WO2017080278A1 - 指纹识别方法、装置及终端设备 - Google Patents
指纹识别方法、装置及终端设备 Download PDFInfo
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- WO2017080278A1 WO2017080278A1 PCT/CN2016/096305 CN2016096305W WO2017080278A1 WO 2017080278 A1 WO2017080278 A1 WO 2017080278A1 CN 2016096305 W CN2016096305 W CN 2016096305W WO 2017080278 A1 WO2017080278 A1 WO 2017080278A1
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- 238000005516 engineering process Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
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- 238000004891 communication Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1365—Matching; Classification
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
Definitions
- the present invention relates to the field of fingerprint recognition technologies, and in particular, to a fingerprint identification method, device and terminal device.
- Fingerprint because of its lifetime immutability, uniqueness and convenience, is a very important part of identifying users. Now fingerprint identification technology has become the standard equipment of most mobile terminals. Fingerprint recognition can be used to unlock and wake up mobile terminals. And payment and other functions, therefore, fingerprint recognition meets the user's ease of use, but also puts forward better requirements for security.
- the user needs to register the fingerprint template first.
- the user inputs the fingerprint image several times in different positions of the finger, and then integrates the fingerprints to generate a complete fingerprint template, and then matches the collected fingerprint and the fingerprint template.
- the process of fingerprint recognition is divided into feature extraction, save feature data, and comparison feature data, respectively.
- the fingerprint image of the user is read by the fingerprint reading device, and then the original fingerprint image is subjected to preliminary processing to make it more clear, and then the processed fingerprint image is matched with the fingerprint template to determine whether the fingerprint image is The match was successful.
- the time taken from the process of collecting the fingerprint image to determining whether the fingerprint image is successfully matched is called the fingerprint recognition time, and the fingerprint recognition time is further divided into three time segments, namely, the feature extraction time segment, the feature data storage time segment, and the comparison feature data time. Segment, and the most important link is to compare the link of feature data, that is, the link of fingerprint matching. Therefore, how to improve the matching speed of fingerprint matching and improve the speed of fingerprint recognition is a problem that needs to be solved.
- a first object of the present invention is to propose a fingerprint recognition method.
- the method can improve the correct rate of fingerprint recognition, and improve the security of the fingerprint password while satisfying the convenience of the user.
- a second object of the present invention is to provide a fingerprint identification device.
- a third object of the present invention is to provide a terminal device.
- a fourth object of the present invention is to propose another terminal device.
- a fifth object of the present invention is to provide a non-volatile computer storage medium.
- the first aspect of the present invention provides a fingerprint identification method, including: collecting a plurality of fingerprint images that are pre-recorded, and composing a fingerprint template according to the plurality of fingerprint images, wherein the plurality of fingerprints The images are sorted in the first matching order in the fingerprint template; when the fingerprint recognition is performed, the fingerprint image is collected; and the collected fingerprint image and the plurality of fingerprint images in the fingerprint template are matched according to the first matching order And determining, according to the matching result, whether the collected fingerprint image is successfully recognized.
- the fingerprint identification method is configured to store the fingerprint images in the fingerprint template in a predetermined order according to a plurality of fingerprint images that are first entered by the user, and sequentially match the collected fingerprint images with the fingerprint templates in the fingerprint template according to a predetermined order.
- the matching result determines whether the fingerprint image is successfully recognized, thereby improving the correct rate of fingerprint recognition, and improving the security of the fingerprint password while satisfying the convenience of the user.
- the method further includes: according to the number of times the matching fingerprint image is successfully matched with the fingerprint image in the fingerprint template, The first matching order is adjusted to a second matching order.
- adjusting the first matching order to the second matching sequence according to the number of times the matching fingerprint image is successfully matched with the fingerprint image in the fingerprint template specifically includes: recording the fingerprint The number of times the fingerprint image is successfully matched in the template; the fingerprint images in the fingerprint template are sorted in descending order of the number of successful matches, and the sorted order is used as the second matching order.
- the fingerprint images with the same number of matching success times are further sorted according to the matching frequency.
- the fingerprint identification method further includes: determining whether the number of times the collected fingerprint image is collected exceeds a first preset threshold, and if the number of collections exceeds a first preset threshold, The number of times the matching fingerprint image is successfully matched with the fingerprint image in the fingerprint template adjusts the first matching order to a second matching order.
- the fingerprint identification method further includes: recording a number of times the matching of the fingerprint image in the first position in the fingerprint template fails, if the matching of the fingerprint image in the first position fails If the number of times exceeds the second preset threshold, the first matching order is adjusted to the second matching order according to the number of times the captured fingerprint image matches the fingerprint image in the fingerprint template.
- matching the collected fingerprint image with the plurality of fingerprint images in the fingerprint template according to the first matching sequence specifically includes: acquiring the captured fingerprint image and the fingerprint template The fingerprint image of a location is matched. If the matching is successful, the number of successful matching of the collected fingerprint image is recorded, and it is determined whether the number of successful matches exceeds a third preset threshold, if the third is not exceeded. Preset threshold, then enter one Step: matching the collected fingerprint image with the fingerprint image in the second position in the fingerprint template; if the third preset threshold is exceeded, determining that the collected fingerprint image is successfully identified.
- matching the collected fingerprint image with the fingerprint image in the first position in the fingerprint template specifically includes: extracting a plurality of feature points of the collected fingerprint image, and collecting the Matching a plurality of feature points of the fingerprint image with the plurality of feature points of the fingerprint image at the first location, if the captured fingerprint image matches the plurality of feature points of the fingerprint image at the first location The number of the plurality of feature points is greater than the fourth preset threshold, and determining that the collected fingerprint image matches the fingerprint image at the first location.
- the order of the fingerprint images in the fingerprint template is adjusted according to the number of successful matching of the fingerprint images in the fingerprint template, so that the recognition time of the fingerprint recognition can be effectively shortened, and the fingerprint recognition is performed with the user.
- the number of times increases, the distribution of the matching frequency of the fingerprint image in the fingerprint template is more clear, and the ordering of the fingerprint images in the fingerprint template is more scientific, so the recognition time of the fingerprint recognition is faster.
- the second aspect of the present invention provides a fingerprint identification device, including: a first acquisition module, which collects a plurality of fingerprint images that are pre-recorded; and a generation module that is configured to be configured according to the plurality of fingerprint images.
- a fingerprint template wherein the plurality of fingerprint images are sorted in the first matching order in the fingerprint template;
- the second collecting module is configured to collect a fingerprint image when performing fingerprint recognition;
- a matching module is configured to collect the fingerprint image The fingerprint image is matched with the plurality of fingerprint images in the fingerprint template according to the first matching order, and whether the captured fingerprint image is successfully identified is determined according to the matching result.
- the fingerprint identification device saves the fingerprint images that are first entered by the user in the fingerprint template according to a predetermined order, and sequentially matches the collected fingerprint images and the fingerprint templates in the fingerprint template according to a predetermined order, and then according to the The matching result determines whether the fingerprint image is successfully recognized, thereby improving the correct rate of fingerprint recognition, and improving the security of the fingerprint password while satisfying the convenience of the user.
- the fingerprint identification device further includes: an adjustment module, configured to: perform the first matching sequence according to the number of times the captured fingerprint image matches the fingerprint image in the fingerprint template Adjust to the second matching order.
- the adjusting module is specifically configured to: record a number of successful matching of the fingerprint image in the fingerprint template; and use the fingerprint template in descending order of the number of successful matches.
- the fingerprint images in the order are sorted, and the sorted order is taken as the second matching order.
- the adjusting module is further configured to: if it is determined that the number of matching of the two fingerprint images in the fingerprint template is the same, the fingerprint with the same matching success number is further matched according to the matching frequency The images are sorted.
- the fingerprint identification device further includes: a first determining module, configured to determine whether the number of times the collected fingerprint image is collected exceeds a first preset threshold, if the number of times of the collection exceeds the first Preset threshold, And the adjusting module adjusts the first matching order to a second matching order according to the number of times the captured fingerprint image matches the fingerprint image in the fingerprint template.
- the fingerprint identification device further includes: a second determining module, configured to record a number of times the matching of the fingerprint image in the first position in the fingerprint template fails, and if the If the number of times the matching of the fingerprint image of the location fails to exceed the second preset threshold, the adjusting module adjusts the first matching sequence according to the number of times the matching fingerprint image matches the fingerprint image in the fingerprint template. The order of the second match.
- a second determining module configured to record a number of times the matching of the fingerprint image in the first position in the fingerprint template fails, and if the If the number of times the matching of the fingerprint image of the location fails to exceed the second preset threshold, the adjusting module adjusts the first matching sequence according to the number of times the matching fingerprint image matches the fingerprint image in the fingerprint template. The order of the second match.
