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CN1457987A - Making and identification method for digital water mark certificate with biological information characteristic - Google Patents

Making and identification method for digital water mark certificate with biological information characteristic Download PDF

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CN1457987A
CN1457987A CN 03132424 CN03132424A CN1457987A CN 1457987 A CN1457987 A CN 1457987A CN 03132424 CN03132424 CN 03132424 CN 03132424 A CN03132424 A CN 03132424A CN 1457987 A CN1457987 A CN 1457987A
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information
digital watermark
certificate
biological information
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牛夏牧
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Harbin Institute of Technology Shenzhen
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Harbin Institute of Technology Shenzhen
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Abstract

The making and identification process of digital water mark certificate with biological information characteristic includes: reading out human body's biological information characteristic; converting the human body's biological information characteristic into digital water mark information; embedding the digital water mark information into digital certificate to make entity certificate; reading the entity certificate into digital form; extracting digital water mark information from the certificate and separating out human body's biological information characteristic while in-situ reading out the human body's biological information characteristic of the certificate holder; and comparing the human body's biological information characteristic from the certificate and that from the holder to judge the validity of the certificate. The said method of the present invention has very high safety.

Description

带有生物信息特征数字水印证件的制作和识别方法Method for making and identifying certificates with digital watermarks of biometric information

技术领域：本发明涉及生物信息检测、数字水印技术领域，具体涉及一种带有生物信息特征数字水印证件的制作和识别方法。Technical field: The present invention relates to the technical fields of biological information detection and digital watermarking, in particular to a method for making and identifying certificates with digital watermarks with biological information features.

背景技术：近年来，人们随身持有的各种证件卡片越来越多，例如：护照、身份证、户口簿、驾驶证、银行卡等等，虽然目前的防伪技术在不断进步，但是假证件仍然层出不穷，且制假的技术越来越高。即使是各种数字形式的证件，也有被复制的可能，因为制假者可以通过网络获取各种信息，来制作假证件和假护照等等。这种技术制作出来的假证件目前几乎无法识别，有些人拥有了一些安全部门的假证件，进出国家安全部门，这对国家的安全造成极大的威胁。目前也有利用人体生物特征(指纹、眼虹膜、脸型、嗓音等)技术来对部分人员进行身份验证，但这些生物信息均存在于一定的存储设备中，需要通过网络来识别与联系，非常容易被黑客利用互联网或其他方法窃取修改多媒体信息设备中的数据，造成不安全隐患。Background technology: In recent years, people carry more and more various documents and cards, such as passports, ID cards, household registration books, driver's licenses, bank cards, etc. Although the current anti-counterfeiting technology is constantly improving, fake documents Still emerge in endlessly, and the technology of counterfeiting is getting higher and higher. Even documents in various digital forms may be copied, because counterfeiters can obtain various information through the Internet to make fake documents and passports, etc. The fake documents produced by this technology are almost unrecognizable at present. Some people have fake documents from some security departments and enter and exit the national security departments, which poses a great threat to national security. At present, human biometrics (fingerprint, iris, face shape, voice, etc.) technology is also used to authenticate some personnel, but these biometrics exist in certain storage devices and need to be identified and contacted through the network, which is very easy to be identified and contacted. Hackers use the Internet or other methods to steal and modify data in multimedia information equipment, causing unsafe risks.

