KR101301864B1 - Judging method of the order of sealing in document and the apparatus thereof - Google Patents

Abstract

PURPOSE: A before-and-after stamp sealing judgment method and a device thereof provide data for judging the time order of stamp sealing and text writing without a high cost and high performance device. CONSTITUTION: A before-and-after stamp sealing judgment device obtains a first image by photographing of a stamped part of a document (ST-110). The device exfoliates the stamped part and text part (ST-120). The device obtains a second image by photographing the stamped part (ST-130). The device calculates variation of the first and second pixels. [Reference numerals] (ST-110) First image obtaining stage; (ST-120) Exfoliation stage; (ST-130) Second image obtaining stage; (ST-140) Calculation stage

Description

Judgment Method Of The Order Of Sealing In Document And The Apparatus Thereof}

The present invention relates to a stamping method for printing after stamping and a device therefor, and more particularly, to a stamping method for printing after stamping and stamping a document on which stamping is stamped. It is about.

A seal is a name or tube name engraved on the tensile surface, and Inyoung refers to a seal stamped by pressing a paper or the like with a seal embedded in the seal. The seal came from ancient Mesopotamia. Made of stone, clay, bones, shells, etc., to mark their possessions. Currently, it is manufactured by carving on animal bones such as wood, stone, ivory, etc., and is widely used as a means of identifying a person in Asian countries such as Korea, Japan, and China. In a broad sense, the seal also includes stamps used by Western cultures to indicate receipt of documents.

In order to confirm the authenticity of the document in the seal stamp, it is judged whether or not the seal stamped on the document is stamped by the forged seal. Research is underway to make a formal judgment. Korean patent application No. 10-2010-0046553 patent application is to analyze the spectrum of the seal and signature using the high-performance resolution of the Micro ATR-FTIR spectroscopy, the authenticity of the seal and signature, the authenticity of the document and the stamp And an identification method for judging the relationship between signatures.

However, the prior art as described above requires expensive spectroscopy equipment with high performance resolution, and it is necessary to use expensive spectroscopy equipment and spectroscopic spectra, and thus requires expert personnel to operate and interpret them. There was a problem needed.

Korean Patent Publication No. 10-2011-0126974

The present invention has been proposed to solve the above-described problem, and an object of the present invention is to provide a post-mortem post-mortem determination method and apparatus for determining a post-mortem relationship between a print and a text description in preparation for a photographed image.

In order to achieve the above object, the present invention provides a method for determining the imprint of a stamp and a document description character in a stamp printed with a stamp, wherein the stamp portion of the document including the stamp and characters is photographed to obtain a first image. Step ST-110 (first image acquisition step), separation of the phosphorus and character portions (ST-120, separation phase), and extraction of the phosphorescence portion after the separation phase to acquire a second image (ST- 130, a second image acquisition step), and a step (ST-140, the calculation step) of the amount of change of the pixel of the first image and the pixel of the second image is calculated.

In the above operation step (ST-140), the amount of change of the pixel of the portion where the phosphorous and the letters of the first image and the second image overlap, is calculated.

에 의하여 연산되며, 여기에서 Rb는 인영과 문자가 중첩된 영역에서 인주가 박리되면서 발생하는 인주 영역 픽셀의 변화 갯수이고, B는 인영과 문자가 겹친 부분의 전체 픽셀 갯수이며, P는 인주 영역 픽셀 갯수 변화량인 것을 특징으로 한다.In the above, the calculation step (ST-140)

Where Rb is the number of changes in the pixels of the padding area caused by the separation of the padding in the area where the imprint and character overlap, B is the total number of pixels of the overlapping area of the imprint and the letter, and P is the heading area pixel. It is characterized by the number of changes.

In the above, when P is less than 0.5, the seal is first stamped, and then the letter is described. If the value is equal to or greater than 0.5, it is determined that the seal is stamped after the letter is described.

On the other hand, the present invention is a device for stamping after stamping by the above method, comprising a frame, a camera mounted on the frame for photographing a document, fixing means mounted on the frame to fix the document, and fixing means. Provided is a device for stamping after stamping, which comprises peeling means for peeling a fixed document.

In the above, the peeling means is provided to be movable up and down on the frame, characterized in that the adhesive portion is detachably provided at the bottom.