- the matching module is specifically configured to: match the collected fingerprint image with the fingerprint image in the first position in the fingerprint template, and if the matching is successful, record the collected fingerprint image. Correspondingly matching the number of successful times, and determining whether the number of successful matches exceeds a third preset threshold. If the third preset threshold is not exceeded, the collected fingerprint image is further located in the fingerprint template. The fingerprint image of the second location is matched; if the third preset threshold is exceeded, it is determined that the captured fingerprint image is successfully identified.
- the matching module is further configured to: extract a plurality of feature points of the collected fingerprint image, and set a plurality of feature points of the collected fingerprint image to the first position Matching a plurality of feature points of the fingerprint image, if the number of the plurality of feature points of the collected fingerprint image matching the plurality of feature points of the fingerprint image in the first position is greater than a fourth preset threshold, Determining that the acquired fingerprint image matches the fingerprint image at the first location.
- the fingerprint identification device of the embodiment of the present invention adjusts the order of the fingerprint images in the fingerprint template according to the number of successful matching of the fingerprint images in the fingerprint template, so that the recognition time of the fingerprint recognition can be effectively shortened, and the fingerprint recognition is performed with the user.
- the number of times increases, the distribution of the matching frequency of the fingerprint image in the fingerprint template is more clear, and the ordering of the fingerprint images in the fingerprint template is more scientific, so the recognition time of the fingerprint recognition is faster.
- a third aspect of the present invention provides a terminal device.
- the fingerprint images that are first entered by the user are saved in the fingerprint template according to a predetermined order, and the collected fingerprint images and the fingerprint templates in the fingerprint template are sequentially matched in a predetermined order, and then according to the matching result. It is judged whether the fingerprint image is successfully recognized, thereby improving the correct rate of fingerprint recognition, and improving the security of the fingerprint password while satisfying the user's convenience of use.
- the order of the fingerprint images in the fingerprint template is adjusted, thereby effectively shortening the recognition time of the fingerprint recognition, and the fingerprints in the fingerprint template are increased as the number of times the user performs fingerprint recognition increases.
- a fourth aspect of the present invention provides a terminal device, including: one or more processors; a memory; one or more programs, wherein the one or more programs are stored in the memory when the one is Or when the plurality of processors are executed, performing the following steps: collecting a plurality of fingerprint images that are pre-recorded, and according to the plurality of The fingerprint image is composed of a fingerprint template, wherein the plurality of fingerprint images are sorted in the first matching order in the fingerprint template; when the fingerprint recognition is performed, the fingerprint image is collected; and the collected fingerprint image is in the fingerprint template The plurality of fingerprint images are matched according to the first matching order, and it is determined whether the collected fingerprint image is successfully recognized according to the matching result.
- a fifth aspect of the present invention provides a non-volatile computer storage medium storing one or more programs, when the one or more programs are executed by a device, causing the device Performing the following steps: collecting a plurality of fingerprint images that are pre-recorded, and composing a fingerprint template according to the plurality of fingerprint images, wherein the plurality of fingerprint images are sorted in the first matching order in the fingerprint template; At the time of identification, the fingerprint image is collected; the captured fingerprint image is matched with the plurality of fingerprint images in the fingerprint template according to the first matching order, and whether the collected fingerprint image is successfully recognized is determined according to the matching result.
- FIG. 1 is a flow chart of a method for identifying a fingerprint according to an embodiment of the present invention
- FIG. 2 is a flow chart of a method for identifying a fingerprint according to an embodiment of the present invention
- FIG. 3 is a schematic structural diagram of a fingerprint identification device according to an embodiment of the present invention.
- FIG. 4 is a schematic structural diagram of a fingerprint identification device according to an embodiment of the present invention.
- first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
- features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
- the meaning of "a plurality” is two or more unless specifically and specifically defined otherwise.
- FIG. 1 is a flow chart of a method for identifying a fingerprint according to an embodiment of the present invention.
- the fingerprint identification method includes:
- S101 Collect a plurality of fingerprint images that are pre-recorded, and form a fingerprint template according to the plurality of fingerprint images, wherein the plurality of fingerprint images are sorted in the first matching order in the fingerprint template.
- the fingerprint reading device such as an optical fingerprint collector, a thermal sensor, a radio frequency sensor, or the like, may collect multiple fingerprint images recorded by the user, and then generate multiple fingerprint images according to the user input.
- Fingerprint templates instead of integrating a plurality of fingerprint images recorded by the user into one fingerprint template, the plurality of fingerprint images recorded by the user are sorted according to the first matching order in the fingerprint template.
- the number of fingerprint images in the fingerprint template may be preset in the terminal device, and may preferably be 20, and some of the fingerprint images are fingerprint regions of the central portion of the user's finger, and some are fingerprint regions around the user's finger. . Further, these fingerprint images are added to the fingerprint template in a predetermined order. For example, 20 fingerprint images are numbered according to 1-20, and the position of the fingerprint image in the fingerprint template is determined according to the number.
- S102 Collect fingerprint images when performing fingerprint recognition.
- the fingerprint input device currently collects the fingerprint image currently input by the user.
- the collected fingerprint image is matched with the fingerprint image in the first position in the fingerprint template. If the matching is successful, the number of matching successes of the collected fingerprint image is recorded, and the matching is successful. If the number of times exceeds the third preset threshold, if the third preset threshold is not exceeded, the collected fingerprint image is further matched with the fingerprint image in the second position in the fingerprint template; if the third preset threshold is exceeded, the collection is determined. The fingerprint image was successfully identified.
- the collected fingerprint image and each fingerprint template in the fingerprint template are sequentially matched according to a predetermined first matching order, and if the number of fingerprint images in the fingerprint template matching the collected fingerprint image exceeds a preset number If the number of successful matching of the collected fingerprint images exceeds a third preset threshold, it is determined that the collected fingerprint images are successfully identified. For example, the captured fingerprint image is matched with the fingerprint image ranked first in the first matching sequence in the fingerprint template. If the matching is successful, it is determined whether the number of successful matches exceeds the third preset threshold, if not exceeded the third. The preset threshold is further matched with the fingerprint image of the second matching image in the first matching sequence in the fingerprint template.
- the matching is successful, it is determined whether the number of successful matches exceeds the third preset threshold. Exceeding the third preset threshold, And determining that the collected fingerprint image is successfully identified. If the third preset threshold is not exceeded, the collected fingerprint image is further matched with the fingerprint image of the fingerprint template that is ranked third in the first matching sequence, and so on, until If it is determined that the number of successful matches exceeds the third preset threshold, it is determined that the collected fingerprint image is successfully identified.
- the specific method for matching the collected fingerprint image with the fingerprint image at the first position in the fingerprint template is to extract multiple feature points of the collected fingerprint image, and multiple feature points of the collected fingerprint image are Matching a plurality of feature points of the fingerprint image in the first position, and if the number of the plurality of feature points of the collected fingerprint image matching the plurality of feature points of the fingerprint image in the first position is greater than a fourth preset threshold, It is judged that the acquired fingerprint image matches the fingerprint image in the first position.
- the function of unlocking the screen or continuing the payment may be implemented, and when it is determined that the collected fingerprint identification is unsuccessful, no response is made.
- the fingerprint identification method is configured to store the fingerprint images in the fingerprint template in a predetermined order according to a plurality of fingerprint images that are first entered by the user, and sequentially match the collected fingerprint images with the fingerprint templates in the fingerprint template according to a predetermined order.
- the matching result determines whether the fingerprint image is successfully recognized, thereby improving the correct rate of fingerprint recognition, and improving the security of the fingerprint password while satisfying the convenience of the user.
- FIG. 2 is a flow chart of a fingerprint identification method in accordance with an embodiment of the present invention.
- the fingerprint identification method includes:
- S201 Collect a plurality of fingerprint images that are pre-recorded, and form a fingerprint template according to the plurality of fingerprint images, wherein the plurality of fingerprint images are sorted in the first matching order in the fingerprint template.
- S202 Collect fingerprint images when performing fingerprint recognition.
- S204 Adjust the first matching order to the second matching order according to the number of times the captured fingerprint image matches the fingerprint image in the fingerprint template.
- the number of successful matching of the fingerprint images in the fingerprint template is recorded, and the fingerprint images in the fingerprint template are sorted in descending order of the number of successful matches, and the sorted order is used as The second matching order.
- the fingerprint images are arranged in the first matching order in the fingerprint template, it is possible that the fingerprint image around the user's finger is ranked in the front position of the fingerprint template, and the user's usage habit is often in the middle of the finger.
