CN1260676C - Bills processing method and device - Google Patents
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- CN1260676C CN1260676C CNB011243988A CN01124398A CN1260676C CN 1260676 C CN1260676 C CN 1260676C CN B011243988 A CNB011243988 A CN B011243988A CN 01124398 A CN01124398 A CN 01124398A CN 1260676 C CN1260676 C CN 1260676C
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Abstract
An device pattern is acquired from image data to be processed by the area division. The element pattern determined to express at least a part of the seal image out of the acquired element pattern in selected and extracted, and the center position and the radius of the seal image are calculated based on the selected element pattern , and image data of the seal image is acquired based on the center position and the radius. The acquired seal image is compared and collated with the seal image registered on this device for processing document.
Description
Technical field
The present invention relates to a kind of bill processing method and device, be used for handling automatically the document of list and so in the electronics mode.
Background technology
Handle the electronic part of operation as list in the financial institution, the requirement that the realization seal marking is checked robotization grows with each passing day.For example, a kind of technology that will check/confirm with the corresponding fit seal marking of account and the seal marking on different receipt lists in the electronics mode can alleviate the labor capacity in the business operation greatly, and improve processing speed.
It is exactly a kind of technology of checking two seal markings in the electronics mode that the so-called seal marking is checked technology.Two seal markings all are converted to digital image with photovoltaic, and wherein, one is the seal marking of fit, and one is actual list.When the pixel data of two seal markings overlapped each other, this technology was determined the coincidence situation according to the coincidence factor that is obtained.
In fact, the seal marking of fit is always not identical with actual list seal marking making angle.Therefore, consider the difference between the seal angle, when the rotation marking, must check.And the operation of affixing one's seal by hand is inaccurate.Therefore, even if affix one's seal stationkeeping, the seal marking also may be slightly different with the tram, and is perhaps variant on shade.Consider above-mentioned factor, so will check affirmation.
As mentioned above, because the technology of checking comprises complicated processing procedure, in checking, check device and must accurately know the position of the seal marking on actual list; Otherwise accuracy meeting variation perhaps needs the very long processing time to search for the seal marking.
If will carry out the mechanical check of the seal marking effectively, will determine the position of the seal marking from the list image that reads by opto-electronic conversion, this point is very important.The prerequisite that routine is checked technology is, seal covers on list in the predetermined framework.In this framework, pixel is scanned, and determine the block of pixels of quilt, thereby calculate the position of the seal marking as the seal marking.Also have a kind of situation, the design of list itself is adopted and is leaked the look mode, when carrying out opto-electronic conversion, only occurs the seal marking that is used for checking on the image that obtains, thereby has simplified the work of calculating the seal stamp positions.
In fact, employed list is not limited to the list in the financial institution, can not look to always writing data to leak the look mode.When the needs processing had the list of unknown shape, the position of the seal marking was unpredictable at all.This extracts with regard to the whole image of the feasible search seal marking and with it and necessitates.
In addition, because seal is manual adding a cover, the position of affixing one's seal on actual list is normally uncertain.For example, the seal marking may be projected into beyond the predetermined frame, if perhaps do not build for the first time, can cover once the position outside framework again.Both having made is under such seal marking state, as long as can check with eyes, just must handle this seal marking as an effective seal marking.In this case, only leak the color table list, otherwise lines and character and the seal marking are interlaced with one another and are in the same place in the list, it is very difficult to cause searching for the seal marking.
Summary of the invention
The present invention considers the problems referred to above, and its purpose is effectively to determine the position of the seal marking, and improves the realizability of seal marking mechanical check.
According to the present invention, a kind of document treating apparatus is provided, be used for obtaining seal marking pattern from the document image, described document treating apparatus comprises: element pattern harvester, be used for handling from a plurality of element patterns of described document image acquisition by piecemeal, described piecemeal is handled the element pattern that comprises touching with the Form Frame bridge joint and is carried out the processing of piecemeal; Selecting arrangement is used for the element pattern according to whether the size of element pattern and element pattern comprise bow, the element pattern that obtains from described element pattern harvester is chosen as the part of seal marking pattern; Calculation element is used for the position that the bow of the element pattern selected according to described selecting arrangement calculates seal marking pattern; And seal marking pattern harvester, the position that is used for calculating according to described calculation element obtains the pictorial data of seal marking pattern from the document image.
