KR20150044150A - System and method for transmitting document image - Google Patents

Abstract

The present invention relates to a document image transmission system and a method thereof. According to the present invention, the method includes: a step in which a first terminal acquires an image of an original document; a step in which the first terminal recognizes predetermined information from the acquired image of the original document; a step in which the first terminal receives an encryption key from an authentication server; a step in which the first terminal encrypts the predetermined information recognized from the original document with the received encryption key; a step in which the first terminal generates a QR code representing the encrypted information; a step in which the first terminal attaches the generated QR code to the acquired image of the original image; and a step in which the first terminal transmits the document image having the QR code as an attachment to a second terminal. The present invention enables a user to easily transmit a document image to another party through using a mobile terminal he or she carries while prevention forgery of the document. Also, the other party can easily and accurately check whether the document submitted from the user is forged or not.

Description

[0001] SYSTEM AND METHOD FOR TRANSMITTING DOCUMENT IMAGE [0002]

The present invention relates to a document image transmission system and method, and more particularly, to a document image transmission system and method capable of preventing transmission of a forged document image.

When subscribing or insuring a mobile communication service, a copy of the resident registration card is required to confirm the identity of the subscriber. To this end, there is an increasing number of cases in which images of resident IDs photographed with a camera are transmitted to the submission site using a smartphone that has been popularized recently.

However, since the image taken by the camera of the smartphone is taken at a level that replaces the function of the scanner, there is a problem that it can be easily forged or forged, and there is a high possibility that the forgery and falsification will increase more and more.

As a method for preventing forgery and falsification of a copy image of a document, Korean Patent Registration No. 10-0883390 discloses a method for scanning a document to provide an image document, at least one point system for recognizing an image document provided from each point system, Discloses a document electronicization system that includes a headquarters management system that manages data of an image document so that each point only allows the scanned image document to be sent to the head office at each point so that the outflow, And the like, and a technique for preventing the danger in advance.

However, the invention disclosed in Korean Patent No. 10-0883390 is only possible if a system constructed between a branch office and a head office is utilized, and a general user can conveniently use a smart phone that he / she always carries to prevent forgery and falsification of an original document There is no way to send it to the submitter.

Korean Patent No. 10-0883390

Therefore, a problem to be solved by the present invention is to provide a document image transmission system and method which can conveniently transmit a document image, such as a resident registration card, a driver's license, etc., to a destination using a portable terminal while preventing forgery and falsification of the document image.

According to an aspect of the present invention, there is provided a document image transmitting method including: (a) acquiring an image of an original document from a first terminal; (b) (C) receiving, by the first terminal, an encryption key from an authentication server, (d) transmitting, by the first terminal, the predetermined information recognized in the original document by the transmitted encryption key (E) generating, by the first terminal, the encrypted information in a QR code; (f) attaching the generated QR code to the obtained original document image by the first terminal; And (g) transmitting, by the first terminal, the document image to which the QR code is attached, to the second terminal.

The method includes the steps of: acquiring an image in a state in which the first terminal illuminates the original document; analyzing a pattern reflected from the image obtained in a state in which the first terminal illuminates the light, The method may further include determining whether the document is forged or falsified, and the steps (a) to (g) may be performed when the original document is a genuine document.

The encryption key may be transmitted from the authentication server to the first terminal together with a corresponding serial number.

The serial number may be a file name of a document included in the QR code or attached with the QR code in an unencrypted state.

The method comprising the steps of: receiving, by the second terminal, a serial number corresponding to a document image transmitted from the first terminal to the authentication server to transmit an encryption key; The method comprising the steps of: decrypting encrypted information included in a QR code attached to an image using a cryptographic key; and comparing the information extracted from the document image transmitted from the first terminal with the decrypted information, And a step of confirming whether or not it is possible.

The second terminal can provide the printing apparatus with the width and length values of the original document so that the image of the original document is printed on the printing paper at the actual size.

Wherein the step (a) comprises the steps of: displaying a guide line when displaying an image of an original document taken by the first terminal, and displaying, when the guide line is coincident with an outline of an image of the original document, And acquiring an image of the object.

According to an aspect of the present invention, there is provided a document image transmission system for acquiring an image of an original document, recognizing predetermined information from the acquired original document image, transmitting an encryption key from an authentication server, Encrypts the predetermined information recognized in the original document with the transmitted encryption key, generates the encrypted information as a QR code, attaches the generated QR code to the obtained original document image, and transmits the attached information to the destination And a first terminal.