- the location is fingerprinted, so the matching between the fingerprint image collected during the matching process and the fingerprint image in the front position of the fingerprint template is often low, resulting in a long matching time. Therefore, in the present invention, the user's usage habits are used to adjust the order of the fingerprint images in the fingerprint template to achieve the purpose of shortening the matching time.
- the terminal device stores the number of times each fingerprint image in the fingerprint template is successfully matched, and When the collected fingerprint image is matched with the fingerprint template, when the captured fingerprint image matches one of the fingerprint template sequences, the number of successful matching of the fingerprint image is increased once.
- the fingerprint images in the fingerprint template are reordered according to the number of successful matching times of each fingerprint image, and the fingerprint image with high matching success times is placed in the front position in the fingerprint template.
- the fingerprint image with the highest number of matching successes is ranked at the foremost position in the fingerprint template
- the fingerprint image with the second highest matching success number is ranked in the second front position in the fingerprint template, and then generated according to the second A fingerprint template that matches the sequentially arranged fingerprint images.
- the fingerprint images with the highest number of matching successes can be matched first to quickly identify the collected fingerprint image.
- the data of the fingerprint identification is recorded, that is, the matching number of each fingerprint image in the fingerprint template, because the fingerprint identification data based on the user multiple times is in the fingerprint template.
- the order of the fingerprint images is adjusted. Therefore, as the number of fingerprint recognitions by the user increases, the order of the fingerprint images in the fingerprint template is more ideal, and the speed of fingerprint recognition is faster.
- the first matching is performed according to the number of successful matching of the collected fingerprint image and the fingerprint image in the fingerprint template.
- the order is adjusted to the second matching order. Specifically, the number of times the fingerprint image collected by the user is collected is recorded, and the number of times the fingerprint image is collected exceeds a first preset threshold, for example, 50 times. If the first preset threshold is exceeded, the fingerprint template is triggered. The adjustment of the first matching order of the fingerprint image, that is, the ordering of the fingerprint images in the fingerprint template is adjusted.
- the collected fingerprint image is first matched with the top-ranked fingerprint image in the fingerprint template. If the captured fingerprint image fails to match the top-ranked fingerprint image, the collected fingerprint is recorded. The number of times the image fails to match the top fingerprint image. If the number of matching failures exceeds the second preset threshold, the success rate of matching the fingerprint image with the captured fingerprint image is not high, and the position of the sorted image should be adjusted. To the later position, the first matching order of the fingerprint images in the fingerprint template is triggered, that is, the ordering of the fingerprint images in the fingerprint template is adjusted.
- the order of the fingerprint images in the fingerprint template is adjusted according to the number of successful matching of the fingerprint images in the fingerprint template, so that the recognition time of the fingerprint recognition can be effectively shortened, and the fingerprint recognition is performed with the user.
- the number of times increases, the clearer the distribution of the matching frequency of the fingerprint image in the fingerprint template, the fingerprint template
- the ordering of fingerprint images is more scientific, so the recognition time of fingerprint recognition is faster.
- the present invention also proposes a fingerprint identification device.
- FIG. 3 is a schematic structural diagram of a fingerprint identification device according to an embodiment of the present invention.
- the fingerprint identification device includes: a first collection module 301, a generation module 302, a second collection module 303, and a matching module 304.
- the first collection module 301 collects a plurality of fingerprint images that are pre-recorded.
- the generating module 302 is configured to form a fingerprint template according to the plurality of fingerprint images, wherein the plurality of fingerprint images are sorted in the first matching order in the fingerprint template.
- the plurality of fingerprint images recorded by the user may be collected by the first collection module 301, and then the generating module 302 generates a plurality of fingerprint templates according to the plurality of fingerprint images recorded by the user. That is to say, in the present invention, instead of integrating a plurality of fingerprint images recorded by the user into one fingerprint template, the plurality of fingerprint images recorded by the user are sorted according to the first matching order in the fingerprint template.
- the number of fingerprint images in the fingerprint template may be preset in the terminal device, and may preferably be 20, and some of the fingerprint images are fingerprint regions of the central portion of the user's finger, and some are fingerprint regions around the user's finger. . Further, these fingerprint images are added to the fingerprint template in a predetermined order. For example, 20 fingerprint images are numbered according to 1-20, and the position of the fingerprint image in the fingerprint template is determined according to the number.
- the second collection module 303 is configured to collect a fingerprint image when performing fingerprint recognition. Specifically, when the user performs fingerprint recognition on the terminal device, for example, using a fingerprint to implement screen unlocking, or using a fingerprint to perform payment, the second collection module 303 collects a fingerprint image currently input by the user.
- the matching module 304 is configured to match the collected fingerprint image with the plurality of fingerprint images in the fingerprint template according to a first matching sequence, and determine, according to the matching result, whether the collected fingerprint image is successfully identified.
- the matching module 304 matches the collected fingerprint image with the fingerprint image in the first position in the fingerprint template. If the matching is successful, the number of matching successes of the collected fingerprint image is recorded, and the judgment is performed. If the number of times the matching succeeds exceeds the third preset threshold, if the third preset threshold is not exceeded, the collected fingerprint image is further matched with the fingerprint image in the second position in the fingerprint template; if the third preset threshold is exceeded, Then, it is judged that the collected fingerprint image is successfully recognized.
- the matching module 304 sequentially matches each of the collected fingerprint images and the fingerprint template in a predetermined first matching order, if the number of fingerprint images in the fingerprint template matching the collected fingerprint image exceeds The preset number, that is, the matching success number of the collected fingerprint image exceeds the third preset threshold, determines that the collected fingerprint image is successfully identified.
- the matching module 304 matches the collected fingerprint image with the fingerprint image that is ranked first in the first matching sequence in the fingerprint template. If the matching succeeds, it is determined whether the number of successful matches exceeds a third preset threshold. If the third preset threshold is exceeded, the collected fingerprint image and the fingerprint template are further arranged in the first matching sequence in the second front The fingerprint image is matched. If the matching is successful, it is determined whether the number of successful matches exceeds a third preset threshold. If the third preset threshold is exceeded, the captured fingerprint image is successfully identified.
- the collected fingerprint image is further matched with the fingerprint image of the fingerprint template that is ranked third in the first matching sequence, and so on, until the number of successful matching times exceeds the third preset threshold, and the collected fingerprint image is determined.
- the recognition was successful.
- the matching module 304 determines that the collected fingerprint is successfully recognized, the function of unlocking the screen or continuing to perform the payment may be implemented, and when it is determined that the collected fingerprint identification is unsuccessful, no response is made.
- the specific method for matching the collected fingerprint image with the fingerprint image at the first position in the fingerprint template is: the matching module 304 extracts multiple feature points of the collected fingerprint image, and multiple images of the collected fingerprint image The feature point is matched with the plurality of feature points of the fingerprint image in the first position, and if the number of the plurality of feature points of the collected fingerprint image matching the plurality of feature points of the fingerprint image in the first position is greater than the fourth preset The threshold determines that the acquired fingerprint image matches the fingerprint image at the first location.
- the fingerprint identification device saves the fingerprint images that are first entered by the user in the fingerprint template according to a predetermined order, and sequentially matches the collected fingerprint images and the fingerprint templates in the fingerprint template according to a predetermined order, and then according to the The matching result determines whether the fingerprint image is successfully recognized, thereby improving the correct rate of fingerprint recognition, and improving the security of the fingerprint password while satisfying the convenience of the user.
- FIG. 4 is a schematic structural diagram of a fingerprint identification device according to an embodiment of the present invention.
- the fingerprint identification device includes: a first collection module 301, a generation module 302, a second collection module 303, a matching module 304, an adjustment module 305, a first determination module 306, and a second determination module 307.
- the adjusting module 305 is configured to adjust the first matching order to the second matching order according to the number of times the matching fingerprint image and the fingerprint image in the fingerprint template are successfully matched.
- the adjustment module 305 records the number of successful matching of the fingerprint images in the fingerprint template, and sorts the fingerprint images in the fingerprint template in descending order of the number of successful matches, and uses the sorted order as the second matching order. . If it is determined that the number of matching successes of the two fingerprint images in the fingerprint template is the same, the adjustment module 305 further sorts the fingerprint images with the same number of matching success times according to the matching frequency.
- the terminal device stores the number of times each fingerprint image in the fingerprint template is successfully matched, and the matching module 304, when matching the collected fingerprint image with the fingerprint template, is in the collected fingerprint image and the fingerprint template sequence.
- the number of successful matching of the fingerprint image is increased once.
- the adjustment module 305 reorders the fingerprint images in the fingerprint template according to the number of successful matching times of each fingerprint image, and puts the fingerprint image with high matching success times into the front position in the fingerprint template.
