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公开(公告)号：US20170200054A1
公开(公告)日：2017-07-13
申请号：US15472173
申请日：2017-03-28
Applicant: QUALCOMM Incorporated
Inventor： Eliza Yingzi Du , Ming Yu Chen , Esra Vural , Kwokleung Chan , David William Burns , Suryaprakash Ganti , John Keith Schneider , Saurav Kumar Bandyopadhyay , Jin Gu
IPC: G06K9/00
CPC classification number: G06K9/00906 , G06K9/0002 , G06K9/00093 , G06K9/001 , G06K9/00107 , G06K9/00114 , G06T7/32 , G06T7/337 , G06T7/344 , G06T7/44 , G06T2207/10132 , G06T2207/20064 , G06T2207/20072
Abstract: A method of determining whether a biometric object is part of a live individual is described. In one such method, image information is acquired from the biometric object by using a sensor, such as an ultrasonic sensor. The image information may be analyzed in at least two analysis stages. One of the analysis stages may be a temporal analysis stage that analyzes changes in the image information obtained during a time period throughout which the biometric object was continuously available to the sensor. For example, a dead/alive stage may analyze differences between image information taken at two different times in order to identify changes from one time to the next. Other stages may focus on aspects of a particular image information set, rather than seeking to assess changes over time. These other stages seek to determine whether an image information set exhibits characteristics similar to those of a live biometric object.
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公开(公告)号：US20160063296A1
公开(公告)日：2016-03-03
申请号：US14928898
申请日：2015-10-30
Applicant: Qualcomm Incorporated
Inventor： Eliza Yingzi Du , Ming Yu Chen , Esra Vural , Kwokleong Chan , Suryaprakash Ganti , John Keith Schneider , David William Burns
CPC classification number: G06T5/20 , G06K9/0002 , G06K9/00067 , G06K9/00926
Abstract: A fingerprint sensing apparatus may include a fingerprint sensor system and a control system capable of receiving fingerprint sensor data from the fingerprint sensor system. The control system may be capable of determining fingerprint sensor data blocks for at least a portion of the fingerprint sensor data and of calculating statistical variance values for fingerprint sensor data corresponding to each of the fingerprint sensor data blocks. The control system may be capable of determining, based at least in part the statistical variance values, whether an object is positioned proximate a portion of the fingerprint sensor system.
Abstract translation: 指纹感测装置可以包括指纹传感器系统和能够从指纹传感器系统接收指纹传感器数据的控制系统。 控制系统可以能够为指纹传感器数据的至少一部分确定指纹传感器数据块，并且可以计算对应于每个指纹传感器数据块的指纹传感器数据的统计方差值。 控制系统可以能够至少部分地基于统计方差值来确定物体是否位于指纹传感器系统的一部分附近。
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公开(公告)号：US20160350573A1
公开(公告)日：2016-12-01
申请号：US15115058
申请日：2015-03-05
Applicant: QUALCOMM INCORPORATED
Inventor： Jack Conway Kitchens, II , John Keith Schneider , Ashish Hinger , Ranjith Ranganathan , Nai-Kuei Kuo , Kostadin Dimitrov Djordjev , Stephen Michael Gojevic , David William Burns , Nao Sugawara Chuei , Eliza Yingzi Du , Ming Yu Chen , Kwokleung Chan , Jin Gu , Esra Vural
CPC classification number: G06K9/0002 , G01S15/8952 , G06K9/00067 , G06K9/00114 , G06K9/6289
Abstract: Systems and methods for multi-spectral ultrasonic imaging are disclosed. In one embodiment, a finger is scanned at a plurality of ultrasonic scan frequencies. Each scan frequency provides an image information set describing a plurality of pixels of the finger including a signal-strength indicating an amount of energy reflected from a surface of a platen on which a finger is provided. For each of the pixels, the pixel output value corresponding to each of the scan frequencies is combined to produce a combined pixel out put value for each pixel. Systems and methods for improving the data capture of multi-spectral ultrasonic imaging are also disclosed.
