the verification of the fingerprint verification operation can be executed, and the registered fingerprint information It can be updated according to the verified fingerprint information, thereby improving the operational convenience of the fingerprint verification mechanism.

In order to make the above-mentioned features and advantages of the present invention more obvious and easy to understand, the following embodiments are given and described in detail with the accompanying drawings as follows.

Description of drawings

FIG. 1 is a schematic diagram of an electronic device according to an exemplary embodiment of the present invention;

FIG. 2 is a schematic appearance diagram of an electronic device according to an embodiment of the present invention;

3 is a schematic diagram of sliding fingerprint sensing according to an embodiment of the present invention;

4 to 6 are schematic diagrams of fingerprint image comparison according to an embodiment of the present invention;

7 is a schematic diagram of updating registered fingerprint information according to an embodiment of the present invention;

FIG. 8 is a flowchart of a fingerprint verification method according to an embodiment of the present invention.

Description of reference numerals

10, 20: electronic device;

11, 21: Fingerprint sensor;

12: storage circuit;

13: processor;

22: touchpad;

301: finger;

31: sensing element;

32: groove;

41, 51, 61, 71 to 77: fingerprint images;

401, 402, 501, 502: feature points;

601: Image overlapping area;

S801 to S806: steps.

Detailed ways

FIG. 1 is a schematic diagram of an electronic device according to an exemplary embodiment of the present invention. Referring to FIG. 1 , the electronic device 10 includes a fingerprint sensor 11 , a storage circuit 12 and a processor 13 . The fingerprint sensor 11 can sense fingerprint information of the user's finger. For example, the fingerprint sensor 11 may be a capacitive fingerprint sensor or an optical fingerprint sensor, but the present invention does not limit the type of the fingerprint sensor 11 . The fingerprint sensing mechanism of the fingerprint sensor 11 may use sliding sensing or pressing sensing. If the fingerprint sensing mechanism of the fingerprint sensor 11 uses sliding sensing, the user can slide his finger on the sensing surface of the fingerprint sensor 11, and the fingerprint sensor 11 can sense the user's fingerprint information through the sensing surface. . Alternatively, if the fingerprint sensing mechanism of the fingerprint sensor 11 uses push-type sensing, the user can place a finger on the sensing surface of the fingerprint sensor 11, and the fingerprint sensor 11 can sense the user's fingerprint through the sensing surface information. For the convenience of description, in the following embodiments, the fingerprint sensor 11 using sliding sensing is used for description.

The storage circuit 12 is used to store information. For example, the storage circuit 12 may include various types of non-volatile storage circuits such as conventional hard disks, solid-state disks, and/or flash memory. Therefore, the information stored in the nonvolatile memory circuit is not lost when the power supply of the electronic device 10 is turned off. For example, the storage circuit 12 can store information such as registered fingerprint information and program codes required for the operation of the electronic device 10 . In addition, the storage circuit 12 may also include a non-volatile storage circuit such as random access memory to store temporary information generated during the operation of the electronic device 10 .

The processor 13 is coupled to the fingerprint sensor 11 and the storage circuit 12 . The processor 13 may be a central processing unit (Central Processing Unit, CPU), or other programmable general-purpose or special-purpose microprocessors, digital signal processors (Digital Signal Processor, DSP), programmable controllers , Application Specific Integrated Circuits (ASIC), Programmable Logic Device (PLD) or other similar devices or combinations of these devices.

In one embodiment, the processor 13 is only responsible for operations related to the fingerprint verification mechanism, such as fingerprint sensing, fingerprint registration, fingerprint verification, and the like. In one embodiment, the processor 13 may also be responsible for the overall operation of the electronic device 10 or other operations. In one embodiment, the electronic device 10 further includes an input/output (I/O) device and a power supply device. For example, the input/output device may include a mouse, a keyboard, a touch pad, a display, a touch screen, a microphone, a speaker, or a network interface card, etc., and the type of the input/output device is not limited thereto. In addition, the power supply device may include various power supplies or batteries.

In the following embodiments, a notebook computer is used as an example of the electronic device 10 for description. However, in another embodiment, the electronic device 10 may also be various electronic devices such as a smart phone, a tablet computer, a digital photo frame, a desktop computer or an e-book reader, which is not limited in the present invention.