According to the present invention, a kind of bill processing method also is provided, be used for obtaining seal marking pattern from the document image, described method comprises: element pattern acquisition step, handle from a plurality of element patterns of described document image acquisition by piecemeal, described piecemeal is handled the element pattern that comprises touching with the Form Frame bridge joint and is carried out the processing of piecemeal; Select step, whether comprise bow, from the element pattern that obtains in element pattern acquisition step, be chosen as the element pattern of the part of seal marking pattern according to the size and the element pattern of element pattern; Calculation procedure, the position of calculating seal marking pattern according to the bow of the element pattern of in selecting step, selecting; And seal marking pattern acquisition step, from the document image, obtain the pictorial data of seal marking pattern according to the position that in calculation procedure, calculates.
From the description of carrying out below in conjunction with accompanying drawing, can obviously find out other features and advantages of the present invention.Reference numeral identical among the figure is represented same or analogous parts in all figure.
Description of drawings
Accompanying drawing is included in the instructions and constitutes the part of instructions, illustrates embodiments of the invention.Accompanying drawing has been explained principle of the present invention with instructions.
Fig. 1 is a skeleton view, according to first embodiment, has schematically illustrated the seal marking and has checked device;
Fig. 2 is a block diagram, according to first embodiment, shows that the seal marking checks the function layout of device;
Fig. 3 is a process flow diagram, according to first embodiment, has explained the process of seal marking collation process;
Fig. 4 is a process flow diagram, according to first embodiment, has explained the piecemeal processing procedure;
Fig. 5 is a process flow diagram, according to first embodiment, has explained seal marking element extraction process;
Fig. 6 A and 6B are the views of explaining the piecemeal processing procedure;
Fig. 7 A and 7B show to carry out the example as a result that is obtained after the list piecemeal processing procedure;
Fig. 8 A is the view that shows 8 continuous black-pixel region examples;
Fig. 8 B is the view that shows 4 continuous white pixel zone examples;
This group view of Fig. 9 A, 9B and 9C shows the example of one group 4 continuous inner white pixel regions respectively;
Figure 10 is the view that shows the example of the tree structure that is made of each element that piecemeal obtained;
Figure 11 is the view of example that shows the information of the element that piecemeal obtained;
Figure 12 is the view of an example, shows how the black picture element in the white portion is forced to dismiss in the framework; And
Figure 13 is a view of explaining arc and radius relationship.
Embodiment
Below in conjunction with accompanying drawing a preferred embodiment of the present invention is elaborated.
Fig. 1 schematically illustrates a seal marking and checks device according to an embodiment.Reference numeral 101 representatives are used to carry out the computing machine of list sort program according to present embodiment.Computing machine 101 comprises the display unit 102 that is used for to user's display process state, list image etc., and the input interface 103 such as keyboard or mouse that is used for accepting the performed operation of user.Reference numeral 104 is represented scanner, reads list on the paper with optical mode, carries out digitized processing, then final pictorial data is sent to computing machine 101.Note, in the present embodiment, read list with scanner 104.Certainly, also can use digital camera or similar device that list is digitized into pictorial data.
Fig. 2 is the block diagram of an explanation first embodiment of the invention.
Reference numeral 201 is represented input block, is used for from the form data of scanner input image data form; 202 representatives divide module unit, are used for pictorial data is converted to element data, as character, non-character, framework and line data; 203 represent seal marking selected cell, are used for extracting from element data selectively the data of the similar seal marking; 204 represent a central computation unit, are used for calculating the centre coordinate of selected seal marking data; On behalf of a seal marking, 205 check the unit, is used for carrying out checking of the seal marking according to the image and the center of the seal marking.
According to having the present embodiment that above-mentioned functions is arranged, seal marking device is used to describe below.