发明内容：本发明研制了一种带有生物信息特征数字水印证件的制作和识别方法，本发明具有安全性高、不易复制的优点。本发明的带有生物信息数字水印证件的制作和识别方法包含制作过程和读取识别过程，制作过程如下：1、读取人体生物信息特征(人体生物信息特征包含指纹、眼虹膜、脸型、嗓音等)；2、将人体生物信息特征转换成数字水印信息；3、将数字水印信息嵌入数字形式的证件中；4、将含有数字水印信息的数字形式的证件制作成实物证件。含有数字水印信息的数字形式的证件的读取识别过程如下：11、将含有数字水印信息的实物证件读成数字形式；12、从数字形式的证件中提取数字水印信息，并析出人体生物信息特征；13、现场读取证件持有人的人体生物信息特征；14、对析出的人体生物信息特征与现场读取的证件持有人的人体生物信息特征进行比较判断是否相同；15、如果判断为是，则证件真实有效；否则无效。工作原理：本发明中，将人体生物信息特征转换成数字水印信息，在含有人体生物信息特征的数字水印信息嵌入到证件持有人的证件中，验证证件时读取证件中的数字水印信息，并转换成人体生物信息特征，同时现场读取证件持有人的生物信息特征，将现场读取的证件持有人的生物信息特征与从证件中读取的人体生物信息特征进行比较验证。因为数字水印信息本身和嵌入方法都是加密的，所以本发明中嵌入了证件持有人本人人体生物信息特征水印信息的证件时很难仿制的。而且杜绝了利用他人证件的现象，因为每个人的人体生物信息特征完全相同的机率是非常小的。所以本发明安全性非常高，且极难被仿制、冒充。Summary of the invention: The present invention has developed a method for making and identifying certificates with digital watermarks with biological information features. The present invention has the advantages of high security and difficult duplication. The production and identification method of the digital watermark certificate with biological information of the present invention comprises a production process and a reading identification process, and the production process is as follows: 1. Read human body biological information features (human body biological information features include fingerprints, irises, face shapes, and voices) etc.); 2. Convert human biological information features into digital watermark information; 3. Embed digital watermark information into digital certificates; 4. Make digital certificates containing digital watermark information into physical certificates. The reading and identification process of digital certificates containing digital watermark information is as follows: 11. Read physical certificates containing digital watermark information into digital form; 12. Extract digital watermark information from digital certificates and analyze human biological information characteristics ;13. On-site reading of the human body biological information characteristics of the certificate holder; 14. Comparing the separated human body biological information characteristics and the on-site reading of the human body biological information characteristics of the certificate holder to determine whether they are the same; 15. If it is judged to be If yes, the certificate is true and valid; otherwise, it is invalid. Working principle: In the present invention, human biological information features are converted into digital watermark information, and the digital watermark information containing human biological information features is embedded into the certificate of the certificate holder, and the digital watermark information in the certificate is read when verifying the certificate. And converted into human biological information characteristics, and at the same time read the biological information characteristics of the certificate holder on site, compare and verify the biological information characteristics of the certificate holder read on the spot with the human biological information characteristics read from the certificate. Because the digital watermark information itself and the embedding method are all encrypted, it is difficult to imitate the certificate embedded with the watermark information of the certificate holder's own human body biometric feature in the present invention. Moreover, the phenomenon of using other people's certificates is eliminated, because the probability that everyone's biological information characteristics are exactly the same is very small. Therefore, the security of the present invention is very high, and it is extremely difficult to be imitated or impersonated.

附图说明：图1是本发明带有生物信息特征数字水印证件的制作过程的流程图，图2是本发明带有生物信息特征数字水印证件识别过程的流程图，图3是具体实施方式一中将人体生物信息特征转换成数字水印信息过程的流程图，图4是具体实施方式一中将数字水印信息嵌入数字形式证件过程的流程图，图5是具体实施方式一中从数字形式证件中提取数字水印信息，并析出人体生物信息特征过程的流程图，图6是具体实施方式二中将人体生物信息特征转换成数字水印信息过程的流程图，图7是具体实施方式二中将数字水印信息嵌入数字形式的证件过程流程图，图8是具体实施方式二中从数字形式证件中提取数字水印的信息，并析出人体生物信息特征过程的流程图。Description of the drawings: Fig. 1 is a flow chart of the production process of a certificate with a digital watermark of biometric information features in the present invention, Fig. 2 is a flow chart of the identification process of a certificate with a digital watermark of biometric information features in the present invention, and Fig. 3 is a specific embodiment 1 Fig. 4 is a flowchart of the process of embedding digital watermark information into a digital certificate in the first specific embodiment; Extracting digital watermark information, and analyzing the flow chart of the process of human biological information features, Figure 6 is a flow chart of the process of converting human biological information features into digital watermark information in the second embodiment, Figure 7 is the process of converting the digital watermark information into the second specific embodiment The flow chart of the process of embedding information into a certificate in digital form. FIG. 8 is a flow chart of the process of extracting digital watermark information from a certificate in digital form and extracting human biological information characteristics in Embodiment 2.

