WO2017028667A1 - 指纹识别的方法及系统 - Google Patents
指纹识别的方法及系统 Download PDFInfo
- Publication number
- WO2017028667A1 WO2017028667A1 PCT/CN2016/091973 CN2016091973W WO2017028667A1 WO 2017028667 A1 WO2017028667 A1 WO 2017028667A1 CN 2016091973 W CN2016091973 W CN 2016091973W WO 2017028667 A1 WO2017028667 A1 WO 2017028667A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fingerprint
- image
- camera
- lens
- processing module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- 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
- G06V40/13—Sensors therefor
- G06V40/1312—Sensors therefor direct reading, e.g. contactless acquisition
-
- 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
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
-
- 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
- G06V40/13—Sensors therefor
- G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms
-
- 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
Definitions
- the present invention relates to the field of biometrics, and in particular, to a method and system for fingerprint recognition.
- the prior patent discloses a fingerprint identification access control management system, including: a fingerprint entry module, a fingerprint verification module, an electronic lock module and a liquid crystal display module, wherein the fingerprint entry module includes a fingerprint camera And a storage unit, wherein the fingerprint image captured by the fingerprint camera is stored in the storage unit, the fingerprint verification module includes a fingerprint comparison unit and a fingerprint identification unit, and the electronic control lock module includes a user name and a password input, and the liquid crystal display
- the module includes a liquid crystal display, and the fingerprint entry module, the fingerprint verification module, and the liquid crystal display module are connected to the electronically controlled lock module.
- the comparison file does not involve the acquisition and processing of images. This is an important step in obtaining a highly accurate fingerprint image.
- the technical problem to be solved by the present invention is: using a common camera to acquire a fingerprint image, and performing comparison processing to obtain a fingerprint, which is convenient in operation and low in cost.
- the technical solution adopted by the present invention is: Providing a method for fingerprint identification, comprising:
- the present invention further provides a fingerprint recognition system, including a camera, a lens and an image processing module, and performs the following steps:
- S1 aligning the camera so that the focus of the camera is aligned with the lens
- S2 the camera continuously acquires a fingerprint image formed by the finger pressing the lens, and sends the fingerprint image to the image processing module;
- S3 The image processing module processes the fingerprint image to obtain a fingerprint.
- the beneficial effects of the present invention are as follows: Different from the prior art, the present invention obtains a pressed finger fingerprint from a lens by focusing the camera and the lens, and sends it to the image processing module for processing to acquire a fingerprint. In the above manner, the invention can realize the acquisition of the fingerprint by using an ordinary camera, and the operation is convenient and the cost is low.
- Embodiment 1 is a schematic flow chart of Embodiment 1 of a method according to the present invention.
- Embodiment 2 is a schematic flowchart of Embodiment 2 of a method according to the present invention.
- FIG. 3 is a schematic view of components in a specific embodiment of the present invention.
- FIG. 4 is a schematic diagram of an operation component for acquiring a fingerprint in a specific embodiment of the present invention.
- FIG. 5 is a structural block diagram of a third embodiment of a system according to the present invention.
- the most critical idea of the present invention is: taking a fingerprint image through a normal camera and processing to obtain a fingerprint.
- a first embodiment of the present invention provides a fingerprint identification method, including:
- S1 aligning the camera such that the focus of the camera is aligned with the lens
- S2 the camera continuously acquires the fingerprint image formed by the finger pressing lens, and sends the fingerprint image to the image processing module;
- S3 The image processing module processes the fingerprint image to obtain the fingerprint.
- the first embodiment of the present invention obtains a pressed finger fingerprint from the lens by focusing the camera and the lens, and sends the fingerprint to the image processing module to obtain a fingerprint.
- the invention only needs to adopt an ordinary camera to realize the acquisition of the fingerprint, the operation is convenient, and the cost is low.
- the second embodiment of the present invention further includes [0027] S31: attaching an anti-fingerprint film on the outer side of the lens.
