CN103793677A - Method for information extraction and identity authentication by identifying raster graphics - Google Patents
Method for information extraction and identity authentication by identifying raster graphics Download PDFInfo
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Abstract
The invention provides a method for information extraction and identity authentication by identifying raster graphics. The method comprises the steps that the raster graphics are read, and obtained images are fed back; the fed-back images are automatically processed and placed in a cache; the images in the cache are analyzed and verified, so that code value information corresponding to the images is generated; information files corresponding to the code value information are found in a code value data base and extracted; the information files are decoded, so that multi-media files are formed, and the multi-media files correspond to the information files and comprise identity authentication information; the multi-media files are played, so that identity information of products corresponding to the raster graphics is obtained. According to the method, the raster graphics replace existing RFID labels and other modes, the method, the digital technique and the network technique are combined, and the method has the advantages of being low in printing cost, terminal manufacturing cost and enterprise operating cost, and achieving user inquiry mode convenience, and effectively achieves the effects of copying difficulty, low price and identifying convenience.
Description
Technical field
The present invention relates to a kind of Antiforge recognizing method, especially a kind of by identifying dot pattern to carry out information extraction and identity mirror method for distinguishing.
Background technology
At present, have on the market that anti-counterfeiting technology is generally divided into that common false proof, code anti-fake, DNA are false proof, nuclear track, laser holographic anti counterfeiting label and OVD technology, false proof, false proof anti-technology, RFID label and the safety line of taking off of ink be false proof.
But the weak point of above anti-counterfeiting technology is as follows:
1, common false proof, exist inquiry convenience inadequate, the problems such as continuous-query and consumer easily dial a wrong number cannot be preserved, can not be solved to Query Result;
, because its technology content is not high, itself there is easy stolen code, copy a yard serious technological deficiency of carrying out batch duplicating in 2, code anti-fake, is easily utilized by fraud clique, causes false proof inefficacy, and user enterprise has been produced to great negative effect;
3, DNA is false proof, and its false proof uniqueness is higher, but expensive, so the market share occupying is minimum, is unfavorable for the true and false of consumer's Direct Test product;
4, nuclear track, its maximum weak point is to reuse, and only need to, by clean the mark marking with pen etc. clean, just can reuse, and does not have the uniqueness of anti-fake mark, has left opportunity to fake producer;
5, laser holographic anti counterfeiting label and OVD technology, due to its mismanagement, the laser holographic mark that some are inferior and the mark of emulation are infiltrated market, and result is really untrue, and false is not false, has ruined the reputation of laser holographic anti counterfeiting label;
6, ink is false proof, and along with increasing of anti-forgery ink manufacturer, the effect of this anti-counterfeiting technology has not just had effect that anti-counterfeiting is of poor quality yet;
7, false proofly anti-take off technology, because manufacturer is a lot, do not possess uniqueness, do not get rid of producer and provide convenience for fake producer for interests;
8, RFID label, comparatively extensive in industry uses such as admission ticket, electronics, jewelry at present, but expensive, be not suitable in low side commodity and use on a large scale;
9, safety line is false proof, and because there are very strict administration and regulation limitations in country to paper mill in safety line paper production, therefore its application is also restricted.
Based on above-mentioned weak point, be badly in need of occurring a kind of anti-counterfeit recognition technology that can solve above-mentioned shortcoming.
Summary of the invention
For the weak point existing in the problems referred to above, the invention provides a kind ofly have that printing cost is low, the advantage such as terminal low cost of manufacture, company operation cost are low, user's inquiry mode pass through identification dot pattern to carry out information extraction and the identity method for distinguishing that reflects.
