WO2017016026A1 - 一种指纹验证方法和装置 - Google Patents

一种指纹验证方法和装置 Download PDF

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Publication number
WO2017016026A1
WO2017016026A1 PCT/CN2015/088473 CN2015088473W WO2017016026A1 WO 2017016026 A1 WO2017016026 A1 WO 2017016026A1 CN 2015088473 W CN2015088473 W CN 2015088473W WO 2017016026 A1 WO2017016026 A1 WO 2017016026A1
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Prior art keywords
fingerprint
collection
verification
dimensional
fingerprint collection
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French (fr)
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梁文栋
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06V40/1376—Matching features related to ridge properties or fingerprint texture

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a fingerprint verification method and apparatus.
  • the existing fingerprint verification is mostly static fingerprint verification, and the user's two-dimensional fingerprint is verified, that is, the static two-dimensional fingerprint model is first stored in the terminal; then the user inputs his fingerprint on the fingerprint collection device provided by the terminal; The terminal collects the fingerprint input by the user and compares it with the fingerprint model in the terminal to identify whether the input fingerprint and the fingerprint model are the same. If they are the same, the verification passes, and if they are different, the verification fails.
  • the main object of the present invention is to provide a fingerprint verification method and apparatus to solve the information security problem caused by static two-dimensional fingerprint leakage in the prior art.
  • the present invention provides a fingerprint verification method, including: setting a plurality of fingerprint collection trajectories; detecting fingerprints moving on the plurality of fingerprint collection trajectories at the same time; and collecting fingerprint movement information on the plurality of fingerprint collection trajectories;
  • the fingerprint motion information performs a matching verification process to determine whether there is a fingerprint motion model that matches the fingerprint motion information, and if so, the verification passes, and vice versa, the verification fails.
  • the setting a plurality of fingerprint collection trajectories includes: setting a plurality of fingerprint collection trajectories according to the pre-generated fingerprint movement model; and performing a matching verification process on the fingerprint motion information, including: determining whether the fingerprint motion information is related to the advance The generated fingerprint motion model matches, if it is, then Verification passed, and vice versa, verification failed.
  • the step of generating a fingerprint motion model in advance includes: setting a plurality of fingerprint collection trajectories for generating a fingerprint motion model; and acquiring, in the pre-stored three-dimensional fingerprint database, a three-dimensional fingerprint corresponding to each fingerprint collection trajectory; The fingerprint collection trajectory and the three-dimensional fingerprint corresponding to each fingerprint collection trajectory generate the fingerprint motion model.
  • setting a plurality of fingerprint collection trajectories comprises: selecting one of the fingerprint movement models in the plurality of pre-generated fingerprint movement models; and selecting a plurality of fingerprints according to the selected fingerprint movement model Collect tracks and set up multiple fingerprint acquisition tracks.
  • the method further includes: setting a corresponding three-dimensional fingerprint for each fingerprint collection trajectory; and acquiring each of the pre-stored three-dimensional fingerprint databases.
  • a three-dimensional fingerprint corresponding to the fingerprint collection trajectory generating a fingerprint motion model based on the plurality of fingerprint collection trajectories and the three-dimensional fingerprint corresponding to each fingerprint collection trajectory.
  • the invention also provides a fingerprint verification device, comprising: a setting module, configured to set a plurality of fingerprint collection tracks; a detection module, configured to detect a fingerprint moving on the plurality of fingerprint collection tracks at the same time; and an acquisition module, configured to: Collecting fingerprint motion information on the plurality of fingerprint collection trajectories; the verification module is configured to perform a matching verification process on the fingerprint motion information to determine whether there is a fingerprint motion model that matches the fingerprint motion information, and if so, Verification passed, and vice versa, verification failed.
  • a fingerprint verification device comprising: a setting module, configured to set a plurality of fingerprint collection tracks; a detection module, configured to detect a fingerprint moving on the plurality of fingerprint collection tracks at the same time; and an acquisition module, configured to: Collecting fingerprint motion information on the plurality of fingerprint collection trajectories; the verification module is configured to perform a matching verification process on the fingerprint motion information to determine whether there is a fingerprint motion model that matches the fingerprint motion information, and if so, Verification passed
  • the setting module is configured to set a plurality of fingerprint collection trajectories according to the pre-generated fingerprint movement model; and the verification module is configured to determine whether the fingerprint motion information matches the pre-generated fingerprint motion model, If yes, the verification passes, otherwise, the verification fails.
  • the device further includes: a generating module; the generating module is configured to: set a plurality of fingerprint collecting trajectories for generating a fingerprint motion model; and acquire a three-dimensional fingerprint corresponding to each fingerprint collecting trajectory in the pre-stored three-dimensional fingerprint database; The fingerprint motion model is generated based on the plurality of fingerprint collection trajectories and the three-dimensional fingerprint corresponding to each fingerprint collection trajectory.
  • the setting module is specifically configured to: select one of the fingerprint motion models in the plurality of fingerprint motion models generated in advance; and set multiple fingerprint collection tracks according to the plurality of fingerprint collection tracks in the selected fingerprint motion model. .
  • the generating module is configured to: after setting a plurality of fingerprint collection tracks, and to the fingers Before performing the matching verification process on the motion information, set a corresponding three-dimensional fingerprint for each fingerprint collection track; in the pre-stored three-dimensional fingerprint database, acquire a three-dimensional fingerprint corresponding to each fingerprint collection track; based on the multiple fingerprint collection tracks, and A fingerprint movement model is generated by acquiring a three-dimensional fingerprint corresponding to each fingerprint.
