CN101848257A - Mobile terminal - Google Patents
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- CN101848257A CN101848257A CN200910080697A CN200910080697A CN101848257A CN 101848257 A CN101848257 A CN 101848257A CN 200910080697 A CN200910080697 A CN 200910080697A CN 200910080697 A CN200910080697 A CN 200910080697A CN 101848257 A CN101848257 A CN 101848257A
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Abstract
The invention discloses a mobile terminal, which comprises an image acquisition device and an anti-counterfeiting detection device, wherein the anti-counterfeiting detection device is used for analyzing images, acquired by the image acquisition device, of anti-counterfeiting characteristic points to identify the authenticity of the anti-counterfeiting characteristic points. When used for performing anti-counterfeiting detection, the mobile terminal can identify one or more anti-counterfeiting characteristics in an image processing mode so as to greatly improve anti-counterfeiting detection accuracy; if the number of the identified anti-counterfeiting characteristic points is larger, the identification effect of the anti-counterfeiting detection is better; moreover, the mobile terminal of the embodiment can enable users to perform the anti-counterfeiting detection anytime anywhere so as to bring great convenience to the users.
Description
Technical field
The invention belongs to the anti-counterfeiting detection technical field, relate in particular to a kind of portable terminal with anti-counterfeiting detection function.
Background technology
Though existing all kinds of cash inspecting machines have the function of distinguish true from false paper money and marketable securities at present, its volume is bigger, and general is used in finance or market, be not easy to carry.Like this, people can not detect true and false paper money and marketable securities in real time when carrying out commodity transaction, bring certain inconvenience for the discriminating of true and false paper money and marketable securities, especially mobile bigger place or industry, the place that occurs counterfeit money and pseudo-marketable securities as market of farm produce etc. especially easily, bring certain loss to people, also give the people who uses counterfeit money or false marketable securities with opportunity.
Banknote and marketable securities are provided with multiple anti-forgery feature point, as the fluorescence falsification preventing technology of common employing.At present the anti-counterfeiting technology of using has long and short ripple fluorescence falsification preventing technology and other visible light, infrared light anti-counterfeiting technology, general wavelength is in 200 nanometers-2000 nanometer range, that is to say that banknote and marketable securities are provided with the sensitive part that need could occur photosensitive variation by the illumination of respective wavelength and corresponding energy, such sensitive part is positioned at the ad-hoc location on banknote and the marketable securities, the true and false of banknote and marketable securities is discerned or judged to modes such as the corresponding photosensitive variation of sensitive part can be passed through range estimation, and is machine-readable.Disclosed the technology that adds distinguish true from false paper money and marketable securities checkout gear at portable terminal in the patent that be 02252815.6 in the patent No., name is called the portable terminal cash inspecting machine, this technology is utilized the luminescent device irradiation sensitive part of privileged site sensitive wave length on true and false paper money and the marketable securities, combines with existing portable terminal and tells truth from falsehood according to sensitive part variation accordingly.
Existing the portable terminal infrared or ultraviolet source that has been integrated with cash inspecting machine, no matter adopt the technology of long and short ripple fluorescence falsification preventing still to adopt other visible light, the false proof technology of infrared light to distinguish banknote and marketable securities, perhaps true and false coin image is presented on the mobile terminal display screen, finally all need to rely on human eye to judge the true and false, and be not the true and false of judging banknote and marketable securities veritably by portable terminal.
Summary of the invention
In view of this, technical problem to be solved by this invention provides a kind of portable terminal with anti-counterfeiting detection function, and the user is freed from human eye is judged, accomplishes to be differentiated by portable terminal the true and false of banknote and marketable securities veritably.So not only can improve the accuracy that the true and false of banknote and marketable securities is differentiated, and can make people carry out anti-counterfeiting detection to banknote and marketable securities etc. whenever and wherever possible.
In some optional embodiments, described portable terminal comprises image collecting device, also comprises an anti-counterfeiting detecting device, is used for the image of the anti-forgery feature point of described image collecting device collection is analyzed, and differentiates the true and false of anti-forgery feature point.
