WO2021233308A1 - 生物特征信息采集系统与处理方法 - Google Patents
生物特征信息采集系统与处理方法 Download PDFInfo
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- WO2021233308A1 WO2021233308A1 PCT/CN2021/094425 CN2021094425W WO2021233308A1 WO 2021233308 A1 WO2021233308 A1 WO 2021233308A1 CN 2021094425 W CN2021094425 W CN 2021094425W WO 2021233308 A1 WO2021233308 A1 WO 2021233308A1
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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
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/70—Arrangements for image or video recognition or understanding using pattern recognition or machine learning
- G06V10/74—Image or video pattern matching; Proximity measures in feature spaces
- G06V10/75—Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video features; Coarse-fine approaches, e.g. multi-scale approaches; using context analysis; Selection of dictionaries
- G06V10/758—Involving statistics of pixels or of feature values, e.g. histogram matching
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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
- G06V40/1347—Preprocessing; Feature extraction
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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
- G06V40/1347—Preprocessing; Feature extraction
- G06V40/1353—Extracting features related to minutiae or pores
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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
- G06V40/1347—Preprocessing; Feature extraction
- G06V40/1359—Extracting features related to ridge properties; Determining the fingerprint type, e.g. whorl or loop
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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
- 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
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Abstract
Description
Claims (12)
- 一种生物特征信息采集系统,其特征在于,包括:透明基板;光源;光电转换装置,与所述光源位于所述透明基板的一侧,所述光电转换装置接收被所述透明基板反射的光,并产生相应的电信号;以及处理装置,根据所述电信号获得所述生物特征信息,其中,所述透明基板的至少部分区域由柔性材料制成。
- 根据权利要求1所述的生物特征信息采集系统,其特征在于,所述生物特征信息包括生物体的预定部位的中心纹路信息、周边纹路信息、汗孔信息。
- 根据权利要求2所述的生物特征信息采集系统,其特征在于,所述光电转换装置包括光电二极管阵列,其中,每个所述光电二极管之间的中心间距不大于90μm。
- 根据权利要求3所述的生物特征信息采集系统,其特征在于,所述处理装置包括:处理单元,用于提供控制信号;控制单元,根据所述控制信号开启所述光电二极管阵列的相应一行光电二极管,在所述光电二极管开启的情况下,所述光电二极管将接收到的光转换成相应的所述电信号;整流回馈单元,根据所述电信号产生模拟电平信号;以及转换单元,根据所述模拟电平信号产生数字信号,并将所述数字信号发送至所述处理单元,其中,所述处理单元根据所述数字信号获得表征所述生物特征信息的待测图像。
- 根据权利要求4所述的生物特征信息采集系统,其特征在于,所述转换单元对所述模拟电平信号的采样频率不小于16bit。
- 根据权利要求1-5任一项所述的生物特征信息采集系统,其特征 在于,所述光源的出光侧朝向所述透明基板。
- 根据权利要求1-5任一项所述的生物特征信息采集系统,其特征在于,所述生物特征信息采集系统由智能手机、平板电脑、笔记本电脑以及门禁装置中任一种电子装置组成。
- 一种处理方法,其特征在于,所述处理方法基于权利要求1至7任一项所述的生物特征信息采集系统,所述处理方法包括:根据所述光电转换装置提供的电信号获得所述预定部位的初始图像;对所述初始图像执行第一直方图均衡化算法以获得第一图像,使得所述第一图像中各个谷和脊的灰度值分布范围大于所述初始图像中各个谷和脊的灰度值分布范围;以及基于所述第一图像获得所述预定部位的第一纹路信息。
- 根据权利要求8所述的处理方法,其特征在于,还包括:在所述第一图像中各个谷和脊的灰度值分布范围内选取中间子区间;在所述第一图像中对多个指定像素点的灰度值执行第二直方图拉伸算法,以便于将所述第一图像处理为第二图像,在所述第一图像中所述多个指定像素点的灰度值分布于所述中间子区间内,所述多个指定像素点在所述第二图像中的灰度值分布范围大于所述指定像素点在所述第一图像中的灰度值分布范围;以及基于所述第二图像获得所述预定部位的第二纹路信息和/或汗孔信息。