- a fingerprint recognition auxiliary structure 3 is added to the autofocus camera 2 of the ordinary PDA or the mobile phone 1.
- the auxiliary structure is a hollow lens barrel, one side can cover the camera 2, and the other side is provided with a lens 4.
- An anti-fingerprint film is attached on the outer side of the lens 4, and the film is directly in contact with the finger, so that the finger is pressed against the lens 4, and no fingerprint remains. After the finger is pressed on the lens 4, a fingerprint path is formed on the other side of the lens 4. The image, the fingerprint can pass through the lens 4 and is captured by the camera 2.
- the present invention aligns the focus of the camera 2 with the center of the lens 4, and autofocus can be achieved by the autofocus camera.
- step S2 the method further includes:
- S22 connecting the camera and the image processing module through the CSI interface.
- the purpose of setting the camera to the continuous preview state is to obtain a fingerprint image, and can make adjustments according to needs, and ,, including adjusting the finger pressing position or focal length to obtain the fingerprint image with the best definition.
- the image is continuously sent to the image processing module.
- the image processing module may be a device such as a CPU that can execute processing of an image.
- step S2 is specifically:
- S20 according to the YUV format, the camera determines whether the brightness component value Y is less than a preset value
- the camera sends the previewed picture to the CPU through the CSI interface for processing, and judges the YUV format. Since the finger is not pressed, the brightness of the picture captured by the camera is high, and after the finger is pressed, the picture is dark. Therefore, by judging the change in the Y value of the brightness signal of the screen, it is judged whether or not a finger is pressed.
- the brightness preset value can be set. If it is lower than the preset value, it means that there is a finger press, then the camera captures the fingerprint image; if the brightness is greater than the preset value, it means that the finger press is not detected, and the user needs to press again. Finger, and further obtain the image, repeat the judgment step, and then send the photographed image to the CPU, and the CPU performs image processing.
- step S3 of processing the fingerprint image is specifically:
- S32 the image processing module converts the fingerprint image into a black and white grayscale image, and performs binarization processing to obtain a black and white texture image;
- S33 extracting feature values of the black and white texture image, and sending the system to the background comparison
- S34 Acquire a fingerprint according to the comparison result.
- the processing flow is: converting a color image of the fingerprint image captured by the camera into a black and white grayscale image, and then performing binarization processing of the image, and obtaining a black and white grain image of the fingerprint after binarization, and then patterning the image
- the feature values are extracted, and the identified feature values are sent to the background of the system for comparison. By comparing the results, the fingerprint recognition is successful. If successful, the fingerprint is obtained. Otherwise, the next operation is waited.
- the second embodiment of the present invention obtains a clear finger fingerprint by attaching an anti-fingerprint film on the outer side of the lens, and determines whether a finger press is sensed according to the change of the brightness, so as to automatically realize shooting.
- image processing module image conversion and feature value extraction are performed to achieve the ultimate goal of fingerprint acquisition.
- the invention can realize the acquisition of the fingerprint by using an ordinary camera, and the operation is convenient and the cost is low.
- a third embodiment of the present invention provides a system 100 for fingerprint recognition, including a camera 110, a lens 120, and an image processing module 130, and performs the following steps:
- S1 aligning the camera 110, so that the focus of the camera 110 is aligned with the lens 120;
- S2 the camera 110 continues to acquire the fingerprint image formed by the finger pressing lens, and sent to the image processing module 130;
- S3 The image processing module 130 processes the fingerprint image to acquire a fingerprint.
- step S3 the method further includes: [0051] S31: an anti-fingerprint film is attached on the outer side of the lens 120.
- step S2 the method further includes:
- S22 The camera 110 and the image processing module 130 are connected through a CSI interface.