  • the invention performs dynamic multi-fingerprint verification on the user, that is, the trajectory of the continuous movement of the fingerprint and the change of the fingerprint on each trajectory.
  • the invention can effectively improve the accuracy of fingerprint verification and improve information security.
  • FIG. 1 is a flow chart of a fingerprint verification method according to a first embodiment of the present invention
  • FIG. 2 is a flow chart of a fingerprint verification method according to a second embodiment of the present invention.
  • FIG. 3 is a schematic diagram showing the setting of a fingerprint collection track according to a second embodiment of the present invention.
  • FIG. 4 is a flow chart of a fingerprint verification method according to a third embodiment of the present invention.
  • Figure 5 is a structural diagram of a fingerprint verification apparatus according to a fifth embodiment of the present invention.
  • the main idea of the present invention is to perform dynamic multi-fingerprint verification on the user, that is, to verify the trajectory of the continuous movement of the fingerprint and the change of the fingerprint on each trajectory.
  • the invention can effectively improve the accuracy of fingerprint verification and improve information security. Users only need to follow the prompts to slide a few fingers on the user interface, and the fingerprint verification can be easily completed. The verification is simple and easy, and the user experience is good.
  • the present invention takes into account the flexibility of the human finger joint, enables multiple fingers to cooperate in parallel movement on multiple fingerprint collection tracks, and in the process, collects dynamic change information of multiple fingerprints, and dynamically changes the fingerprint. The information is verified. This method can effectively avoid the problem that the robot carrying the two-dimensional fingerprint of the legitimate user imitates the fingerprint verification by the legitimate user.
  • a fingerprint verification method is provided. As shown in FIG. 1, it is a flowchart of a fingerprint verification method according to a first embodiment of the present invention.
  • Step S110 setting a plurality of fingerprint collection tracks.
  • the user interface of the terminal can display multiple fingerprint collection tracks set.
  • the user collects trajectories according to multiple fingerprints, inputs fingerprints of multiple fingers, and continuously moves in parallel on the fingerprint collection trajectory.
  • the plurality of trajectories designed or downloaded by the user may be set as multiple fingerprint collection trajectories; or, according to the pre-generated fingerprint movement model, multiple fingerprint collection trajectories may be set. among them,
  • the fingerprint movement model includes: a plurality of fingerprint collection trajectories, a three-dimensional fingerprint corresponding to each fingerprint collection trajectory, and fingerprint change information formed by continuous movement of the plurality of three-dimensional fingerprints on the corresponding fingerprint collection trajectories respectively.
  • This fingerprint change information is referred to as fingerprint motion information.
  • the fingerprint movement information may reflect the two-dimensional fingerprint formed by the three-dimensional fingerprint pressing on the fingerprint collection trajectory and the change information of the two-dimensional fingerprint formed when the three-dimensional fingerprint moves on the fingerprint collection trajectory. For example, the dip feature value of the two-dimensional fingerprint during exercise.
  • the three-dimensional fingerprint is a three-dimensional fingerprint of a legitimate user. Compared with the planar two-dimensional fingerprint (hereinafter referred to as the two-dimensional fingerprint as a fingerprint), the three-dimensional fingerprint can better reflect the overall information of the finger fingerprint, making the verification result more accurate, and the three-dimensional fingerprint is not easy to leak.
  • the three-dimensional fingerprint corresponding to multiple fingerprint collection trajectories in the fingerprint motion model should belong to a legitimate user.
  • the legal user is the owner of the terminal; for example, the home subscriber of the mobile terminal.
  • Step S120 detecting a fingerprint that moves on multiple fingerprint collection tracks at the same time.
  • step S130 it is detected in real time whether there is fingerprint input on multiple fingerprint collection tracks at the same time, and if so, step S130 is performed; if not, the detection is continued.
  • Step S130 collecting fingerprint motion information on multiple fingerprint collection tracks.
  • Fingerprint motion information means that fingerprints of multiple fingers of the same user are on multiple fingerprint collection tracks. Fingerprint change information during parallel motion.
  • the terminal can sense the fingerprint input by the user, and when the plurality of fingers of the user perform parallel motion on the plurality of fingerprint collection tracks, the terminal can collect fingerprint change information of all the fingers.
  • the two-dimensional fingerprint changes with the finger angle.
  • the fingerprint input simultaneously is continuously moved on the multiple fingerprint collection trajectories.
  • the change information of the time that is, the fingerprint motion information, can reflect the unique fingerprint characteristics of the user.
  • Step S140 performing matching verification processing on the fingerprint motion information to determine whether there is a fingerprint motion model matching the fingerprint motion information, and if yes, executing step S150; if not, executing step S160.
  • Performing matching verification processing on the fingerprint motion information that is, determining whether the collected fingerprint motion information and the fingerprint motion information in the fingerprint motion model match. If the two are matched, the similarity between the collected fingerprint motion information and the fingerprint motion information in the fingerprint motion model may be calculated. If the similarity is greater than the similarity threshold, the collected fingerprint motion information and the fingerprint in the fingerprint motion model are determined. The motion information matches; otherwise, it does not match.
  • a plurality of fingerprint collection trajectories are set according to the pre-generated fingerprint movement model, when the matching verification processing is performed on the collected fingerprint motion information, it is determined whether the fingerprint motion information matches the pre-generated fingerprint motion model, and if so, the verification is performed. Pass, on the contrary, the verification does not pass.