When adopting the described portable terminal of the foregoing description to carry out anti-counterfeiting detection,, adopt software mode that the image of one or more anti-counterfeiting characteristics is handled, discern the false from the genuine, finish detection by camera and the processor that carries on the portable terminal.Adopt the described portable terminal of the foregoing description to carry out anti-counterfeiting detection, do not need to finish detection by human eye.In most of the cases, do not need to detect infrared and the ultraviolet feature, just do not need to design or buy special-purpose portable terminal yet; Detect at needs under the condition of infrared and ultraviolet, need improve portable terminal, but finish that the true and false detects remain portable terminal itself, rather than finish discriminating by human eye.In addition, adopt the described portable terminal of the foregoing description can also improve the accuracy of anti-counterfeiting detection greatly, the anti-forgery feature point of discriminating is many more, and the identification result of anti-counterfeiting detection is also just good more.And, adopt the described portable terminal of the foregoing description can make people carry out anti-counterfeiting detection whenever and wherever possible, bring great advantage to the user.
Figure of description
Fig. 1 is a kind of structural representation of portable terminal provided by the invention;
Fig. 2 is the another kind of structural representation of portable terminal provided by the invention;
Fig. 3 is a kind of structural representation of anti-counterfeiting detecting device;
Fig. 4 is the another kind of structural representation of anti-counterfeiting detecting device;
Fig. 5 is the another kind of structural representation of anti-counterfeiting detecting device;
Fig. 6 is a kind of structural representation of pretreatment unit;
Fig. 7 is a kind of structural representation of discriminating unit;
Fig. 8 is the another kind of structural representation of anti-counterfeiting detecting device;
Fig. 9 is a kind of flow chart of false-proof detection method.
Embodiment
Fig. 1 shows a kind of structure of portable terminal.As shown in Figure 1, portable terminal 100 comprises camera S11, anti-counterfeiting detecting device S12 and display screen S13.Camera S11 is used for IMAQ, and display screen S13 is used for display message, and anti-counterfeiting detecting device S12 is used for the image of anti-forgery feature point that camera S11 is gathered and analyzes, and differentiates the true and false of anti-forgery feature point.The identification result of anti-counterfeiting detecting device S12 can be shown to the user by display screen S13.
The mode that the identification result of anti-counterfeiting detecting device S12 is fed back to the user has a lot, and Fig. 1 only shows a kind of optional mode.Another kind of optionally mode is the loud speaker by portable terminal, in the mode of sound the identification result of anti-counterfeiting detecting device S12 is fed back to the user, as shown in Figure 2.Another optional mode is, special-purpose indicator light or warning device are set on portable terminal, and indication or warning device by indicator light feed back to the user with testing result.
So-called anti-forgery feature point mainly is meant anti-counterfeiting information, the information that just is used for anti-counterfeiting detection includes but not limited to be color shifting ink, hologram image, stealthy denomination numeral, fixedly portrait watermark, plain boiled water seal, ultraviolet image, infrared image, yin yang complementarity to impression case, offset printing microfilm of characters, a kind of in even numbers sign indicating number and the infrared laser irradiation extraordinary mark down or make up anyhow.
Wherein, the mode of the image of anti-forgery feature point being analyzed discriminating has a lot, and the implementation of anti-counterfeiting detecting device also has a lot.Those skilled in the art owing to can not might implementation carry out description one by one, so only provide some exemplary embodiment here and illustrate, so that can intactly implement technical scheme of the present invention to the institute of anti-counterfeiting detecting device.
Fig. 3 shows a kind of optional structure of anti-counterfeiting detecting device.As shown in Figure 3, anti-counterfeiting detecting device S12 comprises a pretreatment unit S31 and at least one discriminating unit S32.The image that pretreatment unit S31 is used for gathering at camera S11 is discerned the image of each anti-forgery feature point, and the image of each anti-forgery feature point that will identify sends to a corresponding discriminating unit S32 respectively.Each discriminating unit S32 is used for the image of a specific anti-forgery feature point is differentiated.A plurality of discriminating unit S32 then can differentiate a plurality of anti-forgery feature point respectively.By display screen and/or loud speaker, or other modes, anti-counterfeiting detecting device S12 feeds back to the user with the identification result of each discriminating unit S32.
Fig. 4 shows the another kind of optionally structure of anti-counterfeiting detecting device.As shown in Figure 4, anti-counterfeiting detecting device S12 comprises a pretreatment unit S31, at least one discriminating unit S32 and a decision mechanism cell S 41.Decision mechanism cell S 41 is used to analyze the identification result of each discriminating unit S32 output, and when the identification result of all anti-forgery feature point all be a true time, the court verdict of decision mechanism cell S 41 be very, otherwise the court verdict of decision mechanism cell S 41 is vacation.By display screen and/or loud speaker, or other modes, anti-counterfeiting detecting device S12 feeds back to the user with the court verdict of decision mechanism cell S 41.