Fig. 3 is a process flow diagram, has explained the roughly process in the seal marking collation process in the present embodiment.In step S301, the list image that has the seal marking is converted to digital image data by scanner.In the present embodiment, use binary image to carry out piecemeal and handle, on multilayer image rather than binary image, carry out the seal marking then and check.Therefore, the list image of being imported is stored as the multilayer image, generates a binary image from this multilayer image then.
In step S302, the binary image on the list will carry out piecemeal to be handled.Handle by piecemeal, the respective element of image is extracted as element data.Herein, piecemeal handle be a kind of from paper list scan the technology of extracting character and character position the resulting image, shown in Fig. 6 A and 6B.More particularly, extract the set of 8 continuous black-pixel regions from binary target image, extract the set in 4 continuous white pixel zones from the black picture element set, thereby according to extracting the result is the elemental characteristic of document with the target data piecemeal, for example, character (text), pattern/figure, form, framework and line.For example, at United States Patent (USP) 5,680, in 478 " method and apparatus of character recognition " (Shin-YwanWang etal./Canon K.K) this technology is disclosed.
In the present embodiment, in piecemeal processing each field (row) in being defined as the zone of framework (form), carry out, finally determine the character element that exists in each framework, non-character element etc. with recursive mode.Fig. 7 A and 7B have shown that carrying out the list piecemeal handles the result that the back is obtained.The detailed content that piecemeal is handled will be described later.
In step S303, the element that can be used as the seal marking or a seal marking part handled the element data that is obtained from piecemeal select/extract, then by selected/unit of extracting usually center and the radius of drawing for estimate Zhang Yinji.The detailed content of relevant this processing procedure will be described below.
In step S304, according to center that obtains in step S303 and radius (R), the multilayer image from reality input list obtains seal marking part, and checks with the seal marking image of the fit seal marking.Note having only circular image to come out, be used for checking that the rectangle image that perhaps only comprises seal marking part can extract, and is used for checking with the seal marking image of fit with fit seal marking image from seal marking extracting section.For example, if the length of side of a square image region is 2R, the center of being tried to achieve overlaps with the center of this rectangle, then extracts, and uses the image extracted and fit seal marking image to carry out the seal marking and check.Note, have a kind of prior art can be used for this audit process, thereby repeat no more herein.
To describe the piecemeal processing procedure that in step S302, to carry out below in detail.Fig. 4 is a process flow diagram, and the piecemeal processing procedure in the present embodiment has been described.
In step S401, all set of 8 continuous black-pixel regions from image, have been extracted.A set of 8 continuous black-pixel regions is set of the black picture element that contacts with each other at vertical, level and vergence direction, shown in Fig. 8 A.This zone hereinafter will be referred to as black region, and this is a least member of forming image.The minimum rectangle that comprises this black region will abbreviate black region rectangle (representing with the dashed rectangle among Fig. 8 A) hereinafter as.
In step S402, if height that black region had in the black region rectangle and width during less than maximum character height of being predicted and width higher limit, this zone is confirmed as a " char ".In step S403, if the black region in the black region rectangle, its laterally or longitudinally height-width or show a kind of shape than being equal to or greater than predetermined ratio with oblique line of predetermined thickness, then be confirmed as one " line ".In step S404, will check whether the black region rectangle is equal to or greater than predetermined size.If the check result in step S404 is a "Yes", then advance to step S405.If the check result in step S404 is a "No", then determining black region is " non-character ".Notice that " non-character " is regarded as a set that comprises pattern, photo, the seal marking or its ingredient etc.
In step S405, (reason that the notion in 4 contiguous pixels zones is applied to white pixel is to have the set in 4 continuous white pixel zones in a rectangle black region, if as black picture element, with 8 contiguous pixels area applications to white pixel, then in the oblique line part, white pixel block will be outstanding from the black picture element piece).Shown in Fig. 8 B, 4 continuous white pixel zones are the white pixel set that only contacts with each other in level and vertical direction.Shown in Fig. 8 A, 8 continuous black-pixel region set are extracted as a zone.In contrast to this, shown in Fig. 8 B, the set in 4 continuous white pixel zones is extracted as two zones.This zone is called white portion hereinafter, and the minimum rectangle that comprises this white portion hereinafter will be referred to as white portion rectangle (representing with the dashed rectangle among Fig. 8 B).