具体实施方式一：本具体实施方式带有生物信息特征数字水印证件的制作和识别方法过程，它包含制作过程和读取识别过程，如图1所示，制作过程如下：1、读取人体生物信息特征(人体生物信息特征包含：指纹、眼虹膜、脸型、嗓音等)；2、将人体生物信息特征转换成数字水印信息；3、将数字水印信息嵌入数字形式的证件中，此时的证件是数字媒体形式的；4、将含有数字水印信息的数字形式的证件制作成纸件或其他形式的实物证件。如图2所示，含有生物信息特征数字水印证件的读取识别过程如下：11、将含有数字水印信息的实物证件利用扫描仪或其它设备读成数字形式；12、从数字形式的证件中提取数字水印信息，并析出人体生物信息特征；13、现场读取证件持有人的人体生物信息特征；14、对从证件中析出的人体生物信息特征与现场读取的证件持有人的人体生物信息特征进行比较判断是否相同；15、如果判断为是，则证件真实有效；否则无效。Specific implementation mode one: this specific implementation mode has the production and identification method process of biometric information characteristic digital watermark certificate, it comprises production process and reading identification process, as shown in Figure 1, production process is as follows: 1, read human body biometrics Information features (human biological information features include: fingerprints, iris, face shape, voice, etc.); 2. Convert human biological information features into digital watermark information; 3. Embed digital watermark information into digital certificates. It is in the form of digital media; 4. Make a digital certificate containing digital watermark information into a paper or other form of physical certificate. As shown in Figure 2, the reading and identification process of digital watermark certificates containing biometric information features is as follows: 11. Read the physical certificates containing digital watermark information into digital form using a scanner or other equipment; 12. Extract Digital watermark information, and extract the human biological information characteristics; 13. Read the human biological information characteristics of the certificate holder on site; 14. Compare the human biological information characteristics extracted from the certificate and the human biological information characteristics of the certificate holder read on site The information features are compared to determine whether they are the same; 15. If the judgment is yes, the certificate is authentic and valid; otherwise, it is invalid.

上面所述的步骤2是将人体生物信息特征转换成数字水印信息过程如图3所示，它包含以下步骤：101、取得人体生物信息特征；102、将获得的人体生物信息特征进行信息纠错编码；103、获得数字水印信息。The above-mentioned step 2 is the process of converting the human body biological information features into digital watermark information, as shown in Figure 3, it includes the following steps: 101, obtaining the human body biological information features; 102, performing information error correction on the obtained human body biological information features Encoding; 103. Obtain digital watermark information.

上面所述的步骤3是将数字水印信息嵌入数字形式的证件过程如图4所示。它包含以下步骤：111、取得数字水印信息；112、取得数字形式身份证件的照片部分；113、将照片部分进行离散小波变换；114、按水印信息改变变换系数间的关系；115、进行反变换；117、在进行步骤112的同时取得数字形式的身份证件的文字部分；118、按水印信息改变文字的形状和关系，116、嵌入完成。Step 3 mentioned above is the process of embedding the digital watermark information into the certificate in digital form, as shown in FIG. 4 . It includes the following steps: 111. Obtaining digital watermark information; 112. Obtaining the photo part of the digital identity certificate; 113. Performing discrete wavelet transform on the photo part; 114. Changing the relationship between the transformation coefficients according to the watermark information; 115. Performing inverse transformation ; 117. Obtain the text part of the identity certificate in digital form while performing step 112; 118. Change the shape and relationship of the text according to the watermark information, and 116. Embedding is completed.

上面所述的步骤12是从数字形式的证件中提取数字水印的信息并析出人体生物信息特征过程如图5所示，它包含以下步骤：121、取得数字形式的身份证件；122、取出数字形式身份证件中的照片部分；123、对照片部分进行离散小波变换；124、检测变换系数间的关系；125、提取照片部分的数字水印信息；126、在进行步骤122的同时取出数字形式身份证件中的文字部分；127、检测文字的形状和关系；128、提取文字部分的数字水印信息；129、对从照片中提取的数字水印信息和从文字中提取的数字水印信息进行纠错解码；130、析出人体生物信息特征。本具体实施方式中将数字形式的证件分为两个部分，即照片部分和文字部分别嵌入水印信息，使得证件的安全性非常高。如图4、5所示，本具体实施方式中步骤113中水印嵌入数字式身份证件中将照片部分进行离散小波变换中的离散小波变换也可以用离散余弦变换，同时步骤123中数字水印信息的提取部分也相应利用离散余弦变换。Step 12 mentioned above is to extract the information of the digital watermark from the certificate in digital form and separate out the process of human biological information characteristics as shown in Figure 5. It includes the following steps: 121. Obtain the identity certificate in digital form; 122. Take out the digital form The photo part in the ID card; 123. Carrying out discrete wavelet transform to the photo part; 124. Detecting the relationship between the transformation coefficients; 125. Extracting the digital watermark information of the photo part; 126. Taking out the ID card in digital form while performing step 122 127. Detect the shape and relationship of the text; 128. Extract the digital watermark information of the text part; 129. Perform error correction decoding on the digital watermark information extracted from the photo and the digital watermark information extracted from the text; 130. Extract the characteristics of human biological information. In this embodiment, the certificate in digital form is divided into two parts, that is, the photo part and the text part are respectively embedded with watermark information, so that the security of the certificate is very high. As shown in Figures 4 and 5, in the embodiment, the watermark is embedded in the digital identity certificate in step 113, and the discrete wavelet transform in the discrete wavelet transform of the photo part can also be used for the discrete cosine transform, and the digital watermark information in the step 123 The extraction part also utilizes the discrete cosine transform accordingly.