- the adjustment module 305 arranges the fingerprint image with the highest number of matching successes in the foremost position in the fingerprint template, and arranges the fingerprint image with the second highest matching success number in the second front position in the fingerprint template, thereby generating A fingerprint template of the fingerprint image arranged in the second matching order. Further, the fingerprint image to be acquired by the matching module 304 When matching with the fingerprint template, it is possible to first match the fingerprint images with the highest number of matching successes to quickly identify the collected fingerprint images.
- the trigger adjustment module 305 may re-order the fingerprint images in the fingerprint template. Therefore, the fingerprint identification device may further include a first determining module 306 and a second determining module 307.
- the first determining module 306 is configured to determine whether the collected number of collected fingerprint images exceeds a first preset threshold. If the number of times of collection exceeds a first preset threshold, the adjusting module according to the collected fingerprint image and the fingerprint image in the fingerprint template. The number of successful matches adjusts the first matching order to the second matching order. Specifically, the first determining module 306 records the number of times the fingerprint image is collected by the user for fingerprint recognition, and determines whether the number of times the collected fingerprint image is collected exceeds a first preset threshold, for example, 50 times.
- the first determining module 306 determines the adjustment of the first matching sequence of the fingerprint image in the fingerprint template by the trigger adjustment module 305, that is, the adjustment module 305 adjusts the order of the fingerprint images in the fingerprint template.
- the second judging module 307 is configured to record the number of times the matching of the fingerprint image in the first position of the fingerprint template fails. If the number of matching failures of the fingerprint image in the first position exceeds the second preset threshold, the adjustment module is configured according to the collection. The number of successful matching of the fingerprint image with the fingerprint image in the fingerprint template adjusts the first matching order to the second matching order. Specifically, when the matching module 304 performs fingerprint recognition, the captured fingerprint image is first matched with the top-ranked fingerprint image in the fingerprint template. If the captured fingerprint image fails to match the top-ranked fingerprint image, The second determining module 307 records the number of times the captured fingerprint image fails to match the top fingerprint image.
- the second determining module 307 determines the adjustment of the first matching order of the fingerprint image in the fingerprint template by the trigger adjusting module 305, that is, the fingerprint image in the fingerprint template. Sort to adjust.
- the fingerprint identification device of the embodiment of the present invention adjusts the order of the fingerprint images in the fingerprint template according to the number of successful matching of the fingerprint images in the fingerprint template, so that the recognition time of the fingerprint recognition can be effectively shortened, and the fingerprint recognition is performed with the user.
- the number of times increases, the distribution of the matching frequency of the fingerprint image in the fingerprint template is more clear, and the ordering of the fingerprint images in the fingerprint template is more scientific, so the recognition time of the fingerprint recognition is faster.
- the present invention also provides a terminal device, including the fingerprint identification device of the embodiment of the present invention.