If determine not have when filling black region from one or more white portion rectangles of black region rectangular extraction overlapping in step S406, this black region is confirmed as " framework ".If the execution result of step S406 is a "No", then this zone is confirmed as " non-character " zone.For example, in the situation shown in Fig. 9 A and the 9B, owing to do not have when extracting white portion overlappingly, then this zone is confirmed as framework.In the situation shown in Fig. 9 C, owing to extracted overlapping white portion rectangle, this zone is confirmed as non-character zone.
At step S407,8 the continuous black-pixel regions of each white portion rectangular extraction from each rectangular extent in " framework ".At step S408, contact with border between " framework " interior white portion rectangle if having the black picture element piece that is equal to or greater than pre-sizing, then dismiss by force along the border that will be extracted as black region.Figure 12 shows that an example, how to illustrate with the black picture element piece by force the white portion rectangle in the framework dismiss.That is to say that at step S407, the character in unit or the black picture element piece of the seal marking come out with the corresponding white portion rectangular extraction in each unit from the form framework.In step S408, extract, and the black picture element piece that contacts with elementary boundary extracted by force, thereby the black picture element piece in the white portion rectangle is extracted as black region at step S407.In step S408, as shown in figure 12,, be equal to or greater than pre-sizing, and be arranged in a frame area of form, and contact with inner frame if a black picture element piece is arranged.Then this black picture element piece is extracted as a black region with pressure.That is to say, in the collection of pixels that from black region, constitutes significant or inner frame, collect with the tangent rectangle of corresponding white portion in the black picture element that exists, generate black region.
At the set of the black region that extracts in step S407 and step S408, the processing procedure by step S402 and subsequent step will repeat.This process finishes when this recursive search stops.
In above-mentioned processing procedure, when minute termination of a block, generate the tree structure of a similar element shown in Figure 10 from the black and white zone.Each element all has a kind of attribute, the top-left coordinates and the bottom right coordinate of restriction rectangle, and the profile information that constitutes the block of pixels of element.In the middle of these data, profile information is a list collection, when having listed on each Y coordinate to the element horizontal resection, and the starting point and the terminal point of black picture element continuously.Figure 11 shows that the example of the information that element had.
The element that can be used as the seal marking or a seal marking part is selected from element data, and described element data is handled acquisition by carry out piecemeal in aforesaid step S303, and the center of the seal marking and radius can be estimated to draw.To describe this processing procedure in detail below.
Fig. 5 is a process flow diagram, according to present embodiment, has explained seal marking element extraction process (the step S303 among Fig. 3).In step S501, according to predetermined upper limit value, whether an element size determining tree construction shown in Figure 10 a part of corresponding with the seal marking or the seal marking.If the execution result of step S501 is a "Yes", then advance to step S502.In step S502, obtain a point sequence, connect the X coordinate points of high order end on the corresponding Y coordinate.In step S503, check whether this point sequence is an arc that coordinate figure gradually changes.
In this deterministic process, check point sequence X coordinate offset whether dull the increasing of the value that obtained of differentiating, and whether point sequence length is equal to or greater than predetermined value.If determine that in step S503 point sequence is an arc, then advances to step S504.
In the present embodiment, the process of execution in step S504 is from the point sequence that the acquisition of element profile information is made up of the X coordinate of high order end on the corresponding Y coordinate, to find out the arc that comprises a seal marking left side part then.In addition, can also obtain the point sequence formed by the X coordinate of low order end on the corresponding Y coordinate from the element profile information, inspection is differentiated to the skew of X coordinate among the step S504, and whether dullness descends the value that is obtained, whether point sequence length is equal to or greater than predetermined value, thereby finds out the arc that comprises a seal marking right-hand part part.What find out in the present embodiment, is the arc that comprises a seal marking left side part.But, also can find out the arc that comprises a seal marking right-hand part part, perhaps find out the arc that comprises a left side and a right-hand part part simultaneously.In the present embodiment, by checking, can determine whether given point sequence is " crooked gradually in one direction curve " to the X coordinate offset of point sequence whether dull the increasing (or dull minimizing) of the value that obtained of differentiating.Therefore, can be used as an arc to this point sequence.But, the invention is not restricted to this definite method, as long as can determine a camber line, any method can be used.
