公开(公告)号：US20120194662A1

公开(公告)日：2012-08-02

申请号：US13015581

申请日：2011-01-28

申请人： Dapeng David Zhang ,  Zhenhua Guo ,  Guangming Lu ,  Nan Luo

发明人： Dapeng David Zhang ,  Zhenhua Guo ,  Guangming Lu ,  Nan Luo

IPC分类号： H04N7/18 ,  G06K9/00

CPC分类号： G06K9/00033 ,  G06K9/2018 ,  G06K9/629

摘要： A method for palmprint verification of an individual that includes illuminating a palm of an individual with a plurality of spectral bands, collecting a plurality of palmprint images that are illuminated under the different spectral bands, locating a sub-image from each of the plurality of palmprint images, extracting palmprint feature maps from the sub-images, determining a palmprint matching score for each of the spectral bands based on the palmprint feature maps, computing a fused score by combining at least two of the palmprint matching scores under different spectral bands, without double-counting overlapping regions, and comparing the fused score with a threshold score from a database.

摘要翻译： 一种用于掌握个人掌纹验证的方法，包括用多个光谱带照射个体的手掌，收集在不同光谱带下被照明的多个掌纹图像，从多个掌纹中的每一个定位子图像 图像，从子图像提取掌纹特征图，基于掌纹特征图确定每个频谱带的掌纹匹配分数，通过组合不同谱带下的至少两个掌纹匹配分数来计算融合分数，而没有 重复计数重叠区域，并将融合分数与数据库的阈值分数进行比较。

公开(公告)号：US06448910B1

公开(公告)日：2002-09-10

申请号：US09818746

申请日：2001-03-26

申请人： Guangming Lu

发明人： Guangming Lu

IPC分类号： H03M738

CPC分类号： H03M13/6511 ,  H03M13/23 ,  H03M13/3961 ,  H03M13/4169 ,  H03M13/6563

摘要： A method and apparatus for convolution encoding and Viterbi decoding utilizes a flexible, digital signal processing architecture that comprises a core processor and a plurality of re-configurable processing elements arranged in a two-dimensional array. The core processor is operable to configure the re-configurable processing elements to perform data encoding and data decoding functions. A received data input is encoded by configuring one of the re-configurable processing elements to emulate a convolution encoding algorithm and applying the received data input to the convolution encoding algorithm. A received encoded data input is decoded by configuring the plurality of re-configurable processing elements to emulate a Viterbi decoding algorithm wherein the plurality of re-configurable processing elements is configured to accommodate every data state of the convolution encoding algorithm. The core processor initializes the re-configurable processing elements by assigning register values to registers that define parameters such as constraint length and code rate for the convolution encoding algorithm.

摘要翻译： 用于卷积编码和维特比解码的方法和装置利用灵活的数字信号处理架构，其包括核心处理器和以二维阵列布置的多个可重新配置的处理元件。 核心处理器可操作地配置可重新配置的处理元件以执行数据编码和数据解码功能。 通过配置可重新配置的处理元件之一来对接收的数据输入进行编码，以模拟卷积编码算法并将接收到的数据输入应用于卷积编码算法。 接收的编码数据输入被解码，通过配置多个可重新配置的处理元件来模拟维特比解码算法，其中多个可重新配置的处理元件被配置为适应卷积编码算法的每个数据状态。 核心处理器通过为定义诸如卷积编码算法的约束长度和码率等参数的寄存器分配寄存器值来初始化可重新配置的处理元件。

公开(公告)号：US08411913B2

公开(公告)日：2013-04-02

申请号：US12485056

申请日：2009-06-16

申请人： David Zhang ,  Qijun Zhao ,  Nan Luo ,  Guangming Lu

发明人： David Zhang ,  Qijun Zhao ,  Nan Luo ,  Guangming Lu

IPC分类号： G06K9/00

CPC分类号： G06K9/00093 ,  G06K9/00073

摘要： A method for partial fingerprint recognition, the method comprising the steps of extracting features including ridge orientations, valley images, minutiae, and pores from at least two fingerprint fragments, aligning the fingerprint fragments, matching the pores and minutiae on the fingerprint fragments after applying estimated alignment transformation, calculating a final matching score based on a pore matching score and a minutiae matching score, identifying a person based on a result of the final matching score.