The second terminal transmits the serial number corresponding to the document image transmitted from the first terminal to the authentication server to receive the encryption key and transmits the serial number corresponding to the document image transmitted from the first terminal to the authentication server, The information encrypted and included in the attached QR code is decrypted using the encryption key and information extracted from the document image transmitted from the first terminal is compared with the decrypted information to confirm whether or not forgery has occurred.

According to the present invention, there is an advantage that a document image can be conveniently transmitted to a destination using a portable terminal carried by the user while preventing forgery and falsification. The submitter also has the effect of easily and accurately confirming the forgery and falsification of the document image submitted by the user.

1 is a block diagram provided to illustrate a document image transmission system according to an embodiment of the present invention.
Fig. 2 is a block diagram showing the submitter terminal of Fig. 1 in more detail.
3 is a diagram illustrating an example in which a QR code is attached to a document image according to an embodiment of the present invention.
4 is a flowchart provided to explain the operation of the submitter terminal of FIG.
5 is a flowchart provided for explaining the operation of the destination terminal of FIG.
FIG. 6 is a view illustrating a screen when photographing a document image according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention.

1 is a block diagram provided to illustrate a document image transmission system according to an embodiment of the present invention.

Referring to FIG. 1, a document image transmission system according to the present invention may include a submitter terminal 100, an authentication server 200, and a destination terminal 300.

The submitter terminal 100 is an information communication terminal device used by a user who wants to transmit a document image obtained by photographing an original document with a camera to a submitter. In this case, the original document is issued by a public institution such as a resident registration card, a driver's license, etc., and may be a document confirming the identity of the submitter. Of course, it is possible to make documents that require confirmation of forgery and alteration at other places of presentation.

Particularly, the submitter terminal 100 according to the present invention records at least a part of the document image obtained by photographing the original document through a camera (not shown), such as a name, a resident registration number, an address, And encrypts the encrypted information. The encrypted information can be generated as a Quick Response Code (QR code), and then attached to the image of the resident registration card. A document scanning application for performing such a function may be installed in the submitter terminal 100. [ The document scanning application may be downloaded from an open market where an application such as an Android market, an app store, etc. is traded or may be an application installed in the submitter terminal 100 as a basic application.

According to the embodiment, the document scanning application according to the present invention may also include a function of generating a document image to which a QR code is attached and transmitting the document image according to the information (e.g., a telephone number or e-mail address) The document scanning application can access the authentication server 200 and receive the serial number and the encryption key.

The authentication server 200 delivers the serial number and the encryption key according to the request from the submitter terminal 100. When the serial number is transmitted from the presentation destination terminal 300, the authentication server 200 transmits a cryptographic key corresponding to the serial number.

The destination terminal 300 is an information communication terminal device used at a destination of receiving a document image from a submitter. The destination terminal 300 recognizes predetermined information included in the document image and compares the information included in the document image with the information included in the QR code to determine authenticity of the submitted document. A document decryption application for performing the above-described function may be installed in the presentation terminal 300 at the presentation terminal 300. According to the embodiment, the document scanning application and the document decryption application may be separately implemented or integrated into one.

The submitter terminal 100 and the submitter terminal 300 may be implemented as portable terminals such as a mobile phone, a smart phone, a tablet, and the like, and the presentation terminal 300 may be implemented as a desktop computer, a notebook computer, or the like.

The submitter terminal 100, the authentication server 200 and the presentation destination terminal 300 may be connected to each other via the communication network 400 to exchange various information and data. The communication network 400 may include a wired / wireless telephone network, a mobile communication network, and an Internet network.

The operation of the document submission system using the mobile terminal according to the embodiment of the present invention will be described in detail with reference to FIG.

Fig. 2 is a block diagram showing the submitter terminal of Fig. 1 in more detail.

2, the submitter terminal 100 includes a camera 110, a flash 115, a document recognition unit 120, a display unit 130, an input unit 135, a storage unit 137, a communication unit 140, An encryption unit 150, a QR code generation unit 160, and a transmission document generation unit 170.

The camera 110 captures an original document and acquires a document image.

The flash 115 performs a function of illuminating the original document at the time of photographing the camera. In the case of a resident registration card or a driver's license, when a light is shined, a specific pattern for judging forgiveness can be recognized as the light is reflected.