In the above, a fixing means for fixing the document is provided on the bottom surface of the frame, the peeling means is made of a roll reciprocating while rotating the bottom surface of the frame, characterized in that the adhesive portion is detachably provided on the roll surface .

According to the stamping method after the printing of the present invention as described above and the apparatus therefor, it is possible to provide data for determining the relationship between printing and stamping without stamping the equipment of high price and high performance, anyone can easily follow It is effective to provide objective data that can be judged.

Figure 1 shows the steps of the stamping method after the seal stamp according to the present invention,
FIG. 2 is a diagram illustrating an operation step among the steps illustrated in FIG. 1;
3 and 4 schematically show the image area to explain the post stamping method according to the present invention,
5 schematically shows an apparatus for stamping a seal after stamping according to the present invention;
FIG. 6 is a plan view of some components for explaining the apparatus shown in FIG. 5;
7 is a modified example of the apparatus shown in FIG.
8 is an example of a first image in which a portion of the imprinted seal is photographed and stored;
9 is an example of a second image photographed and stored after peeling a portion of the stamped seal;
FIG. 10 is a first area separation image which is converted and stored after the first image shown in FIG.
FIG. 11 is a second region separation image which is converted and stored after the second image illustrated in FIG.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

Figure 1 shows the steps of the stamping process after the stamping according to the present invention, Figure 2 is shown to explain the calculation step of the steps shown in Figure 1, Figures 3 and 4 are printing according to the present invention To illustrate the post-test determination method, an image region is schematically illustrated, and FIG. 5 schematically shows an apparatus for a post-printing post-test determination method according to the present invention, and FIG. 6 illustrates the apparatus shown in FIG. 7 is a modified example of the apparatus shown in FIG. 5, FIG. 8 is an example of a first image in which a portion of the stamped seal is photographed and stored, and FIG. 9 is a portion of the stamped seal. FIG. 10 is an example of a second image photographed and stored after peeling, and FIG. 10 is a first region separation image which is converted and stored through a region separation step. FIG. 11 is illustrated in FIG. The second image is a second region separation image which is converted and stored through a region separation step.

As shown in FIG. 1, the printing method of stamping a stamp of imprint according to the present invention includes obtaining a first image by capturing a document including imprint and text (ST-110, a first image acquisition step), and imprinting the document. And the step of peeling the character part (ST-120, the peeling step), the step of photographing after the peeling step to obtain a second image (ST-130, the second image acquisition step), the pixels of the first image and the second And a step (ST-140, calculation step) of the amount of change of pixels in the image.

FIG. 5 illustrates an apparatus 100 for determining after stamping the seal of the present invention, and a hollow frame 110 opened in one direction so that an opening / closing door (not shown) is provided as shown in FIG. 5, and Peel off the camera 120 is installed in the frame 110 for photographing the document, the fixing means 150 provided in the frame 110 to fix the document (S), and the document fixed to the fixing means 150 It is made of a peeling means 140. The camera 120 and the peeling unit 140 are connected to a control unit (microcomputer) not shown, and the driving is controlled, and a calculation unit for calculating the first image and the second image photographed before and after the peeling is provided. Only the photographing and the storage of the first image and the second image may be performed in the apparatus 100 for post-mortem determination of the seal. The operation of the stored first image and the second image may be performed in a separate computer system. In FIG. 5, reference numeral 130 denotes illumination.

The peeling means 140 may be formed of a roller provided to be rollable along the bottom surface of the frame 110. Adhesive means 141 is removably wound around the surface of the roller. The peeling means 140 moves to the left in FIGS. 5 and 6 while rotating to peel the document while passing the document. In FIG. 6, reference numeral 143 illustrates a rotation shaft provided in the peeling means 140. The peeling means 140 is rotatably provided on the rotating shaft 143, and the driving means such as a motor is installed in the peeling means 140, and the power is applied to the peeling means 140 so that the bottom surface of the frame 110 rotates. Will move on. Both ends of the rotation shaft 143 are inserted into the groove having a length to enable linear movement. In FIG. 6, S1 represents an area where the seal is stamped.