摘要翻译： 一种用于部分指纹识别的方法，所述方法包括以下步骤：从至少两个指纹片段提取脊取向，谷图像，细节和孔，从而在应用估计后的指纹片段上对准指纹片段，匹配指纹片段上的细孔和细节 对齐变换，基于孔匹配分数和细节匹配分数计算最终匹配分数，基于最终匹配分数的结果识别人。

公开(公告)号：US08229178B2

公开(公告)日：2012-07-24

申请号：US12542715

申请日：2009-08-18

申请人： David Zhang ,  Guangming Lu ,  Zhenhua Guo ,  Nan Luo

发明人： David Zhang ,  Guangming Lu ,  Zhenhua Guo ,  Nan Luo

IPC分类号： G06K9/00

CPC分类号： G06K9/00067 ,  G06K9/00087 ,  G06K9/00375 ,  G06K9/00906 ,  G06K2009/00932

摘要： A method of personal identification includes switching between visible and near infrared light, acquiring palmprint image and palm vein image from a person under the visible and the near infrared light, extracting sub-images from the palmprint image and the palm vein image based on a region of interest, extracting multiple features from the sub-images, and matching the extracted multiple features with stored information in a database to authenticate the person.

摘要翻译： 一种个人识别方法包括在可见光和近红外光之间切换，从可见光和近红外光下的人获取掌纹图像和手掌静脉图像，基于区域从掌纹图像和手掌静脉图像中提取子图像 从子图像中提取多个特征，并将所提取的多个特征与存储在数据库中的信息进行匹配以验证该人。

公开(公告)号：US20090310831A1

公开(公告)日：2009-12-17

申请号：US12485056

申请日：2009-06-16

申请人： David Zhang ,  Qijun Zhao ,  Nan Luo ,  Guangming Lu

发明人： David Zhang ,  Qijun Zhao ,  Nan Luo ,  Guangming Lu

IPC分类号： G06K9/00

CPC分类号： G06K9/00093 ,  G06K9/00073

摘要： A method for partial fingerprint recognition, the method comprising the steps of extracting features including ridge orientations, valley images, minutiae, and pores from at least two fingerprint fragments, aligning the fingerprint fragments, matching the pores and minutiae on the fingerprint fragments after applying estimated alignment transformation, calculating a final matching score based on a pore matching score and a minutiae matching score, identifying a person based on a result of the final matching score.

摘要翻译： 一种用于部分指纹识别的方法，所述方法包括以下步骤：从至少两个指纹片段提取脊取向，谷图像，细节和孔，从而在应用估计后的指纹片段上对准指纹片段，匹配指纹片段上的细孔和细节 对齐变换，基于孔匹配分数和细节匹配分数计算最终匹配分数，基于最终匹配分数的结果识别人。

公开(公告)号：US20200012561A1

公开(公告)日：2020-01-09

申请号：US16573962

申请日：2019-09-17

申请人： Guangming Lu

发明人： Guangming Lu

IPC分类号： G06F11/10 ,  G11C16/28 ,  G11C29/52 ,  G11C11/56 ,  G11C16/26 ,  G11C29/02 ,  H03M13/29 ,  H03M13/11 ,  H03M13/37 ,  H03M13/00

摘要： A system and method for adaptive multiple read of NAND flash memory. A solid state drive may employ adaptive multiple-read to perform enhanced performance error correction using soft decisions without a performance penalty that otherwise might result from performing unnecessary reads. The soft decision error correcting algorithm may employ lookup tables containing log likelihood ratios. The method may include performing one or more read operations to obtain one or more raw data words for a code word, attempting to decode the code words using the one or more raw data words, and performing additional read operations when the decoding attempt fails. This process may be repeated until a decoding attempt succeeds.

公开(公告)号：US20120260009A1

公开(公告)日：2012-10-11

申请号：US12842919

申请日：2010-07-23

申请人： Guangming LU ,  Mark Moshayedi

发明人： Guangming LU ,  Mark Moshayedi

IPC分类号： G06F3/00 ,  G06F12/02 ,  G06F12/00

CPC分类号： G06F3/0656 ,  G06F3/0608 ,  G06F3/064 ,  G06F3/0679 ,  G06F12/08 ,  G06F2212/401

摘要： A data storage system includes a host interface configured to be coupled to a host device, to receive data from the host device, and to send data to the host device and a memory. The data storage system further includes a primary compression engine coupled to the host interface and to the memory, wherein the primary compression engine is configured to compress data received from the host device via the host interface and to store the compressed data in the memory, and wherein the primary compression engine is further configured to decompress compressed data stored in the memory prior to the decompressed data being sent to the host device via the host interface. The data storage system further includes a secondary compression engine coupled to the memory, wherein the secondary compression engine is configured to compress data stored in the memory and to store the compressed data back in the memory, and wherein the secondary compression engine is further configured to decompress compressed data stored in the memory and to store the decompressed data back in the memory. The data storage system further includes a non-volatile storage medium and a processor configured to transfer compressed data from the memory to the non-volatile storage medium in response to a write command received from the host device and to transfer compressed data from the non-volatile storage medium to the memory in response to a read command received from the host device.