FIG. 2 is a schematic diagram of the appearance of an electronic device according to an embodiment of the present invention. FIG. 3 is a schematic diagram of sliding fingerprint sensing according to an embodiment of the present invention. Referring to FIG. 2 and FIG. 3 , the electronic device 20 is provided with a fingerprint sensor 21 and a touch panel 22 . In this embodiment, the fingerprint sensor 21 is disposed on the touch panel 22 . However, in another embodiment, the fingerprint sensor 21 may also be disposed on other surface positions of the electronic device 20, which is not limited in the present invention. The sensing element 31 may be disposed in the groove 32 of the fingerprint sensor 21 . The user's finger 301 may contact the upper surface of the sensing element 31 and slide back and forth on the upper surface of the sensing element 31 . The sensing element 31 can sense the fingerprint information of the sliding finger 301 .

Returning to FIG. 1 , the processor 13 may perform fingerprint registration operations and fingerprint verification operations. The fingerprint registration operation is used to initially register the user's fingerprint information. For example, in the fingerprint registration operation, the processor 13 may sense the fingerprint information of a specific user through the fingerprint sensor 11 and pair the sensed fingerprint information with the specific user. Then, the processor 13 may store the sensed fingerprint information and the related pairing information to the storage circuit 12 as the registered fingerprint information. In one embodiment, the registered fingerprint information stored through the fingerprint registration operation is also referred to as initial registered fingerprint information. It should be noted that, in the fingerprint registration operation, the processor 13 can also sense the fingerprint information of a specific user multiple times through the fingerprint sensor 11 and combine the sensed fingerprint information to generate the initial registered fingerprint information. After the fingerprint registration operation is completed, the registered fingerprint information can be used in the fingerprint verification operation to verify the identity of the user currently operating the electronic device 10 .

In the fingerprint verification operation, the processor 13 may sense fingerprint information (also referred to as to-be-verified fingerprint information) through the fingerprint sensor 11 . The processor 13 may compare the fingerprint information to be verified with the registered fingerprint information stored in the storage circuit 12 and determine whether the similarity between the fingerprint information to be verified and the registered fingerprint information meets a preset condition. If the similarity between the fingerprint information to be verified and the registered fingerprint information meets the preset condition, the processor 13 may determine that the sensed fingerprint information passes the verification and execute the preset function corresponding to the verification pass of the fingerprint verification operation. In one embodiment, the verified fingerprint information is also referred to as verified fingerprint information. However, if the similarity between the fingerprint information to be verified and the registered fingerprint information does not meet the preset condition, the processor 13 may determine that the sensed fingerprint information fails the verification and does not perform the preset function.

In one embodiment, the preset function may include various application functions that are allowed to be executed only through authentication, such as logging in to a specific application, online transaction or device unlocking, and so on. In other words, fingerprint authentication can be used as an alternative to traditional password authentication. In one embodiment, the fingerprint verification operation may be used in conjunction with the password verification operation. For example, if the fingerprint verification mechanism and the password verification mechanism are enabled at the same time, the user needs to pass the fingerprint verification operation and the password verification operation at the same time to control the processor 13 to perform the preset function. In another embodiment, the fingerprint verification operation can also be used with various verification mechanisms such as face verification and/or iris verification, which is not limited in the present invention.

In one embodiment, the processor 13 may perform fingerprint image comparison according to the fingerprint information to be verified and the registered fingerprint information to determine whether the similarity between the fingerprint information to be verified and the registered fingerprint information meets a preset condition. For example, the processor 13 may compare the fingerprint information to be verified with the registered fingerprint information to obtain image overlay information. Then, the processor 13 can determine whether the similarity between the fingerprint information to be verified and the registered fingerprint information meets the preset condition according to the image overlapping information. The image overlapping information can reflect the matching degree between the fingerprint information to be verified and the registered fingerprint information. If the image overlap information reflects that the matching degree between the fingerprint information to be verified and the registered fingerprint information is higher than the preset degree, the processor 13 may determine that the similarity between the fingerprint information to be verified and the registered fingerprint information meets the preset condition. Conversely, if the image overlap information reflects that the degree of agreement between the fingerprint information to be verified and the registered fingerprint information is not higher than the preset degree, the processor 13 may determine that the similarity between the fingerprint information to be verified and the registered fingerprint information does not match. preset conditions.

4 to 6 are schematic diagrams of fingerprint image comparison according to an embodiment of the present invention. Referring to FIG. 4 to FIG. 6 , the processor 13 can convert the fingerprint information to be verified and the registered fingerprint information into the fingerprint image to be verified 41 and the registered fingerprint image 51 , respectively. After the fingerprint image comparison is performed, the processor 13 can obtain the image overlapping area 601 between the fingerprint image 41 to be verified and the registered fingerprint image 51 . In other words, the fingerprint information to be verified corresponds to the fingerprint image to be verified 41 , the registered fingerprint information corresponds to the registered fingerprint image 51 , and the image overlap information corresponds to the image overlapping area 601 between the fingerprint image to be verified and the registered fingerprint image.