Fig. 5 shows the another kind of optionally structure of anti-counterfeiting detecting device.As shown in Figure 5, anti-counterfeiting detecting device S12 comprises a pretreatment unit S31, at least one discriminating unit S32 and an adulterium mode determining unit S51.Adulterium mode determining unit S51 is used for determining for the distribution situation of false anti-forgery feature point according to identification result the adulterium mode of banknote.By display screen and/or loud speaker, or other modes, anti-counterfeiting detecting device S12 feeds back to the user with definite result of adulterium mode determining unit S51.
The so-called adulterium be meant, on the basis of genuine note, utilizes and mend, take off page or leaf by replacing a damaged part, alter, piece together, be shifted, reprint etc. several different methods is made, and changes the counterfeit money of the original form of genuine note.Adulterium coin to genuine note adulterium back acquisition, because some is a genuine note, so when adopting prior art only a certain anti-counterfeiting characteristic on the adulterium coin to be differentiated, if this anti-counterfeiting characteristic is positioned at the genuine note part of adulterium coin, then this device can be differentiated the adulterium coin and be genuine note, thereby has influenced identification result.
As can be seen, the another kind of optionally structure of anti-counterfeiting detecting device can comprise a pretreatment unit S31, at least one discriminating unit S32, a decision mechanism cell S 41 and an adulterium mode determining unit S51.
Fig. 6 shows a kind of optional structure of pretreatment unit.As shown in Figure 6, pretreatment unit S31 comprises feature location cell S 61, filtering and noise reduction cell S 62 and feature extraction unit S63.Feature location cell S 61 the front end camera collection to image basis on, the anti-forgery feature point position of accurately orienting required identification; The interference noise that 62 filterings of filtering and noise reduction cell S are possible; Feature extraction unit S63 partly separates background parts with anti-forgery feature point, obtains the view data of anti-forgery feature point.
Fig. 7 shows a kind of optional structure of discriminating unit.As shown in Figure 7, each discriminating unit S32 is made up of graphics processing unit S71, matching treatment algorithm device S72 and the threshold analysis cell S 73 of series connection.Graphics processing unit S71 is by the graphics process of shaping and Sampling techniques, forms not only to keep the graphic feature of anti-forgery feature point but also the vector signal or the characteristic matrix of amount of compressed data.Matching treatment algorithm device S72 utilizes the vector signal or the characteristic matrix that prestore that vector signal or the characteristic matrix that graphics processing unit S71 obtains carried out matching treatment.Threshold analysis cell S 73 is used for characteristic matrix after the matching treatment algorithm device S72 matching treatment and the threshold matrix contrast that prestores are done relative error analysis and total statistical analysis to the matrix interior element again, obtains final identification result.
The user is when utilizing the disclosed portable terminal of above-mentioned enforcement to carry out anti-counterfeiting detection, camera S11 can be placed on different positions and different angles at the different anti-forgery feature point of detected material (for example bank note), gather the image of the one or more anti-forgery feature point on the detected material respectively, and characteristic image that will be to be recognized changes into the basic digital signal that can supply Computer Processing.For example, utilize camera S11 to gather image, hologram image and the stealthy denomination numeral of color shifting ink in the bank note.The image of pretreatment unit S31 each anti-forgery feature point of identification in the image that camera S11 gathers, and image, hologram image and the stealthy denomination numeral of the color shifting ink that identifies sent to corresponding discriminating unit S32 respectively.
The image of color shifting ink, hologram image and stealthy denomination numeral are sent to corresponding graphics processing unit S71 respectively.Each graphics processing unit S71 carries out graphics process to image, hologram image and the stealthy denomination numeral of color shifting ink respectively, forms the graphic feature that had both kept anti-forgery feature point, again the vector signal of amount of compressed data or characteristic matrix.
Wherein, identical vector signal or characteristic matrix be can define, different vector signals or characteristic matrix also can be defined at different anti-forgery feature point.Preferred mode is, according to specific requirement, at different different vector signal or the characteristic matrixes of anti-forgery feature point definition.
With 100 yuans is example:
At color shifting ink, graphics processing unit S71 at first removes in the image unwanted edge around the color shifting ink figure, thereby is shaped to the essential characteristic figure of color shifting ink.Color shifting ink denomination numeral in this essential characteristic figure is carried out data acquisition, obtain original R (red), G (green), B (indigo plant) data matrix, again R, G, B data matrix are passed through to change, obtain reacting H, S, the V color characteristic data matrix of color shifting ink essence color characteristic.