For achieving the above object, the invention provides one by identifying dot pattern to carry out information extraction and identity mirror method for distinguishing, comprise the following steps:
S10, infrared reading device send Infrared dot pattern are read, and when Infrared arrives at behind dot pattern surface, to obtain the image of dot pattern, and image are fed back;
S20, utilize infrared reading device to feedback image carry out automatic exposure processing so that the grey level of image reaches preset range, and put it into buffer memory;
S30, the image in buffer memory is resolved and CRC check, to form code value information corresponding thereto;
S40, in code value database, search the message file corresponding with code value information, and information extraction file;
S50, to message file decode to form corresponding thereto, with the multimedia file of identity authentication information;
S60, play multimedia file, to learn the identity information of the product corresponding with dot pattern.
Above-mentioned passes through identification dot pattern to carry out information extraction and identity mirror method for distinguishing, and wherein, in step S20, the step that image is carried out automatically processing comprises:
Filter out unnecessary spectrum;
Catch residue spectrum;
Regulate time shutter and figure frame per second, the brightness of image of the full graphics frame capturing is reached so that the grey level of image reaches between 110～200.
Above-mentioned passes through identification dot pattern to carry out information extraction and identity mirror method for distinguishing, and wherein, in step S30, the code value information obtaining after parsing and verification comprises that file starts field, header information and data message.
Above-mentioned passes through identification dot pattern to carry out information extraction and identity mirror method for distinguishing, wherein, in step S40, comprises the following steps:
S400, by buffer memory extract resolve with check after code value information;
S401, judge within the scope of the code value whether current code value information store in code value database, if the determination result is YES, carry out S402, if if judged result be, perform step S403, feedback code value information is invalid, judges that article are as vacation;
S402, code value database is scanned to form header index file group;
S404, judge in header index file group whether include the header index file corresponding with current code value information, if the determination result is YES, perform step S405, if judged result is no, perform step S406, feedback code value information is invalid, judges that article are as vacation;
S405, judge in header index file whether include the message file corresponding with current code value information, if the determination result is YES, perform step S407, if judged result is no, perform step S408, feedback code value information is invalid, judges that article are as vacation;
S409, by extraction document handle in message file;
S410, judge that whether header information (FileHeader) in current code value information is encrypt file, if the determination result is YES, perform step S411, if judged result is no, carry out S412;
S411, be decrypted according to the encryption type of the header information (FileHeader) in current code value information;
S412, select corresponding data directory to calculate message file according to message file, to obtain message file after treatment.
Above-mentioned passes through identification dot pattern to carry out information extraction and identity mirror method for distinguishing, and wherein, in step S411, the encryption and decryption mode of header information is the one in xTEA encryption and decryption mode, TEA encryption and decryption mode or AES encryption and decryption mode.
Above-mentioned passes through identification dot pattern to carry out information extraction and identity mirror method for distinguishing, wherein, in step S50, comprises the following steps:
S500, extract through step S40 current information file after treatment, and import in data distribution device;
S501, judge whether to be decrypted it according to the type of current information file in data distribution device, if judge, the type of current information file is text, performs step S60, if judge, the type of current information file is non-document file, carry out S502, it is decoded;
S502, decode according to current non-document file, to form the multimedia file with identity authentication information.
Above-mentioned passes through identification dot pattern to carry out information extraction and identity mirror method for distinguishing, wherein, in step S502, is the one in xTEA decoding process, TEA decoding process or AES decoding process to the decoding process of non-document file.
Compared with prior art, the present invention has the following advantages:
1, the present invention adopts dot pattern to replace the modes such as existing RFID label, and combine with digital technology, network technology, have that printing cost is low, terminal low cost of manufacture, company operation cost are low, user's inquiry mode advantage easily, effectively reach the false proof object of transreplication not, inexpensive, convenient identification, can be widely used in logistic management system, be regarded as one of direction of in the future false proof, logistics management;
2, owing to adopting multistage determining step, therefore, can improve the security performance of operation steps.
Accompanying drawing explanation
Fig. 1 is the process flow diagram in the present invention;
Fig. 2 is the structured flowchart of code value information in the present invention;
Fig. 3 is the particular flow sheet of step S40 in Fig. 1;
Fig. 4 is the particular flow sheet of step S50 in Fig. 1.