In one embodiment, the processor 13 may compare the fingerprint image 41 to be verified with the registered fingerprint image 51 . According to the comparison result, the processor 13 may respectively set at least two feature points on the fingerprint image 41 to be verified and the registered fingerprint image 51 . Taking the feature points 401 and 402 on the fingerprint image 41 to be verified and the feature points 501 and 502 on the registered fingerprint image 51 as examples, after the fingerprint image 41 to be verified is rotated 90 degrees to the right, the feature points 401 are within the coverage range. The image content of the feature point 501 is substantially the same as the image content within the coverage range of the feature point 501 , and the image content within the coverage range of the feature point 402 is substantially the same as the image content within the coverage range of the feature point 502 . The processor 13 can determine the feature points 401 , 402 , 501 and 502 by rotating at least one of the fingerprint image 41 to be verified and at least one of the registered fingerprint images 51 by a specific angle and comparing the images.

After determining the feature points 401 , 402 , 501 and 502 , the processor 13 can at least partially overlap the fingerprint image 41 to be verified and the registered fingerprint image 51 according to the feature points 401 , 402 , 501 and 502 to obtain an image overlapping area 601 . For example, after rotating the fingerprint image 41 to be verified by 90 degrees to the right, the processor 13 may locate the feature point 401 to the feature point 501 and the feature point 402 to the feature point 502, thereby linking the fingerprint image 41 to be verified with the registered The fingerprint image 51 is superimposed into a superimposed image 61 . Processor 13 may identify image overlap regions 601 within superimposed image 61 . In the image overlapping area 601 , the image content of the fingerprint image 41 to be verified is substantially the same as the image content of the registered fingerprint image 51 . It should be noted that, the substantially same mentioned in the foregoing embodiments may refer to the exact same or roughly the same considering the error caused by noise. In an embodiment, the processor 13 may also use other image comparison techniques to determine the image overlapping area 601, which is not limited in the present invention.

In one embodiment, the processor 13 can determine whether the area of the image overlapping area 601 exceeds a predetermined area. If the area of the image overlapping area 601 exceeds the preset area, it means that the matching degree between the fingerprint information to be verified and the registered fingerprint information is higher than the preset degree, so the processor 13 can determine the difference between the fingerprint information to be verified and the registered fingerprint information. The similarity meets the preset conditions. On the contrary, if the area of the image overlapping area 601 does not exceed the preset area, it means that the matching degree between the fingerprint information to be verified and the registered fingerprint information is not higher than the preset degree, so the processor 13 can determine the fingerprint information to be verified and the registered fingerprint information. The similarity between fingerprint information does not meet the preset conditions.

In one embodiment, the area of the image overlapping area 601 may be measured in terms of the number of pixels (pixels) or the number of other image units. In addition, although the embodiment of FIG. 6 uses a continuous area as an example of the image overlapping area 601, in another embodiment, the image overlapping area 601 may also be a discontinuous area (eg, including several areas separated from each other) . Or, in another embodiment, the processor 13 can also judge whether the ratio of the area of the image overlapping area 601 to the total area of the registered fingerprint image 51 exceeds a predetermined ratio and other factors related to the image overlapping area 601 , etc. Whether the similarity between the fingerprint information to be verified and the registered fingerprint information meets the preset condition is not limited in the present invention.

In one embodiment, if it is determined that the similarity between the fingerprint information to be verified and the registered fingerprint information meets a preset condition, the processor 13 will also update the registered fingerprint information according to the verified fingerprint information (that is, the verified fingerprint information). . For example, the processor 13 may filter out a part of the fingerprint information (also referred to as the first part of fingerprint information) of the verified fingerprint information and combine the registered fingerprint information with another part of the fingerprint information (also referred to as the second part of the fingerprint information) in the verified fingerprint information information).

Taking FIG. 6 as an example, after determining that the similarity between the fingerprint information 41 to be verified and the registered fingerprint information 51 meets the preset condition, the processor 13 can filter out the fingerprints corresponding to the image overlapping area 601 in the verified fingerprint image 41. image (i.e. the fingerprint image in the verified fingerprint image 41 contained within the image overlap area 601) and the registered fingerprint image 51 with the remaining fingerprint images in the verified fingerprint image 41 (i.e. in the verified fingerprint image 41 that are not filtered out) the fingerprint image) to form a fingerprint image similar to the superimposed image 61. In addition, in the operation of combining fingerprint images, the processor 13 may also perform operations such as edge smoothing or image filling, which is not limited in the present invention. The fingerprint information corresponding to the fingerprint image generated by the aforementioned image combination (ie, the updated registered fingerprint information) may be stored in the storage circuit 12 to replace the registered fingerprint image 51 and used for the next fingerprint verification operation.