- the fingerprint images that are first entered by the user are saved in the fingerprint template according to a predetermined order, and the collected fingerprint images and the fingerprint templates in the fingerprint template are sequentially matched in a predetermined order, and then according to the matching result. It is judged whether the fingerprint image is successfully recognized, thereby improving the correct rate of fingerprint recognition, and improving the security of the fingerprint password while satisfying the convenience of the user.
- the order of the fingerprint images in the fingerprint template is adjusted according to the number of successful matching of the fingerprint images in the fingerprint template. Therefore, the recognition time of the fingerprint recognition can be effectively shortened, and as the number of times of fingerprint recognition by the user increases, the matching of the matching frequency of the fingerprint image in the fingerprint template becomes clearer, and the ordering of the fingerprint images in the fingerprint template is more scientific. Therefore, the recognition time of fingerprint recognition is faster.
- portions of the invention may be implemented in hardware, software, firmware or a combination thereof.
- multiple steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system.
- a suitable instruction execution system For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques well known in the art: having logic gates for implementing logic functions on data signals. Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.
- the terms “installation”, “connected”, “connected”, and the like are to be understood broadly, and may be either a fixed connection or a detachable connection, or Integral; may be mechanically connected or electrically connected; may be directly connected, or may be indirectly connected through an intermediate medium, and may be internal communication of two elements or an interaction relationship of two elements unless explicitly defined otherwise.
- the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
Abstract
本发明公开了一种指纹识别方法、装置及终端设备。其中，指纹的识别方法包括：采集预先录入的多个指纹图像，并根据多个指纹图像组成指纹模板，其中，多个指纹图像在指纹模板中按第一匹配顺序进行排序；在进行指纹识别时，采集指纹图像；将采集的指纹图像与指纹模板中的多个指纹图像按照第一匹配顺序进行匹配，并根据匹配结果判断采集的指纹图像是否识别成功。本发明实施例的指纹的识别方法，可以提高指纹识别的正确率，在满足用户使用便捷性的同时，提高指纹密码的安全性。
Description
相关申请的交叉引用
本申请要求广东欧珀移动通信有限公司于2015年11月13日提交的、发明名称为“指纹识别方法、装置及终端设备”的、中国专利申请号“201510786369.4”的优先权。
本发明涉及指纹识别技术领域，尤其涉及一种指纹识别的方法、装置及终端设备。
指纹，由于其具有终身不变性、唯一性和方便性成为对用户进行身份识别非常重要的一部分，现在指纹识别技术已经成为大多数移动终端的标准配备，指纹识别可以用于移动终端的解锁、唤醒和支付等功能，因此，指纹识别在满足用户使用便捷性的同时，对安全性也提出了更好的要求。
目前，用户需要先注册指纹模板，例如用户用手指的不同位置分别录入几次指纹图像，然后对这几次指纹进行整合生成一个完整的指纹模板，进而通过将采集的指纹和指纹模板中进行匹配从而实现对用户指纹的识别。具体而言，指纹识别的过程分别分为特征提取、保存特征数据和比对特征数据。首先通过指纹读取设备读取到用户的指纹图像，然后对原始的指纹图像进行初步的处理，使之更加清晰，再将处理后的指纹图像与指纹模板进行特征点匹配，进而判断指纹图像是否匹配成功。从采集指纹图像到判断指纹图像是否匹配成功的这个过程所用的时间称为指纹识别时间，指纹识别时间又分为三个时间段，即特征提取时间段、特征数据保存时间段和对比特征数据时间段，而最为重要的一个环节就是对比特征数据的环节，即指纹匹配的环节，因此如何提高指纹匹配的匹配速度，从而提高指纹识别速度，是目前需要解决的问题。
发明内容
本发明旨在至少在一定程度上解决相关技术中的技术问题之一。为此，本发明的第一个目的在于提出一种指纹识别方法。该方法可以提高指纹识别的正确率，在满足用户使用便捷性的同时，提高指纹密码的安全性。
本发明的第二个目的在于提出一种指纹的识别装置。
本发明的第三个目的在于提出一种终端设备。
本发明的第四个目的在于提出另一种终端设备。
本发明的第五个目的在于提出一种非易失性计算机存储介质。
为达上述目的，本发明第一方面实施例提出了一种指纹识别方法，包括：采集预先录入的多个指纹图像，并根据所述多个指纹图像组成指纹模板，其中，所述多个指纹图像在所述指纹模板中按第一匹配顺序进行排序；在进行指纹识别时，采集指纹图像；将采集的指纹图像与所述指纹模板中的多个指纹图像按照所述第一匹配顺序进行匹配，并根据匹配结果判断所述采集的指纹图像是否识别成功。
本发明实施例的指纹的识别方法，根据用户先录入的多个指纹图像按照预定的顺序保存在指纹模板中，将采集的指纹图像与指纹模板中的指纹模板按照预定顺序依次进行匹配，进而根据匹配结果判断指纹图像是否识别成功，由此，可以提高指纹识别的正确率，在满足用户使用便捷性的同时，提高指纹密码的安全性。
在本发明的一个实施例中，在根据匹配结果判断所述采集的指纹图像是否识别成功之后，还包括：根据所述采集的指纹图像与所述指纹模板中的指纹图像的匹配成功的次数将所述第一匹配顺序调整为第二匹配顺序。
在本发明的一个实施例中，根据所述采集的指纹图像与所述指纹模板中的指纹图像的匹配成功的次数将所述第一匹配顺序调整为第二匹配顺序具体包括：记录所述指纹模板中指纹图像的匹配成功的次数；按照所述匹配成功的次数由高到低的顺序对所所述指纹模板中的指纹图像进行排序，将排序后的顺序作为所述第二匹配顺序。
在本发明的一个实施例中，若判断所述指纹模板中的两个指纹图像的匹配成功的次数相同，则进一步根据匹配频率对所述匹配成功次数相同的指纹图像进行排序。
在本发明的一个实施例中，所述指纹识别方法还包括：判断所述采集的指纹图像的采集次数是否超过第一预设阈值，若所述采集次数超过第一预设阈值，则根据所述采集的指纹图像与所述指纹模板中的指纹图像的匹配成功的次数将所述第一匹配顺序调整为第二匹配顺序。
在本发明的一个实施例中，所述指纹识别方法还包括：记录所述指纹模板中处于第一位置的指纹图像的匹配失败的次数，若所述处于第一位置的指纹图像的匹配失败的次数超过第二预设阈值，则根据所述采集的指纹图像与所述指纹模板中的指纹图像的匹配成功的次数将所述第一匹配顺序调整为第二匹配顺序。
在本发明的一个实施例中，将采集的指纹图像与所述指纹模板中的多个指纹图像按照所述第一匹配顺序进行匹配具体包括：将采集的指纹图像与所述指纹模板中处于第一位置的指纹图像进行匹配，若匹配成功，则记录所述采集的指纹图像对应的匹配成功的次数，并判断所述匹配成功的次数是否超过第三预设阈值，若未超过所述第三预设阈值，则进一
步将所述采集的指纹图像与所述指纹模板中处于第二位置的指纹图像进行匹配；若超过所述第三预设阈值，则判断所述采集的指纹图像识别成功。
在本发明的一个实施例中，将采集的指纹图像与所述指纹模板中处于第一位置的指纹图像进行匹配具体包括：提取所述采集的指纹图像的多个特征点，并将所述采集的指纹图像的多个特征点与所述处于第一位置的指纹图像的多个特征点进行匹配，若与所述处于第一位置的指纹图像的多个特征点匹配的所述采集的指纹图像的多个特征点的数量大于第四预设阈值，则判断所述采集的指纹图像与所述处于第一位置的指纹图像匹配。
