CN103702021A - Currency detection camera - Google Patents

Currency detection camera Download PDF

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Publication number
CN103702021A
CN103702021A CN201310746026.6A CN201310746026A CN103702021A CN 103702021 A CN103702021 A CN 103702021A CN 201310746026 A CN201310746026 A CN 201310746026A CN 103702021 A CN103702021 A CN 103702021A
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CN
China
Prior art keywords
described
anti
counterfeiting characteristic
currency examine
comparing result
Prior art date
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CN201310746026.6A
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Chinese (zh)
Inventor
郭文权
朱湘军
彭永坚
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广州视声电子科技有限公司
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Priority to CN201310746026.6A priority Critical patent/CN103702021A/en
Publication of CN103702021A publication Critical patent/CN103702021A/en

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Abstract

The embodiment of the invention discloses a currency detection camera, which is used for allowing a user to make judgments without being influenced by personal situations, true and false currency detection capacities and the like, and ensuring the accuracy of currency detection results. In a method disclosed by the embodiment of the invention, the currency detection camera comprises an infrared LED (Light-Emitting Diode) assembly, a lens, a light filter assembly, an image sensor, an analog-to-digital conversion assembly and a DSP (Digital Signal Processor) chip, wherein the infrared LED assembly is used for emitting infrared light penetrating and irradiating currencies; the lens is used for acquiring a first optical image of the currency; the light filter assembly is used for optically filtering the first optical image to obtain a second optical image; the second optical image is provided with at least one anti-fake characteristic; the image sensor is used for converting the second optical image into an electronic signal; the analog-to-digital conversion assembly is used for converting the electronic signal into a first digital image; the DSP chip is used for comparing corresponding anti-fake characteristics of the first digital image and a pre-stored standard digital image to obtain a comparison result, and outputting a judgment result according to the comparison result.

Description

A kind of currency examine camera

Technical field

The present invention relates to camera field, relate in particular to a kind of currency examine camera.

Background technology

Bank note is one of retrievable currency not in people's daily life, is also topmost currency simultaneously.Then the appearance of counterfeit money has brought a lot of unnecessary worries and trouble to people's normal society transaction, thereby the status of cash inspecting machine is more aobvious important.

At present, have a kind of currency examine camera on market, its operation principle is to have integrated one group of ultra-violet lamp on general camera, can irradiate bank note by this ultra-violet lamp and make user see the anti-counterfeiting mark on bank note, and user judges the true and false of this bank note.

Yet user judges that the true and false of this bank note exists the mistaken ideas distinguish, be subject to user's individual situation impact simultaneously, the distinguish true from false ability of bank note of user there are differences, and increases the inaccuracy of currency examine result.

Summary of the invention

The embodiment of the present invention provides a kind of currency examine camera, is subject to personal considerations and the impact of the ability etc. of the bank note of distinguishing true from false in the time of can having avoided user to judge, has guaranteed the accuracy of currency examine result.

A currency examine camera, comprising:

Infrared LED assembly, for sending infrared light transillumination bank note;

Camera lens, for gathering the first optical imagery of described bank note;

Optical filter box, for described the first optical imagery is carried out to optical filtering, obtains the second optical imagery, and described the second optical imagery possesses at least one anti-counterfeiting characteristic;

Imageing sensor, for being converted to electronic signal by described the second optical imagery;

Analog-to-digital conversion assembly, for being converted to the first digital picture by described electronic signal;

Dsp chip, for described the first digital picture is carried out to the contrast of corresponding anti-counterfeiting characteristic with the standard digital image prestoring, obtains comparing result, and according to described comparing result output judged result.

Alternatively,

Described anti-counterfeiting characteristic comprises: watermark, safety line, white watermark, stealthy denomination numeral, the fluorescence marking.

Alternatively,

The definition of the image-region of the anti-counterfeiting characteristic of described the first digital picture reaches pre-set criteria.

Alternatively,

Described infrared LED assembly forms LED array by several LED.

Alternatively,

Entire paper coin described in the even transillumination of infrared light that described infrared LED assembly sends.

Alternatively, dsp chip specifically comprises:

The first contrast module, carries out the contrast of a corresponding default anti-counterfeiting characteristic for the first digital picture and the standard digital image prestoring, obtain comparing result;

The first output module, for exporting judged result according to described comparing result.