7 shows a peeling means 140 of another form, wherein the peeling means 140 extends in the vertical direction in the frame 110 and the ball screw 144 is supported by the upper and lower ends so as to be rotatable, The ball screw 142 and the linear guide provided in parallel with the ball screw 144 to guide the vertical movement of the ball screw 142 and the ball screw 144 to move up and down with the rotation of the ball screw 144 on the ball screw 144. (Not shown). The ball screw 142 is connected to the table of the linear guide to move up and down by the rotation of the ball screw 144. The peeling means 140 is connected to the ball screw 142 by the connecting member 146 and moves up and down together with the ball screw 142. The ball screw 144 is connected to and driven by a motor (not shown) installed in the frame 110. The peeling means 140 is provided at the bottom detachable means 141.

The adhesive means 141 may be an adhesive tape or a transparent tape. The inventor experimented with 3M brand name "Scotch Magic Tape."

The user opens the door and fixes the document S for determination by the fixing means 150 provided on the bottom surface of the frame 110. When the door is operated after the door is closed, a portion of the document stamped by the camera 120 is first photographed and stored as a first image, and the peeling means 140 is peeled off the document. 120, the portion of the document stamped with the seal is photographed and stored as a second image. In the above, the photographing and peeling may be performed manually.

FIG. 8 is a first image in which a stamp of a document is stamped and stored by a camera, and as shown in the first image, a part of the stamp of the print and a part of the printed text overlap each other. Of course, some of the letters and written words overlap. In the specification of the present invention, both printed characters and handwritten characters are referred to as "characters", and both printed and handwritten characters are referred to as "substrate".

As shown in FIG. 8, the present invention provides data for determining the leading and trailing edges of a document having a portion where the characters and characters overlap. In FIG. 8, an orange portion is a portion stamped with phosphorus, a black portion is a character portion, and a white portion is a portion where a phosphorus and a character are not described.

FIG. 9 is a part corresponding to the first image shown in FIG. 8 and is a second image photographed after the peeling step (ST-120). In the peeling step (ST-120), it is also possible to peel off the entire phosphorus portion, or to peel off only a part of the phosphorus portion. When the adhesive tape such as the adhesive part 141 is bonded and then separated, the ink tape or ink based ink on the adhesive tape is buried in the adhesive tape together with the paper and separated from the document (paper).

If the seal is stamped after writing the character, the pads will be peeled off a lot and separated from the document. If the stamp is written after the seal is printed, the pad will not be separated much.

10 and 11 illustrate first and second region separation images that have undergone the region separation step ST-141 forming the calculation step ST-140.

Since the injuries are red lines, they can be separated from the histograms of the first and second images using the Otsu algorithm. When the R, G, and B values of each pixel are represented as histograms, the pixel area has an R value close to 255, the G value close to 0, and the B value close to 0, because the periphery region is a red system. To have. Therefore, when a pixel having an R value of 100 or more, a G value of 100 or less, and a B value of 100 or less is selected, the padding region of the red system is separated.

Since the character area is a black system, when the R, G, and B values of each pixel are represented by the histogram, the R value histogram has a value close to zero, the G value has a value close to zero, and the B value has a value close to zero. To have. Therefore, if the pixels with R, G, and B values of 100 or less are selected, the black character region is separated.

The present inventors conducted experiments on the above criteria for papers such as white, gray, etc. except for papers having special colors such as red, blue, green, etc., and it was confirmed that the separation of regions was made clearly. In the case of paper, ink pad, ink, etc. of a special color, it may be possible to allow the histogram of each region to be displayed on a display means such as an LCD (not shown) in the initial stage of the region separation operation, and then receive the region separation value.

Since the areas without stamping and no text are white lines, if the R, G, and B values of each pixel are represented by the histogram, each pixel has a value close to 255 in the R value histogram, and the G value is 255. It has a value close to, and the B value has a value close to 255. Therefore, if the R, G, and B values are all 100 or more pixels are selected, the white paper region is separated.

The pixels separated into the host area through the process described above have R values of 255, G values of 0, and B values of 0. Pixels separated from the character area have R, G, and B values of 0. Pixels separated into a paper region are stored as an image having a value of 2455 for R, G, and B values.

FIG. 10 is a first region separation image in which the first image of FIG. 8 is stored through the region separation step (ST-141), and FIG. Two-zone separation image.

In the same manner as described above, in the first and second region separation images of FIG. 10 and FIG. 11, in which regions are separated and stored, pixels in the host region having an R value of 255 are counted to calculate a change amount. In particular, it is determined before and after the stamp of the seal with the calculated value of the amount of change in the area where the seal as shown by the circle in FIG. 10 overlaps with the character.