Abstract translation: 公开了用于多光谱超声成像的系统和方法。 在一个实施例中，以多个超声波扫描频率扫描手指。 每个扫描频率提供描述手指的多个像素的图像信息集，其包括指示从其上提供手指的台板的表面反射的能量的信号强度。 对于每个像素，对应于每个扫描频率的像素输出值被组合以产生每个像素的组合像素输出值。 还公开了用于改进多光谱超声成像的数据捕获的系统和方法。
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公开(公告)号：US20160070968A1
公开(公告)日：2016-03-10
申请号：US14845174
申请日：2015-09-03
Applicant: QUALCOMM Incorporated
Inventor： Jin Gu , Ming Yu Chen , Eliza Yingzi Du , Kwokleung Chan , Esra Vural , Saurav Bandyopadhyay
CPC classification number: G06K9/00906 , G06K9/0002 , G06K9/00093 , G06K9/001 , G06K9/00107 , G06K9/00114 , G06T7/32 , G06T7/337 , G06T7/344 , G06T7/44 , G06T2207/10132 , G06T2207/20064 , G06T2207/20072
Abstract: A liveness-detection method and/or system is disclosed. A method of detecting liveness can comprise obtaining a single ultrasonic image of a biometric object. The single ultrasonic image can be subdivided into a plurality of overlapping sample blocks. Feature vectors can be extracted in a spatial domain and a frequency domain from each of the plurality of sample blocks. The feature vectors can be compared from each of the plurality of sample blocks to a classification model.
Abstract translation: 公开了一种活性检测方法和/或系统。 检测活力的方法可以包括获得生物特征物体的单个超声波图像。 单个超声波图像可以被细分成多个重叠的样本块。 特征向量可以在多个样本块中的每一个的空间域和频域中提取。 特征向量可以从多个样本块中的每一个到分类模型进行比较。
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公开(公告)号：US09633269B2
公开(公告)日：2017-04-25
申请号：US14845174
申请日：2015-09-03
Applicant: QUALCOMM Incorporated
Inventor： Jin Gu , Ming Yu Chen , Eliza Yingzi Du , Kwokleung Chan , Esra Vural , Saurav Bandyopadhyay
CPC classification number: G06K9/00906 , G06K9/0002 , G06K9/00093 , G06K9/001 , G06K9/00107 , G06K9/00114 , G06T7/32 , G06T7/337 , G06T7/344 , G06T7/44 , G06T2207/10132 , G06T2207/20064 , G06T2207/20072
Abstract: A liveness-detection method and/or system is disclosed. A method of detecting liveness can comprise obtaining a single ultrasonic image of a biometric object. The single ultrasonic image can be subdivided into a plurality of overlapping sample blocks. Feature vectors can be extracted in a spatial domain and a frequency domain from each of the plurality of sample blocks. The feature vectors can be compared from each of the plurality of sample blocks to a classification model.
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Patent Agency Ranking
公开(公告)号：US20160063300A1
公开(公告)日：2016-03-03
申请号：US14474160
申请日：2014-08-31
Applicant: QUALCOMM Incorporated
Inventor： Eliza Yingzi Du , Ming Yu Chen , Esra Vural , Kwokleung Chan , Suryaprakash Ganti , John Keith Schneider , David William Burns
IPC: G06K9/00
CPC classification number: G06K9/00033 , G06K9/00013 , G06K9/00067 , G06K9/00087 , G06K9/0012
Abstract: A fingerprint sensing apparatus includes a fingerprint sensor system and a control system capable of receiving fingerprint sensor data from the fingerprint sensor system. The control system may determine, according to the fingerprint sensor data, whether an object is positioned proximate a portion of the fingerprint sensor system. If the control system determines that an object is positioned proximate the portion of the fingerprint sensor system, the control system may determine whether the object is a finger or a non-finger object. The control system may determine whether the fingerprint sensor data includes fingerprint image information of at least an image quality threshold.
Abstract translation: 指纹感测装置包括指纹传感器系统和能够从指纹传感器系统接收指纹传感器数据的控制系统。 控制系统可以根据指纹传感器数据确定物体是否位于指纹传感器系统的一部分附近。 如果控制系统确定对象位于指纹传感器系统的部分附近，则控制系统可以确定对象是手指还是非手指对象。 控制系统可以确定指纹传感器数据是否包括至少图像质量阈值的指纹图像信息。
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公开(公告)号：US20160063294A1
公开(公告)日：2016-03-03
申请号：US14474164
申请日：2014-08-31
Applicant: QUALCOMM Incorporated
Inventor： Eliza Yingzi Du , Ming Yu Chen , Esra Vural , Kwokleung Chan , Suryaprakash Ganti , John Keith Schneider , David William Burns
IPC: G06K9/00
CPC classification number: G06K9/0002 , G06K9/00013 , G06K9/00033 , G06K9/00067
Abstract: A fingerprint sensing apparatus may include a fingerprint sensor system and a control system. The fingerprint sensor system may include an ultrasonic sensor array. The control system may be capable of receiving fingerprint sensor data from the fingerprint sensor system and of determining whether an object is positioned proximate a portion of the fingerprint sensor system. The control system may be capable of determining an acoustic impedance of at least a portion of an object that is positioned proximate the fingerprint sensor system. The control system may be capable of determining whether the acoustic impedance is within an acoustic impedance range corresponding to that of skin and of determining, based at least in part on the acoustic impedance, whether the object is a finger.
