CN102567764A - Bill certificate and system for improving electronic image recognition efficiency - Google Patents
Bill certificate and system for improving electronic image recognition efficiency Download PDFInfo
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- CN102567764A CN102567764A CN201210011581XA CN201210011581A CN102567764A CN 102567764 A CN102567764 A CN 102567764A CN 201210011581X A CN201210011581X A CN 201210011581XA CN 201210011581 A CN201210011581 A CN 201210011581A CN 102567764 A CN102567764 A CN 102567764A
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Abstract
The invention discloses a bill certificate and a system for improving the electronic image recognition efficiency. The bill certificate is realized on the basis of a two-dimensional code technology and at least provided with a certificate name, elemental region information and a two-dimensional code image, wherein the certificate name at least comprises a check or a take-in bill; the elemental region information at least comprises a certificate number, a sum and an account; and the two-dimensional code image at least comprises a bill type and service elemental information. The system comprises a two-dimensional code generation module, a two-dimensional code printing module, a bill image acquisition module, a two-dimensional code information reading module, a bill image error correction module, a bill image cutting module, an optical character recognition (OCR) record module and a manual record module. By using the bill certificate and the system, the recognition correctness and elemental positioning accuracy of the bill certificate are improved effectively.
Description
Technical field
The present invention relates to bill identification processing technology field, particularly a kind of bill is in bill evidence and system that the raising electron image recognition efficiency under the abnormal conditions such as many places folding line occurs.
Background technology
Bank certificate is the document of bank's transacting business, like bill, voucher of clearing etc., also is the instrument of payment and settlement.In the use of bank certificate; For increasing the robotization of treatment scheme, general using scanner, the first-class image capture device of shooting carry out the electronization processing and generate image voucher, adopt optical character identification (Optical Character Recognition at last; OCR) technology is handled the image that generates; Wherein the OCR technology is the cooperation through optical scanner and computing machine, view data is carried out sorting of operation after, view data is converted into the computing machine ISN.
It is specific as follows that the existing OCR of employing technology is carried out processed steps to the image that generates:
Step 1:OCR system identifies the type of credentials of this voucher made of paper according to characteristic line on the voucher image or characteristic character;
Step 2:OCR system is according to the frame lines and other information on type of credentials and the margin that identifies, the image; Remove to carry out cutting image according to presumptive area, such as with number of the account part, draw amount of money part, signature section or the like respectively from the image of check voucher cutting and separating come out;
Step 3:OCR system directly discerns the part (such as check account number) that machine is printed, and directly is recorded in database then;
Step 4: part (such as drawing the amount of money, the signature) image that non-machine is printed by system is shown to the related personnel to carry out craft and checks typing.
Can find out from above treatment scheme; Image to voucher in the whole flow process requires very high; But in the actual process, often there is following situation, seriously influences the recognition efficiency of OCR system bill image; Finally cause the OCR system can't discern bill, the picture that cuts out does not meet actual conditions fully:
1) bill image is of low quality, and voucher is put skew during like scanning, and light or instrument shading value etc. cause bill image frame lines unclear;
2) voucher made of paper itself is because of printing issues, and frame lines lighter color causes bill image frame lines unclear;
3) design of voucher made of paper itself is bad: too simply caused the multi-line characteristic close like lines, too complicated, or near the key element the characteristic character receives the interference of hand filling information;
4) the voucher kind is too much: the voucher that present miscellaneous service relates to is more and more, and the similarity of voucher integral body is also increasingly high, and program is difficult to distinguish;
5) other artificial factor: be folded fold etc. like voucher made of paper.
Because the existence of above problem deviation occurs through regular meeting when the OCR system discerns bill type through image, in a single day bill type declares mistake, and the image cutting and the typing of back also can't be carried out, and have had a strong impact on system handles efficient.So need a kind of new technological means to improve the discrimination of OCR system to the voucher image.
Summary of the invention
The technical matters that (one) will solve
In order to overcome existing bank certificate format and the low problem of relevant factor discrimination; Fundamental purpose of the present invention is to propose a kind of bill evidence and system that improves the electron image recognition efficiency, with the recognition correct rate of raising bill evidence and the accuracy rate of bill evidence key element location.