具体实施方式二：本具体实施方式与具体实施方式一的不同点在于所述的步骤2，将人体生物信息特征转换成数字水印信息过程如图6所示，它包含以下步骤：201、取得人体生物信息特征；202、对人体生物信息特征进行扩频编码和CDMA编码，同时引入伪随机序列生成器；203、对人体生物信息特征编码进行纠错编码；204、得到数字水印信息。Embodiment 2: The difference between this embodiment and Embodiment 1 is that in step 2, the process of converting human body biological information features into digital watermark information is shown in Figure 6, which includes the following steps: 201. Obtaining a human body Biological information characteristics; 202. Perform spread spectrum coding and CDMA coding on human biological information characteristics, and introduce a pseudo-random sequence generator at the same time; 203. Perform error correction coding on human biological information characteristic coding; 204. Obtain digital watermark information.

本实施方式的步骤3是将数字水印信息嵌入数字形式的证件过程如图7所示，它包含以下步骤：211、取得数字水印信息；212、取得数字图片形式的身份证件；213、对身份证件的数字图片边缘与纹理域区进行检测与提取；214、按水印信息的改变提取区域的像素值；215、嵌入完成。Step 3 of this embodiment is the process of embedding digital watermark information into a digital certificate, as shown in Figure 7, which includes the following steps: 211, obtaining digital watermark information; 212, obtaining an identity certificate in the form of a digital image; 213, pairing the identity certificate Detect and extract the edge and texture domain of the digital picture; 214, extract the pixel value of the area according to the change of the watermark information; 215, complete the embedding.

本实施方式的步骤12是从数字形式的证件中提取数字水印的信息并析出人体生物信息特征过程如图8所示，它包含以下步骤：221、取得已嵌入数字水印信息数字图片形式的身份证件；222、对含有数字水印信息的数字图片形式的身份证件进行预测滤波；223、对含数字水印信息的图片进行自相关运算；224、把检测到的信息进行纠错解码；225、对解码后的信息进行解扩频与CDMA解码；226、析出人体生物信息特征。其它步骤与具体实施方式一相同。本具体实施方式将身份证件当作一个整体图片，在这个图片中嵌入人体生物信息特征的数字水印信息有非常高的安全性。Step 12 of this embodiment is to extract the digital watermark information from the certificate in digital form and separate out the process of human biological information characteristics, as shown in Figure 8, it includes the following steps: 221, obtain the identity certificate in the form of a digital picture embedded with digital watermark information ; 222. Perform predictive filtering on ID documents in the form of digital pictures containing digital watermark information; 223. Carry out autocorrelation calculations on pictures containing digital watermark information; 224. Perform error correction decoding on detected information; 225. After decoding Despreading and CDMA decoding of the information; 226, analyzing the characteristics of the biological information of the human body. Other steps are the same as in the first embodiment. In this specific embodiment, the identity document is regarded as an overall picture, and the digital watermark information embedded with the biological information characteristics of the human body in this picture has very high security.

Claims (8)