Alternatively,

If a described default anti-counterfeiting characteristic of the first digital picture does not mate with a described default anti-counterfeiting characteristic of the standard digital image prestoring, the anti-counterfeiting characteristic that comparing result of the first contrast module is bank note does not mate;

The first output module is according to the counterfeit money that judgment result is that of described comparing result output;

Or,

If a described default anti-counterfeiting characteristic of the first digital picture mates with a described default anti-counterfeiting characteristic of the standard digital image prestoring, the anti-counterfeiting characteristic coupling that comparing result of the first contrast module is bank note;

The first output module is according to the genuine note that judgment result is that of described comparing result output.

Alternatively, dsp chip specifically comprises:

The second contrast module, carries out the contrast of corresponding at least two default anti-counterfeiting characteristics for the first digital picture and the standard digital image prestoring, obtain comparing result;

The second output module, for exporting judged result according to described comparing result.

Alternatively,

If a described default anti-counterfeiting characteristic and at least two described default anti-counterfeiting characteristics of the standard digital image prestoring of the first digital picture exist N not mate, the comparing result of the second contrast module be bank note anti-counterfeiting characteristic N do not mate;

The second output module judges whether N is greater than M, and described M is default coupling threshold values, if N is more than or equal to M, the second output module output judgment result is that counterfeit money, if N is less than M, the second output module output judgment result is that genuine note.

Alternatively, also comprise:

Image output precision, exports display device to for described the first digital picture is carried out to format conversion;

Described display device comprises: computer monitor, display, Vehicular display device, industrial display.

As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages:

In the embodiment of the present invention, a kind of currency examine camera, comprise: infrared LED assembly, be used for sending infrared light transillumination bank note, camera lens, for gathering the first optical imagery of described bank note, optical filter box, for described the first optical imagery is carried out to optical filtering, obtain the second optical imagery, described the second optical imagery possesses at least one anti-counterfeiting characteristic, imageing sensor, for described the second optical imagery is converted to electronic signal, analog-to-digital conversion assembly, for described electronic signal is converted to the first digital picture, dsp chip, for described the first digital picture is carried out to the contrast of corresponding anti-counterfeiting characteristic with the standard digital image prestoring, obtain comparing result, and according to described comparing result output judged result.In embodiments of the present invention, the dsp chip in currency examine camera can directly be exported judged result, without user, carries out correlated judgment, is subject to personal considerations and the impact of the ability etc. of the bank note of distinguishing true from false while having avoided user to judge, has guaranteed the accuracy of currency examine result.

Accompanying drawing explanation

Fig. 1 is a kind of currency examine first example structure figure that makes a video recording in the embodiment of the present invention;

Fig. 2 is a kind of another example structure of currency examine camera figure in the embodiment of the present invention;

Fig. 3 is a kind of another example structure of currency examine camera figure in the embodiment of the present invention.

Embodiment

The embodiment of the present invention provides a kind of currency examine camera, is subject to personal considerations when having avoided user to judge and the impact of the ability of the bank note of distinguishing true from false etc., has guaranteed the accuracy of currency examine result.

For making goal of the invention of the present invention, feature, advantage can be more obvious and understandable, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, the embodiments described below are only the present invention's part embodiment, but not whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.

Refer to Fig. 1, in the embodiment of the present invention, a kind of currency examine first embodiment that makes a video recording comprises:

Infrared LED assembly 101, for sending infrared light transillumination bank note;

Camera lens 102, for gathering the first optical imagery of this bank note;

Optical filter box 103, for this first optical imagery is carried out to optical filtering, obtains the second optical imagery, and this second optical imagery possesses at least one anti-counterfeiting characteristic;

Imageing sensor 104, for being converted to electronic signal by this second optical imagery;

Analog-to-digital conversion assembly 105, for being converted to the first digital picture by this electronic signal;

Dsp chip 106, for this first digital picture is carried out to the contrast of corresponding anti-counterfeiting characteristic with the standard digital image prestoring, obtains comparing result, and according to this comparing result output judged result.