FIG. 7 is a schematic diagram of updating registered fingerprint information according to an embodiment of the present invention. Referring to FIG. 7, it is assumed that the registered fingerprint information corresponding to the fingerprint image 71 is registered and stored in the fingerprint registration operation. The fingerprint image 71 is also referred to as an initial fingerprint image. After a certain fingerprint verification operation using the fingerprint image 71 , the registered fingerprint information corresponding to the fingerprint image 71 may be updated to the registered fingerprint information corresponding to the fingerprint image 73 . The area of the fingerprint image 73 is larger than that of the fingerprint image 71 . Compared to the fingerprint image 71 , the fingerprint image 73 also includes the fingerprint image 72 . For example, the fingerprint image 73 may be obtained by combining the fingerprint image 71 and the fingerprint image 72 . The registered fingerprint information corresponding to the fingerprint image 73 can be used for the next fingerprint verification operation.

After the next fingerprint verification operation using the fingerprint image 73 , the registered fingerprint information corresponding to the fingerprint image 73 may be updated to the registered fingerprint information corresponding to the fingerprint image 75 . The area of the fingerprint image 75 is larger than that of the fingerprint image 73 . Fingerprint image 75 also includes fingerprint image 74 in comparison to fingerprint image 73 . For example, fingerprint image 75 may be obtained by combining fingerprint image 73 and fingerprint image 74 . The registered fingerprint information corresponding to the fingerprint image 75 can be used for the next fingerprint verification operation. After the next fingerprint verification operation using the fingerprint image 75 , the registered fingerprint information corresponding to the fingerprint image 75 may be updated to the registered fingerprint information corresponding to the fingerprint image 77 . The area of the fingerprint image 77 is larger than that of the fingerprint image 75 . Compared to fingerprint image 75 , fingerprint image 77 also includes fingerprint image 76 . For example, fingerprint image 77 may be obtained by combining fingerprint image 75 with fingerprint image 76 .

In other words, after the fingerprint verification operation is successfully completed at least once, there is no need to re-execute the fingerprint registration operation, and the fingerprint information reflecting the fingerprints of different positions on the same finger of the same user can also be gradually collected and combined into a new registered Fingerprint information to improve the efficiency of fingerprint verification in the future.

FIG. 8 is a flowchart of a fingerprint verification method according to an embodiment of the present invention. Referring to FIG. 8, in step S801, a fingerprint registration operation is performed by a fingerprint sensor and the registered fingerprint information is stored in a storage circuit. In step S802, in the fingerprint verification operation, the fingerprint information to be verified is sensed by the fingerprint sensor. In step S803, it is determined whether the similarity between the fingerprint information to be verified and the registered fingerprint information meets a preset condition. If the similarity between the fingerprint information to be verified and the registered fingerprint information does not meet the preset condition, in step S804, it is determined that the verification fails and the preset function corresponding to the verification pass of the fingerprint verification operation is not performed. However, if the similarity between the fingerprint information to be verified and the registered fingerprint information meets the preset condition, in step S805, the verification of the fingerprint verification operation is performed to pass the corresponding preset function. In step S806, the registered fingerprint information is updated according to the verified fingerprint information.

Each step in FIG. 8 has been described in detail above, and will not be repeated here. It is worth noting that each step in FIG. 8 can be implemented as a plurality of program codes or circuits, which is not limited by the present invention. In addition, the method of FIG. 8 can be used in conjunction with the above exemplary embodiments, or can be used alone, which is not limited in the present invention.

To sum up, after completing the fingerprint registration operation, an (initial) registered fingerprint information can be stored. Thereafter, when the user operates the electronic device, there is no need to perform the fingerprint registration operation again, and the registered fingerprint information can also be automatically updated in the background as the user performs the fingerprint verification operation again and again. In addition, by setting the update operation of the registered fingerprint information to be performed along with the fingerprint verification operation, it is also possible to reduce the area of the fingerprint that needs to be detected in the fingerprint registration operation and/or reduce the number of times the fingerprint information is detected in the fingerprint registration operation, thereby speeding up the fingerprinting process. Execution of the registration operation. Especially, for a fingerprint sensor with a small sensing surface, since it is difficult for the user's finger fingerprint to be input quickly and completely during the fingerprint registration operation, the present invention shortens the time for performing the fingerprint registration operation and improves the subsequent fingerprint verification operation. The effect of the verification success rate can be more obvious.