本发明实施例的指纹的识别方法，根据指纹模板中指纹图像的匹配成功的次数调整指纹图像在指纹模板中的排序，从而可以有效的缩短指纹识别的识别时间，并且随着用户进行指纹识别的次数的增多，指纹模板中指纹图像的匹配频率的分配也就越清晰，指纹模板中指纹图像的排序也就更科学，因此指纹识别的识别时间就越快。
为达上述目的，本发明第二方面实施例提出了一种指纹的识别装置，包括：第一采集模块，采集预先录入的多个指纹图像；生成模块，用于根据所述多个指纹图像组成指纹模板，其中，所述多个指纹图像在所述指纹模板中按第一匹配顺序进行排序；第二采集模块，用于在进行指纹识别时，采集指纹图像；匹配模块，用于将采集的指纹图像与所述指纹模板中的多个指纹图像按照所述第一匹配顺序进行匹配，并根据匹配结果判断所述采集的指纹图像是否识别成功。
本发明实施例的指纹的识别装置，根据用户先录入的多个指纹图像按照预定的顺序保存在指纹模板中，将采集的指纹图像与指纹模板中的指纹模板按照预定顺序依次进行匹配，进而根据匹配结果判断指纹图像是否识别成功，由此，可以提高指纹识别的正确率，在满足用户使用便捷性的同时，提高指纹密码的安全性。
在本发明的一个实施例中，所述指纹识别装置还包括：调整模块，用于根据所述采集的指纹图像与所述指纹模板中的指纹图像的匹配成功的次数将所述第一匹配顺序调整为第二匹配顺序。
在本发明的一个实施例中，所述调整模块具体用于：记录所述指纹模板中指纹图像的匹配成功的次数；按照所述匹配成功的次数由高到低的顺序对所所述指纹模板中的指纹图像进行排序，将排序后的顺序作为所述第二匹配顺序。
在本发明的一个实施例中，所述调整模块还用于：若判断所述指纹模板中的两个指纹图像的匹配成功的次数相同，则进一步根据匹配频率对所述匹配成功次数相同的指纹图像进行排序。
在本发明的一个实施例中，所述指纹识别装置还包括：第一判断模块，用于判断所述采集的指纹图像的采集次数是否超过第一预设阈值，若所述采集次数超过第一预设阈值，
则所述调整模块根据所述采集的指纹图像与所述指纹模板中的指纹图像的匹配成功的次数将所述第一匹配顺序调整为第二匹配顺序。
在本发明的一个实施例中，所述指纹识别装置还包括：第二判断模块，用于记录所述指纹模板中处于第一位置的指纹图像的匹配失败的次数，若判断所述处于第一位置的指纹图像的匹配失败的次数超过第二预设阈值，则所述调整模块根据所述采集的指纹图像与所述指纹模板中的指纹图像的匹配成功的次数将所述第一匹配顺序调整为第二匹配顺序。
在本发明的一个实施例中，所述匹配模块具体用于：将采集的指纹图像与所述指纹模板中处于第一位置的指纹图像进行匹配，若匹配成功，则记录所述采集的指纹图像对应的匹配成功的次数，并判断所述匹配成功的次数是否超过第三预设阈值，若未超过所述第三预设阈值，则进一步将所述采集的指纹图像与所述指纹模板中处于第二位置的指纹图像进行匹配；若超过所述第三预设阈值，则判断所述采集的指纹图像识别成功。
在本发明的一个实施例中，所述匹配模块还用于：提取所述采集的指纹图像的多个特征点，并将所述采集的指纹图像的多个特征点与所述处于第一位置的指纹图像的多个特征点进行匹配，若与所述处于第一位置的指纹图像的多个特征点匹配的所述采集的指纹图像的多个特征点的数量大于第四预设阈值，则判断所述采集的指纹图像与所述处于第一位置的指纹图像匹配。
本发明实施例的指纹的识别装置，根据指纹模板中指纹图像的匹配成功的次数调整指纹图像在指纹模板中的排序，从而可以有效的缩短指纹识别的识别时间，并且随着用户进行指纹识别的次数的增多，指纹模板中指纹图像的匹配频率的分配也就越清晰，指纹模板中指纹图像的排序也就更科学，因此指纹识别的识别时间就越快。
为达上述目的，本发明第三方面实施例提出了一种终端设备。
本发明实施例的终端设备，根据用户先录入的多个指纹图像按照预定的顺序保存在指纹模板中，将采集的指纹图像与指纹模板中的指纹模板按照预定顺序依次进行匹配，进而根据匹配结果判断指纹图像是否识别成功，由此，可以提高指纹识别的正确率，在满足用户使用便捷性的同时，提高指纹密码的安全性
进而，根据指纹模板中指纹图像的匹配成功的次数调整指纹图像在指纹模板中的排序，从而可以有效的缩短指纹识别的识别时间，并且随着用户进行指纹识别的次数的增多，指纹模板中指纹图像的匹配频率的分配也就越清晰，指纹模板中指纹图像的排序也就更科学，因此指纹识别的识别时间就越快。
本发明第四方面实施例提供了一种终端设备，包括：一个或者多个处理器；存储器；一个或者多个程序，所述一个或者多个程序存储在所述存储器中，当被所述一个或者多个处理器执行时，执行以下步骤：采集预先录入的多个指纹图像，并根据所述多个
指纹图像组成指纹模板，其中，所述多个指纹图像在所述指纹模板中按第一匹配顺序进行排序；在进行指纹识别时，采集指纹图像；将采集的指纹图像与所述指纹模板中的多个指纹图像按照所述第一匹配顺序进行匹配，并根据匹配结果判断所述采集的指纹图像是否识别成功。
本发明第五方面实施例提供了一种非易失性计算机存储介质，所述计算机存储介质存储有一个或者多个程序，当所述一个或者多个程序被一个设备执行时，使得所述设备执行以下步骤：采集预先录入的多个指纹图像，并根据所述多个指纹图像组成指纹模板，其中，所述多个指纹图像在所述指纹模板中按第一匹配顺序进行排序；在进行指纹识别时，采集指纹图像；将采集的指纹图像与所述指纹模板中的多个指纹图像按照所述第一匹配顺序进行匹配，并根据匹配结果判断所述采集的指纹图像是否识别成功。
本发明附加的方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
本发明上述的和/或附加的方面和优点从下面结合附图对实施例的描述中将变得明显和容易理解，其中：
图1为根据本发明一个实施例的指纹的识别方法的流程图；
图2为根据本发明一个具体实施例的指纹的识别方法的流程图；
图3为根据本发明一个实施例的指纹的识别装置的结构示意图；
图4为根据本发明一个具体实施例的指纹的识别装置的结构示意图。
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
流程图中或在此以其他方式描述的任何过程或方法描述可以被理解为，表示包括一个或更多个用于实现特定逻辑功能或过程的步骤的可执行指令的代码的模块、片段或部分，
并且本发明的优选实施方式的范围包括另外的实现，其中可以不按所示出或讨论的顺序，包括根据所涉及的功能按基本同时的方式或按相反的顺序，来执行功能，这应被本发明的实施例所属技术领域的技术人员所理解。
图1是本发明一个实施例的指纹的识别方法的流程图。
如图1所示，指纹的识别方法包括：
S101，采集预先录入的多个指纹图像，并根据多个指纹图像组成指纹模板，其中，多个指纹图像在指纹模板中按第一匹配顺序进行排序。
具体地，在用户注册指纹时，可通过指纹读取设备，例如光学指纹采集器、热敏式传感器、射频传感器等采集用户录入的多个指纹图像，然后根据用户录入的多个指纹图像生成多个指纹模板。也就是说，本发明中并非是将用户录入的多个指纹图像整合成一个指纹模板，而是根据将用户录入的多个指纹图像在指纹模板中按照第一匹配顺序进行排序。其中，指纹模板中指纹图像的数量可以是在终端设备中预设的，优选地可以为20个，这些指纹图像有些是用户手指中心部分的指纹区域，而有些则是用户手指偏周围的指纹区域。进而，将这些指纹图像按照预定的顺序加入到指纹模板中，例如，将20个指纹图像按照1-20进行编号，根据编号确定该指纹图像在指纹模板中的位置。
S102，在进行指纹识别时，采集指纹图像。
具体地，当用户在终端设备上进行指纹识别时，比如利用指纹实现屏幕解锁，或者利用指纹进行支付时，通过指纹读取设备采集用户当前输入的指纹图像。
S103，将采集的指纹图像与指纹模板中的多个指纹图像按照第一匹配顺序进行匹配，并根据匹配结果判断采集的指纹图像是否识别成功。
在本发明的一个实施例中，将采集的指纹图像与指纹模板中处于第一位置的指纹图像进行匹配，若匹配成功，则记录采集的指纹图像对应的匹配成功的次数，并判断匹配成功的次数是否超过第三预设阈值，若未超过第三预设阈值，则进一步将采集的指纹图像与指纹模板中处于第二位置的指纹图像进行匹配；若超过第三预设阈值，则判断采集的指纹图像识别成功。
具体地，将采集到的指纹图像与指纹模板中的每个指纹模板按照预定的第一匹配顺序依次进行匹配，如果与采集的指纹图像匹配的指纹模板中指纹图像的个数超过预设个数，即采集的指纹图像的匹配成功次数超过第三预设阈值，则判断采集的指纹图像识别成功。例如，将采集的指纹图像现与指纹模板中排在第一匹配序列中最前面的指纹图像进行匹配，若匹配成功，则判断匹配成功的次数是否超过第三预设阈值，若未超过第三预设阈值，则进一步将采集的指纹图像与指纹模板中排在第一匹配序列中第二前面的指纹图像进行匹配，若匹配成功，则判断匹配成功的次数是否超过第三预设阈值，若超过第三预设阈值，
则判断采集的指纹图像识别成功，若未超过第三预设阈值，则进一步将采集的指纹图像与指纹模板中排在第一匹配序列中第三前面的指纹图像进行匹配，以此类推，直至判断匹配成功的次数超过第三预设阈值，则判断采集的指纹图像识别成功。
更具体的，将采集的指纹图像与指纹模板中处于第一位置的指纹图像进行匹配的具体方法是，提取采集的指纹图像的多个特征点，并将采集的指纹图像的多个特征点与处于第一位置的指纹图像的多个特征点进行匹配，若与处于第一位置的指纹图像的多个特征点匹配的采集的指纹图像的多个特征点的数量大于第四预设阈值，则判断采集的指纹图像与处于第一位置的指纹图像匹配。
进而，在判断出采集的指纹识别成功后，可以实现屏幕解锁或者继续进行支付等功能，而在判断出采集的指纹识别不成功时，不作出响应。
本发明实施例的指纹的识别方法，根据用户先录入的多个指纹图像按照预定的顺序保存在指纹模板中，将采集的指纹图像与指纹模板中的指纹模板按照预定顺序依次进行匹配，进而根据匹配结果判断指纹图像是否识别成功，由此，可以提高指纹识别的正确率，在满足用户使用便捷性的同时，提高指纹密码的安全性。