Embodiment
As shown in Figures 1 to 4, the invention provides one by identifying dot pattern to carry out information extraction and identity mirror method for distinguishing, comprise the following steps:
S10, infrared reading device send Infrared dot pattern are read, and when Infrared arrives at behind dot pattern surface, to obtain the image of dot pattern, and image are fed back.
S20, utilize infrared reading device to feedback image carry out automatic exposure processing so that the grey level of image reaches preset range, and put it into buffer memory.
Wherein, step S20 comprises:
Filter out unnecessary spectrum by optical filter;
Catch residue spectrum by optical lens;
When the exposure of adjustable lens and figure frame per second, the grey level of the image of the full graphics frame capturing is reached between 110～200.
S30, the image in buffer memory is resolved and CRC check, to form code value information corresponding thereto.
Wherein, in step S30, the code value information obtaining after parsing and verification comprises that file starts field (FileBeginFields), header information (FileHeader) and data message, and data message comprises code value concordance list (CodeIndexTable), code value bulleted list (CodeTable), RAW data item table (RawDataItemTable) and resource/RAW data (Resource/RawData).
S40, in code value database, search the message file corresponding with code value information, and information extraction file.
Wherein, in step S40, comprise the following steps:
S400, by buffer memory extract resolve with check after code value information.
S401, judge within the scope of the code value whether current code value information store in code value database, if the determination result is YES, carry out S402, if if judged result be, perform step S403, feedback code value information is invalid, judges that article are as vacation.
Code value database is not before upgrading, the code value scope of its storage inside is fixed, if the code value information drawing is not included in code value database, even if this code value information is real, in S401, can judge successively that this code value information is as invalid code value after resolving and checking.
S402, code value database is scanned to form header index file group.
S404, judge in header index file group whether include the header index file corresponding with current code value information, if the determination result is YES, perform step S405, if judged result is no, perform step S406, feedback code value information is invalid, judges that article are as vacation.
S405, judge in header index file whether include the message file corresponding with current code value information, if the determination result is YES, perform step S407, if judged result is no, perform step S408, feedback code value information is invalid, judges that article are as vacation.
S407, by extraction document handle in message file.
S409, judge that whether header information (FileHeader) in current code value information is encrypt file, if the determination result is YES, perform step S410, if judged result is no, play.
S410, be decrypted according to the encryption type of the header information (FileHeader) in current code value information; Wherein, the encryption and decryption mode of header information is the one in xTEA encryption and decryption mode, TEA encryption and decryption mode or AES encryption and decryption mode.
The header information encrypted of judgement belongs to any in above-mentioned three kinds of cipher modes, and carries out deciphering corresponding thereto according to corresponding cipher mode.
S411, select corresponding data directory to calculate message file according to message file, to obtain message file after treatment.
Wherein, data directory is divided into Hash table, simple in-order table and increment sequence list, showing corresponding algorithm with Hash is Hash location algorithm, and the algorithm corresponding with simple in-order table is simple tab order algorithm, and the algorithm corresponding with increment sequence list is increment sequential algorithm.
S50, to message file decode to form corresponding thereto, with the multimedia file of identity authentication information;
Wherein, in step S50, comprise the following steps:
S500, the current information file of extraction behind step S40 location, and imported in data distribution device.
S501, judge whether to be decrypted it according to the type of current information file in data distribution device, if judge, the type of current information file is text, performs step S60, if judge, the type of current information file is non-document file, carry out S502, it is decoded.
Wherein, include identity authentication information in text, this health authentication information is that article corresponding with dot pattern are corresponding.
S502, decode according to current non-document file, to form the multimedia file with identity authentication information.
Wherein, in step S502, be the one in xTEA decoding process, TEA decoding process or AES decoding process to the decoding process of non-document file.
If not the type of text is picture file, adopt picture demoder to decode to it;
If not the type of text is video file, adopt Video Decoder to decode to it;
If not the type of text is audio file, adopt audio decoder to decode to it.