The forgery and falsification determining unit 117 analyzes the pattern reflected on the document image of the original document in a state in which the flash 115 is turned on to determine whether the document is forged or falsified.

The document recognizing unit 120 may extract text information from the document acquired by the camera 110 through an OCR (Optical Character Recognition) function.

The display unit 130 displays various information related to the operation of the submitter terminal 100 and can display a copy image of the document photographed by the camera 110 on the screen.

The input unit 135 receives a command from a user, and may be implemented as a touch screen or a button.

The storage unit 137 stores various information and data related to the operation of the submitter terminal 100. For example, a pattern for judging forgery or falsification of an original document may be stored.

The communication unit 140 can receive the serial number and the encryption key from the authentication server 200 through the communication network 400 and can transmit the document to be submitted to the destination terminal 300.

The encryption unit 150 encrypts predetermined information extracted from the document image acquired by the camera 110 using the encryption key transmitted from the authentication server 200. [

The QR code generation unit 160 performs a function of generating the encrypted information in the encryption unit 150 as a QR code. The serial number transmitted together with the encryption key may be included in the QR code without being encrypted, or may be transmitted to the submission destination terminal 300 separately from the document image to which the QR code is attached.

The transmission document generation unit 170 performs a function of turning off the flash from the camera 110 and attaching the QR code generated by the QR code generation unit 160 to a document copy image taken. Here, the attachment is such that the QR code is displayed in the area of the resident registration card which does not include the proper position of the document image such as the photograph, name, resident number, address, issue date, issuer, etc. . Of course, depending on the embodiment, as exemplified in FIG. 3 (b), QR codes may be placed side by side in a document image and combined into one image.

4 is a flowchart provided to explain the operation of the submitter terminal of FIG.

1, 2 and 4, when a submitter executes an application according to the present invention, a document image is obtained by photographing an original document to be submitted through the camera 110 in a state in which the flash 115 is turned on (S310).

Then, the forgery and falsification determining unit 117 analyzes the pattern reflected on the document image obtained in step S310 to determine whether the document is forged or not (S320).

If it is determined in step S310 that the photographed document is a forgery or falsification (S320-Y), the submitter terminal 100 may output a display indicating that the photographed document is forged on the screen and finish the document scanning operation (S330 ).

If it is determined in step S310 that the photographed document is not a forgery-proof original document (S320-N), the document image is acquired by photographing the original document to be submitted through the camera 110 in a state where the flash 115 is off S340).

Next, in step S340, information including text is extracted from the image obtained through the OCR (Optical Character Recognition) function (S350). The information extracted here may be information such as a name, a resident registration number, an address, an issue date, and a place of issuance in the case of a resident registration card.

Subsequently, the submitter terminal 100 can access the authentication server 200 and request the serial number and the encryption key to be transmitted (S360).

Next, the encryption unit 150 may encrypt all of the information extracted in step S350 or a part of information predetermined in advance through the encryption key (S370).

Thereafter, the QR code generator 160 may generate the encrypted information in the QR code in step S370 (S380). When generating the QR code in step S380, the serial number transmitted from the authentication server 200 in step S360 may be included in the QR code. However, the serial number is included in the QR code without being encrypted. Of course, depending on the embodiment, only the encrypted information may be generated by the QR code, and the serial number may be set to the file name of the image to which the QR code is attached later, or may be separately transmitted to the destination terminal 300.

Next, the transmission document generation unit 170 performs a function of attaching the QR code generated in step S380 to the document image of the submission object obtained by photographing the original document while the flash 115 is off (S390). The document image generated in step S390 may be stored in the storage unit 137 of the submitter terminal 100. [

Finally, the submitter terminal 100 transmits the document image with the QR code attached thereto to the terminal 300 in step S390 (S395).

5 is a flowchart provided for explaining the operation of the destination terminal of FIG.

1, 2 and 5, when the presentation destination terminal 300 receives the document image with the QR code attached thereto from the submitter terminal 100, the presentation destination terminal 300 connects to the authentication server 200 and receives The serial number of the document image is transmitted and the corresponding encryption key is transmitted (S410).

Subsequently, the terminal 300 decrypts the encrypted information included in the QR code attached to the document image using the encryption key transmitted from the authentication server 200 (S420).

In step S430, the information extracted from the received document image is compared with the decrypted information in step S420 to check whether the document transmitted from the submitter terminal 100 is forged or not (S430).