  • the fingerprints are generated according to the set multiple fingerprint collection trajectories and the legal user's three-dimensional fingerprints.
  • the motion model is configured to perform matching verification on the collected fingerprint motion information and the fingerprint motion information in the fingerprint motion model.
  • step S150 the verification is passed.
  • the verification is passed, indicating that the authenticated user is a legitimate user.
  • step S160 the verification fails.
  • the unauthenticated user is an illegal user. If the verification fails, an alert can be issued.
  • the safety of the embodiment is high, and only the flexible finger joints of the human body can cooperate with each other. Continuous movement on multiple fingerprint acquisition trajectories, the robot will not be able to imitate the real human hand movement, and make continuous motion on multiple fingerprint collection trajectories.
  • FIG. 2 it is a flowchart of a fingerprint verification method according to a second embodiment of the present invention.
  • Step S210 setting a plurality of fingerprint collection tracks for generating a fingerprint motion model.
  • the setting of the plurality of fingerprint collection tracks is not the setting of the plurality of fingerprint collection tracks in step S110.
  • This step sets multiple fingerprint collection tracks to generate a fingerprint motion module.
  • the plurality of fingerprint collection tracks are ergonomically designed, that is, the user's fingers can easily draw out the plurality of fingerprint collection tracks. Therefore, when setting the fingerprint collection track, it is necessary to set a corresponding three-dimensional fingerprint for each fingerprint collection track.
  • the fingerprint collection track on the left side is corresponding to the index finger
  • the middle fingerprint collection track corresponds to the middle finger
  • the right side is on the right side.
  • the fingerprint collection track corresponds to the ring finger.
  • Step S220 Acquire a three-dimensional fingerprint corresponding to each fingerprint collection trajectory in the pre-stored three-dimensional fingerprint database.
  • the three-dimensional fingerprints of all the fingers of the legitimate user are collected in advance; and all the three-dimensional fingerprints are stored in the three-dimensional fingerprint database.
  • the corresponding three-dimensional fingerprint is obtained in the three-dimensional fingerprint database.
  • Step S230 Generate a fingerprint motion model based on the plurality of fingerprint collection trajectories and the three-dimensional fingerprint corresponding to each fingerprint collection trajectory, and store the fingerprint motion model in the fingerprint motion model library.
  • the three-dimensional fingerprint corresponding to each fingerprint acquisition trajectory is used to simulate the hand and finger movements when multiple human fingers move in parallel on the corresponding fingerprint collection trajectory. Further, the acquired plurality of three-dimensional fingerprints are simultaneously input into the corresponding fingerprint collection trajectories, and continuously moved according to the fingerprint collection trajectory, and the change information of each three-dimensional fingerprint during the continuous movement process is recorded. Change letter of multiple 3D fingerprints Information, as the fingerprint motion information in the fingerprint motion model.
  • the generated fingerprint motion model is stored in the fingerprint motion model library, and is used when the fingerprint collection track is set. For more information security, multiple fingerprint motion models can be generated in advance.
  • Step S240 setting a plurality of fingerprint collection tracks based on the fingerprint motion model selected in the fingerprint motion model library.
  • one of the fingerprint motion models is selected; and a plurality of fingerprint collection tracks are set according to the plurality of fingerprint collection tracks in the selected fingerprint motion model. Further, according to the shape and size of the plurality of fingerprint collection trajectories, a plurality of fingerprint collection trajectories identical to the plurality of trajectories are set in the user interface.
  • multiple fingerprint collection tracks set in the user interface are also shown in FIG. 3, and the fingers corresponding to each fingerprint collection track are displayed, so that the user inputs the fingerprint of the correct finger.
  • Step S250 after collecting the fingerprint motion information, determining whether the fingerprint motion information and the selected fingerprint motion model match. If yes, go to step S260; if no, go to step S270.
  • the similarity between the fingerprint motion information simulated by the 3D fingerprint of the legitimate user and the fingerprint motion information obtained by the legitimate user's real finger motion should be greater than the similarity threshold.
  • the similarity threshold may be a value obtained by a large number of experiments, or an empirical value.
  • step S260 the verification is passed.
  • step S270 the verification fails.
  • the fingerprint motion model may also be generated after the fingerprint collection track is set and before the matching verification. This embodiment is further described for the manner. As shown in FIG. 4, it is a flowchart of a fingerprint verification method according to a third embodiment of the present invention.
  • Step S410 setting a plurality of fingerprint collection tracks.
  • Setting a plurality of fingerprint collection tracks in this step is equivalent to setting a plurality of fingerprint collection tracks in step S110.
  • multiple fingerprint collection tracks are set in the user interface.
  • Users can design or download multiple tracks according to their own interests to increase the fun of fingerprint verification. Users can also design or download tracks that other users can't imitate according to the characteristics of their own fingers, increase the difficulty of fingerprint verification, and further prompt information security.
  • Step S420 setting a corresponding three-dimensional fingerprint for each fingerprint collection track.
  • While setting a plurality of fingerprint collection tracks set a finger (three-dimensional fingerprint) corresponding to each fingerprint collection track. For example, the user may be prompted to set a finger corresponding to each fingerprint collection track, and the user selects a corresponding finger for each fingerprint collection track in the multiple finger information given, and the setting is completed.
  • Step S430 Acquire a three-dimensional fingerprint corresponding to each fingerprint collection trajectory in the pre-stored three-dimensional fingerprint database.