(2) technical scheme
For achieving the above object; The invention provides a kind of bill evidence of improving the electron image recognition efficiency; This bill evidence realizes having voucher title, each key element area information and image in 2 D code at least based on planar bar code technology, wherein this voucher title can comprise check or pay-in slip; This each key element area information can comprise voucher number, the amount of money and number of the account, and this image in 2 D code can comprise bill type and business factor information at least.
In the such scheme, this business factor information can comprise number of the account, voucher number and serial number.Image in 2 D code in this bill evidence, the position in this bill evidence can be by accurate control.In this bill evidence, the position of image in 2 D code is used as the standard origin position, and in this bill evidence between other key element zone relative position fix.
For achieving the above object; The present invention also provides a kind of system that improves the bill image recognition efficiency; This system comprises two-dimensional code generation module 201, two-dimension code print module 202, bill image acquisition module 203,2 D code information read module 204, bill image correction module 205, bill image cutting module 206, OCR identification typing module 207 and manual typing module 208; Wherein, Two-dimensional code generation module 201 is connected in two-dimension code print module 202; Bill image acquisition module 203,2 D code information read module 204, bill image correction module 205 are connected with bill image cutting module 206 successively, and bill image cutting module 206 is connected to OCR identification typing module 207 and manual typing module 208, and OCR identification typing module 207 is connected in manual typing module 208 simultaneously.
In the such scheme; This two-dimensional code generation module 201 generates two-dimension code according to bill evidence's mother matrix electron image information data; The two-dimension code that generates is sent to two-dimension code print module 202, and the coordinate record that each key element of the type bill evidence is regional is in host data base.The data content that this two-dimension code has comprises bill evidence's format code and bill fixed data information at least, and wherein, a kind of bill evidence has unique format code, and this bill fixed data information can comprise bill flowing water sequence number and number of the account at least.
In the such scheme, this two-dimension code print module 202 synthesizes two-dimensional code electronic data and bill electron image, accurately controls the position of two-dimension code on bill, and is printed as the paper-bill voucher.
In the such scheme, this bill image acquisition module 203 obtains the electron image of this paper-bill voucher through scan mode, then the electron image of this paper-bill voucher is delivered to 2 D code information read module 204.
In the such scheme; This 2 D code information read module 204 reads image in 2 D code from the electron image of this paper-bill voucher; Thereby obtain bill evidence's format code, bill fixed data information and two-dimension code attribute (like coordinate, side-play amount etc.) information, then the 2 D code information that reads is delivered to bill image correction module 205.
In the such scheme; This bill image correction module 205 is rectified a deviation to the electron image of bill evidence according to the 2 D code information that this 2 D code information read module 204 reads, and gives bill image cutting module 206 with the 2 D code information and the electron image of the bill evidence after handling of rectifying a deviation.The electron image of these 205 pairs of bill evidences of bill image correction module is rectified a deviation; Comprise: this bill image correction module 205 is set up coordinate system according to the two-dimension code zone; The degree of tilt in two-dimension code zone in the electron image of identification bill evidence; With the two-dimension code zone is initial point, according to the degree of tilt of image in 2 D code itself electron image of bill evidence is carried out whole correction, thereby the voucher direction misplaces phenomenon when preventing that the teller from scanning.This bill image correction module 205 is set up coordinate system according to the two-dimension code zone, is to be initial point with the upper left corner, two-dimension code zone, and the going up of two-dimension code zone cut edge and the left cut limit is horizontal axis of ordinates, sets up coordinate system.
In the such scheme; This bill image cutting module 206 judges according to the bill evidence's format code in the image in 2 D code which type voucher the electron image of the bill evidence after correction is handled belongs to; In host data base, read each area coordinate and the dimension information of such voucher with respect to the two-dimension code initial point; Combine to identify the origin of two-dimension code itself with this, and then accurately orient the relative position in each zone to be cut; Bill image cutting module 206 cuts according to the electron image of the coordinate information in each the key element to be cut zone bill evidence after to correction; Each essential of voucher is cut into some image fragments; And the image fragment of machine type fount or seal content sent to OCR identification typing module 207, the image fragment of client's Hand writing is sent to manual typing module 208.