图2是本发明一个具体实施例的指纹的识别方法的流程图。
如图2所示，指纹的识别方法包括：
S201，采集预先录入的多个指纹图像，并根据多个指纹图像组成指纹模板，其中，多个指纹图像在指纹模板中按第一匹配顺序进行排序。
S202，在进行指纹识别时，采集指纹图像。
S203，将采集的指纹图像与指纹模板中的多个指纹图像按照第一匹配顺序进行匹配，并根据匹配结果判断采集的指纹图像是否识别成功。
S204，根据采集的指纹图像与指纹模板中的指纹图像的匹配成功的次数将第一匹配顺序调整为第二匹配顺序。
在本发明的一个实施例中，记录指纹模板中指纹图像的匹配成功的次数，并按照匹配成功的次数由高到低的顺序对所指纹模板中的指纹图像进行排序，将排序后的顺序作为第二匹配顺序。
具体地，由于指纹图像在指纹模板中是按照预第一匹配顺序排列的，因此有可能用户手指周围的指纹图像排在指纹模板中靠前的位置，而用户的使用习惯往往是用手指中部的位置进行指纹识别，因此在匹配过程中采集的指纹图像与指纹模板中靠前位置的指纹图像的匹配度往往很低，导致匹配的时间长。因此，本发明中结合用户的使用习惯调整指纹模板中指纹图像的排列顺序，来达到缩短匹配时间的目的。
具体而言，终端设备中都保存有指纹模板中的每个指纹图像被匹配成功的次数，在将
采集的指纹图像与指纹模板进行匹配时，当采集的指纹图像与指纹模板序列中的一个指纹图像匹配时，将该指纹图像的匹配成功的次数增加一次。
进而，根据每个指纹图像的匹配成功的次数的高低对指纹模板中的指纹图像重新进行排序，将匹配成功次数高的指纹图像放到指纹模板中的靠前的位置。换言之，将匹配成功的次数最高的指纹图像排在指纹模板中的最前面的位置，将匹配成功的次数第二高的指纹图像排在指纹模板中的第二前面的位置，进而生成按照第二匹配顺序排列的指纹图像的指纹模板。进而，在将采集的指纹图像与指纹模板进行匹配时，就能够首先跟匹配成功次数最高的几个指纹图像进行匹配从而快速的对采集的指纹图像进行识别。
应当理解的是，在用户每次进行指纹识别后，均记录该次指纹识别的数据，即指纹模板中每个指纹图像的匹配次数，由于是基于用户多次的指纹识别数据对指纹模板中的指纹图像的顺序进行调整，因此随着用户进行指纹识别次数的增多，指纹模板中的指纹图像的排序也就更加理想，指纹识别的速度也就越快。
在本发明的一个实施例中，触发对指纹模板中的指纹图像进行重新排序的条件可以为多个。
例如，判断采集的指纹图像的采集次数是否超过第一预设阈值，若采集次数超过第一预设阈值，则根据采集的指纹图像与指纹模板中的指纹图像的匹配成功的次数将第一匹配顺序调整为第二匹配顺序。具体地，记录用户进行指纹识别时采集的指纹图像的采集次数，判断采集指纹图像的采集次数是否超过第一预设阈值，例如50次，如果超过第一预设阈值，则触发对指纹模板中指纹图像的第一匹配顺序的调整，即对指纹模板中指纹图像的排序进行调整。
或者，例如，记录指纹模板中处于第一位置的指纹图像的匹配失败的次数，若处于第一位置的指纹图像的匹配失败的次数超过第二预设阈值，则根据采集的指纹图像与指纹模板中的指纹图像的匹配成功的次数将第一匹配顺序调整为第二匹配顺序。
具体地，在进行指纹识别时，必然是将采集的指纹图像先与指纹模板中排序最前面的指纹图像进行匹配，若采集的指纹图像与排序最前面的指纹图像匹配失败，则记录采集的指纹图像与排序最前面的指纹图像匹配失败的次数，若匹配失败的次数超过第二预设阈值，则说明该指纹图像与采集的指纹图像匹配的成功率并不高，应当将其排序的位置调整至比较靠后的位置，此时触发对指纹模板中指纹图像的第一匹配顺序的调整，即对指纹模板中指纹图像的排序进行调整。
本发明实施例的指纹的识别方法，根据指纹模板中指纹图像的匹配成功的次数调整指纹图像在指纹模板中的排序，从而可以有效的缩短指纹识别的识别时间，并且随着用户进行指纹识别的次数的增多，指纹模板中指纹图像的匹配频率的分配也就越清晰，指纹模板
中指纹图像的排序也就更科学，因此指纹识别的识别时间就越快。
为了实现上述实施例，本发明还提出了一种指纹的识别装置。
图3为根据本发明一个实施例的指纹的识别装置的结构示意图。
如图3所示，指纹的识别装置包括：第一采集模块301、生成模块302、第二采集模块303和匹配模块304。
其中，第一采集模块301采集预先录入的多个指纹图像。生成模块302用于根据多个指纹图像组成指纹模板，其中，多个指纹图像在指纹模板中按第一匹配顺序进行排序。具体地，在用户注册指纹时，可通过第一采集模块301采集用户录入的多个指纹图像，然后生成模块302根据用户录入的多个指纹图像生成多个指纹模板。也就是说，本发明中并非是将用户录入的多个指纹图像整合成一个指纹模板，而是根据将用户录入的多个指纹图像在指纹模板中按照第一匹配顺序进行排序。其中，指纹模板中指纹图像的数量可以是在终端设备中预设的，优选地可以为20个，这些指纹图像有些是用户手指中心部分的指纹区域，而有些则是用户手指偏周围的指纹区域。进而，将这些指纹图像按照预定的顺序加入到指纹模板中，例如，将20个指纹图像按照1-20进行编号，根据编号确定该指纹图像在指纹模板中的位置。
第二采集模块303用于在进行指纹识别时，采集指纹图像。具体地，当用户在终端设备上进行指纹识别时，比如利用指纹实现屏幕解锁，或者利用指纹进行支付时，通过第二采集模块303采集用户当前输入的指纹图像。
匹配模块304用于将采集的指纹图像与指纹模板中的多个指纹图像按照第一匹配顺序进行匹配，并根据匹配结果判断采集的指纹图像是否识别成功。
在本发明的一个实施例中，匹配模块304将采集的指纹图像与指纹模板中处于第一位置的指纹图像进行匹配，若匹配成功，则记录采集的指纹图像对应的匹配成功的次数，并判断匹配成功的次数是否超过第三预设阈值，若未超过第三预设阈值，则进一步将采集的指纹图像与指纹模板中处于第二位置的指纹图像进行匹配；若超过第三预设阈值，则判断采集的指纹图像识别成功。
具体而言，匹配模块304将采集到的指纹图像与指纹模板中的每个指纹模板按照预定的第一匹配顺序依次进行匹配，如果与采集的指纹图像匹配的指纹模板中指纹图像的个数超过预设个数，即采集的指纹图像的匹配成功次数超过第三预设阈值，则判断采集的指纹图像识别成功。
例如，匹配模块304将采集的指纹图像现与指纹模板中排在第一匹配序列中最前面的指纹图像进行匹配，若匹配成功，则判断匹配成功的次数是否超过第三预设阈值，若未超过第三预设阈值，则进一步将采集的指纹图像与指纹模板中排在第一匹配序列中第二前面
的指纹图像进行匹配，若匹配成功，则判断匹配成功的次数是否超过第三预设阈值，若超过第三预设阈值，则判断采集的指纹图像识别成功，若未超过第三预设阈值，则进一步将采集的指纹图像与指纹模板中排在第一匹配序列中第三前面的指纹图像进行匹配，以此类推，直至判断匹配成功的次数超过第三预设阈值，则判断采集的指纹图像识别成功。进而，在匹配模块304判断出采集的指纹识别成功后，可以实现屏幕解锁或者继续进行支付等功能，而在判断出采集的指纹识别不成功时，不作出响应。
更具体的，将采集的指纹图像与指纹模板中处于第一位置的指纹图像进行匹配的具体方法是，匹配模块304提取采集的指纹图像的多个特征点，并将采集的指纹图像的多个特征点与处于第一位置的指纹图像的多个特征点进行匹配，若与处于第一位置的指纹图像的多个特征点匹配的采集的指纹图像的多个特征点的数量大于第四预设阈值，则判断采集的指纹图像与处于第一位置的指纹图像匹配。
本发明实施例的指纹的识别装置，根据用户先录入的多个指纹图像按照预定的顺序保存在指纹模板中，将采集的指纹图像与指纹模板中的指纹模板按照预定顺序依次进行匹配，进而根据匹配结果判断指纹图像是否识别成功，由此，可以提高指纹识别的正确率，在满足用户使用便捷性的同时，提高指纹密码的安全性。
图4为根据本发明一个具体实施例的指纹的识别装置的结构示意图。
如图4所示，指纹的识别装置包括：第一采集模块301、生成模块302、第二采集模块303、匹配模块304、调整模块305、第一判断模块306和第二判断模块307。
其中，调整模块305用于根据采集的指纹图像与指纹模板中的指纹图像的匹配成功的次数将第一匹配顺序调整为第二匹配顺序。其中，调整模块305记录指纹模板中指纹图像的匹配成功的次数，并按照匹配成功的次数由高到低的顺序对所指纹模板中的指纹图像进行排序，将排序后的顺序作为第二匹配顺序。若判断指纹模板中的两个指纹图像的匹配成功的次数相同，则调整模块305进一步根据匹配频率对匹配成功次数相同的指纹图像进行排序。
具体而言，终端设备中都保存有指纹模板中的每个指纹图像被匹配成功的次数，匹配模块304在将采集的指纹图像与指纹模板进行匹配时，当采集的指纹图像与指纹模板序列中的一个指纹图像匹配时，将该指纹图像的匹配成功的次数增加一次。进而，调整模块305根据每个指纹图像的匹配成功的次数的高低对指纹模板中的指纹图像重新进行排序，将匹配成功次数高的指纹图像放到指纹模板中的靠前的位置。
换言之，调整模块305将匹配成功的次数最高的指纹图像排在指纹模板中的最前面的位置，将匹配成功的次数第二高的指纹图像排在指纹模板中的第二前面的位置，进而生成按照第二匹配顺序排列的指纹图像的指纹模板。进而，在匹配模块304将采集的指纹图像
与指纹模板进行匹配时，就能够首先跟匹配成功次数最高的几个指纹图像进行匹配从而快速的对采集的指纹图像进行识别。
在本发明的一个实施例中，触发调整模块305对指纹模板中的指纹图像进行重新排序的条件可以为多个。因此，指纹识别装置还可以包括第一判断模块306和第二判断模块307。
其中，第一判断模块306用于判断采集的指纹图像的采集次数是否超过第一预设阈值，若采集次数超过第一预设阈值，则调整模块根据采集的指纹图像与指纹模板中的指纹图像的匹配成功的次数将第一匹配顺序调整为第二匹配顺序。具体而言，第一判断模块306记录用户进行指纹识别时采集的指纹图像的采集次数，判断采集指纹图像的采集次数是否超过第一预设阈值，例如50次，如果超过第一预设阈值，则第一判断模块306判断触发调整模块305对指纹模板中指纹图像的第一匹配顺序的调整，即调整模块305对指纹模板中指纹图像的排序进行调整。