1、带有生物信息特征数字水印证件的制作方法，其特征在于制作过程如下：(1)、读取人体生物信息特征；(2)、将人体生物信息特征转换成数字水印信息；(3)、将数字水印信息嵌入数字形式的证件中；(4)、将含有数字水印信息的数字形式的证件制作成实物证件。1. A method for making a digital watermark certificate with biological information features, which is characterized in that the production process is as follows: (1), reading the biological information features of the human body; (2), converting the biological information features of the human body into digital watermark information; (3) 1. Embedding the digital watermark information into the certificate in digital form; (4) Making the certificate in digital form containing the digital watermark information into a physical certificate. 2、根据权利要求1所述的带有生物信息特征数字水印证件的制作方法，其特征在于所述的步骤(2)是将人体生物信息特征转换成数字水印信息的过程，它包含以下步骤：(101)、取得人体生物信息特征；(102)、将获得的人体生物信息特征进行信息纠错编码；(103)、获得数字水印信息。2. The method for making a digital watermark certificate with biological information features according to claim 1, wherein said step (2) is a process of converting human biological information features into digital watermark information, which includes the following steps: (101), obtaining human body biological information features; (102), performing information error correction encoding on the obtained human body biological information features; (103), obtaining digital watermark information. 3、根据权利要求1所述的带有生物信息特征数字水印证件的制作方法，其特征在于所述的步骤(3)是将数字水印信息嵌入数字形式的证件的过程，它包含以下步骤：(111)、取得数字水印信息；(112)、取得数字形式的身份证件的照片部分；(113)、将照片部分进行离散小波变换；(114)、按水印信息改变变换系数间的关系；(115)、进行反变换；(116)、嵌入完成；(117)、在进行步骤(112)的同时取得数字形式的身份证件的文字部分；(118)、按水印信息改变文字的形状和关系，(116)、嵌入完成。3. The method for making a digital watermark certificate with biometric information according to claim 1, wherein said step (3) is a process of embedding digital watermark information into a digital certificate, which includes the following steps: ( 111), obtaining digital watermark information; (112), obtaining the photo part of the identity certificate in digital form; (113), carrying out discrete wavelet transform on the photo part; (114), changing the relationship between the transformation coefficients according to the watermark information; (115) ), carry out inverse transformation; (116), embedding is completed; (117), obtain the text part of the identity certificate of digital form while carrying out step (112); (118), change the shape and the relation of text by watermark information, ( 116), the embedding is completed. 4、根据权利要求1所述的带有生物信息特征数字水印证件的制作方法，其特征在于所述的步骤(2)是将人体生物信息特征转换成数字水印信息的过程，它包含以下步骤：(2O1)、取得人体生物信息特征；(202)、对人体生物信息特征进行扩频编码和CDMA编码，同时引入伪随机序列生成器；(203)、对人体生物信息特征编码进行纠错编码；(204)、得到数字水印信息。4. The method for making a digital watermark certificate with biological information features according to claim 1, characterized in that said step (2) is a process of converting human biological information features into digital watermark information, which includes the following steps: (201), obtaining human body biological information characteristics; (202), carrying out spread spectrum coding and CDMA coding to human body biological information characteristics, and introducing a pseudo-random sequence generator simultaneously; (203), carrying out error correction coding to human body biological information characteristic coding; (204), obtaining digital watermark information. 5、根据权利要求1所述的带有生物信息特征数字水印证件的制作方法，其特征在于所述的步骤(3)是将数字水印信息嵌入数字形式的证件的过程，它包含以下步骤：(211)、取得数字水印信息；(212)、取得数字图片形式的身份证件；(213)、对身份证件的数字图片边缘与纹理域区进行检测与提取；(214)、按水印信息的改变提取区域的像素值；(215)、嵌入完成。5. The method for making a digital watermark certificate with biometric information according to claim 1, wherein said step (3) is a process of embedding digital watermark information into a digital certificate, which includes the following steps: ( 211), obtain the digital watermark information; (212), obtain the ID card in the form of a digital image; (213), detect and extract the digital image edge and texture area of the ID card; (214), extract according to the change of the watermark information The pixel value of the region; (215), the embedding is completed. 6、带有生物信息特征数字水印证件的识别方法，其特征在于识别过程如下：(11)、将含有数字水印信息的实物证件读成数字形式；(12)、从数字形式的证件中提取数字水印信息  并析出人体生物信息特征；(13)、现场提取证件持有人的人体生物信息特征；(14)、对析出的人体生物信息特征与现场提取的证件持有人的人体生物信息特征进行比较判断是否相同；(15)、如果判断为是，则证件真实有效；否则无效。6. The identification method of digital watermark certificates with biological information features is characterized in that the identification process is as follows: (11), reading the physical certificates containing digital watermark information into digital form; (12), extracting the digital form from the digital certificate Watermark information and extract the human biological information features; (13), extract the human biological information features of the certificate holder on site; (14), compare the separated human biological information features and the document holder's human biological information features extracted on site Compare and judge whether they are the same; (15), if the judgment is yes, the certificate is true and valid; otherwise, it is invalid. 