The submitter terminal 300 can display the forgery and falsification result confirmed in step S430 on the screen in step S440. According to the embodiment, the submitter terminal 300 transmits the document image to the print device And can be outputted to the printing paper. In particular, in the document decryption application according to the present invention, when a document image such as a resident registration card or a driver's license is printed on a print sheet, it is possible to print an image of the original document in an aspect ratio.

Next, referring to FIG. 6, a process of photographing an original document with the camera 110 and acquiring a document image in the submitter terminal 100 will be described in more detail.

FIG. 6 is a view illustrating a screen when photographing a document image according to the present invention.

Referring to FIG. 6, the document scanning application may cause the guide line 1 to be displayed on the screen when the camera 110 displays the image of the original document on the screen of the display unit 130. When the user adjusts the distance between the submitter terminal 100 and the original document so that the outline 2 of the image taken of the original document matches the guide line 1, the document scanning application automatically controls the camera 110 A document image can be obtained. Thus, it is possible to prevent the shaking that may occur when the user selects the photographing button by hand.

Embodiments of the present invention include a computer-readable medium having program instructions for performing various computer-implemented operations. This medium records a program for executing the document submission method using the above-described portable terminal. The medium may include program instructions, data files, data structures, etc., alone or in combination. Examples of such media include magnetic media such as hard disks, floppy disks and magnetic tape, optical recording media such as CD and DVD, programmed instructions such as floptical disk and magneto-optical media, ROM, RAM, And a hardware device configured to store and execute the program. Or such medium may be a transmission medium, such as optical or metal lines, waveguides, etc., including a carrier wave that transmits a signal specifying a program command, data structure, or the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of the right.

Claims (10)

(a) acquiring an image of an original document by a first terminal,
(b) recognizing predetermined information from the acquired original document image by the first terminal,
(c) receiving the encryption key from the authentication server by the first terminal,
(d) encrypting, by the first terminal, predetermined information recognized in the original document by the transmitted encryption key,
(e) the first terminal generating the encrypted information in a QR code,
(f) attaching the generated QR code to the obtained original document image by the first terminal, and
(g) transmitting, by the first terminal, the document image to which the QR code is attached to the second terminal
And transmitting the document image. The method of claim 1,
The first terminal acquiring an image with the original document illuminated, and
Further comprising the step of determining whether the original document is forged or falsified by analyzing a pattern reflected from the image obtained when the first terminal illuminates the light,
Wherein the steps (a) to (g) are performed when the original document is a genuine document. The method of claim 1,
Wherein the encryption key is transmitted from the authentication server to the first terminal together with a corresponding serial number. 4. The method of claim 3,
Wherein the serial number is a file name of a document included in the QR code in an unencrypted state or attached with the QR code. 5. The method of claim 4,
Receiving, by the second terminal, the serial number corresponding to the document image transmitted from the first terminal to the authentication server to receive the encryption key;
The second terminal decrypts the encrypted information included in the QR code attached to the document image transmitted from the first terminal using the cryptographic key, and
Comparing the extracted information from the document image transmitted from the first terminal with the decrypted information and verifying whether the second terminal forged or not
Further comprising: The method of claim 5,
And the second terminal provides the printing apparatus with the width-to-length value of the original document so that the image of the original document is printed on the printing paper at an actual size. The method of claim 1,
The step (a)
Displaying a guide line when displaying an image of an original document taken by the first terminal, and
Acquiring an image of the original document when the outline of the image of the original document is coincident with the guide line
And transmitting the document image. Receiving an image of an original document, recognizing predetermined information from the obtained original document image, receiving an encryption key from an authentication server, encrypting predetermined information recognized in the original document with the transmitted encryption key, A first terminal for generating encrypted information by a QR code, attaching the generated QR code to the obtained original document image,
The document image transmission system comprising: 9. The method of claim 8,
Wherein the encryption key is transmitted from the authentication server to the first terminal together with a corresponding serial number. 9. The method of claim 8,
The destination is the second terminal,
The second terminal,
A serial number corresponding to a document image transmitted from the first terminal is transmitted to the authentication server to receive an encryption key, and information encrypted and contained in a QR code attached to a document image transmitted from the first terminal is transmitted to the authentication server, And comparing the information extracted from the document image transmitted from the first terminal with the decrypted information to check whether the document is forged or not.

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