In the present embodiment, infrared LED assembly 101 sends infrared light transillumination bank note, camera lens 102 gathers the first optical imagery of this bank note, 103 pairs of these the first optical imagerys of optical filter box carry out optical filtering, obtain the second optical imagery, this second optical imagery possesses at least one anti-counterfeiting characteristic, imageing sensor 104 is converted to electronic signal by this second optical imagery, analog-to-digital conversion assembly 105 is converted to the first digital picture by this electronic signal, dsp chip 106 carries out the contrast of corresponding anti-counterfeiting characteristic by this first digital picture with the standard digital image prestoring, obtain comparing result, and according to this comparing result output judged result.In the present embodiment, the dsp chip 106 in currency examine camera can directly be exported judged result, without user, carries out correlated judgment, is subject to personal considerations and the impact of the ability etc. of the bank note of distinguishing true from false while having avoided user to judge, has guaranteed the accuracy of currency examine result.

For ease of understanding, below a kind of currency examine camera in the embodiment of the present invention is described in detail, refer to Fig. 2, in the embodiment of the present invention, a kind of another embodiment of currency examine camera comprises:

Infrared LED assembly 201, for sending infrared light transillumination bank note;

Camera lens 202, for gathering the first optical imagery of this bank note;

Optical filter box 203, for this first optical imagery is carried out to optical filtering, obtains the second optical imagery, and this second optical imagery possesses at least one anti-counterfeiting characteristic;

Imageing sensor 204, for being converted to electronic signal by this second optical imagery;

Analog-to-digital conversion assembly 205, for being converted to the first digital picture by this electronic signal;

Dsp chip 206, for this first digital picture is carried out to the contrast of corresponding anti-counterfeiting characteristic with the standard digital image prestoring, obtains comparing result, and according to this comparing result output judged result.

It should be noted that, this anti-counterfeiting characteristic comprises: watermark, safety line, white watermark, stealthy denomination numeral, the fluorescence marking.

It should be noted that, the definition of the image-region of the anti-counterfeiting characteristic of this first digital picture reaches pre-set criteria.

It should be noted that, this infrared LED assembly forms LED array by several LED, this entire paper coin of the even transillumination of infrared light that this infrared LED assembly sends.

In the present embodiment, dsp chip 206 specifically comprises:

The first contrast module 2061, carries out the contrast of a corresponding default anti-counterfeiting characteristic for the first digital picture and the standard digital image prestoring, obtain comparing result;

The first output module 2062, for exporting judged result according to this comparing result.

It should be noted that,

If this default anti-counterfeiting characteristic of the first digital picture does not mate with this default anti-counterfeiting characteristic of the standard digital image prestoring, the anti-counterfeiting characteristic that comparing result of the first contrast module 2061 is bank note does not mate;

The first output module 2062 is according to the counterfeit money that judgment result is that of this comparing result output;

Or,

If this default anti-counterfeiting characteristic of the first digital picture mates with this default anti-counterfeiting characteristic of the standard digital image prestoring, the anti-counterfeiting characteristic coupling that comparing result of the first contrast module 2061 is bank note;

The first output module 2062 is according to the genuine note that judgment result is that of this comparing result output.

It should be noted that, this imageing sensor 204 is ccd image sensor or cmos image sensor.

In the present embodiment, currency examine camera also comprises:

Image output precision 207, exports display device to for this first digital picture is carried out to format conversion.

It should be noted that, this display device comprises: computer monitor, display, Vehicular display device, industrial display.