In the such scheme, the image fragment of 207 pairs of machine block letter of this OCR identification typing module carries out OCR identification, and recognition result is recorded in the database, simultaneously the key element information that comprises in the image in 2 D code also is recorded into database.
In the such scheme, do not comprise the image fragment that image fragment and the OCR identification typing module 207 of client's Hand writing can't be discerned in 208 pairs of image in 2 D code of this craft typing module, the mode that adopts artificial input with content record in database.
(3) beneficial effect
Present two-dimension code algorithm is comparative maturity, is arrived all trades and professions by successful Application, and its effect is also manifesting gradually.As the bank finance industry, also be to accelerate to build the e-finance system that is based upon on computing machine and the network communications technology basis at present, press for the processing speed that improves its bill operation.And the application of planar bar code technology in bank money can bring great promotion for this demand.Therefore, the present invention has following beneficial effect:
1, the bill evidence and the system of raising electron image recognition efficiency provided by the invention have improved the recognition correct rate of bill evidence and the accuracy rate of bill evidence key element location effectively.The two-dimension code discrimination is higher; Can reach more than 90%; Two-dimension code has added the alternative computing under stained, misalignment in forming process; Therefore two-dimension code has certain error-checking ability and error correcting ability, and generally speaking, two-dimension code still can obtain correct information reverting being damaged under 1/3rd the state.The characteristic of these two-dimension codes all is the brute force guarantee through two-dimension code identification voucher.Under the correct prerequisite of two-dimension code identification itself, voucher format, origin etc. can successfully obtain, and do not receive the influence of the limiting factors such as lines or characteristic character of voucher quantity, voucher itself basically, greatly the discrimination of raising and voucher.
2, the bill evidence and the system of raising electron image recognition efficiency provided by the invention have alleviated teller's workload and operation easier greatly.On the one hand for the teller of foreground, the position is put and need not accurately especially during the scanning voucher, reduces the requirement to the foreground teller, simultaneously because voucher quantity is more at present, automatically after the identification, can reduce the workload that the foreground teller selects corresponding voucher format at voucher; On the other hand; Information also can comprise partial service information (the for example number of the account of check number, Send only Account information, name in an account book, bank of deposit etc.) in the two-dimension code; In follow-up parallel typing process, reduce typing teller workload, also can prevent simultaneously to scurry the family, embezzle funds.
Description of drawings
Fig. 1 is the effect figure of image in 2 D code on actual check according to the embodiment of the invention;
Fig. 2 is the synoptic diagram according to the system of the raising bill image recognition efficiency of the embodiment of the invention;
Fig. 3 is the method flow diagram according to the raising check only for account image recognition efficiency of the embodiment of the invention.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, to further explain of the present invention.
As shown in Figure 1; The present invention proposes a kind of bill evidence of improving the electron image recognition efficiency; This bill evidence realizes based on planar bar code technology, is a kind of bill evidence that combines planar bar code technology, and this bill evidence has voucher title, each key element area information and image in 2 D code etc. at least; Wherein this voucher title can comprise check or pay-in slip etc.; This each key element area information can comprise voucher number, the amount of money and number of the account etc., and this image in 2 D code can comprise bill type and business factor information at least, and this business factor information can comprise number of the account, voucher number and serial number etc.
For the image in 2 D code in this bill evidence, wherein the position in this bill evidence can be by accurate control.In this bill evidence, the position of image in 2 D code is used as the standard origin position, and in this bill evidence between other key element zone relative position fix.The concrete visible effect figure of image in 2 D code on actual check according to the embodiment of the invention shown in Figure 1.
Aspect Layout Recognition, two-dimension code identification is with respect to discerning format stronger aspect the anti-interference through the OCR technology simultaneously.The voucher lines format that every of OCR technical requirement is used to discern gets very close, aspects such as scanning shift or paper folding also can cause very large interference to the OCR Layout Recognition.And two-dimension code can overcome this type problem to a great extent, and this depends primarily on two kinds of technological realization mechanisms different of two-dimension code identification and OCR Layout Recognition.
