KR101846342B1 - Computer readable medium for recording program performing method of managing electronic documents and system for managing electronic documents - Google Patents

Abstract

According to the present invention, in a recording medium storing a program for executing an electronic document management method in a computer, the electronic document management method includes the steps of: extracting characters of a plurality of character regions included in an electronic document; analyzing a mapping factor of the characters extracted from the plurality of character regions; generating the plurality of character regions as a structured field that constitutes the electronic document based on the analyzed mapping factor; and mapping and storing the extracted characters in the structured field which is generated. Accordingly, the present invention can manage the electronic document by dynamically generating the structured field.

Description

[0001] The present invention relates to a recording medium and an electronic document management system storing a program for causing a computer to execute an electronic document management method,

The present invention relates to a recording medium storing a program for executing an electronic document management method on a computer, a program stored on a medium for executing the electronic document management method on a computer, and an electronic document management system.

In the case of a document obtained as an image of a paper document or a scanned document, a special region is designated and a portion thereof is extracted and stored by executing an optical character recognition program. However, since the recognition rate is low, it is often the case that only simple and frequent characters such as Arabic numerals are recognized.

In addition to the low recognition rate of characters, it is inconvenient to select all the areas to be recognized according to the document, manually select the area, and then map the extracted document to the area of the actual electronic document there was.

Korean Patent Publication No. 10-2013-0080745 (published on July 15, 2013)

The present invention relates to a dynamic electronic device for mapping a character extracted from a character region to a structured field after generating a structured field by analyzing a mapping factor capable of grasping a structure in a character region including a character in an electronic document, There is provided a recording medium and an electronic document management system storing a program for causing a computer to execute a document management method.

According to the present invention, electronic documents having structured fields specific to a plurality of tenants are separately managed based on a cloud, thereby mapping an electronic document to existing analyzed structured fields for an electronic document having a structure frequently used by a plurality of tenants The present invention provides a recording medium and an electronic document management system storing a program for causing a computer to execute an electronic document management method.

There is provided a recording medium storing a program for executing an electronic document management method according to an embodiment of the present invention, the method comprising the steps of: extracting characters of a plurality of character regions included in an electronic document; Analyzing a mapping factor of a character extracted from a plurality of character regions, and generating the plurality of character regions as a structured field configuring an electronic document based on the analyzed mapping factor And mapping and storing the extracted characters in the generated structured field.

In one embodiment, the step of analyzing the mapping factor may include comparing the text length of the character, the size of the character, the thickness of the character, the slope of the character, the length between the lines of the character, A positional relationship with the character area, and a color of the character.

In one embodiment, the step of generating the structured field may include the steps of: calculating a mapping score of each character region by assigning a predetermined weight to the mapping factor; and calculating, based on the calculated mapping score, And generating a structured field.

In one embodiment, the electronic document management method may further include associating and storing mapping fields of the structured field and the mapped character region.

In one embodiment, the electronic document management method includes: managing an electronic document structure template by associating the structured field with a mapping factor for each tenant; and managing the received electronic document structure template for tenants of the received electronic document, The method may further include mapping the electronic document.

According to an embodiment, generating the structured field may include extracting table of contents information of the electronic document, and comparing and verifying the extracted table of contents information with the structured field.

The electronic document management method for executing the recording medium storing the program for execution on the computer according to the present invention further includes the step of displaying the electronic document through the display means and providing an interface for selecting the plurality of character areas can do.

The step of mapping and storing the extracted characters in the generated structured field may include displaying the result of mapping the structured field and the extracted character through a display means, And receiving feedback on the mapping result.

The present invention includes a program stored in a medium for causing the computer to execute the above-described electronic document management method.

An electronic document management system according to an embodiment of the present invention includes a character extracting unit for extracting a character of a plurality of character regions included in an electronic document, and a character analyzing unit for analyzing a mapping factor of characters extracted from the plurality of character regions A document analyzing unit for analyzing the character string, a document structuring unit for generating the plurality of character regions as a structured field constituting an electronic document based on the analyzed mapping factors, And a document mapping unit for mapping and storing.

According to the embodiment, the mapping parameter analyzed by the document analyzing unit may include at least one of a text length of a character, a size of a character, a thickness of a character, a slope of a character, a length of a line between characters, a position of the character region in the electronic document, A positional relationship with a character area, and a color of a character.

In one embodiment, the document structuring unit may assign a predetermined weight to the mapping factor to calculate a mapping score of each character region, and may generate the structured field sequentially based on the calculated mapping score . For example, the document structuring unit may extract the table of contents information of the electronic document and compare the extracted table of contents information with the structured field.

The electronic document management system according to an embodiment of the present invention may further include an interface unit for displaying the electronic document to select the plurality of character regions, or displaying an interface for receiving the feedback by receiving the mapping result.