At hologram image, graphics processing unit S71 at first removes hologram image unwanted edge on every side, thereby is shaped to the essential characteristic figure of hologram image.Hologram pattern in this essential characteristic figure is carried out data acquisition, obtain R, G, B data matrix.
At stealthy denomination numeral, graphics processing unit S71 at first removes stealthy denomination digital picture unwanted edge on every side, thereby is shaped to the essential characteristic figure of stealthy denomination numeral.Carry out different directivity filtering at the main scape pattern of the numeral of the stealthy denomination in this essential characteristic figure and background patterns grain direction different when printing, obtain corresponding main scape characteristic matrix and background characteristics data matrix.
Each matching treatment algorithm device S72 utilizes the vector signal or the characteristic matrix that prestore that vector signal or the characteristic matrix that front end graphics processing unit S71 obtains carried out matching treatment.
A kind of preferred mode is, according to specific requirement, at the different different matching algorithms of characteristic point design.
With 100 yuans is example:
At color shifting ink, matching treatment algorithm device S72 utilizes the color shifting ink denomination front color characteristic data matrix and the side color characteristic data matrix that prestore that color shifting ink denomination front color characteristic data matrix and the side color characteristic data matrix that the front end graphics processing unit obtains carried out matching treatment respectively.
At hologram image, matching treatment algorithm device S72 utilizes the hologram image that prestores positive R, G, B data matrix and side R, G, B data matrix that hologram image positive R, G, B data matrix and side R, G, the B data matrix that the front end graphics processing unit obtains carried out matching treatment respectively.
At stealthy denomination numeral, matching treatment algorithm device S72 utilizes the stealthy denomination main scape characteristic matrix of numeral and the background characteristics data matrix that prestore that stealthy denomination main scape characteristic matrix of numeral and the background characteristics data matrix that the front end graphics processing unit obtains carried out matching treatment respectively.
Each threshold analysis cell S 73 is at first with the characteristic matrix after the front end matching treatment algorithm device S72 matching treatment and the threshold matrix contrast that prestores, just secondary coupling.Then, again the matrix interior element is done relative error analysis and total statistical analysis, obtain final identification result.
A kind of preferred mode is, according to specific requirement, at the different different threshold analysis algorithms of anti-forgery feature point design.
As can be seen, the portable terminal that adopts the foregoing description to provide both can be differentiated an anti-forgery feature point, also can differentiate a plurality of anti-forgery feature point, thereby can improve identification result to the adulterium coin greatly.In addition, can not only be confined to 3 anti-forgery feature point by the feature that image processing is differentiated, also can be to more anti-forgery feature point, for example fixedly portrait watermark, plain boiled water seal, ultraviolet image, infrared image, yin yang complementarity are differentiated impression case, offset printing microfilm of characters, the extraordinary mark under even numbers sign indicating number and the infrared laser irradiation etc. anyhow.The anti-forgery feature point of differentiating is many more, and is also just good more to the identification result of adulterium coin.
Fig. 8 shows the another kind of optionally structure of anti-counterfeiting detecting device.As shown in Figure 8, anti-counterfeiting detecting device S12 comprises a pretreatment unit S31, at least one discriminating unit S32 and a data updating block S81.Data updating unit S81 is used for the characteristic that each graphics processing unit S71 obtains is sent to network side.So just can upgrade the property data base of network side preservation in time.
It is pointed out that in implementation process anti-counterfeiting detecting device both can be used as one independently hardware exist, form that also can the logic function module realizes in the microprocessor of portable terminal.
In addition, those skilled in the art also as can be seen, the disclosed portable terminal of the foregoing description not only can be used to differentiate the true and false of banknote or marketable securities, also can carry out anti-counterfeiting detection, for example can carry out anti-counterfeiting detection various certificates, certificate, passport, financial document and classified papers etc. with anti-counterfeiting information to other various paper printed matters with anti-counterfeiting information.To having the commodity of anti-counterfeiting information, as long as at the characteristics of anti-counterfeiting information on the commodity Processing Algorithm in the anti-counterfeiting detecting device is done corresponding adjustment, described portable terminal can carry out anti-counterfeiting detection to described commodity too.