The OCR Layout Recognition is through discerning the relative position of all lines, the special color of assigned address, the modes such as designated character of assigned address whole image search; To confirm concrete type of credentials, so require all very high for the standardization on material object is printed and scanned of voucher.And discern for two-dimension code; Two-dimension code itself has a fixing image in 2 D code that generates according to algorithm known; Program at first identifies its particular location of image in 2 D code in image when identification, and can obtain its comparatively accurate coordinate, decodes according to image in 2 D code again; Decoding algorithm is at present in the field of business also very ripe, and recognition accuracy can well be ensured.So this also significantly reduces the standardized dependence of voucher, reduce the requirement in the scan operation process to the scanning teller, simultaneously also very large program improve the correct recognition rata of voucher in the actual production process.
The present invention also proposes a kind of system that improves the bill image recognition efficiency; As shown in Figure 2, this system comprises two-dimensional code generation module 201, two-dimension code print module 202, bill image acquisition module 203,2 D code information read module 204, bill image correction module 205, bill image cutting module 206, OCR identification typing module 207 and manual typing module 208.Wherein, Two-dimensional code generation module 201 is connected in two-dimension code print module 202; Bill image acquisition module 203,2 D code information read module 204, bill image correction module 205 are connected with bill image cutting module 206 successively; Bill image cutting module 206 is connected to OCR identification typing module 207 and manual typing module 208, and OCR identification typing module 207 is connected in manual typing module 208 simultaneously.
Respectively the function of individual composition module is described in detail below.
Two-dimensional code generation module 201: this module generates two-dimension code according to bill evidence's mother matrix electron image information data; The two-dimension code that generates is sent to two-dimension code print module 202, and the coordinate record that each key element of the type bill evidence is regional is in host data base.The data content that this two-dimension code has comprises: bill evidence's format code (a kind of voucher has unique ID); Bill fixed data information (like bill flowing water sequence number, number of the account) etc.
Two-dimension code print module 202: this module is responsible for two-dimensional code electronic data and bill electron image are synthesized, and accurately controls the position of two-dimension code on bill, and is printed as the paper-bill voucher.
Bill image acquisition module 203: this module is responsible for obtaining through modes such as scannings the electron image of this paper-bill voucher, then the electron image of this paper-bill voucher is delivered to 2 D code information read module 204.
2 D code information read module 204: this module is responsible for reading image in 2 D code from the electron image of this paper-bill voucher; Thereby obtain bill evidence's format code, bill fixed data information (like bill flowing water sequence number, number of the account) and two-dimension code attribute information such as (like coordinate, side-play amounts etc.), then the 2 D code information that reads is delivered to bill image correction module 205.
Bill image correction module 205: this module is rectified a deviation to the electron image of bill evidence according to the 2 D code information that this 2 D code information read module 204 reads.Whole relatively voucher position, two-dimension code zone fixed; It (is initial point with the upper left corner, two-dimension code zone for example that bill image correction module 205 is set up coordinate system according to the two-dimension code zone; The upward side cut and the left cut limit in two-dimension code zone are horizontal axis of ordinates); The degree of tilt in two-dimension code zone in the electron image of identification bill evidence; With the two-dimension code zone is initial point, according to the degree of tilt of image in 2 D code itself electron image of bill evidence is carried out whole correction, thereby the voucher direction misplaces phenomenon situation such as (vertical, reverse or) inclinations when preventing that the teller from scanning; The electron image of the bill evidence after 2 D code information is handled with correction is sent to bill image cutting module 206.
Bill image cutting module 206: this module judges according to the bill evidence's format code in the image in 2 D code which type voucher the electron image of the bill evidence after correction is handled belongs to; In host data base, read each area coordinate and the dimension information of such voucher with respect to the two-dimension code initial point; Combine to identify the origin of two-dimension code itself with this, and then accurately orient the relative position in each zone to be cut.The origin of two-dimension code itself identifies in identification two-dimension code credential process in the lump; So two-dimension code is in case after discerning successfully; The all properties of two-dimension code can both get access to, and comprises the degree of tilt of the data message that comprises in the two-dimension code, two-dimension code origin, image in 2 D code.Bill image cutting module 206 cuts according to the electron image of the coordinate information in each the key element to be cut zone bill evidence after to correction, and (like number of the account, the amount of money, payee etc.) cut into some image fragments with each essential of voucher.Essential of voucher generally can divide two types according to ways of writing; A kind of is machine printing type face (as being printed on the number of the account on the check, the line pay title on the official seal etc.); This type of font very standard is easy to discerned by OCR; A kind of in addition is client's hand-written script (such as cheque sum, client's handwritten signature etc.), and this type of font difference is difficult to by the OCR system identification more greatly.Bill image cutting module 206 sends to OCR identification typing module 207 with the image fragment (like number of the account, line pay title etc.) of contents such as machine type fount or seal, and the image fragment (like the amount of money, signature etc.) of client's Hand writing is sent to manual typing module 208.