- step S2 is specifically:
- S20 according to the YUV format, the camera 110 determines whether the brightness component value Y is less than a preset value
- Shijie' then executes S23: the camera 110 takes a photo to obtain a fingerprint image, and sends it to the image processing module
- step S3 is specifically:
- S32 The image processing module 130 converts the fingerprint image into a black and white grayscale image, and performs binarization processing to obtain a black and white texture image;
- S33 extracting feature values of the black and white texture image, and sending the system to the background comparison
- S34 Acquire a fingerprint according to the comparison result.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Optics & Photonics (AREA)
- Image Input (AREA)
- Collating Specific Patterns (AREA)
- Studio Devices (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES16836531T ES2954987T3 (es) | 2015-08-14 | 2016-07-28 | Método y sistema de identificación de huellas digitales |
| EP16836531.0A EP3309709B1 (en) | 2015-08-14 | 2016-07-28 | Fingerprint identification method and system |
| BR112018001464A BR112018001464A2 (pt) | 2015-08-14 | 2016-07-28 | ?método e sistema para identificação de impressão digital? |
| US15/871,150 US10438043B2 (en) | 2015-08-14 | 2018-01-15 | Method and system for identifying fingerprint |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510498076.6 | 2015-08-14 | ||
| CN201510498076.6A CN105069435A (zh) | 2015-08-14 | 2015-08-14 | 指纹识别的方法及系统 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US15/871,150 Continuation US10438043B2 (en) | 2015-08-14 | 2018-01-15 | Method and system for identifying fingerprint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2017028667A1 true WO2017028667A1 (zh) | 2017-02-23 |
Family
ID=54498797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2016/091973 Ceased WO2017028667A1 (zh) | 2015-08-14 | 2016-07-28 | 指纹识别的方法及系统 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US10438043B2 (zh) |
| EP (1) | EP3309709B1 (zh) |
| CN (1) | CN105069435A (zh) |
| BR (1) | BR112018001464A2 (zh) |
| ES (1) | ES2954987T3 (zh) |
| WO (1) | WO2017028667A1 (zh) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105069435A (zh) * | 2015-08-14 | 2015-11-18 | 福建联迪商用设备有限公司 | 指纹识别的方法及系统 |
| CN107644192A (zh) * | 2016-07-22 | 2018-01-30 | 展讯通信(上海)有限公司 | 指纹识别方法、装置及电子设备 |
| CN107256383B (zh) * | 2017-05-22 | 2020-01-14 | Oppo广东移动通信有限公司 | 指纹的采集方法、装置及相关终端设备和可读存储介质 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1239403A2 (en) * | 2001-03-06 | 2002-09-11 | TRW Inc. | Method and system for identity verification using multiple simultaneously scanned biometric images |
| CN1392507A (zh) * | 2001-06-18 | 2003-01-22 | 日本电气株式会社 | 指纹输入设备 |
| CN202120281U (zh) * | 2011-07-08 | 2012-01-18 | 成都方程式电子有限公司 | 防指纹残留的光学指纹识别模块 |
| CN104680136A (zh) * | 2015-02-06 | 2015-06-03 | 广东光阵光电科技有限公司 | 直拍式指纹采集方法及其构造 |
| CN105069435A (zh) * | 2015-08-14 | 2015-11-18 | 福建联迪商用设备有限公司 | 指纹识别的方法及系统 |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2208179A1 (en) * | 1997-06-18 | 1998-12-18 | Roland S. Walch | Pointing device with optical fingerprint recognition and tracking capability |
| US6373969B1 (en) * | 1999-03-15 | 2002-04-16 | Activcard Ireland, Limited | Corrective optical component |