摘要翻译： 数据存储系统包括被配置为耦合到主机设备的主机接口，用于从主机设备接收数据，以及向主机设备和存储器发送数据。 数据存储系统还包括耦合到主机接口和存储器的主压缩引擎，其中主压缩引擎被配置为经由主机接口压缩从主机设备接收的数据并将压缩数据存储在存储器中，以及 其中所述主压缩引擎还被配置为在所述解压缩数据经由所述主机接口发送到所述主机设备之前解压缩存储在所述存储器中的压缩数据。 数据存储系统还包括耦合到存储器的次级压缩引擎，其中辅助压缩引擎被配置为压缩存储在存储器中的数据并将压缩数据存储回存储器中，并且其中次级压缩引擎还被配置为 对存储在存储器中的压缩数据进行解压缩并将解压后的数据存储回存储器中。 数据存储系统还包括非易失性存储介质和处理器，其被配置为响应于从主机设备接收到的写入命令将压缩数据从存储器传送到非易失性存储介质，并且从非易失性存储介质传送压缩数据， 响应于从主机设备接收到的读取命令，将易失性存储介质传送到存储器。

公开(公告)号：US08265347B2

公开(公告)日：2012-09-11

申请号：US12428039

申请日：2009-04-22

申请人： David Zhang ,  Guangming Lu ,  Nan Luo ,  Wei Li ,  Lei Zhang ,  Vivek Kanhangad

发明人： David Zhang ,  Guangming Lu ,  Nan Luo ,  Wei Li ,  Lei Zhang ,  Vivek Kanhangad

IPC分类号： G06K9/62

CPC分类号： G06K9/00107 ,  G06K9/00087 ,  G06K9/2036

摘要： A biometric identification system (30) for identifying a person, the system (30) comprising: an image acquisition module (31) to capture a three-dimensional (3D) image of a palm of the person; a region of interest (ROI) extraction module (34) to extract a 3D subimage from the captured image; and a 3D features extraction module (36) to extract 3D palmprint features from the 3D subimage; wherein the extracted 3D palmprint features are compared to reference 3D palmprint features to verify the identity of the person.

摘要翻译： 一种用于识别人的生物识别系统（30），所述系统（30）包括：图像获取模块（31），用于捕获所述人的手掌的三维（3D）图像; 感兴趣区域（ROI）提取模块，用于从所捕获的图像提取3D子图像; 和3D特征提取模块（36），用于从3D子图像提取3D掌纹特征; 其中提取的3D掌纹特征与参考3D掌纹特征进行比较以验证该人的身份。

公开(公告)号：US20100045788A1

公开(公告)日：2010-02-25

申请号：US12542715

申请日：2009-08-18

申请人： David Zhang ,  Guangming Lu ,  Zhenhua Guo ,  Nan Luo

发明人： David Zhang ,  Guangming Lu ,  Zhenhua Guo ,  Nan Luo

IPC分类号： H04N7/18 ,  G06K9/00

CPC分类号： G06K9/00067 ,  G06K9/00087 ,  G06K9/00375 ,  G06K9/00906 ,  G06K2009/00932

摘要： A method of personal identification includes switching between visible and near infrared light, acquiring palmprint image and palm vein image from a person under the visible and the near infrared light, extracting sub-images from the palmprint image and the palm vein image based on a region of interest, extracting multiple features from the sub-images, and matching the extracted multiple features with stored information in a database to authenticate the person.

摘要翻译： 一种个人识别方法包括在可见光和近红外光之间切换，从可见光和近红外光下的人获取掌纹图像和手掌静脉图像，基于区域从掌纹图像和手掌静脉图像中提取子图像 从子图像中提取多个特征，并将所提取的多个特征与存储在数据库中的信息进行匹配以验证该人。

公开(公告)号：US20090268951A1

公开(公告)日：2009-10-29

申请号：US12428039

申请日：2009-04-22

申请人： David ZHANG ,  Guangming LU ,  Nan LUO ,  Wei LI ,  Lei ZHANG ,  Vivek KANHANGAD

发明人： David ZHANG ,  Guangming LU ,  Nan LUO ,  Wei LI ,  Lei ZHANG ,  Vivek KANHANGAD

IPC分类号： G06K9/00

CPC分类号： G06K9/00107 ,  G06K9/00087 ,  G06K9/2036

摘要： A biometric identification system (30) for identifying a person, the system (30) comprising: an image acquisition module (31) to capture a three-dimensional (3D) image of a palm of the person; a region of interest (ROI) extraction module (34) to extract a 3D subimage from the captured image; and a 3D features extraction module (36) to extract 3D palmprint features from the 3D subimage; wherein the extracted 3D palmprint features are compared to reference 3D palmprint features to verify the identity of the person.

摘要翻译： 一种用于识别人的生物识别系统（30），所述系统（30）包括：图像获取模块（31），用于捕获所述人的手掌的三维（3D）图像; 感兴趣区域（ROI）提取模块，用于从所捕获的图像提取3D子图像; 和3D特征提取模块（36），用于从3D子图像提取3D掌纹特征; 其中提取的3D掌纹特征与参考3D掌纹特征进行比较以验证该人的身份。