OCR identification typing module 207: this module is responsible for the image fragment of machine block letter is carried out OCR identification, and recognition result is recorded in the database, simultaneously the key element information that comprises in the image in 2 D code also is recorded into database.OCR identification typing module 207 is connected with manual typing module 208, and the image fragment that OCR identification typing module 207 can't be discerned is sent out to manual typing module 208.
Manual typing module 208: the image fragment that this module can't be discerned (like the amount of money, the signature etc.) that do not comprise client's Hand writing in the image in 2 D code and OCR identification typing module 207 adopt the artificial mode of importing with content record in database.
As shown in Figure 3, combine the instance of " check only for account " at present, the system of raising bill image recognition efficiency provided by the invention is described in detail.
Step S201: two-dimensional code generation module 201 generates two-dimension code according to bill mother matrix electron image information data, and the coordinate record that each key element of the type bill is regional is in host data base.This two-dimension code data content comprises: bill evidence's format code (a kind of voucher has unique ID); Some fixing data message information such as (like bill flowing water sequence number, numbers of the account) of bill.Two-dimensional code generation module 201 sends to two-dimension code print module 202 with the two-dimension code that generates and handles.
Step S202: two-dimension code print module 202 synthesizes two-dimensional code electronic data and bill electron image, accurately controls the position of two-dimension code on bill, and is printed as the paper-bill voucher.
Step S203: bank provides printed check only for account to the client and uses, the amount of money that writes a cheque in client's use, operation such as with an official seal affixed.
Step S204: the client returns bank with used check.
Step S205: bill image acquisition module 203 obtains the electron image of paper-bill voucher through modes such as scannings, and the electron image that gets access to is delivered to 2 D code information read module 204 handle.
Step S206: 2 D code information read module 204 reads the two-dimension code data on bill evidence's electron image; Thereby obtain bill evidence's format code, bill fixed data information such as (like bill flowing water sequence number, numbers of the account), and the two-dimension code data are delivered to bill image correction module 205 handle.
Step S207: bill image correction module 205 is rectified a deviation to the bill electron image according to the two-dimension code data.Whole relatively voucher position, two-dimension code zone fixed; It (is initial point with the upper left corner, two-dimension code zone for example that bill image correction module 205 is set up coordinate system according to the two-dimension code zone; The upward side cut and the left cut limit in two-dimension code zone are horizontal axis of ordinates); The degree of tilt in two-dimension code zone is an initial point with the two-dimension code zone in the identification bill image, according to the degree of tilt of image in 2 D code itself the voucher image is carried out whole correction; Thereby the voucher direction misplaces phenomenon situation such as (vertical, reverse or) inclinations when preventing that the teller from scanning.Bill image after bill image correction module 205 is handled two-dimension code data and correction is delivered to bill image cutting module 206 and is handled.
Step S208: bill image cutting module 206 judges according to the bill evidence's format code in the image in 2 D code which type voucher image belongs to; In host data base, read corresponding each regional coordinate and the dimension information of such voucher, can accurately orient the relative position in each zone to be cut with this origin that combines to identify two-dimension code itself.Bill image cutting module 206 cuts the bill image after rectifying a deviation according to the coordinate information in each key element to be cut zone, and (like number of the account, the amount of money, payee etc.) cut into some image fragments with each essential of voucher.Essential of voucher generally can divide two types according to ways of writing; A kind of is machine type fount or seal font (as being printed on the number of the account on the check, the line pay title on the official seal etc.); This type of font very standard is easy to discerned by OCR; A kind of in addition is client's hand-written script (such as cheque sum, client's handwritten signature etc.), and this type of font difference is difficult to by the OCR system identification more greatly.Bill image cutting module 206 sends to OCR identification typing module 207 with the image fragment (like number of the account, line pay title etc.) of contents such as machine type fount or seal and handles, and the image fragment (like the amount of money, signature etc.) of client's Hand writing is sent to manual typing module 208 handle.