Abstract translation: 指纹感测装置可以包括指纹传感器系统和控制系统。 指纹传感器系统可以包括超声波传感器阵列。 控制系统可能能够从指纹传感器系统接收指纹传感器数据，并且确定物体是否位于指纹传感器系统的一部分附近。 控制系统可以能够确定位于指纹传感器系统附近的物体的至少一部分的声阻抗。 控制系统可以能够确定声阻抗是否在对应于皮肤阻抗的声阻抗范围内，并且至少部分地基于声阻抗来确定对象是手指。
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公开(公告)号：US09665763B2
公开(公告)日：2017-05-30
申请号：US14474164
申请日：2014-08-31
Applicant: QUALCOMM Incorporated
Inventor： Eliza Yingzi Du , Ming Yu Chen , Esra Vural , Kwokleung Chan , Suryaprakash Ganti , John Keith Schneider , David William Burns
IPC: G06K9/00
CPC classification number: G06K9/0002 , G06K9/00013 , G06K9/00033 , G06K9/00067
Abstract: Some methods may involve determining whether an object is positioned on or near a portion of a fingerprint sensor system. If an object is positioned on or near the portion of the fingerprint sensor system, an acoustic impedance of at least a portion of the object may be determined. Based at least in part on the acoustic impedance, it may be determined whether the object is a finger.
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公开(公告)号：US09639765B2
公开(公告)日：2017-05-02
申请号：US14845149
申请日：2015-09-03
Applicant: QUALCOMM Incorporated
Inventor： Eliza Yingzi Du , Ming Yu Chen , Esra Vural , Kwokleung Chan , David William Burns , Suryaprakash Ganti , John Keith Schneider , Saurav Bandyopadhyay , Jin Gu
CPC classification number: G06K9/00906 , G06K9/0002 , G06K9/00093 , G06K9/001 , G06K9/00107 , G06K9/00114 , G06T7/32 , G06T7/337 , G06T7/344 , G06T7/44 , G06T2207/10132 , G06T2207/20064 , G06T2207/20072
Abstract: A method of determining whether a biometric object is part of a live individual is described. In one such method, image information is acquired from the biometric object by using a sensor, such as an ultrasonic sensor. The image information may be analyzed in at least two analysis stages. One of the analysis stages may be a temporal analysis stage that analyzes changes in the image information obtained during a time period throughout which the biometric object was continuously available to the sensor. For example, a dead/alive stage may analyze differences between image information taken at two different times in order to identify changes from one time to the next. Other stages may focus on aspects of a particular image information set, rather than seeking to assess changes over time. These other stages seek to determine whether an image information set exhibits characteristics similar to those of a live biometric object.
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公开(公告)号：US20160070967A1
公开(公告)日：2016-03-10
申请号：US14845149
申请日：2015-09-03
Applicant: QUALCOMM Incorporated
Inventor： Eliza Yingzi Du , Ming Yu Chen , Esra Vural , Kwokleung Chan , David William Burns , Suryaprakash Ganti , John Keith Schneider , Saurav Bandyopadhyay , Jin Gu
CPC classification number: G06K9/00906 , G06K9/0002 , G06K9/00093 , G06K9/001 , G06K9/00107 , G06K9/00114 , G06T7/32 , G06T7/337 , G06T7/344 , G06T7/44 , G06T2207/10132 , G06T2207/20064 , G06T2207/20072
Abstract: A method of determining whether a biometric object is part of a live individual is described. In one such method, image information is acquired from the biometric object by using a sensor, such as an ultrasonic sensor. The image information may be analyzed in at least two analysis stages. One of the analysis stages may be a temporal analysis stage that analyzes changes in the image information obtained during a time period throughout which the biometric object was continuously available to the sensor. For example, a dead/alive stage may analyze differences between image information taken at two different times in order to identify changes from one time to the next. Other stages may focus on aspects of a particular image information set, rather than seeking to assess changes over time. These other stages seek to determine whether an image information set exhibits characteristics similar to those of a live biometric object.
Abstract translation: 描述了一种确定生物体对象是否是活体个体的一部分的方法。 在一种这样的方法中，通过使用诸如超声波传感器的传感器从生物体对象获取图像信息。 可以在至少两个分析阶段中分析图像信息。 分析阶段之一可以是时间分析阶段，其分析在生物测定对象连续可用于传感器的时间段期间获得的图像信息的变化。 例如，死亡/活跃阶段可以分析在两个不同时间拍摄的图像信息之间的差异，以便识别从一次到另一次的变化。 其他阶段可能侧重于特定图像信息集的方面，而不是设法评估随时间的变化。 这些其他阶段寻求确定图像信息集是否表现出与活体生物体对象相似的特征。
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