CN100389432C - Seal false-true identifying method and integrated identifying machine - Google Patents
Seal false-true identifying method and integrated identifying machine Download PDFInfo
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- CN100389432C CN100389432C CNB2005100162948A CN200510016294A CN100389432C CN 100389432 C CN100389432 C CN 100389432C CN B2005100162948 A CNB2005100162948 A CN B2005100162948A CN 200510016294 A CN200510016294 A CN 200510016294A CN 100389432 C CN100389432 C CN 100389432C
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Abstract
The present invention relates to a method for identifying the truth of a ticket seal and an integrated type identification machine. The method orderly comprises the establishment of a database (a 64MFLASH memory chip), image collection (a CCD camera head), data decoding (a video decoding chip Philip SAA7115), processing recognition (high-speed ADSP21160) and output indication (a liquid crystal display). The present invention uses an optimized advanced algorithm, any detail of a target seal can be effectively processed and recognized, and the present invention greatly improves accuracy; a high-speed DSP is used to greatly improve calculating speed and ensure efficiency. A seal sample database is built in the integrated type identification machine to solve the problem of the storage of a large number of paper seal samples. An overall system can be integrated, and volume can be reduced to minimum; the overall system has the advantages of convenient movement and carrying, and thus, users are greatly convenient in use. By using a special collection and processing system, cost is greatly reduced, and the special collection and processing system is convenient to popularize in large scale.
Description
[technical field]:
The present invention relates to the detection and Identification of the bill seal true and false, especially detect and the true and false of discerning seal in the check.
[background technology]:
In the distinguishing of papers, be topmost foundation to the identification of the seal true and false on the bill.Traditional identification to the bill seal mainly still relies on the people to operate by hand.It is to compare from each orientation with the seal in the sample storehouse by the seal that human eye will need to discern, thereby distinguishes whether it is true seal.Also have a kind of check recognition methods in addition for adopting machine recognition, with the collection of bill seal, and discern the false from the genuine after the calculating by computing machine and the detection by a scanning device that is connected with computing machine.
Traditional manual method of identification mainly exists following problem: at first, adopt accuracy rate hand-manipulated low.It is often small with true seal difference to copy seal, and eye-observation can't all be noticed all details by condition influence, thereby can cause identification inaccurate, causes false bill to be got by under false pretences.Secondly, efficient hand-manipulated is extremely low.Present manual manipulation method is from different perspectives the place's doubling of bill seal to be contrasted mutually with master sample, so complicated operation, wastes time and energy.The 3rd, owing to often have the change of corporate seal, and concerning some small-scale outlets, can't in time receive these changes, cause professional temporary transient interruption that occur.In addition,, make paper document various, search difficulty and be difficult to fine preservation because that bank deposits the corporate seal data is huge.
Though and some computer based seal recognition systems can overcome problems such as identification poor accuracy, inefficiency, factors such as its cost and maintenance cost height have restricted it and have popularized on a large scale; And because this covering device needs special purpose computer and matches with it, so volume is bigger, moves inconvenience, has influenced it and has promoted the use of.
[summary of the invention]:
The objective of the invention is to solve in the said method accuracy rate hand-manipulated and efficient low, search difficulty and be difficult to fine preservation, and the machine recognition volume is bigger, move inconvenience, and maintenance cost and cost provide a kind of discern financial document seal false-true identifying method and integrated identifying machine accurate, efficient and with low cost than problems such as height.
Bill seal false-true identifying method of the present invention comprises successively:
Database is set up, and adopts 64M FLASH storage chip, and sample seal data are stored;
Image acquisition adopts the CCD camera that seal image is gathered, and the image that CCD is obtained changes static bill seal image into, passes through compression algorithm then, and image is converted into TV signal output;
Video decoding chip Philips SAA7115 is adopted in data decode, and the still image that imports into TV signal in the image acquisition of last step is decoded, and makes the TV signal of simulation be transformed to digital signal, handles identification module for central authorities and carries out data processing;
Processing and identification, to go up in the step data decoding decoded image digital signal through extracting, being converted into numeric data code after the conversion process with high-speed AD SP21160, and compare with institute's deposit data sign indicating number in the database, according to the similarity between them, draw the conclusion of the target seal true and false;
The output indication is made of LCDs, and the qualification result of processing and identification is pointed out by liquid crystal display output.
For realizing that the integrated identifying machine that above-mentioned bill seal discrimination method provides comprises:
Image capture module adopts the CCD camera, seal image is gathered, and image is converted into TV signal output; Because gathering is to carry out in seal cavity, therefore need be equipped with light source, with light source arrangement suitable position in casing, make it carry out adequate illumination to bill seal position, gather requirement to satisfy CCD;
The data decode module adopts video decoding chip Philips SAA7115 to constitute, and the still image that image capture module imports into TV signal is decoded, and makes the TV signal of simulation be transformed to digital signal, handles identification module for central authorities and carries out data processing;
Central authorities handle identification module, adopt high-speed AD SP21160 as central processing unit, will be converted into numeric data code after the extraction of the decoded image digital signal process of data decode module, the conversion process, and compare with institute's deposit data sign indicating number in the database;
Memory module adopts 64M FLASH storage chip, is used for storing sample seal data, after central authorities' processing identification module is finished dealing with to the target seal, accesses sample seal data to compare the similarity between them; This storage space can expand according to the continuous increase of database;
The output indicating module is made of LCDs, is used for central authorities are handled the qualification result of identification module by liquid crystal display output prompting.