7、根据权利要求5所述的带有生物信息特征数字水印证件的识别方法，其特征在于所述的步骤(12)是从数字形式的证件中提取数字水印的信息并析出人体生物信息特征的过程，它包含以下步骤：(121)、取得数字形式的身份证件；(122)、取出数字形式身份证件中的照片部分；(123)、对照片部分进行离散小波变换；(124)、检测变换系数间的关系；(125)、提取照片部分的数字水印信息；(126)、在进行步骤(122)的同时取出数字形式身份证件中的文字部分；(127)、检测文字的形状和关系；(128)、提取文字部分的数字水印信息；(129)、对从照片中提取的数字水印信息和从文字中提取的数字水印信息进行纠错解码；(130)、析出人体生物信息特征。7. The identification method of digital watermark certificates with biological information features according to claim 5, characterized in that said step (12) is to extract the information of digital watermarks from the certificates in digital form and separate out the biological information features of human body process, it comprises the following steps: (121), obtain the ID card in digital form; (122), take out the photo part in the digital form ID card; (123), carry out discrete wavelet transform to the photo part; (124), detect transformation The relationship between the coefficients; (125), extracting the digital watermark information of the photo part; (126), taking out the text part in the digital form ID card while performing step (122); (127), detecting the shape and relationship of the text; (128), extract the digital watermark information of the text part; (129), perform error correction decoding on the digital watermark information extracted from the photo and the digital watermark information extracted from the text; (130), separate out the characteristics of human biological information. 8、根据权利要求5所述的带有生物信息特征数字水印证件的识别方法，其特征在于所述的步骤(12)是从数字形式的证件中提取数字水印的信息并析出人体生物信息特征的过程，它包含以下步骤：(221)、取得已嵌入数字水印信息数字图片形式的身份证件；(222)、对含有数字水印信息的图片形式的身份证件进行预测滤波；(223)、对含数字水印信息的图片进行自相关运算；(224)、把检测到的信息进行纠错解码；(225)、对解码后的信息进行解扩频与CDMA解码；(226)、析出人体生物信息特征。8. The identification method for digital watermark certificates with biometric information features according to claim 5, characterized in that the step (12) is to extract the information of the digital watermark from the certificates in digital form and extract the biometric information characteristics of the human body process, which includes the following steps: (221), obtaining an identity document in the form of a digital picture embedded with digital watermark information; (222), performing predictive filtering on the identity document in the form of a picture containing digital watermark information; (223), filtering the identity document containing digital watermark information Carry out autocorrelation calculation on the picture of the watermark information; (224), perform error correction decoding on the detected information; (225), perform despreading and CDMA decoding on the decoded information; (226), analyze human biological information characteristics.
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1889428B (en) * 2006-08-01 2010-06-09 西南交通大学 The method of secure hidden transmission of biometric data in network environment
CN102371804A (en) * 2010-08-07 2012-03-14 韩春寅 Artistic ceramic name card with human body biological information and its making method and use
CN102456130A (en) * 2010-11-01 2012-05-16 厦门爱登特科技有限公司 Method and system for checking user identity document through face
CN106183576A (en) * 2016-07-25 2016-12-07 杭州吉赛贸易有限公司 Based on fingerprint or the engraving process of iris image and engraving manufacturing system
US9612375B2 (en) 2008-03-11 2017-04-04 Rolic Ltd. Optical biometric security element
CN107680218A (en) * 2017-09-26 2018-02-09 成都优易数据有限公司 Safety inspection method and system based on multi-biometric feature recognition Yu instantaneous license technology
CN108959862A (en) * 2018-07-11 2018-12-07 南京环印防伪科技有限公司 A kind of license method for anti-counterfeit based on digital watermarking and smart phone

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1889428B (en) * 2006-08-01 2010-06-09 西南交通大学 The method of secure hidden transmission of biometric data in network environment
US9612375B2 (en) 2008-03-11 2017-04-04 Rolic Ltd. Optical biometric security element
CN102371804A (en) * 2010-08-07 2012-03-14 韩春寅 Artistic ceramic name card with human body biological information and its making method and use
CN102456130A (en) * 2010-11-01 2012-05-16 厦门爱登特科技有限公司 Method and system for checking user identity document through face
CN106183576A (en) * 2016-07-25 2016-12-07 杭州吉赛贸易有限公司 Based on fingerprint or the engraving process of iris image and engraving manufacturing system
CN107680218A (en) * 2017-09-26 2018-02-09 成都优易数据有限公司 Safety inspection method and system based on multi-biometric feature recognition Yu instantaneous license technology
CN108959862A (en) * 2018-07-11 2018-12-07 南京环印防伪科技有限公司 A kind of license method for anti-counterfeit based on digital watermarking and smart phone

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