In the present embodiment, infrared LED assembly 201 sends infrared light transillumination bank note, camera lens 202 gathers the first optical imagery of this bank note, 203 pairs of these the first optical imagerys of optical filter box carry out optical filtering, obtain the second optical imagery, this second optical imagery possesses at least one anti-counterfeiting characteristic, imageing sensor 204 is converted to electronic signal by this second optical imagery, analog-to-digital conversion assembly 205 is converted to the first digital picture by this electronic signal, dsp chip 206 carries out the contrast of corresponding anti-counterfeiting characteristic by this first digital picture with the standard digital image prestoring, obtain comparing result, and according to this comparing result output judged result.In the present embodiment, the dsp chip 206 in currency examine camera can directly be exported judged result, without user, carries out correlated judgment, is subject to personal considerations and the impact of the ability etc. of the bank note of distinguishing true from false while having avoided user to judge, has guaranteed the accuracy of currency examine result.Further, in the present embodiment, the first contrast module 2061 of dsp chip 206 is carried out a corresponding default anti-counterfeiting characteristic by the first digital picture and the standard digital image prestoring and is contrasted, if this default anti-counterfeiting characteristic of the first digital picture does not mate with this default anti-counterfeiting characteristic of the standard digital image prestoring, the comparing result of the first contrast module 2061 is bank note anti-counterfeiting characteristic does not mate, thus the first output module 2062 outputs judgment result is that counterfeit money; If this default anti-counterfeiting characteristic of the first digital picture mates with this default anti-counterfeiting characteristic of the standard digital image prestoring, the comparing result of the first contrast module 2061 anti-counterfeiting characteristic coupling that is bank note, thus the first output module 2062 outputs judgment result is that genuine note.Due to an anti-counterfeiting characteristic of 2061 contrasts of the first contrast module, thereby improved versus speed, simplified comparison process, for concerning forge or true or paper money requires not rigorous domestic consumer, used convenient and quick.

Described above and how by contrasting an anti-counterfeiting characteristic, to have judged bank note, described below and how by contrasting a plurality of anti-counterfeiting characteristics, to judge bank note, referred to Fig. 3, in the embodiment of the present invention, a kind of another embodiment of currency examine camera comprises:

Infrared LED assembly 301, for sending infrared light transillumination bank note;

Camera lens 302, for gathering the first optical imagery of this bank note;

Optical filter box 303, for this first optical imagery is carried out to optical filtering, obtains the second optical imagery, and this second optical imagery possesses at least one anti-counterfeiting characteristic;

Imageing sensor 304, for being converted to electronic signal by this second optical imagery;

Analog-to-digital conversion assembly 305, for being converted to the first digital picture by this electronic signal;

Dsp chip 306, for this first digital picture is carried out to the contrast of corresponding anti-counterfeiting characteristic with the standard digital image prestoring, obtains comparing result, and according to this comparing result output judged result.

It should be noted that, this anti-counterfeiting characteristic comprises: watermark, safety line, white watermark, stealthy denomination numeral, the fluorescence marking.

It should be noted that, the definition of the image-region of the anti-counterfeiting characteristic of this first digital picture reaches pre-set criteria.

It should be noted that, this infrared LED assembly forms LED array by several LED, this entire paper coin of the even transillumination of infrared light that this infrared LED assembly sends.

In the present embodiment, dsp chip 306 specifically comprises:

The second contrast module 3061, carries out the contrast of corresponding at least two default anti-counterfeiting characteristics for the first digital picture and the standard digital image prestoring, obtain comparing result;

The second output module 3062, for exporting judged result according to this comparing result.

It should be noted that,

If this default anti-counterfeiting characteristic of the first digital picture exists N not mate with these at least two default anti-counterfeiting characteristics of the standard digital image prestoring, anti-counterfeiting characteristic N that comparing result of the second contrast module 3061 is bank note is individual not to be mated;

The second output module 3062 judges whether N is greater than M, and this M is default coupling threshold values, if N is more than or equal to M, the second output module 3062 outputs judgment result is that counterfeit money, if N is less than M, the second output module 3062 outputs judgment result is that genuine note.

It should be noted that, this imageing sensor 304 is ccd image sensor or cmos image sensor.

In the present embodiment, currency examine camera also comprises:

Image output precision 307, exports display device to for this first digital picture is carried out to format conversion.

It should be noted that, this display device comprises: computer monitor, display, Vehicular display device, industrial display.