In step S504, suppose that the camber line by the point sequence representative is the part of circle, the radius of arc and center can calculate.Figure 13 has illustrated the radius of arc and the computing method of center.When if the X-Y coordinate system is set, as Y-axis, the point of contact is as initial point the tangent line of the arc AB among Figure 13, and then the formula with the tangent circle of Y-axis is
(x-r)
2+y
2＝r
2
Therefore, can obtain the radius R of arc AB by following formula
R＝(X
2+Y
2)/2X
In addition, the center thereby can draw from radius calculation on X-axis at an easy rate.In the present embodiment, the intermediate point of the arc AB that extracted is made as point of contact (initial point), carries out coordinate transform, will be parallel with straight line AB and the straight line that passes the point of contact be made as Y-axis.Formula above using then calculates radius of a circle and center.(note,, can carry out reverse coordinate transformation, try to achieve radius of a circle and center in the former coordinate system then owing to carried out coordinate transform when stating formula in the use.)
Notice that this point of contact (initial point) can be located at any position on the camber line, advanced row-coordinate conversion made the tangent line at point of contact as Y-axis, used above-mentioned formula to try to achieve radius and center then.
The present invention is not limited to and uses above-mentioned formula, as long as the arc that can pass through to be extracted is tried to achieve radius of a circle and center, any other mathematical formulae can use.
In step S505, check that the radius calculate is whether in predetermined length (size) scope in step S504.If the execution result of step S505 is a "Yes", then estimating this element is the seal marking with above-mentioned radius and center.
Suppose that when calculating radius and center the radius that calculates from a plurality of elements is identical (in predetermined error range) with the center.At this moment, radius and the center that draws the seal marking of estimation by the mean value of asking all radiuses and all centers.Suppose from individual element left profile, last profile and found out different segmental arcs with bottom profiled, can be in the hope of the radius and the center of these segmental arcs.At this moment, can obtain the mean value of all radiuses and all centers, obtain the radius and the center of the seal marking that estimates from element.
As mentioned above, according to present embodiment, block of pixels for its position unknown candidate's seal marking on the list binary image, at first be extracted as independently element data by piecemeal, and then extract satisfy specified criteria element data, and then only extract the seal marking effectively from whole image.Because the seal marking of striding framework is extracted as an element by step S408, special one carry be, even seal marking is outstanding in the form framework, striden across ruling when perhaps affixing one's seal, also can be extracted effectively.
Therefore, according to present embodiment,,, also can extract effectively even form framework or ruling have perhaps been crossed in the position the unknown of the seal marking by using the piecemeal technology in the seal stamp positions leaching process of checking at the seal marking.
＜other embodiment 〉
In the above-described embodiments, check, judge whether to be the seal marking all elements that extracts by piecemeal.But, if extracted the frame area of form and so on, then can only check the element in the frame area, judge whether to be the seal marking.If for example, guaranteeing in certain form has the seal marking, even form the unknown of list also can be extracted the seal marking effectively by carrying out said process.
Equally in this case, even the position the unknown of the seal marking, perhaps the seal marking is stepped out form framework or ruling, also can use the piecemeal technology to extract effectively in the seal stamp positions leaching process that the seal marking is checked.
In the above-described embodiments, use the seal marking that is extracted to carry out seal marking audit process.Certainly, the seal marking that is extracted also can be used for the fit seal marking.For example, can obtain data, the seal marking that these data of correspondence can fit/storage be extracted by the character recognition processing procedure of carrying out the list that reads.