In the first image and the second image capturing step, it is also possible to photograph only the region where the phosphorus overlaps with the character.

In Equation 1, Rb is the number of changes in the pixels of the padding area caused by the separation of the injuries in the area where the imprinting and characters overlap, B is the total number of pixels of the overlapping portion of the imprinting and letters, P is the number of pixels The amount of change.

As shown schematically in FIG. 3, the total pixels of the overlapped portion of the phosphorus and the character before peeling are 30, the number of pixels separated into the character area in the overlapped portion is 19, and the number of pixels separated into the padding area is 11 As shown in FIG. 4, if the number of pixels separated into character areas in the same region as in FIG. 3 after peeling is 26 and the number of pixels separated into padding areas is four, seven of the padding areas are caused by peeling. In the above equation, the column is separated, and in the above equation, the number of pixel changes Rb becomes 7 and the total overlapped area becomes 30.

Therefore, the amount of change P of the area of the pad area becomes 0.233.

The inventors of the present invention calculated the amount of change in the number of pixels in the area of the padding area P for the documents stamped and printed variously through the above process, and the amount of change in the number of the area in the area of the pixel area P is equal to or less than 0.5. If it has a large value, it is confirmed that the imprint is stamped after the character description, and that if the variation amount P of the area of the host area is less than 0.5, the imprint is stamped first and the character is written thereon.

On the other hand, since the stamped area is a blue system, when the R, G, and B values of each pixel are represented by the histogram, the R value histogram has a value close to 0, and the G value has a value close to 0, and the B value. Has a value close to 255. Therefore, when the B value is 100 or more, and the R value and the G value are 100 or less, the pixel may be separated into the stamp area of the blue system.

In the above description, the present invention has been described with reference to preferred embodiments, but the present invention is not necessarily limited thereto, and a person having ordinary skill in the art to which the present invention pertains does not depart from the technical spirit of the present invention. It will be readily appreciated that various substitutions, modifications and variations can be made.

ST-110: first image acquisition step ST-120: second image acquisition step
ST-130: Peeling Step

Claims (7)

In the method of determining the imprint of the imprint and the document description characters in the imprinted imprint, the imprint portion of the document including the imprint and the imprint is photographed to obtain a first image (ST-110, Acquiring the first image). Step), a step of peeling off the characters and the character part (ST-120, peeling step), a step of photographing the phosphorus part after the peeling step to obtain a second image (ST-130, a second image obtaining step), Comprising a step (ST-140, the calculation step) of the amount of change of the pixel of the first image and the pixel of the second image,
In the calculation step (ST-140)

The amount of change of the pixel of the area where the imprint and character of the first image and the second image overlap is calculated by Rb, where Rb is the number of change of the pixels of the pad region generated by the separation of the cap in the region where the imprint and character overlap. And B is the total number of pixels of the area where the imprint and character overlap, and P is the amount of change in the number of pixels of the pad area. delete delete  The method according to claim 1, wherein if P is less than 0.5, the seal is first stamped and then the letter is described. If the value is greater than or equal to 0.5, the seal is stamped after the letter is described. . Frame 110, the camera 120 is installed on the frame 110 to photograph the document, the fixing means 150 is installed on the frame 110 to fix the document, and fixed to the fixing means 150 Peeling means 140 for peeling the old document, the peeling means 140 and the camera 120 is connected to the control unit for controlling the driving of the peeling means 140 and the camera 120, connected to the control unit before and after photographing A calculation unit configured to perform calculations on the first image and the second image;
In the operation unit, an expression

The amount of change of the pixel of the area where the imprint and character of the first image and the second image overlap is calculated by Rb, where Rb is the number of change of the pixels of the pad region generated by the separation of the cap in the region where the imprint and character overlap. B is the total number of pixels of the area where the imprint and characters overlap, P is the amount of change in the number of pixels in the area of the padding imprinting apparatus 100 for post-printing judgment.  The method of claim 5, wherein the peeling means 140 is provided on the frame 110 so as to be movable up and down, and the adhesive portion 141 is detachably provided at the lower portion (100). 100).  The method of claim 5, wherein the fixing means 150 for fixing the document on the bottom surface of the frame 110 is provided, the peeling means 140 is made of a roll reciprocating while rotating the bottom surface of the frame 110 The apparatus 100 for stamping and stamping after stamping, wherein an adhesive part 141 is detachably provided on a roll surface.

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