In the present embodiment, infrared LED assembly 301 sends infrared light transillumination bank note, camera lens 302 gathers the first optical imagery of this bank note, 303 pairs of these the first optical imagerys of optical filter box carry out optical filtering, obtain the second optical imagery, this second optical imagery possesses at least one anti-counterfeiting characteristic, imageing sensor 304 is converted to electronic signal by this second optical imagery, analog-to-digital conversion assembly 305 is converted to the first digital picture by this electronic signal, dsp chip 306 carries out the contrast of corresponding anti-counterfeiting characteristic by this first digital picture with the standard digital image prestoring, obtain comparing result, and according to this comparing result output judged result.In the present embodiment, the dsp chip 306 in currency examine camera can directly be exported judged result, without user, carries out correlated judgment, is subject to personal considerations and the impact of the ability etc. of the bank note of distinguishing true from false while having avoided user to judge, has guaranteed the accuracy of currency examine result.Further, in the present embodiment, the second contrast module 3061 of dsp chip 306, for the first digital picture and the standard digital image prestoring, carrying out corresponding at least two default anti-counterfeiting characteristics contrasts, if this default anti-counterfeiting characteristic of the first digital picture exists N not mate with these at least two default anti-counterfeiting characteristics of the standard digital image prestoring, the comparing result of the second contrast module 3061 be bank note anti-counterfeiting characteristic N do not mate, the second output module 3062 judges whether N is greater than M, this M is default coupling threshold values, if N is more than or equal to M, the second output module 3062 outputs judgment result is that counterfeit money, if N is less than M, the second output module 3062 outputs judgment result is that genuine note.Because the second contrast module 2061 is by least two anti-counterfeiting characteristics of contrast, thereby improve contrast precision, made the bank note judged result of acquisition more accurately and reliably.

For ease of understanding, according to the described embodiment of Fig. 3, with a practical application scene, a kind of currency examine camera in the embodiment of the present invention is described below:

User, need to be to the setting of being correlated with of currency examine camera, as bill type, currency examine dynamics etc. before using currency examine camera.Bill type comprise RMB, U.S. dollar, Euro etc. selection, currency examine dynamics can be divided into general, medium, high three grades, during general expression currency examine, only check one of them anti-counterfeiting characteristic of bill image, mediumly check a plurality of anti-counterfeiting characteristics, the high whole anti-counterfeiting characteristics etc. of checking, specifically can determine according to actual service condition.

When user uses currency examine camera, open currency examine camera, the infrared LED lamp group of this currency examine camera is aimed to bank note, entire paper coin is penetrated by infrared, and can see from the connection device of currency examine camera the image of entire paper coin.

Infrared light penetrates after bank note, and the camera lens in currency examine camera will gather the optical imagery of bank note, and filters through the filter in currency examine camera, obtains anti-counterfeiting characteristic region optical imagery clearly.

This optical imagery can pass through the processing of imageing sensor, analog-to-digital conversion assembly, converts the digital picture that can be identified and process by dsp chip to.

Dsp chip in currency examine camera contrasts the standard digital image prestoring in this digital picture and dsp chip, whether the pixel number of the anti-counterfeiting characteristic on two images of main detection, gray value etc. approach, the algorithm that detects pixel number, gray value herein can be built in dsp chip, while supposing that pixel number, the gray value 80% of the anti-counterfeiting characteristic in two images is identical, think this anti-counterfeiting characteristic couplings of two images.

If dsp chip contrasts this digital picture and the standard digital image that prestores while existing N anti-counterfeiting characteristic not mate, judge whether N is greater than M, M is default coupling threshold values, if N is more than or equal to M, judge that this digital picture do not mate with the standard digital image prestoring, this bank note is counterfeit money; If N is less than M, judge this digital picture and the standard digital images match prestoring, this bank note is genuine note.

It should be noted that, before dsp chip contrasts this digital picture and the standard digital image prestoring, whether the definition of image-region that can detect the anti-counterfeiting characteristic of this digital picture reaches pre-set criteria, if do not reach standard, can inform user by the display device connecting, allow user again take bank note.

Dsp chip in currency examine camera draws after judged result, can inform user by the display device connecting, and also can inform by the LED lamp feedback signal on currency examine camera the true and false situation of this bank note of user.

In currency examine camera, image output precision can guarantee that this currency examine camera can be connected with multiple display device, as computer monitor, display, Vehicular display device, industrial display etc., and make these display devices can show in real time the image of currency examine camera shooting bank note, make user more directly perceived and clear to the work of currency examine camera.

Those skilled in the art can be well understood to, for convenience and simplicity of description, the system of foregoing description, the specific works process of device and unit, can, with reference to the corresponding process in preceding method embodiment, not repeat them here.