- 根据权利要求9所述的处理方法,其特征在于,还包括:对所述第二图像中各个像素点的灰度值进行二值化处理,以便于将所述第二图像转化成二值图像;以及基于所述二值图像获得用于识别所述预定部位的特征信息。
- 根据权利要求8所述的处理方法,其特征在于,还包括:基于所述第一纹路信息判断所述生物体是否为认证合格的用户。
- 根据权利要求10所述的处理方法,其特征在于,还包括:基于所述第一纹路信息初步判断所述生物体是否为认证合格的用户,若是,则基于所述特征信息再次判断所述生物体是否为认证合格的用户。
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KR1020227014474A KR20220065877A (ko) | 2020-05-20 | 2021-05-18 | 생체 특징 정보 수집 시스템 및 처리 방법 |
JP2022570743A JP2023526491A (ja) | 2020-05-20 | 2021-05-18 | 生体特徴情報収集システム及び処理方法 |
US17/926,590 US11967170B2 (en) | 2020-05-20 | 2021-05-18 | Biometric information acquisition system and processing method |
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CN202010429007.0A CN111723665A (zh) | 2020-05-20 | 2020-05-20 | 生物特征信息采集系统与处理方法 |
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JP (1) | JP2023526491A (zh) |
KR (1) | KR20220065877A (zh) |
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Citations (6)
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US20100183200A1 (en) * | 2009-01-16 | 2010-07-22 | Jen-Chieh Wu | Fingerprint Input Module |
CN105989335A (zh) * | 2015-02-13 | 2016-10-05 | 北京智谷睿拓技术服务有限公司 | 信息获取方法、信息获取装置以及用户设备 |
CN107945163A (zh) * | 2017-11-23 | 2018-04-20 | 广州酷狗计算机科技有限公司 | 图像增强方法及装置 |
CN108875643A (zh) * | 2018-06-21 | 2018-11-23 | Oppo广东移动通信有限公司 | 指纹模组、指纹识别方法、装置、存储介质及移动终端 |
CN109670478A (zh) * | 2018-12-29 | 2019-04-23 | 联想(北京)有限公司 | 电子设备及其控制方法 |
CN111723665A (zh) * | 2020-05-20 | 2020-09-29 | 北京集创北方科技股份有限公司 | 生物特征信息采集系统与处理方法 |
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JP2004173827A (ja) | 2002-11-26 | 2004-06-24 | Seiko Epson Corp | 本人照合装置、カード型情報記録媒体及びそれを用いた情報処理システム |
US10635878B2 (en) * | 2015-10-23 | 2020-04-28 | Shenzhen GOODIX Technology Co., Ltd. | Optical fingerprint sensor with force sensing capability |
CN111310620A (zh) | 2020-02-04 | 2020-06-19 | 北京集创北方科技股份有限公司 | 生物特征检测方法及检测装置、电子设备及可读存储介质 |
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- 2021-05-18 US US17/926,590 patent/US11967170B2/en active Active
- 2021-05-18 KR KR1020227014474A patent/KR20220065877A/ko unknown
- 2021-05-18 WO PCT/CN2021/094425 patent/WO2021233308A1/zh active Application Filing
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100183200A1 (en) * | 2009-01-16 | 2010-07-22 | Jen-Chieh Wu | Fingerprint Input Module |
CN105989335A (zh) * | 2015-02-13 | 2016-10-05 | 北京智谷睿拓技术服务有限公司 | 信息获取方法、信息获取装置以及用户设备 |
CN107945163A (zh) * | 2017-11-23 | 2018-04-20 | 广州酷狗计算机科技有限公司 | 图像增强方法及装置 |
CN108875643A (zh) * | 2018-06-21 | 2018-11-23 | Oppo广东移动通信有限公司 | 指纹模组、指纹识别方法、装置、存储介质及移动终端 |
CN109670478A (zh) * | 2018-12-29 | 2019-04-23 | 联想(北京)有限公司 | 电子设备及其控制方法 |
CN111723665A (zh) * | 2020-05-20 | 2020-09-29 | 北京集创北方科技股份有限公司 | 生物特征信息采集系统与处理方法 |
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KR20220065877A (ko) | 2022-05-20 |
JP2023526491A (ja) | 2023-06-21 |
US20230206680A1 (en) | 2023-06-29 |
US11967170B2 (en) | 2024-04-23 |
CN111723665A (zh) | 2020-09-29 |
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