Be illustrated in the face of " check only for account " image cutting process process down.
Cutting process step 1: bill image cutting module 206 judges that according to the bill evidence's format code in the image in 2 D code image belongs to " check only for account ", and bill image cutting module 206 has read " check only for account " corresponding each regional coordinate and dimension information in host data base.
Cutting process step 2: it (is initial point with the upper left corner, two-dimension code zone for example that bill image cutting module 206 is set up coordinate system according to the true origin of image in 2 D code itself; The upward side cut and the left cut limit in two-dimension code zone are horizontal axis of ordinates), cut according to the relative coordinate information in each key element zone.The upper left corner coordinate regional such as the amount of money of check only for account is (5; 10) the expression amount of money upper left corner, zone 10 pixels below the two-dimension code initial point; 5 location of pixels in initial point the right; In like manner the lower right corner coordinate in the amount of money of check only for account zone is (35,15) expression amount of money lower right corner, zone 15 pixels below initial point, 35 location of pixels in initial point the right.Bill image cutting module 206 can cut out a rectangular amount of money area image fragment according to these two coordinates.
Step S209:OCR identification typing module 207 is carried out OCR identification with the image fragment of type-script, seal body, and recognition result is recorded in the database, simultaneously the key element information that comprises in the image in 2 D code also is recorded into database.
Step S210: do not comprise in 208 pairs of image in 2 D code of manual typing module modes that two types of image fragments that image fragment (like the amount of money, signature etc.) and the OCR of client's Hand writing can't discern adopt artificial input with content record in database.
Step S211: the bill image processing finishes.
Above-described specific embodiment; The object of the invention, technical scheme and beneficial effect have been carried out further explain, and institute it should be understood that the above is merely specific embodiment of the present invention; Be not limited to the present invention; All within spirit of the present invention and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (16)
1. bill evidence of improving the electron image recognition efficiency; It is characterized in that; This bill evidence realizes having voucher title, each key element area information and image in 2 D code at least based on planar bar code technology, wherein this voucher title comprises check or pay-in slip at least; This each key element area information comprises voucher number, the amount of money and number of the account at least, and this image in 2 D code comprises bill type and business factor information at least.
2. the bill evidence of raising electron image recognition efficiency according to claim 1 is characterized in that, this business factor information comprises number of the account, voucher number and serial number at least.
3. the bill evidence of raising electron image recognition efficiency according to claim 1 is characterized in that, the image in 2 D code in this bill evidence, and the position in this bill evidence can be by accurate control.
4. the bill evidence of raising electron image recognition efficiency according to claim 1; It is characterized in that; In this bill evidence, the position of image in 2 D code is used as the standard origin position, and in this bill evidence between other key element zone relative position fix.
5. system that improves the bill image recognition efficiency; Be applied to each described bill evidence in the claim 1 to 4; It is characterized in that; This system comprises two-dimensional code generation module (201), two-dimension code print module (202), bill image acquisition module (203), 2 D code information read module (204), bill image correction module (205), bill image cutting module (206), OCR identification typing module (207) and manual typing module (208); Wherein, Two-dimensional code generation module (201) is connected in two-dimension code print module (202); Bill image acquisition module (203), 2 D code information read module (204), bill image correction module (205) are connected with bill image cutting module (206) successively, and bill image cutting module (206) is connected to OCR identification typing module (207) and manual typing module (208), and OCR identification typing module (207) is connected in manual typing module (208) simultaneously.
6. the system of raising bill image recognition efficiency according to claim 5; It is characterized in that; This two-dimensional code generation module (201) generates two-dimension code according to bill evidence's mother matrix electron image information data; The two-dimension code that generates is sent to two-dimension code print module (202), and the coordinate record that each key element of the type bill evidence is regional is in host data base.