In the specific implementation, the infrared light supply that is used to detect infrared image can also be installed on portable terminal, or the ultraviolet source that is used to detect ultraviolet image is installed, also generating laser can be installed, be used to detect the extraordinary mark under the infrared laser irradiation.
Portable terminal described in the foregoing description includes but not limited to mobile phone and notebook.
Fig. 9 shows a kind of false-proof detection method, and this method comprises:
In some optional embodiments, also comprise decision steps after step 92: when the identification result of all anti-forgery feature point all is a true time, court verdict is true, otherwise court verdict be vacation.In some optional embodiments, after step 92, also comprise adulterium mode determining step: the adulterium mode of determining described detected material according to identification result for the distribution situation of false anti-forgery feature point.In some optional embodiments, discern the image of each anti-forgery feature point by following step: in the image basis that described image collecting device is gathered, accurately locate the anti-forgery feature point position of required identification; The interference noise that filtering is possible; Background parts is partly separated with anti-forgery feature point, obtain the view data of anti-forgery feature point.In some optional embodiments, by following step the image of each anti-forgery feature point is analyzed discriminating:, form and not only to keep the graphic feature of anti-forgery feature point but also the vector signal or the characteristic matrix of amount of compressed data by the graphics process of shaping and Sampling techniques; Vector signal that utilization prestores or characteristic matrix carry out matching treatment to described vector signal or characteristic matrix; With characteristic matrix after the matching treatment and the threshold matrix contrast that prestores, again the matrix interior element is done relative error analysis and total statistical analysis, obtain final identification result.In some optional embodiments, after step 92, also comprise a data step of updating: the characteristic that obtains is sent to network side, to upgrade the property data base of network side.
Those skilled in the art can understand, various exemplary method step of describing in conjunction with the disclosed embodiments and device unit all can electronic hardware here, software or the combination of the two realize.In order to be clearly shown that the interchangeability between the hardware and software, more than various exemplary steps and unit are all carried out generally description with its functional form.This functional be to realize or realize depending on the design constraint that specific application and whole system are realized with software with hardware.Those skilled in the art can be at each specific application, realize in many ways described functional, but the result of this realization should not be construed as and deviates from scope of the present invention.
Utilize general processor, digital signal processor (DSP), application-specific integrated circuit (ASIC) (ASIC), field programmable gate array (FPGA) or other programmable logical device, discrete gate or transistor logic, discrete hardware components or the combination in any among them, can realize or carry out the various exemplary unit of describing in conjunction with embodiment disclosed herein.General processor may be a microprocessor, but in another kind of situation, this processor may be processor, controller, microcontroller or the state machine of any routine.Processor also may be implemented as the combination of computing equipment, for example, and the combination of DSP and microprocessor, a plurality of microprocessor, one or more microprocessor or any other this kind structure in conjunction with the DSP core.
In conjunction with the step of the described method of above-mentioned disclosed embodiment can directly be presented as hardware, the software module carried out by processor or the combination of these two.Software module may be present in the storage media of RAM memory, flash memory, ROM memory, eprom memory, eeprom memory, register, hard disk, mobile disk, CD-ROM or any other form well known in the art.The coupling of a kind of exemplary storage medium and processor, thus make processor can be from this storage media read message, and can be to this storage media write information.In replacing example, storage media is the part of processor.Processor and storage media may be present among the ASIC.This ASIC may be present in the subscriber station.Replace in the example at one, the discrete assembly that processor and storage media can be used as in the subscriber station exists.
According to described disclosed embodiment, can be so that those skilled in the art can realize or use the present invention.To those skilled in the art, the various modifications of these embodiment are conspicuous, and the general principles of definition here also can be applied to other embodiment on the basis that does not depart from the scope of the present invention with purport.Above-described embodiment only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (19)
1. a portable terminal comprises image collecting device, it is characterized in that, also comprises an anti-counterfeiting detecting device, is used for the image of the anti-forgery feature point of described image collecting device collection is analyzed, and differentiates the true and false of anti-forgery feature point.
2. portable terminal as claimed in claim 1 is characterized in that the identification result of anti-counterfeiting detecting device is presented to the user by the information display device of described portable terminal.
3. portable terminal as claimed in claim 1 is characterized in that, the identification result of anti-counterfeiting detecting device is given the user by the loudspeaker feedback of described portable terminal.
4. portable terminal as claimed in claim 1 is characterized in that, described anti-counterfeiting detecting device comprises a pretreatment unit and at least one discriminating unit;
Described pretreatment unit is discerned the image of each anti-forgery feature point in the image that image collecting device is gathered, the image of each anti-forgery feature point is sent to the discriminating unit of correspondence;
Each discriminating unit is differentiated the image of a specific anti-forgery feature point.