Although the present invention has been disclosed above with examples, it is not intended to limit the present invention. Any person skilled in the art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection shall be subject to those defined in the claims.

Claims (10)

1. a kind of fingerprint authentication method, for the electronic device with fingerprint sensor and storage circuit, which is characterized in that described Fingerprint authentication method includes:

Fingerprint register operation is executed by the fingerprint sensor and stores registered finger print information to the storage circuit；

In fingerprint verification operation, finger print information to be verified is sensed by the fingerprint sensor；And

If the similitude between the finger print information to be verified and the registered finger print information meets preset condition, described in execution Fingerprint verification operation is verified corresponding preset function, and according to having verified that finger print information updates the registered fingerprint Information.

2. fingerprint authentication method according to claim 1, further includes:

The finger print information to be verified and the registered finger print information are compared to obtain image overlay information；And

Described in being judged between the finger print information to be verified and the registered finger print information according to described image overlay information Whether similitude meets the preset condition.

3. fingerprint authentication method according to claim 2, wherein the finger print information to be verified corresponds to fingerprint to be verified Image, the registered finger print information correspond to registered fingerprint image, and described image overlay information corresponds to described to be verified Image overlapping region between fingerprint image and the registered fingerprint image, and compare the finger print information to be verified with it is described Registered finger print information includes: the step of described image overlay information to obtain

Compare the fingerprint image to be verified and the registered fingerprint image；

At least two spies are set separately in the fingerprint image to be verified and the registered fingerprint image according to comparison result Sign point；And

The fingerprint image to be verified or the registered fingerprint image are rotated and overlap based at least two characteristic points, with Obtain described image overlapping region.

4. fingerprint authentication method according to claim 3, wherein having verified that finger print information updates described infused according to Volume finger print information the step of include:

Filter out the fingerprint image for having verified that and corresponding to described image overlapping region in fingerprint image；And

In conjunction with the registered fingerprint image and the remaining fingerprint image having verified that in fingerprint image.

5. fingerprint authentication method according to claim 1, wherein having verified that finger print information updates described infused according to Volume finger print information the step of include:

Filter out the first part's finger print information for having verified that finger print information；And

In conjunction with the registered finger print information and the second part finger print information having verified that in finger print information.

6. a kind of electronic device characterized by comprising

Fingerprint sensor；

Storage circuit；And

Processor couples the fingerprint sensor and the storage circuit,

Wherein the processor is to execute fingerprint register operation by the fingerprint sensor and deposit registered finger print information It stores up to the storage circuit,

In fingerprint verification operation, the processor also senses finger print information to be verified to pass through the fingerprint sensor, and And

If the similitude between the finger print information to be verified and the registered finger print information meets preset condition, the processing Device is also verified corresponding preset function and according to having verified that finger print information more to execute the fingerprint verification operation The new registered finger print information.

7. electronic device according to claim 6, wherein the processor is also to compare the finger print information to be verified With the registered finger print information to obtain image overlay information, and

The processor is also to judge the finger print information to be verified and the registered finger according to described image overlay information Whether the similitude between line information meets the preset condition.

8. electronic device according to claim 7, wherein the finger print information to be verified corresponds to fingerprint image to be verified, The registered finger print information corresponds to registered fingerprint image, and described image overlay information corresponds to the fingerprint image to be verified As and the image overlapping region between the registered fingerprint image, and the processor compare the finger print information to be verified with The registered finger print information includes: with the operation for obtaining described image overlay information

Compare the fingerprint image to be verified and the registered fingerprint image；

At least two spies are set separately in the fingerprint image to be verified and the registered fingerprint image according to comparison result Sign point；And

The fingerprint image to be verified or the registered fingerprint image are rotated based at least two characteristic points, to obtain State image overlapping region.

9. electronic device according to claim 8, wherein the processor has verified that finger print information updates institute according to The operation for stating registered finger print information includes:

Filter out the fingerprint image for having verified that and corresponding to described image overlapping region in fingerprint image；And

In conjunction with the registered fingerprint image and the remaining fingerprint image having verified that in fingerprint image.

10. electronic device according to claim 6, wherein the processor has verified that finger print information updates institute according to The step of stating registered finger print information include:

Filter out the first part's finger print information for having verified that finger print information；And

In conjunction with the registered finger print information and the second part finger print information having verified that in finger print information.