What extract in the above-described embodiments is the circular seal marking.But, also can extract the oval-shaped seal marking.At this moment, from the element that piecemeal extracted, select to have the element of arc profile, judge elliptic region from the shape of camber line.At this moment, the mathematic(al) representation that uses among the step S504 can be replaced with the mathematic(al) representation of being derived by ellipse formula.If the oval seal marking that extracts is similar to circle, then can use in the foregoing description and ask for oval radius and center easily based on the mathematic(al) representation of round formula, approximate extraction comprises the zone of this ellipse seal marking.
The present invention goes for the system by multiple device (for example, main frame, interfacing equipment, reader, printer etc.) composition, also goes for comprising the device of individual equipment (for example, duplicating machine, facsimile recorder etc.).
Even by providing a kind of storage medium for system or device, stored energy is realized the software program code of each function of the foregoing description, and the computing machine of initiating system or device (or CPU or MPU) reads and carries out the program code that is stored in the storage medium, also can realize purpose of the present invention.At this moment, the program code of reading from storage medium itself just can be realized the various functions of the foregoing description, and program code stored storage medium then constitutes the present invention.The various functions of the foregoing description not only can realize when computing machine is carried out the program code read, and also the operating system that can be moved on computers is according to the instruction operating part of program code or all realize during actual process.
The various functions of the foregoing description also can realize under the following situation, promptly, when the program of reading from storage medium is write into the function expansion board that is inserted into computing machine or is connected to the storer of functional extender apparatus of computing machine, and the CPU of function expansion board or functional extender apparatus is according to the instruction operating part of program code or all during actual process.
As mentioned above, according to the present invention, can effectively determine the position of the seal marking.In addition, automatically the realizability checked with seal marking fit of the seal marking has improved.
Because the present invention has numerous different embodiment not deviate from core concept of the present invention and scope, is appreciated that the present invention except that appended claim, is not limited to certain embodiments.
Claims (12)
1. a document treating apparatus is used for obtaining seal marking pattern from the document image, and described document treating apparatus comprises:
Element pattern harvester is used for handling from a plurality of element patterns of described document image acquisition by piecemeal, and described piecemeal is handled the element pattern that comprises touching with the Form Frame bridge joint and carried out the processing of piecemeal;
Selecting arrangement is used for the element pattern according to whether the size of element pattern and element pattern comprise bow, the element pattern that obtains from described element pattern harvester is chosen as the part of seal marking pattern;
Calculation element is used for the position that the bow of the element pattern selected according to described selecting arrangement calculates seal marking pattern; And
Seal marking pattern harvester, the position that is used for calculating according to described calculation element obtains the pictorial data of seal marking pattern from the document image.
2. according to the document treating apparatus of claim 1, also comprise scanner, be used for reading document and produce the document image by optical mode.
3. according to the document treating apparatus of claim 1, also comprise and check device, be used for the pictorial data of the seal marking pattern that will obtain by described seal marking pattern harvester and check with the seal marking pattern of fit in advance.
4. according to the document treating apparatus of claim 1, wherein said calculation element calculates the center of seal marking pattern according to the coordinate figure of the bow of element pattern.
5. according to the document treating apparatus of claim 1, wherein, radius and center that described calculation element calculates seal marking pattern according to the part of the bow of element pattern, and
The pictorial data that radius that described seal marking pattern harvester basis calculates and center obtain seal marking pattern.
6. according to the document treating apparatus of claim 1, also comprise socket unit, be used for the seal marking pattern that fit is obtained by described seal marking pattern harvester.
7. a bill processing method is used for obtaining seal marking pattern from the document image, and described method comprises:
Element pattern acquisition step is handled from a plurality of element patterns of described document image acquisition by piecemeal, and described piecemeal is handled the element pattern that comprises touching with the Form Frame bridge joint and carried out the processing of piecemeal;
Select step, whether comprise bow, from the element pattern that obtains in element pattern acquisition step, be chosen as the element pattern of the part of seal marking pattern according to the size and the element pattern of element pattern;
Calculation procedure, the position of calculating seal marking pattern according to the bow of the element pattern of in selecting step, selecting; And
Seal marking pattern acquisition step is obtained the pictorial data of seal marking pattern from the document image according to the position that calculates in calculation procedure.