  • Step S440 generating a fingerprint motion model based on the plurality of fingerprint collection trajectories and the three-dimensional fingerprint corresponding to each fingerprint collection trajectory, and storing the fingerprint motion model in the fingerprint motion model library.
  • This step needs to be completed before performing the matching verification process.
  • the three-dimensional fingerprint corresponding to each fingerprint acquisition trajectory is used to simulate the movement of the hand and the finger when the plurality of human fingers move in parallel on the corresponding fingerprint collection trajectory. Further, the acquired plurality of three-dimensional fingerprints are simultaneously input into the corresponding fingerprint collection, and continuously moved according to the fingerprint collection trajectory, and the change information of each three-dimensional fingerprint during the continuous movement process is recorded. The change information of the plurality of three-dimensional fingerprints is used as the fingerprint motion information in the fingerprint motion model.
  • Step S450 after collecting the fingerprint motion information, determining whether the collected fingerprint motion information and the fingerprint motion model match. If yes, go to step S460; if no, go to step S470.
  • step S460 the verification is passed.
  • step S470 the verification fails.
  • This embodiment describes the display and sensing position of the fingerprint collection track.
  • the sensing position of each fingerprint collection track that is, the input position of the user fingerprint is indicated.
  • three fingerprint collection tracks are displayed in the user interface, corresponding to the thumb, the index finger and the middle finger respectively.
  • the sensing position of the thumb is on the user interface, and the user's thumb needs to move along the fingerprint collection track on the user interface, and the sensing position of the index finger and the middle finger is On the terminal backplane, the user needs to input the thumb fingerprint and the index finger and the middle finger fingerprint on the terminal back panel according to the position indicated by the index finger and the middle finger respectively corresponding to the fingerprint collection track.
  • the present embodiment provides a fingerprint verification apparatus, as shown in FIG. 5, which is a structural diagram of a fingerprint verification apparatus according to a fifth embodiment of the present invention.
  • the device includes:
  • the setting module 510 is configured to set a plurality of fingerprint collection tracks.
  • the detecting module 520 is configured to detect a fingerprint that moves on the plurality of fingerprint collection tracks at the same time.
  • the collecting module 530 is configured to collect fingerprint motion information on the plurality of fingerprint collection tracks.
  • the verification module 540 is configured to perform a matching verification process on the fingerprint motion information to determine whether there is a fingerprint motion model that matches the fingerprint motion information, and if yes, the verification passes, and vice versa, the verification fails.
  • the device further includes a generating module (not shown); the generating module is configured to set a plurality of fingerprint collecting tracks; and in the pre-stored three-dimensional fingerprint database, acquiring three-dimensional corresponding to each fingerprint collecting track a fingerprint; generating the fingerprint motion model based on the plurality of fingerprint collection trajectories and a three-dimensional fingerprint corresponding to each fingerprint collection trajectory.
  • a generating module is configured to set a plurality of fingerprint collecting tracks; and in the pre-stored three-dimensional fingerprint database, acquiring three-dimensional corresponding to each fingerprint collecting track a fingerprint; generating the fingerprint motion model based on the plurality of fingerprint collection trajectories and a three-dimensional fingerprint corresponding to each fingerprint collection trajectory.
  • the setting module 510 is configured to set a plurality of fingerprint collection tracks according to a pre-generated fingerprint motion model. Further, the setting module 510 is specifically configured to: perform multiple fingerprint movements in advance In the model, one of the fingerprint motion models is selected; and a plurality of fingerprint collection trajectories are set according to the plurality of fingerprint collection trajectories in the selected fingerprint motion model.
  • the verification module 540 is configured to determine whether the fingerprint motion information matches the pre-generated fingerprint motion model, and if yes, the verification passes, and vice versa, the verification fails.
  • the generating module is configured to: after setting a plurality of fingerprint collection trajectories and performing a matching verification process on the fingerprint motion information, set a corresponding three-dimensional fingerprint for each fingerprint collection trajectory;
  • the three-dimensional fingerprint database acquires a three-dimensional fingerprint corresponding to each fingerprint collection trajectory; and generates a fingerprint motion model based on the plurality of fingerprint collection trajectories and the three-dimensional fingerprint corresponding to each fingerprint collection trajectory.
  • the fingerprint verification device is applied to the terminal.
  • the terminal is, for example, a mobile phone, a tablet, or the like.
  • the terminal performs ergonomic-based multi-fingerprint verification on the user based on the fingerprint verification device described above.