The present invention is except that the seal real and fake discrimination function of carrying out standard, and this equipment also has the data increase of sample seal and delete function and on-line data base synchronizing function etc.
1, the storage of sample seal and deletion.This is the control performance that utilizes DSP, and the control corresponding button is set, and writes seal sample data newly-increased or that deletion has been cancelled and realize in database.
2, the on-line data base synchronizing function is that to allow equipment more than two or two to carry out online, makes database to realize sharing of data from a device transmission to another equipment.
Advantage of the present invention and good effect:
1, adopts specialized equipment that the financial document seal is differentiated, overcome that manual discriminating accuracy rate is not high, the disadvantage of inefficiency.This machine adopts through the advanced algorithm of optimizing, and makes that any details of target seal can both be handled and discern effectively, has greatly improved accuracy; And this equipment employing high-speed dsp, make the speed of calculating improve greatly, guaranteed efficient.
2, built-in seal sample database has solved the problem of preserving and deposit a large amount of papery seal samples.And the arbitrarily additions and deletions and online synchronous of seal sample, strengthened data manipulation and sharing.
3, different with existing seal authentication equipment, this equipment not only can be differentiated the true and false of Check seal and can differentiate other financial document, as various charge vouchers, mortgage voucher etc., has farthest expanded range of application, has improved utilization factor.
4, compare with existing seal authentication equipment, it has been abandoned the computing machine complete machine and has adopted special-purpose disposal system, thereby total system can highly be integrated and volume can be reduced to minimum, is convenient to move even carry, and is very easy to the user.And owing to adopt special-purpose the collection and disposal system, its cost also can reduce widely, is convenient to large-scale popularization.
[description of drawings]:
Fig. 1 is view data flow process and a main algorithm block diagram in the seal discrimination method;
Fig. 2 is a bill seal discrimination machine functional-block diagram of the present invention;
Fig. 3 is that the bill seal is differentiated all-in-one core circuit plate layout reference diagram.
[embodiment]:
Embodiment 1: discrimination method
Database is set up, and adopts 64M FLASH storage chip, and sample seal data are stored;
Image acquisition adopts the CCD camera that seal image is gathered, and the image that CCD is obtained changes static bill seal image into, passes through compression algorithm then, and image is converted into TV signal output;
Video decoding chip Philips SAA7115 is adopted in data decode, and the still image that imports into TV signal in the image acquisition of last step is decoded, and makes the TV signal of simulation be transformed to digital signal, handles identification module for central authorities and carries out data processing;
Processing and identification, to go up in the step data decoding decoded image digital signal through extracting, being converted into numeric data code after the conversion process with high-speed AD SP21160, and compare with institute's deposit data sign indicating number in the database, according to the similarity between them, draw the conclusion of the target seal true and false;
Concrete steps following (referring to Fig. 1):
1. the extraction of seal.Need are differentiated that seal designs intactly extracts from the bill image of being gathered, require to keep the former state of seal designs, can not have damaged or increase, for processing is after this prepared.
2. the seal designs utilization advanced person's that extracts Flame Image Process and recognition methods are calculated, draw its condition code, especially easy uncared-for detail section is added to note, guarantee that its condition code is unique to discern.
3. will calculate the gained condition code compares with the condition code in the sample seal storehouse, find out a corresponding with it group coding, and its details is compared, thereby find out the similarity of target seal and sample seal, similarity is compared with default thresholding, obtain conclusion at last.
Seal image separates main algorithm: the seed diffusion is filled image algorithm and is floated entity deletion ground unrest algorithm etc.; Seal identification main algorithm: based on square invariant recognizer, based on Fourier descriptor recognizer, based on edge and template matches recognizer etc.
The output indication is made of LCDs, and the qualification result of processing and identification is pointed out by liquid crystal display output.
Embodiment 2: differentiate all-in-one
As shown in Figure 2, this financial bill seal discrimination machine is handled links such as identification module, memory module, output indicating module by image capture module, data decode module, central authorities and is constituted, the annexation of its specific product and installation site be referring to Fig. 3, core circuit plate layout:
1, image capture module.This module adopts the CCD camera that seal image is gathered.It is image that CCD is obtained by software control, change static bill seal image into, pass through compression algorithm then, image is converted into TV signal output.Because gathering is to carry out, therefore need be equipped with light source in seal cavity.With light source arrangement suitable position in casing, make it carry out adequate illumination to bill seal position, gather requirement to satisfy CCD.
2, data decode module.This module adopts the video decoding chip Philips SAA7115 of current popular to constitute.Function is to import CCD into still image by decoding with TV signal, makes the TV signal of simulation be transformed to digital signal, handles identification module for central authorities and carries out data processing.