S60, play multimedia file, to learn the identity information of the product corresponding with dot pattern.
Wherein, if be text with the file type of identity authentication information, directly show by display screen;
If the file type with identity authentication information is picture file, directly show by display screen;
If be video file with the file type of identity authentication information, its image section directly shows by display screen, and sound part is exported by power amplifier loudspeaker;
If be audio file with the file type of identity authentication information, export by power amplifier loudspeaker.
In addition, the dot pattern in the present invention cannot be differentiated with designated shape and naked eyes, and its useful area is not less than 3*3 square millimeter.Because the area of dot pattern is less, therefore, dot pattern is being attached to after article surface, can not impact its outward appearance.
The information point that this dot pattern is 30～40 microns by least one group of diameter rearranges by rule, and with the shape of specifying.Because the diameter of information point is small, and be preset with corresponding spacing distance between two adjacent information points, after the mode that is copied or scans copies, distance between adjacent two information points can be found deviation, the shape of specifying also can change, thereby form the invalid code that cannot be identified, therefore, the position of information point and the distance between the two can improve the anti-counterfeiting performance of dot pattern.In two adjacent information points, the spacing between the center of center to the second information point of being put by the first information is 80 microns.Information point in this dot pattern comprises direction reference point, center reference point and check code.
Dot pattern adopts the coating that can be identified by naked eyes invisible light to be attached on the white space of carrier, one in the visible coating that the coating that can be identified by naked eyes invisible light is carbon containing or the invisible coating of carbon containing, visible ink or ink that the visible coating of carbon containing is carbon containing, the colorless ink that the invisible coating of carbon containing is carbon containing or ink.Due to visible ink or the ink of carbon containing, and the colorless ink of carbon containing or ink can absorb the infrared ray of specific band, therefore, only has infrared ray recognition device to identify the information in label layer.
Only as described above, be only preferred embodiment of the present invention, such as professional who are familiar with this art.After understanding technological means of the present invention, natural energy, according to actual needs, is changed under instruction of the present invention.Therefore all equal variation and modifications of doing according to the present patent application the scope of the claims, once should still remain within the scope of the patent.
Claims (7)
1. by identifying dot pattern to carry out information extraction and an identity mirror method for distinguishing, comprise the following steps:
S10, infrared reading device send Infrared dot pattern are read, and when Infrared arrives at behind dot pattern surface, to obtain the image of dot pattern, and image are fed back;
S20, utilize infrared reading device to feedback image carry out automatic exposure processing so that the grey level of image reaches preset range, and put it into buffer memory;
S30, the image in buffer memory is resolved and CRC check, to form code value information corresponding thereto;
S40, in code value database, search the message file corresponding with code value information, and information extraction file;
S50, to message file decode to form corresponding thereto, with the multimedia file of identity authentication information;
S60, play multimedia file, to learn the identity information of the product corresponding with dot pattern.
According to claim 1 by identification dot pattern to carry out information extraction and identity mirror method for distinguishing, it is characterized in that, in step S20, the step of image being carried out to processing automatically comprises:
Filter out unnecessary spectrum;
Catch residue spectrum;
Regulate time shutter and figure frame per second, the gradation of image rank of the full graphics frame capturing is reached between 110～200.
3. according to claim 1 by identifying dot pattern to carry out information extraction and identity mirror method for distinguishing, it is characterized in that, in step S30, the code value information obtaining after parsing and verification comprises that file starts field, header information and data message, and described data message comprises code value concordance list, code value bulleted list, RAW data item table and resource/RAW data.