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Abstract

本发明公开了一种指纹验证方法和装置。该方法包括：设置多条指纹采集轨迹；检测同时在所述多条指纹采集轨迹上运动的指纹；采集所述多条指纹采集轨迹上的指纹运动信息；对所述指纹运动信息执行匹配验证处理，以判断是否存在与所述指纹运动信息相匹配的指纹运动模型，若是，则验证通过，反之，验证不通过。本发明对用户进行动态地多指纹验证，即对指纹连续运动的轨迹、以及在每个轨迹上指纹的变化进行验证。通过本发明可以有效提高指纹验证的准确性，提升信息安全性。

Description

一种指纹验证方法和装置 技术领域
本发明涉及通信技术领域，尤其涉及一种指纹验证方法和装置。
背景技术
现有的指纹验证多是静态指纹验证，且验证的是用户的二维指纹，即先在终端中存放静态的二维的指纹模型；然后用户在终端提供的指纹采集装置上输入自己的指纹；终端采集用户输入的指纹，并将其与终端中的指纹模型进行比对，识别输入的指纹和指纹模型是否相同，如果相同，则验证通过，如果不同，则验证不通过。
因为在生活中静态的二维指纹非常容易泄露，非法用户可以复制、利用用户的指纹，达到自己的非法目的，引发信息安全问题。
发明内容
本发明的主要目的在于提供一种指纹验证方法和装置，以解决现有技术中静态的二维指纹泄露，而引发的信息安全问题。
针对上述技术问题，本发明是通过以下技术方案来解决的。
本发明提供了一种指纹验证方法，包括：设置多条指纹采集轨迹；检测同时在所述多条指纹采集轨迹上运动的指纹；采集所述多条指纹采集轨迹上的指纹运动信息；对所述指纹运动信息执行匹配验证处理，以判断是否存在与所述指纹运动信息相匹配的指纹运动模型，若是，则验证通过，反之，验证不通过。
其中，设置多条指纹采集轨迹，包括：根据预先生成的指纹运动模型，设置多条指纹采集轨迹；对所述指纹运动信息执行匹配验证处理，包括：判断所述指纹运动信息是否与所述预先生成的指纹运动模型相匹配，若是，则 验证通过，反之，验证不通过。
其中，预先生成指纹运动模型的步骤，包括：设置用于生成指纹运动模型的多条指纹采集轨迹；在预存的三维指纹库中，获取每条指纹采集轨迹对应的三维指纹；基于所述多条指纹采集轨迹、以及每条指纹采集轨迹对应的三维指纹，生成所述指纹运动模型。
其中，根据预先生成的指纹运动模型，设置多条指纹采集轨迹，包括：在预先生成的多个指纹运动模型中，选取其中一个指纹运动模型；根据选取的所述指纹运动模型中的多条指纹采集轨迹，设置多条指纹采集轨迹。
其中，在设置多条指纹采集轨迹之后，且对所述指纹运动信息执行匹配验证处理之前，还包括：为每条指纹采集轨迹设置对应的三维指纹；在预存的三维指纹库中，获取每条指纹采集轨迹对应的三维指纹；基于所述多条指纹采集轨迹、以及每条指纹采集轨迹对应的三维指纹，生成指纹运动模型。
本发明还提供了一种指纹验证装置，包括：设置模块，用于设置多条指纹采集轨迹；检测模块，用于检测同时在所述多条指纹采集轨迹上运动的指纹；采集模块，用于采集所述多条指纹采集轨迹上的指纹运动信息；验证模块，用于对所述指纹运动信息执行匹配验证处理，以判断是否存在与所述指纹运动信息相匹配的指纹运动模型，若是，则验证通过，反之，验证不通过。
其中，所述设置模块，用于根据预先生成的指纹运动模型，设置多条指纹采集轨迹；所述验证模块，用于判断所述指纹运动信息是否与所述预先生成的指纹运动模型相匹配，若是，则验证通过，反之，验证不通过。
其中，所述装置还包括生成模块；所述生成模块用于：设置用于生成指纹运动模型的多条指纹采集轨迹；在预存的三维指纹库中，获取每条指纹采集轨迹对应的三维指纹；基于所述多条指纹采集轨迹、以及每条指纹采集轨迹对应的三维指纹，生成所述指纹运动模型。
其中，所述设置模块具体用于：在预先生成的多个指纹运动模型中，选取其中一个指纹运动模型；根据选取的所述指纹运动模型中的多条指纹采集轨迹，设置多条指纹采集轨迹。
其中，所述生成模块用于：在设置多条指纹采集轨迹之后，且对所述指 纹运动信息执行匹配验证处理之前，为每条指纹采集轨迹设置对应的三维指纹；在预存的三维指纹库中，获取每条指纹采集轨迹对应的三维指纹；基于所述多条指纹采集轨迹、以及每条指纹采集轨迹对应的三维指纹，生成指纹运动模型。
本发明有益效果如下：
本发明对用户进行动态地多指纹验证，即对指纹连续运动的轨迹、以及在每个轨迹上指纹的变化进行验证。通过本发明可以有效提高指纹验证的准确性，提升信息安全性。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是根据本发明第一实施例的指纹验证方法的流程图；
图2是根据本发明第二实施例的指纹验证方法的流程图；
图3是根据本发明第二实施例的指纹采集轨迹的设置示意图；
图4是根据本发明第三实施例的指纹验证方法的流程图；
图5是根据本发明第五实施例的指纹验证装置的结构图。
具体实施方式