第二判断模块307用于记录指纹模板中处于第一位置的指纹图像的匹配失败的次数，若判断处于第一位置的指纹图像的匹配失败的次数超过第二预设阈值，则调整模块根据采集的指纹图像与指纹模板中的指纹图像的匹配成功的次数将第一匹配顺序调整为第二匹配顺序。具体而言，在匹配模块304进行指纹识别时，必然是将采集的指纹图像先与指纹模板中排序最前面的指纹图像进行匹配，若采集的指纹图像与排序最前面的指纹图像匹配失败，则第二判断模块307记录采集的指纹图像与排序最前面的指纹图像匹配失败的次数，若匹配失败的次数超过第二预设阈值，则说明该指纹图像与采集的指纹图像匹配的成功率并不高，应当将其排序的位置调整至比较靠后的位置，此时第二判断模块307判断触发调整模块305对指纹模板中指纹图像的第一匹配顺序的调整，即对指纹模板中指纹图像的排序进行调整。
本发明实施例的指纹的识别装置，根据指纹模板中指纹图像的匹配成功的次数调整指纹图像在指纹模板中的排序，从而可以有效的缩短指纹识别的识别时间，并且随着用户进行指纹识别的次数的增多，指纹模板中指纹图像的匹配频率的分配也就越清晰，指纹模板中指纹图像的排序也就更科学，因此指纹识别的识别时间就越快。
为了实现上述实施例，本发明还提出了一种终端设备，包括本发明实施例的指纹识别装置。
本发明实施例的终端设备，根据用户先录入的多个指纹图像按照预定的顺序保存在指纹模板中，将采集的指纹图像与指纹模板中的指纹模板按照预定顺序依次进行匹配，进而根据匹配结果判断指纹图像是否识别成功，由此，可以提高指纹识别的正确率，在满足用户使用便捷性的同时，提高指纹密码的安全性。
进而，根据指纹模板中指纹图像的匹配成功的次数调整指纹图像在指纹模板中的排序，
从而可以有效的缩短指纹识别的识别时间，并且随着用户进行指纹识别的次数的增多，指纹模板中指纹图像的匹配频率的分配也就越清晰，指纹模板中指纹图像的排序也就更科学，因此指纹识别的识别时间就越快。
应当理解，本发明的各部分可以用硬件、软件、固件或它们的组合来实现。在上述实施方式中，多个步骤或方法可以用存储在存储器中且由合适的指令执行系统执行的软件或固件来实现。例如，如果用硬件来实现，和在另一实施方式中一样，可用本领域公知的下列技术中的任一项或他们的组合来实现：具有用于对数据信号实现逻辑功能的逻辑门电路的离散逻辑电路，具有合适的组合逻辑门电路的专用集成电路，可编程门阵列(PGA)，现场可编程门阵列(FPGA)等。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。
Claims (19)
- 一种指纹识别方法，其特征在于，包括以下步骤：采集预先录入的多个指纹图像，并根据所述多个指纹图像组成指纹模板，其中，所述多个指纹图像在所述指纹模板中按第一匹配顺序进行排序；在进行指纹识别时，采集指纹图像；将采集的指纹图像与所述指纹模板中的多个指纹图像按照所述第一匹配顺序进行匹配，并根据匹配结果判断所述采集的指纹图像是否识别成功。
- 如权利要求1所述的指纹识别方法，其特征在于，在根据匹配结果判断所述采集的指纹图像是否识别成功之后，还包括：根据所述采集的指纹图像与所述指纹模板中的指纹图像的匹配成功的次数将所述第一匹配顺序调整为第二匹配顺序。
- 如权利要求1或2所述的指纹识别方法，其特征在于，根据所述采集的指纹图像与所述指纹模板中的指纹图像的匹配成功的次数将所述第一匹配顺序调整为第二匹配顺序具体包括：记录所述指纹模板中指纹图像的匹配成功的次数；按照所述匹配成功的次数由高到低的顺序对所所述指纹模板中的指纹图像进行排序，将排序后的顺序作为所述第二匹配顺序。
- 如权利要求1-3任一项所述的指纹识别方法，其特征在于，还包括：若判断所述指纹模板中的两个指纹图像的匹配成功的次数相同，则进一步根据匹配频率对所述匹配成功次数相同的指纹图像进行排序。
- 如权利要求1-4任一项所述的指纹识别方法，其特征在于，还包括：判断所述采集的指纹图像的采集次数是否超过第一预设阈值，若所述采集次数超过第一预设阈值，则根据所述采集的指纹图像与所述指纹模板中的指纹图像的匹配成功的次数将所述第一匹配顺序调整为第二匹配顺序。
- 如权利要求1-5任一项所述的指纹识别方法，其特征在于，还包括：记录所述指纹模板中处于第一位置的指纹图像的匹配失败的次数，若所述处于第一位置的指纹图像的匹配失败的次数超过第二预设阈值，则根据所述采集的指纹图像与所述指纹模板中的指纹图像的匹配成功的次数将所述第一匹配顺序调整为第二匹配顺序。
- 如权利要求1-6任一项所述的指纹识别方法，其特征在于，将采集的指纹图像与所述指纹模板中的多个指纹图像按照所述第一匹配顺序进行匹配具体包括：将采集的指纹图像与所述指纹模板中处于第一位置的指纹图像进行匹配，若匹配成功， 则记录所述采集的指纹图像对应的匹配成功的次数，并判断所述匹配成功的次数是否超过第三预设阈值，若未超过所述第三预设阈值，则进一步将所述采集的指纹图像与所述指纹模板中处于第二位置的指纹图像进行匹配；若超过所述第三预设阈值，则判断所述采集的指纹图像识别成功。
- 如权利要求1-7任一项所述的指纹识别方法，其特征在于，将采集的指纹图像与所述指纹模板中处于第一位置的指纹图像进行匹配具体包括：提取所述采集的指纹图像的多个特征点，并将所述采集的指纹图像的多个特征点与所述处于第一位置的指纹图像的多个特征点进行匹配，若与所述处于第一位置的指纹图像的多个特征点匹配的所述采集的指纹图像的多个特征点的数量大于第四预设阈值，则判断所述采集的指纹图像与所述处于第一位置的指纹图像匹配。
- 一种指纹识别装置，其特征在于，包括：第一采集模块，采集预先录入的多个指纹图像；生成模块，用于根据所述多个指纹图像组成指纹模板，其中，所述多个指纹图像在所述指纹模板中按第一匹配顺序进行排序；第二采集模块，用于在进行指纹识别时，采集指纹图像；匹配模块，用于将采集的指纹图像与所述指纹模板中的多个指纹图像按照所述第一匹配顺序进行匹配，并根据匹配结果判断所述采集的指纹图像是否识别成功。
- 如权利要求9所述的指纹识别装置，其特征在于，还包括：调整模块，用于根据所述采集的指纹图像与所述指纹模板中的指纹图像的匹配成功的次数将所述第一匹配顺序调整为第二匹配顺序。
- 如权利要求9或10所述的指纹识别装置，其特征在于，所述调整模块具体用于：记录所述指纹模板中指纹图像的匹配成功的次数；按照所述匹配成功的次数由高到低的顺序对所所述指纹模板中的指纹图像进行排序，将排序后的顺序作为所述第二匹配顺序。
- 如权利要求9-11任一项所述的指纹识别装置，其特征在于，所述调整模块还用于：若判断所述指纹模板中的两个指纹图像的匹配成功的次数相同，则进一步根据匹配频率对所述匹配成功次数相同的指纹图像进行排序。
- 如权利要求9-12任一项所述的指纹识别装置，其特征在于，还包括：第一判断模块，用于判断所述采集的指纹图像的采集次数是否超过第一预设阈值，若所述采集次数超过第一预设阈值，则所述调整模块根据所述采集的指纹图像与所述指纹模板中的指纹图像的匹配成功的次数将所述第一匹配顺序调整为第二匹配顺序。
- 如权利要求9-12任一项所述的指纹识别装置，其特征在于，还包括：第二判断模块，用于记录所述指纹模板中处于第一位置的指纹图像的匹配失败的次数，若判断所述处于第一位置的指纹图像的匹配失败的次数超过第二预设阈值，则所述调整模块根据所述采集的指纹图像与所述指纹模板中的指纹图像的匹配成功的次数将所述第一匹配顺序调整为第二匹配顺序。
- 如权利要求9-14任一项所述的指纹识别装置，其特征在于，所述匹配模块具体用于：将采集的指纹图像与所述指纹模板中处于第一位置的指纹图像进行匹配，若匹配成功，则记录所述采集的指纹图像对应的匹配成功的次数，并判断所述匹配成功的次数是否超过第三预设阈值，若未超过所述第三预设阈值，则进一步将所述采集的指纹图像与所述指纹模板中处于第二位置的指纹图像进行匹配；若超过所述第三预设阈值，则判断所述采集的指纹图像识别成功。
- 如权利要求9-15任一项所述的指纹识别装置，其特征在于，所述匹配模块还用于：提取所述采集的指纹图像的多个特征点，并将所述采集的指纹图像的多个特征点与所述处于第一位置的指纹图像的多个特征点进行匹配，若与所述处于第一位置的指纹图像的多个特征点匹配的所述采集的指纹图像的多个特征点的数量大于第四预设阈值，则判断所述采集的指纹图像与所述处于第一位置的指纹图像匹配。
- 一种终端设备，其特征在于，包括如权利要求9-16任一项所述的指纹识别装置。
- 一种终端设备，包括：一个或者多个处理器；存储器；一个或者多个程序，所述一个或者多个程序存储在所述存储器中，当被所述一个或者多个处理器执行时，执行以下步骤：采集预先录入的多个指纹图像，并根据所述多个指纹图像组成指纹模板，其中，所述多个指纹图像在所述指纹模板中按第一匹配顺序进行排序；在进行指纹识别时，采集指纹图像；将采集的指纹图像与所述指纹模板中的多个指纹图像按照所述第一匹配顺序进行匹配，并根据匹配结果判断所述采集的指纹图像是否识别成功。
- 一种非易失性计算机存储介质，所述计算机存储介质存储有一个或者多个程序，当所述一个或者多个程序被一个设备执行时，使得所述设备执行以下步骤：采集预先录入的多个指纹图像，并根据所述多个指纹图像组成指纹模板，其中，所述多个指纹图像在所述指纹模板中按第一匹配顺序进行排序；在进行指纹识别时，采集指纹图像；将采集的指纹图像与所述指纹模板中的多个指纹图像按照所述第一匹配顺序进行匹配，并根据匹配结果判断所述采集的指纹图像是否识别成功。
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| CN105469033A (zh) | 2016-04-06 |
| CN105469033B (zh) | 2018-04-17 |
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