In the several embodiment that provide in the application, should be understood that, disclosed system, apparatus and method, can realize by another way.For example, device embodiment described above is only schematic, for example, the division of described unit, be only that a kind of logic function is divided, during actual realization, can have other dividing mode, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.

The described unit as separating component explanation can or can not be also physically to separate, and the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed in a plurality of network element.Can select according to the actual needs some or all of unit wherein to realize the object of the present embodiment scheme.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can be also that the independent physics of unit exists, and also can be integrated in a unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, and also can adopt the form of SFU software functional unit to realize.

If the form of SFU software functional unit of usining described integrated unit realizes and during as production marketing independently or use, can be stored in a computer read/write memory medium.Understanding based on such, the all or part of of the part that technical scheme of the present invention contributes to prior art in essence in other words or this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, or the network equipment etc.) carry out all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: various media that can be program code stored such as USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CDs.

The above, above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (10)

1. a currency examine camera, is characterized in that, comprising:
Infrared LED assembly, for sending infrared light transillumination bank note;
Camera lens, for gathering the first optical imagery of described bank note;
Optical filter box, for described the first optical imagery is carried out to optical filtering, obtains the second optical imagery, and described the second optical imagery possesses at least one anti-counterfeiting characteristic;
Imageing sensor, for being converted to electronic signal by described the second optical imagery;
Analog-to-digital conversion assembly, for being converted to the first digital picture by described electronic signal;
Dsp chip, for described the first digital picture is carried out to the contrast of corresponding anti-counterfeiting characteristic with the standard digital image prestoring, obtains comparing result, and according to described comparing result output judged result.
2. currency examine camera according to claim 1, is characterized in that,
Described anti-counterfeiting characteristic comprises: watermark, safety line, white watermark, stealthy denomination numeral, the fluorescence marking.
3. currency examine camera according to claim 1, is characterized in that,
The definition of the image-region of the anti-counterfeiting characteristic of described the first digital picture reaches pre-set criteria.
4. currency examine camera according to claim 1, is characterized in that,
Described infrared LED assembly forms LED array by several LED.
5. currency examine camera according to claim 4, is characterized in that,
Entire paper coin described in the even transillumination of infrared light that described infrared LED assembly sends.
6. currency examine camera according to claim 1, is characterized in that, dsp chip specifically comprises:
The first contrast module, carries out the contrast of a corresponding default anti-counterfeiting characteristic for the first digital picture and the standard digital image prestoring, obtain comparing result;
The first output module, for exporting judged result according to described comparing result.
7. currency examine camera according to claim 6, is characterized in that,
If a described default anti-counterfeiting characteristic of the first digital picture does not mate with a described default anti-counterfeiting characteristic of the standard digital image prestoring, the anti-counterfeiting characteristic that comparing result of the first contrast module is bank note does not mate;
The first output module is according to the counterfeit money that judgment result is that of described comparing result output;
Or,
If a described default anti-counterfeiting characteristic of the first digital picture mates with a described default anti-counterfeiting characteristic of the standard digital image prestoring, the anti-counterfeiting characteristic coupling that comparing result of the first contrast module is bank note;
The first output module is according to the genuine note that judgment result is that of described comparing result output.
8. currency examine camera according to claim 1, is characterized in that, dsp chip specifically comprises:
The second contrast module, carries out the contrast of corresponding at least two default anti-counterfeiting characteristics for the first digital picture and the standard digital image prestoring, obtain comparing result;
The second output module, for exporting judged result according to described comparing result.
9. currency examine camera according to claim 8, is characterized in that,
If a described default anti-counterfeiting characteristic and at least two described default anti-counterfeiting characteristics of the standard digital image prestoring of the first digital picture exist N not mate, the comparing result of the second contrast module be bank note anti-counterfeiting characteristic N do not mate;
The second output module judges whether N is greater than M, and described M is default coupling threshold values, if N is more than or equal to M, the second output module output judgment result is that counterfeit money, if N is less than M, the second output module output judgment result is that genuine note.
10. currency examine camera according to claim 1, is characterized in that, also comprises:
Image output precision, exports display device to for described the first digital picture is carried out to format conversion;
Described display device comprises: computer monitor, display, Vehicular display device, industrial display.
CN201310746026.6A 2013-12-29 2013-12-29 Currency detection camera CN103702021A (en)

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