本发明的主要思想在于，对用户进行动态地多指纹验证，即对指纹连续运动的轨迹、以及在每个轨迹上指纹的变化进行验证。通过本发明可以有效提高指纹验证的准确性，提升信息安全性。用户只需按照提示在用户界面上滑动几个手指，就可以轻松完成指纹验证，验证简单易行，用户体验效果好。进一步地，本发明考虑到人类手指关节的灵活性，使多个手指配合在多个指纹采集轨迹上并行运动，并在此过程中，采集多个指纹的动态变化信息，对该动态变化的指纹信息进行验证，这种方法可以有效避免携带合法用户二维指纹的机械手模仿合法用户进行指纹验证的问题。
为使本发明的目的、技术方案和优点更加清楚，以下结合附图及具体实施例，对本发明作进一步地详细说明。
实施例一
根据本发明的实施例，提供了一种指纹验证方法。如图1所示，为根据本发明第一实施例的指纹验证方法的流程图。
步骤S110，设置多条指纹采集轨迹。
终端的用户界面可以显示设置的多条指纹采集轨迹。用户按照多条指纹采集轨迹，输入多个手指的指纹，且并行地在指纹采集轨迹上连续运动。
在设置指纹采集轨迹时，可以将用户设计的或下载的多条轨迹，设置成多条指纹采集轨迹；或者，根据预先生成的指纹运动模型，设置多条指纹采集轨迹。其中，
指纹运动模型包括：多条指纹采集轨迹、每条指纹采集轨迹对应的三维指纹、以及多个三维指纹分别在对应的指纹采集轨迹上连续运动形成的指纹变化信息。该指纹变化信息被称作指纹运动信息。
指纹运动信息可以反映出三维指纹按压在指纹采集轨迹上形成的二维指纹、以及三维指纹在指纹采集轨迹上运动时形成的二维指纹的变化信息。如：运动过程中二维指纹的倾角特征值。
三维指纹为合法用户的三维立体的指纹。三维指纹相较于平面的二维指纹(以下将二维指纹简称为指纹)更能反映出手指指纹的整体信息，使验证结果更加准确，并且三维指纹不易泄露。
指纹运动模型中的多个指纹采集轨迹分别对应的三维指纹应当同属于一个合法用户。该合法用户是终端的机主；如移动终端的归属用户。
步骤S120，检测同时在多条指纹采集轨迹上运动的指纹。
在用户界面中，实时检测在多条指纹采集轨迹上是否同时有指纹输入，若是，则执行步骤S130；若否，则继续检测。
步骤S130，采集多条指纹采集轨迹上的指纹运动信息。
指纹运动信息是指：同一用户的多个手指的指纹在多条指纹采集轨迹上 并行运动时的指纹变化信息。
终端可以感应到用户输入的指纹，并且用户的多个手指在多条指纹采集轨迹上做并行运动时，终端可以采集到所有手指的指纹变化信息。
进一步地，用户的手指在按照指纹采集轨迹运动时，其二维的指纹会随着手指角度的不同发生变化，在指纹运动的过程中，采集同时输入的指纹在多条指纹采集轨迹上连续运动时的变化信息，即指纹运动信息，可以反映出用户独有的指纹特征规律。
步骤S140，对指纹运动信息执行匹配验证处理，以判断是否存在与该指纹运动信息相匹配的指纹运动模型，若是，则执行步骤S150；若否，则执行步骤S160。
对指纹运动信息执行匹配验证处理，即是判断采集的指纹运动信息和指纹运动模型中的指纹运动信息是否相匹配。判断两者是否相匹配，可以计算采集的指纹运动信息和指纹运动模型中的指纹运动信息的相似度，若该相似度大于相似度阈值，则判定采集的指纹运动信息和指纹运动模型中的指纹运动信息相匹配；反之，不匹配。
如果根据预先生成的指纹运动模型，设置多条指纹采集轨迹，则在对采集的指纹运动信息执行匹配验证处理时，判断该指纹运动信息是否与预先生成的指纹运动模型相匹配，若是，则验证通过，反之，验证不通过。
如果根据用户设计或下载的轨迹，设置多条指纹采集轨迹，则需要在对采集的指纹运动信息执行匹配验证处理之前，先根据设置的多条指纹采集轨迹、以及合法用户的三维指纹，生成指纹运动模型；以便将采集的指纹运动信息和指纹运动模型中的指纹运动信息进行匹配验证。
步骤S150，验证通过。
验证通过，说明该通过验证的用户为合法用户。
步骤S160，验证不通过。
验证不通过，说明该未通过验证的用户为非法用户。在验证不通过的情况下，可以发出告警提示。
本实施例的安全性较高，只有人类灵活的手指关节相互配合，才能够在 多个指纹采集轨迹上连续运动，机械手将无法模仿真实人类的手部运动，在多个指纹采集轨迹上做出连续运动。
实施例二
下面进一步地说明根据预先生成的指纹运动模型，设置多条指纹采集轨迹。如图2所示，为根据本发明第二实施例的指纹验证方法的流程图。
步骤S210，设置用于生成指纹运动模型的多条指纹采集轨迹。
该设置多条指纹采集轨迹并非步骤S110的设置多条指纹采集轨迹。本步骤设置多条指纹采集轨迹，是为了生成指纹运动模块。
该多条指纹采集轨迹符合人体工学设计，即用户的手指可以轻松划出这多条指纹采集轨迹。因此，在设置指纹采集轨迹时，需要为每条指纹采集轨迹设置对应的三维指纹。
如图3所示，设置三条指纹采集轨迹，该三条指纹采集轨迹可以由食指、中指和无名指轻松作出，因此，设置左侧的指纹采集轨迹对应食指，中间的指纹采集轨迹对应中指，右侧的指纹采集轨迹对应无名指。
步骤S220，在预存的三维指纹库中，获取每条指纹采集轨迹对应的三维指纹。
预先采集合法用户的所有手指的三维指纹；并且，将所有三维指纹存储到三维指纹库中。
根据为每条指纹采集轨迹设置的对应的三维指纹，在三维指纹库中，获取相应的三维指纹。