According to claim 1 by identification dot pattern to carry out information extraction and the identity method for distinguishing that reflects, it is characterized in that, in step S40, comprise the following steps:
S400, by buffer memory extract resolve with check after code value information;
S401, judge within the scope of the code value whether current code value information store in code value database, if the determination result is YES, carry out S402, if if judged result be, perform step S403, feedback code value information is invalid, judges that article are as vacation;
S402, code value database is scanned to form header index file group;
S404, judge in header index file group whether include the header index file corresponding with current code value information, if the determination result is YES, perform step S405, if judged result is no, perform step S406, feedback code value information is invalid, judges that article are as vacation;
S405, judge in header index file whether include the message file corresponding with current code value information, if the determination result is YES, perform step S407, if judged result is no, perform step S408, feedback code value information is invalid, judges that article are as vacation;
S409, by extraction document handle in message file;
S410, judge that whether header information (FileHeader) in current code value information is encrypt file, if the determination result is YES, perform step S411, if judged result is no, carry out S412;
S411, be decrypted according to the encryption type of the header information (FileHeader) in current code value information;
S412, select corresponding data directory to calculate message file according to message file, to obtain message file after treatment.
5. identify dot pattern to carry out information extraction and identity mirror method for distinguishing according to passing through described in claim 4, it is characterized in that, in step S411, the encryption and decryption mode of header information is the one in xTEA encryption and decryption mode, TEA encryption and decryption mode or AES encryption and decryption mode.
According to claim 1 by identification dot pattern to carry out information extraction and the identity method for distinguishing that reflects, it is characterized in that, in step S50, comprise the following steps:
S500, extract through step S40 current information file after treatment, and import in data distribution device;
S501, judge whether to be decrypted it according to the type of current information file in data distribution device, if judge, the type of current information file is text, performs step S60, if judge, the type of current information file is non-document file, carry out S502, it is decoded;
S502, decode according to current non-document file, to form the multimedia file with identity authentication information.
7. according to claim 6 by identifying dot pattern to carry out information extraction and identity mirror method for distinguishing, it is characterized in that, in step S502, be the one in xTEA decoding process, TEA decoding process or AES decoding process to the decoding process of non-document file.
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| CN104376354A (en) * | 2014-11-14 | 2015-02-25 | 深圳三元色数码科技有限公司 | Dot-matrix graphic, constructing method for dot-matrix graphic and method for identifying true dot-matrix graphic |
| CN106060806A (en) * | 2016-05-24 | 2016-10-26 | 中国科学院信息工程研究所 | Public/secret communication identification method applicable to circuit domain encrypted communication |
| JP2018518919A (en) * | 2015-09-17 | 2018-07-12 | シェンゼン・キアンハイ・クアンタム・クラウド・テクノロジー・カンパニー・リミテッド | Anti-counterfeiting method |
| CN112447274A (en) * | 2020-11-17 | 2021-03-05 | 北京全域医疗技术集团有限公司 | Verification method and device for radiotherapy dose and computer equipment |
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Effective date of registration: 20191105 Address after: Room 10602, Building 1, Wangjing International Building, Fengcheng Sixth Road, Xi'an Economic and Technological Development Zone, Shaanxi 710000 Patentee after: SHAANXI ZHUANYI INTELLECTUAL PROPERTY OPERATION CO.,LTD. Address before: 100081 Beijing city Haidian District Daliushu Road No. 17 Fu Hai Hong Kong International room 803 Patentee before: LEADER TECH DIGITAL TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20191111 Address after: 215400 A, building 88, Beijing East Road, Taicang Development Zone, Suzhou, Jiangsu Patentee after: Suzhou Desmir Intelligent Technology Co.,Ltd. Address before: Room 10602, Building 1, Wangjing International Building, Fengcheng Sixth Road, Xi'an Economic and Technological Development Zone, Shaanxi 710000 Patentee before: SHAANXI ZHUANYI INTELLECTUAL PROPERTY OPERATION CO.,LTD. |
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Denomination of invention: A method of information extraction and identification by recognizing dot matrix graphics Effective date of registration: 20220630 Granted publication date: 20160817 Pledgee: China Construction Bank Taicang branch Pledgor: Suzhou Desmir Intelligent Technology Co.,Ltd. Registration number: Y2022980009615 |