8. according to the bill processing method of claim 7, also comprise the steps, read document by optical mode and produce the document image.
9. according to the bill processing method of claim 7, also comprise checking step, the pictorial data of the seal marking pattern that will obtain in seal marking pattern acquisition step is checked with the seal marking pattern of fit in advance.
10. according to the bill processing method of claim 7, wherein, in calculation procedure, according to the coordinate figure of the bow of element pattern, the center of calculating seal marking pattern.
11. according to the bill processing method of claim 7, wherein,,, calculate the radius and the center of seal marking pattern according to the part of the bow of element pattern in calculation procedure, and
In seal marking pattern acquisition step, according to the pictorial data of radius that calculates and center acquisition seal marking pattern.
12. according to the bill processing method of claim 7, also comprise the fit step, be used for being linked in the seal marking pattern that seal marking pattern acquisition step obtains.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP224282/2000 | 2000-07-25 | ||
| JP2000224282 | 2000-07-25 | ||
| JP210923/2001 | 2001-07-11 | ||
| JP2001210923A JP3728224B2 (en) | 2000-07-25 | 2001-07-11 | Document processing apparatus and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1334543A CN1334543A (en) | 2002-02-06 |
| CN1260676C true CN1260676C (en) | 2006-06-21 |
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ID=26596642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011243988A Expired - Fee Related CN1260676C (en) | 2000-07-25 | 2001-07-25 | Bills processing method and device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3728224B2 (en) |
| KR (1) | KR100443693B1 (en) |
| CN (1) | CN1260676C (en) |
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| KR101080069B1 (en) | 2010-03-17 | 2011-11-08 | 대한민국 | Method Judging The Forged Sealing and Recording media |
| JP5593742B2 (en) * | 2010-03-09 | 2014-09-24 | 沖電気工業株式会社 | Seal verification device, seal verification system, seal verification method and program |
| JP2011197787A (en) * | 2010-03-17 | 2011-10-06 | Oki Electric Industry Co Ltd | Device and method for verifying seal impression and program |
| JP5593966B2 (en) * | 2010-08-27 | 2014-09-24 | 沖電気工業株式会社 | Seal verification device |
| CN102541480B (en) * | 2010-12-21 | 2014-12-24 | 北大方正集团有限公司 | Filtering method and device for printing |
| CN104346613B (en) * | 2013-08-08 | 2018-06-15 | 卡西欧计算机株式会社 | Image processing apparatus and image processing method |
| JP5854097B2 (en) * | 2014-07-30 | 2016-02-09 | 沖電気工業株式会社 | Imprint extraction device, seal extraction system, seal impression extraction method, program, and seal verification device |
| CN104468120B (en) * | 2014-11-26 | 2018-02-23 | 北京数字认证股份有限公司 | A kind of method and system for realizing Electronic Signature |
| CN104463931B (en) * | 2015-01-07 | 2017-12-22 | 昆山百润科技有限公司 | The method that the overlapping detection of seal and processing are realized under more concurrent stamped signature situations of people |
| CN105631447B (en) * | 2015-12-18 | 2019-02-15 | 杭州仁盈科技股份有限公司 | A kind of method of text in identification circular official seal |
| CN107358184A (en) * | 2017-06-30 | 2017-11-17 | 中国科学院自动化研究所 | The extracting method and extraction element of document word |
| CN108830133B (en) * | 2018-04-17 | 2020-02-21 | 平安科技（深圳）有限公司 | Contract image picture identification method, electronic device and readable storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH1196362A (en) * | 1997-09-17 | 1999-04-09 | Fujitsu Ltd | Seal impression collating device |
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- 2001-07-24 KR KR10-2001-0044390A patent/KR100443693B1/en not_active IP Right Cessation
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| KR20020009476A (en) | 2002-02-01 |
| JP3728224B2 (en) | 2005-12-21 |
| JP2002109521A (en) | 2002-04-12 |
| CN1334543A (en) | 2002-02-06 |
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