5. portable terminal as claimed in claim 4 is characterized in that described anti-counterfeiting detecting device feeds back the identification result of each discriminating unit.
6. portable terminal as claimed in claim 4 is characterized in that, described anti-counterfeiting detecting device also comprises a decision mechanism unit, and when the identification result of all anti-forgery feature point all is a true time, court verdict is true, otherwise court verdict be vacation;
The court verdict of described anti-counterfeiting detecting device feedback decision mechanism unit.
7. portable terminal as claimed in claim 4 is characterized in that, described anti-counterfeiting detecting device also comprises an adulterium mode determining unit, is used for determining for the distribution situation of false anti-forgery feature point according to identification result the adulterium mode of described detected material;
Definite result of described anti-counterfeiting detecting device feedback adulterium mode determining unit.
8. portable terminal as claimed in claim 4 is characterized in that, described pretreatment unit comprises:
The feature location unit is used for the image basis in described image collecting device collection, the anti-forgery feature point position of accurately orienting required identification;
The filtering and noise reduction unit is used for the possible interference noise of filtering; With,
Feature extraction unit is used for background parts is partly separated with anti-forgery feature point, obtains the view data of anti-forgery feature point.
9. portable terminal as claimed in claim 4 is characterized in that, described discriminating unit is made up of graphics processing unit, matching treatment algorithm device and the threshold analysis unit of series connection;
Described graphics processing unit is by the graphics process of shaping and Sampling techniques, forms not only to keep the graphic feature of anti-forgery feature point but also the vector signal or the characteristic matrix of amount of compressed data;
Vector signal that the utilization of described matching treatment algorithm device prestores or characteristic matrix carry out matching treatment to vector signal or the characteristic matrix that described graphics processing unit obtains;
Described threshold analysis unit is used for characteristic matrix after the described matching treatment algorithm device matching treatment and the threshold matrix contrast that prestores are done relative error analysis and total statistical analysis to the matrix interior element again, obtains final identification result.
10. portable terminal as claimed in claim 9 is characterized in that, described anti-counterfeiting detecting device also comprises a data updating block, is used for the characteristic that each graphics processing unit obtains is sent to network side, to upgrade the property data base of network side.
11., it is characterized in that described image collector is changed to camera as each described portable terminal of claim 1 to 10.
12., it is characterized in that described information display device is a display screen as each described portable terminal of claim 1 to 10.
13., it is characterized in that described anti-counterfeiting detecting device is realized in the microprocessor of described portable terminal as each described portable terminal of claim 1 to 10.
14., it is characterized in that described anti-forgery feature point is the anti-counterfeiting information on the various paper printed matters as each described portable terminal of claim 1 to 10.
15. portable terminal as claimed in claim 14 is characterized in that, described various paper printed matters comprise bank note, certificate, certificate, passport, financial document, marketable securities and classified papers.
16. portable terminal as claimed in claim 14 is characterized in that, described anti-counterfeiting information comprises that color shifting ink, hologram image, stealthy denomination numeral, fixedly portrait watermark, plain boiled water seal, yin yang complementarity are to impression case, offset printing microfilm of characters and even numbers sign indicating number anyhow.
17. portable terminal as claimed in claim 16 is characterized in that, also comprises the infrared light supply that is used to detect infrared image.
18. portable terminal as claimed in claim 16 is characterized in that, also comprises the ultraviolet source that is used to detect ultraviolet image.
19. portable terminal as claimed in claim 16 is characterized in that, also comprises generating laser, is used to detect the extraordinary mark under the infrared laser irradiation.
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| CN200910080697A CN101848257A (en) | 2009-03-26 | 2009-03-26 | Mobile terminal |
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| CN200910080697A CN101848257A (en) | 2009-03-26 | 2009-03-26 | Mobile terminal |
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| CN103702021A (en) * | 2013-12-29 | 2014-04-02 | 广州视声电子科技有限公司 | Currency detection camera |
| CN104392536A (en) * | 2014-09-30 | 2015-03-04 | 浙江维融电子科技股份有限公司 | Banknote management method and apparatus |
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| CN107633591A (en) * | 2017-08-31 | 2018-01-26 | 维沃移动通信有限公司 | The authenticity verification method and mobile terminal of a kind of bank note |
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