| AU1330501A (en) * | 1999-10-07 | 2001-05-10 | Veridicom, Inc. | Spoof detection for biometric sensing systems |
| EP1130535A2 (de) * | 2000-02-28 | 2001-09-05 | Siemens Aktiengesellschaft | Verfahren zum Einsatz eines Fingerabdrucksensors |
| US7016520B2 (en) * | 2002-03-07 | 2006-03-21 | Mark Melvin Butterworth | Electronic device with digital camera for general-purpose photography and fingerprint sensing |
| US7215881B2 (en) * | 2002-12-19 | 2007-05-08 | Nokia Corporation | Mobile communications equipment with built-in camera |
| JP4258393B2 (ja) * | 2003-03-13 | 2009-04-30 | 三菱電機株式会社 | 個人識別装置および指紋画像撮像装置、指紋画像取得方法 |
| CN101459515B (zh) * | 2007-12-14 | 2011-05-04 | 深圳富泰宏精密工业有限公司 | 手持行动电子装置身份认证系统及方法 |
| KR101911763B1 (ko) * | 2011-07-11 | 2018-10-26 | 도레이 카부시키가이샤 | 성형 재료, 도료 조성물 및 성형 재료의 제조 방법 |
| US8933445B2 (en) * | 2011-12-26 | 2015-01-13 | Research & Business Foundation Sungkyunkwan University | Functional thin film for touch screen and method for forming the same |
| EP2838068B1 (en) * | 2012-03-16 | 2020-02-19 | Normee Limited | Personal authentication method and personal authentication device |
| TW201250478A (en) * | 2012-09-05 | 2012-12-16 | sheng-long Yang | Electronic device and function extension method for electronic device |
| CN103854013A (zh) * | 2012-12-06 | 2014-06-11 | 武汉科技大学 | 一种基于稀疏矩阵的arm指纹识别方法及装置 |
| CN103400435A (zh) | 2013-08-14 | 2013-11-20 | 常熟合正企业管理咨询有限公司 | 一种指纹识别门禁管理系统 |
| KR101479609B1 (ko) * | 2014-02-26 | 2015-01-12 | 주식회사 유니온커뮤니티 | 카메라가 장착된 휴대 단말기를 이용한 지문입력장치 및 그 지문입력용 외장 광학기기 |
| CN104202475B (zh) * | 2014-08-28 | 2017-03-08 | Tcl通讯(宁波)有限公司 | 一种基于移动终端测量脉搏的方法及系统 |
| US9424458B1 (en) * | 2015-02-06 | 2016-08-23 | Hoyos Labs Ip Ltd. | Systems and methods for performing fingerprint based user authentication using imagery captured using mobile devices |
-
2015
- 2015-08-14 CN CN201510498076.6A patent/CN105069435A/zh active Pending
-
2016
- 2016-07-28 WO PCT/CN2016/091973 patent/WO2017028667A1/zh not_active Ceased
- 2016-07-28 ES ES16836531T patent/ES2954987T3/es active Active
- 2016-07-28 EP EP16836531.0A patent/EP3309709B1/en active Active
- 2016-07-28 BR BR112018001464A patent/BR112018001464A2/pt not_active Application Discontinuation
-
2018
- 2018-01-15 US US15/871,150 patent/US10438043B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1239403A2 (en) * | 2001-03-06 | 2002-09-11 | TRW Inc. | Method and system for identity verification using multiple simultaneously scanned biometric images |
| CN1392507A (zh) * | 2001-06-18 | 2003-01-22 | 日本电气株式会社 | 指纹输入设备 |
| CN202120281U (zh) * | 2011-07-08 | 2012-01-18 | 成都方程式电子有限公司 | 防指纹残留的光学指纹识别模块 |
| CN104680136A (zh) * | 2015-02-06 | 2015-06-03 | 广东光阵光电科技有限公司 | 直拍式指纹采集方法及其构造 |
| CN105069435A (zh) * | 2015-08-14 | 2015-11-18 | 福建联迪商用设备有限公司 | 指纹识别的方法及系统 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP3309709A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105069435A (zh) | 2015-11-18 |
| EP3309709A1 (en) | 2018-04-18 |
| EP3309709A4 (en) | 2018-07-18 |
| US10438043B2 (en) | 2019-10-08 |
| US20180137328A1 (en) | 2018-05-17 |
| EP3309709B1 (en) | 2023-06-07 |
| ES2954987T3 (es) | 2023-11-28 |
| BR112018001464A2 (pt) | 2018-11-06 |
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