7. the system of raising bill image recognition efficiency according to claim 6; It is characterized in that; The data content that this two-dimension code has comprises bill evidence's format code and bill fixed data information at least; Wherein, a kind of bill evidence has unique format code, and this bill fixed data information comprises bill flowing water sequence number and number of the account at least.
8. the system of raising bill image recognition efficiency according to claim 5; It is characterized in that; This two-dimension code print module (202) synthesizes two-dimensional code electronic data and bill electron image, accurately controls the position of two-dimension code on bill, and is printed as the paper-bill voucher.
9. the system of raising bill image recognition efficiency according to claim 5; It is characterized in that; This bill image acquisition module (203) obtains the electron image of this paper-bill voucher through scan mode, then the electron image of this paper-bill voucher is delivered to 2 D code information read module (204).
10. the system of raising bill image recognition efficiency according to claim 5; It is characterized in that; This 2 D code information read module (204) reads image in 2 D code from the electron image of this paper-bill voucher; Thereby obtain the coordinate and the offset information of bill evidence's format code, bill fixed data information and two-dimension code, then the 2 D code information that reads is delivered to bill image correction module (205).
11. the system of raising bill image recognition efficiency according to claim 5; It is characterized in that; This bill image correction module (205) is rectified a deviation to the electron image of bill evidence according to the 2 D code information that this 2 D code information read module (204) reads, and gives bill image cutting module (206) with the 2 D code information and the electron image of the bill evidence after handling of rectifying a deviation.
12. the system of raising bill image recognition efficiency according to claim 11 is characterized in that, this bill image correction module (205) is rectified a deviation to the electron image of bill evidence, comprising:
This bill image correction module (205) is set up coordinate system according to the two-dimension code zone; The degree of tilt in two-dimension code zone in the electron image of identification bill evidence; With the two-dimension code zone is initial point; According to the degree of tilt of image in 2 D code itself electron image of bill evidence is carried out whole correction, thereby the voucher direction misplaces phenomenon when preventing that the teller from scanning.
13. the system of raising bill image recognition efficiency according to claim 12; It is characterized in that; This bill image correction module (205) is set up coordinate system according to the two-dimension code zone; Be to be initial point with the upper left corner, two-dimension code zone, the going up of two-dimension code zone cut edge and the left cut limit is horizontal axis of ordinates, sets up coordinate system.
14. the system of raising bill image recognition efficiency according to claim 5; It is characterized in that; This bill image cutting module (206) judges according to the bill evidence's format code in the image in 2 D code which type voucher the electron image of the bill evidence after correction is handled belongs to; In host data base, read each area coordinate and the dimension information of such voucher with respect to the two-dimension code initial point; Combine to identify the origin of two-dimension code itself with this, and then accurately orient the relative position in each zone to be cut; Bill image cutting module (206) cuts according to the electron image of the coordinate information in each the key element to be cut zone bill evidence after to correction; Each essential of voucher is cut into some image fragments; And the image fragment of machine type fount or seal content sent to OCR identification typing module (207), the image fragment of client's Hand writing is sent to manual typing module (208).
15. the system of raising bill image recognition efficiency according to claim 5; It is characterized in that; This OCR identification typing module (207) is carried out OCR identification to the image fragment of machine block letter; And recognition result is recorded in the database, simultaneously the key element information that comprises in the image in 2 D code also is recorded into database.
16. the system of raising bill image recognition efficiency according to claim 5; It is characterized in that; The image fragment that this craft typing module (208) can't be discerned the image fragment that do not comprise client's Hand writing in the image in 2 D code and OCR identification typing module (207), the mode that adopts artificial input with content record in database.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210011581.XA CN102567764B (en) | 2012-01-13 | 2012-01-13 | A kind of bill evidence and system improving electron image recognition efficiency |
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| CN201210011581.XA CN102567764B (en) | 2012-01-13 | 2012-01-13 | A kind of bill evidence and system improving electron image recognition efficiency |
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| CN102567764A true CN102567764A (en) | 2012-07-11 |
| CN102567764B CN102567764B (en) | 2016-03-02 |
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