步骤S230，基于所述多条指纹采集轨迹、以及每条指纹采集轨迹对应的三维指纹，生成指纹运动模型，并将其存储到指纹运动模型库中。
利用每条指纹采集轨迹对应的三维指纹，模拟人类多个手指分别在对应的指纹采集轨迹上并行运动时的手部、手指动作。进一步地，将获取的多个三维指纹同时输入对应的指纹采集轨迹，并按照指纹采集轨迹连续移动，记录每个三维指纹在连续移动过程中的变化信息。将多个三维指纹的变化信 息，作为指纹运动模型中的指纹运动信息。
将生成的指纹运动模型存储在指纹运动模型库中，待设置指纹采集轨迹时使用。为了更加信息安全性，可以预先生成多个指纹运动模型。
步骤S240，基于在指纹运动模型库中选取的指纹运动模型，设置多条指纹采集轨迹。
在预先生成的多个指纹运动模型中，选取其中一个指纹运动模型；根据选取的所述指纹运动模型中的多条指纹采集轨迹，设置多条指纹采集轨迹。进一步地，按照多条指纹采集轨迹的形状、大小，在用户界面中，设置与多条运行轨迹相同的多条指纹采集轨迹。
例如：在用户界面中设置的多条指纹采集轨迹也如图3所示，并且显示每条指纹采集轨迹对应的手指，以便用户输入正确手指的指纹。
步骤S250，在采集到指纹运动信息之后，判断该指纹运动信息和选取的指纹运动模型是否相匹配。若是，则执行步骤S260；若否，则执行步骤S270。
合法用户的三维指纹模拟出的指纹运动信息和合法用户真实手指运动得到的指纹运动信息的相似度应大于相似度阈值。该相似度阈值可以是通过大量实验获得的值，或者经验值。
步骤S260，验证通过。
步骤S270，验证不通过。
实施例三
指纹运动模型还可以在设置指纹采集轨迹之后，匹配验证之前生成，本实施例针对该方式进行进一步地说明。如图4所示，为根据本发明第三实施例的指纹验证方法的流程图。
步骤S410，设置多条指纹采集轨迹。
该步骤的设置多条指纹采集轨迹相当于步骤S110中的设置多条指纹采集轨迹。
根据用户设计、下载的多条轨迹，在用户界面中设置多条指纹采集轨迹。
用户可以根据自身的兴趣，自行设计或下载的多条轨迹，以增加指纹验证的趣味性。用户还可以根据自身手指的特点，设计或下载其他用户无法模仿的轨迹，增加指纹验证的破解难度，进一步地提示信息安全性。
步骤S420，为每条指纹采集轨迹设置对应的三维指纹。
在设置多条指纹采集轨迹的同时，设置每条指纹采集轨迹对应的手指(三维指纹)。例如：可以提示用户设置每条指纹采集轨迹对应的手指，用户在给出的多个手指信息中，为每条指纹采集轨迹都选定一个对应的手指，即可完成设置。
步骤S430，在预存的三维指纹库中，获取每条指纹采集轨迹对应的三维指纹。
步骤S440，基于所述多条指纹采集轨迹、以及每条指纹采集轨迹对应的三维指纹，生成指纹运动模型，并将其存储到指纹运动模型库中。
该步骤需要在执行匹配验证处理之前完成。
利用每条指纹采集轨迹对应的三维指纹，模拟人类多个手指分别在对应的指纹采集轨迹上并行运动时手部、手指的动作。进一步地，将获取的多个三维指纹同时输入对应的指纹采集，并按照指纹采集轨迹连续移动，记录每个三维指纹在连续移动过程中的变化信息。将多个三维指纹的变化信息，作为指纹运动模型中的指纹运动信息。
步骤S450，在采集到指纹运动信息之后，判断该采集的指纹运动信息和该指纹运动模型是否相匹配。若是，则执行步骤S460；若否，则执行步骤S470。
步骤S460，验证通过。
步骤S470，验证不通过。
实施例四
本实施例对指纹采集轨迹的显示和感应位置进行说明。
在用户界面中，设置多条指纹采集轨迹。
在用户界面中，显示多条指纹采集轨迹。
在用户界面中显示多条指纹采集轨迹的同时，标示出每条指纹采集轨迹对应的手指，如图3所示。
在用户界面中显示多条指纹采集轨迹的同时，标示出每条指纹采集轨迹的感应位置，即用户指纹的输入位置。
例如：在用户界面中显示三条指纹采集轨迹，分别对应拇指、食指和中指，拇指的感应位置在用户界面上，需要用户的拇指在用户界面上沿指纹采集轨迹移动，食指和中指的感应位置在终端背板上，需要用户在输入拇指指纹的同时，在终端背板上，按照食指和中指分别对应指纹采集轨迹指示出的位置，输入食指指纹和中指指纹。
实施例五
本实施例提供了一种指纹验证装置，如图5所示，为根据本发明第五实施例的指纹验证装置的结构图。
该装置包括：
设置模块510，用于设置多条指纹采集轨迹。
检测模块520，用于检测同时在所述多条指纹采集轨迹上运动的指纹。
采集模块530，用于采集所述多条指纹采集轨迹上的指纹运动信息。
验证模块540，用于对所述指纹运动信息执行匹配验证处理，以判断是否存在与所述指纹运动信息相匹配的指纹运动模型，若是，则验证通过，反之，验证不通过。
在一个实施例中，所述装置还包括生成模块(未示出)；所述生成模块，用于设置多条指纹采集轨迹；在预存的三维指纹库中，获取每条指纹采集轨迹对应的三维指纹；基于所述多条指纹采集轨迹、以及每条指纹采集轨迹对应的三维指纹，生成所述指纹运动模型。