3, central authorities handle identification module.This module is the core of this equipment.This machine adopts high-speed AD SP21160 as central processing unit.It is converted into the numeric data code with some eigenwert with decoded picture signal after through a series of processing such as extraction, conversion, utilizes in this numeric data code and the database institute's deposit data sign indicating number to compare and reach a conclusion.
4, memory module.Adopt 64M FLASH storage chip to store in this equipment.The FLASH storage chip is stored in sample seal data wherein as database, accesses after DSP finishes dealing with to the target seal to compare the similarity between them.This storage space can expand according to the continuous increase of database.
5, output indicating module.This module is made of LCDs and sound indicating section.Its function is that the qualification result that central authorities handle identification module is pointed out by liquid crystal display output and by sound, makes the operator can understand the result of seal identification easily.In addition, sound also will indicate a certain function to open as the operation indicating sound of button.
Except that the seal real and fake discrimination function of carrying out standard, this equipment also has the data increase of sample seal and delete function and on-line data base synchronizing function etc.
1, the storage of sample seal and deletion.This is the control performance that utilizes DSP, and the control corresponding button is set, and writes seal sample data newly-increased or that deletion has been cancelled and realize in database.
2, the on-line data base synchronizing function is that to allow equipment more than two or two to carry out online, makes database to realize sharing of data from a device transmission to another equipment.
Claims (2)
1. bill seal false-true identifying method is characterized in that this discrimination method comprises successively:
Database is set up, and adopts 64M FLASH storage chip, and sample seal data are stored;
Image acquisition adopts the CCD camera that seal image is gathered, and the image that CCD is obtained changes static bill seal image into, passes through compression algorithm then, and image is converted into TV signal output;
Video decoding chip Philips SAA7115 is adopted in data decode, and the still image that imports into TV signal in the image acquisition of last step is decoded, and makes the TV signal of simulation be transformed to digital signal, handles identification module for central authorities and carries out data processing;
Processing and identification, to go up in the step data decoding decoded image digital signal through extracting, being converted into numeric data code after the conversion process with high-speed AD SP21160, and compare with institute's deposit data sign indicating number in the database, according to the similarity between them, draw the conclusion of the target seal true and false;
The output indication is made of LCDs, and the qualification result of processing and identification is pointed out by liquid crystal display output.
2. integrated identifying machine of realizing the described discrimination method of claim 1, the bill seal authenticity that it is characterized in that breaking away from the computing machine complete machine differentiate all-in-one and based on the bill seal authenticity identification system mainboard of High Performance DSP, its concrete structure is:
Image capture module adopts the CCD camera, seal image is gathered, and image is converted into TV signal output;
The data decode module adopts video decoding chip Philips SAA7115 to constitute, and the still image that image capture module imports into TV signal is decoded, and makes the TV signal of simulation be transformed to digital signal, handles identification module for central authorities and carries out data processing;
Central authorities handle identification module, adopt high-speed AD SP21160 as central processing unit, will be converted into numeric data code after the extraction of the decoded image digital signal process of data decode module, the conversion process, and compare with institute's deposit data sign indicating number in the database;
Memory module adopts 64M FLASH storage chip, is used for storing sample seal data, after central authorities' processing identification module is finished dealing with to the target seal, accesses sample seal data to compare the similarity between them;
The output indicating module is made of LCDs, is used for central authorities are handled the qualification result of identification module by liquid crystal display output prompting.
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| CNB2005100162948A CN100389432C (en) | 2005-03-14 | 2005-03-14 | Seal false-true identifying method and integrated identifying machine |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101059885B (en) * | 2006-11-03 | 2011-05-04 | 朱杰 | A ticket true/false verifying method |
| CN101122999B (en) * | 2007-04-16 | 2010-07-07 | 北京联合大学 | Method for automatically extracting stamp image from Chinese painting and calligraphy |
| CN100594511C (en) * | 2007-11-02 | 2010-03-17 | 北京大学 | Seal imprint image search method of circular stamp |
| CN103235934A (en) * | 2013-04-17 | 2013-08-07 | 中国工商银行股份有限公司 | Comparison method and system of seal images |
| CN103400438A (en) * | 2013-06-22 | 2013-11-20 | 温州市质量技术监督检测院 | Assembly method of currency examination performance testing system |
| CN106934322A (en) * | 2015-12-29 | 2017-07-07 | 上海优尼客物联网有限公司 | A kind of seal recognition methods of ceramics and system |
| TWI684157B (en) * | 2018-10-12 | 2020-02-01 | 南山人壽保險股份有限公司 | A Smart Claims System Based on Action Vehicle |
| CN110119376A (en) * | 2019-04-10 | 2019-08-13 | 北京瀚海云鉴科技有限公司 | A kind of Chinese Painting and Calligraphy seal identification sample database system |
| TWI778435B (en) * | 2020-10-20 | 2022-09-21 | 臺灣銀行股份有限公司 | Device for acquiring digital stamp information and method for verifying digistal stamp information |
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| CN1416098A (en) * | 2001-10-30 | 2003-05-07 | 株式会社日立制作所 | Database management sysem for seal contrast and management service method |
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