所述设置模块510，用于根据预先生成的指纹运动模型，设置多条指纹采集轨迹。进一步地，设置模块510具体用于：在预先生成的多个指纹运动 模型中，选取其中一个指纹运动模型；根据选取的所述指纹运动模型中的多条指纹采集轨迹，设置多条指纹采集轨迹。
所述验证模块540，用于判断所述指纹运动信息是否与所述预先生成的指纹运动模型相匹配，若是，则验证通过，反之，验证不通过。
在另一实施例中，所述生成模块用于：在设置多条指纹采集轨迹之后，且对所述指纹运动信息执行匹配验证处理之前，为每条指纹采集轨迹设置对应的三维指纹；在预存的三维指纹库中，获取每条指纹采集轨迹对应的三维指纹；基于所述多条指纹采集轨迹、以及每条指纹采集轨迹对应的三维指纹，生成指纹运动模型。
本实施例所述的装置的功能已经在图1-图4所示的方法实施例中进行了描述，故本实施例的描述中未详尽之处，可以参见前述实施例中的相关说明，在此不做赘述。
该指纹验证装置被应用于终端之中。该终端例如是：手机、平板电脑等。
该终端基于上述指纹验证装置，对用户执行基于人体工学的多指纹验证。
以上所述仅为本发明的实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的权利要求范围之内。

Claims (10)

  1. 一种指纹验证方法，其特征在于，包括：
    设置多条指纹采集轨迹；
    检测同时在所述多条指纹采集轨迹上运动的指纹；
    采集所述多条指纹采集轨迹上的指纹运动信息；
    对所述指纹运动信息执行匹配验证处理，以判断是否存在与所述指纹运动信息相匹配的指纹运动模型，若是，则验证通过，反之，验证不通过。
  2. 根据权利要求1所述的方法，其特征在于，
    设置多条指纹采集轨迹，包括：
    根据预先生成的指纹运动模型，设置多条指纹采集轨迹；
    对所述指纹运动信息执行匹配验证处理，包括：
    判断所述指纹运动信息是否与所述预先生成的指纹运动模型相匹配，若是，则验证通过，反之，验证不通过。
  3. 根据权利要求2所述的方法，其特征在于，预先生成指纹运动模型的步骤，包括：
    设置用于生成指纹运动模型的多条指纹采集轨迹；
    在预存的三维指纹库中，获取每条指纹采集轨迹对应的三维指纹；
    基于所述多条指纹采集轨迹、以及每条指纹采集轨迹对应的三维指纹，生成所述指纹运动模型。
  4. 根据权利要求3所述的方法，其特征在于，根据预先生成的指纹运动模型，设置多条指纹采集轨迹，包括：
    在预先生成的多个指纹运动模型中，选取其中一个指纹运动模型；
    根据选取的所述指纹运动模型中的多条指纹采集轨迹，设置多条指纹采集轨迹。
  5. 根据权利要求1所述的方法，其特征在于，
    在设置多条指纹采集轨迹之后，且对所述指纹运动信息执行匹配验证处 理之前，还包括：
    为每条指纹采集轨迹设置对应的三维指纹；
    在预存的三维指纹库中，获取每条指纹采集轨迹对应的三维指纹；
    基于所述多条指纹采集轨迹、以及每条指纹采集轨迹对应的三维指纹，生成指纹运动模型。
  6. 一种指纹验证装置，其特征在于，包括：
    设置模块，用于设置多条指纹采集轨迹；
    检测模块，用于检测同时在所述多条指纹采集轨迹上运动的指纹；
    采集模块，用于采集所述多条指纹采集轨迹上的指纹运动信息；
    验证模块，用于对所述指纹运动信息执行匹配验证处理，以判断是否存在与所述指纹运动信息相匹配的指纹运动模型，若是，则验证通过，反之，验证不通过。
  7. 根据权利要求6所述的装置，其特征在于，
    所述设置模块，用于根据预先生成的指纹运动模型，设置多条指纹采集轨迹；
    所述验证模块，用于判断所述指纹运动信息是否与所述预先生成的指纹运动模型相匹配，若是，则验证通过，反之，验证不通过。
  8. 根据权利要求7所述的装置，其特征在于，所述装置还包括生成模块；所述生成模块用于：
    设置用于生成指纹运动模型的多条指纹采集轨迹；
    在预存的三维指纹库中，获取每条指纹采集轨迹对应的三维指纹；
    基于所述多条指纹采集轨迹、以及每条指纹采集轨迹对应的三维指纹，生成所述指纹运动模型。
  9. 根据权利要求8所述的装置，其特征在于，所述设置模块具体用于：
    在预先生成的多个指纹运动模型中，选取其中一个指纹运动模型；
    根据选取的所述指纹运动模型中的多条指纹采集轨迹，设置多条指纹采 集轨迹。
  10. 根据权利要求6所述的装置，其特征在于，所述生成模块用于：
    在设置多条指纹采集轨迹之后，且对所述指纹运动信息执行匹配验证处理之前，为每条指纹采集轨迹设置对应的三维指纹；
    在预存的三维指纹库中，获取每条指纹采集轨迹对应的三维指纹；
    基于所述多条指纹采集轨迹、以及每条指纹采集轨迹对应的三维指纹，生成指纹运动模型。
PCT/CN2015/088473 2015-07-29 2015-08-30 一种指纹验证方法和装置 Ceased WO2017016026A1 (zh)

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