An electronic document management system according to an exemplary embodiment of the present invention may further include a database for managing an electronic document structure template by associating and storing the mapping field of the character area mapped with the structured field, The electronic document can be mapped based on the electronic document structure template.

According to the present invention, it is possible to solve the inconvenience that the user recognizes the structure of the electronic document and maps and manages the extracted character in the process of recognizing and storing the character in the electronic document, An electronic document management method for managing an electronic document by generating a dynamically structured field, a recording medium storing a program for executing an electronic document management method on a computer, and an electronic document management method for executing an electronic document management method on a computer A stored program, and an electronic document management system.

1 is a flowchart illustrating an electronic document management method according to an embodiment of the present invention.
2 is a flowchart illustrating an electronic document management method according to an embodiment of the present invention.
3 is an example of a display screen that can be provided to a user through the electronic document management method and the electronic document management system according to an embodiment of the present invention.
4 is a screen for displaying a character area of an electronic document according to an embodiment of the present invention.
5 is a block diagram illustrating an electronic document management system according to an embodiment of the present invention.

Various embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In this document, the same reference numerals are used for the same constituent elements in the drawings, and redundant explanations for the same constituent elements are omitted.

For the various embodiments of the invention disclosed herein, specific structural and functional descriptions are set forth for the purpose of describing an embodiment of the invention only, and various embodiments of the invention may be practiced in various forms And should not be construed as limited to the embodiments described herein.

Expressions such as " first, "second," first, "or" second, " as used in various embodiments, Not limited. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be named as the first component.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the other embodiments. The singular expressions may include plural expressions unless the context clearly dictates otherwise.

All terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art. Commonly used predefined terms may be interpreted to have the same or similar meaning as the contextual meanings of the related art and are not to be construed as ideal or overly formal in meaning unless expressly defined in this document . In some cases, the terms defined in this document can not be construed to exclude embodiments of the present invention.

1 is a flowchart illustrating an electronic document management method according to an embodiment of the present invention. The present invention includes a program stored in a medium for executing an electronic document management method according to an embodiment of the present invention and includes a program for causing a computer to execute an electronic document management method according to an embodiment of the present invention And a recording medium readable by the computer.

Referring to FIG. 1, an electronic document management method extracts characters of a plurality of character regions included in an electronic document (step S110). An electronic document may be obtained from an optical image acquiring means included in an apparatus having a medium, or may be acquired from an external apparatus and transmitted in a wired or wireless communication manner to an apparatus having the medium. According to an embodiment, an electronic document can be delivered to a cloud-based electronic document management system in a wired or wireless communication manner.

Characters can be extracted by using the OCR engine in a plurality of character regions. However, according to the electronic document management method according to an embodiment of the present invention, not only character text but also mapping factors of extracted characters can be analyzed (Step S120). The step of analyzing the mapping factor may include analyzing a mapping parameter including a text length of a character, a size of a character, a thickness of a character, a slope of a character, a length of a line between characters, a position in the electronic document of the character region, And analyzing at least one of the hues of the image. Depending on the embodiment, the mapping factors may be generated through a combination of these.

For example, a mapping factor may correspond to a feature commonly referred to as a 'style' when using a word processing program. The method of managing an electronic document according to the present invention is a method for managing an electronic document based on a structure hierarchy according to the style of characters in an electronic document, Can be automatically structured to create a structured field.

Based on the analyzed mapping factors, a plurality of character areas are generated as a structured field configuring the electronic document (step S130). According to the embodiment, when recognizing the inter-line length of text, a character area having a long inter-line length can be grasped as a higher structure than a character area having a short inter-line length. If the thickness of the character is thick, it can be judged that the importance is higher than other character regions. If the character string is short and the paragraph is divided next, it is likely to correspond to the title.

The mapping score of each character region can be calculated by assigning a predetermined weight to each mapping factor according to the characteristics of the mapping factor. If the mapping score is high, it is judged to correspond to a higher structure. The lower the mapping score, the lower it corresponds to the sub structure. If the upper structure and the sub structure are formed in the adjacent character region, the sub structure may be included in the upper structure . It is determined that character areas having the same mapping score belong to the same hierarchy.

According to the embodiment, there is a possibility that the significance is high due to giving a negative weight to the mapping factor of the inter-line length of characters, giving a positive weight to the thickness of the character, and assigning a negative weight to the length of the character string Positive weights are assigned to high mapping factors, and negative weights can be given to mapping factors that are likely to have low importance as the value increases. However, this is an example, and the weights may be different according to the embodiment. Further, even for positive weights and negative weights, a negative weight having a different absolute value for the inter-line length of the character and the length of the character may be given .

According to the embodiment, when the document is positioned at the upper part according to the position in the electronic document, it is likely that the document corresponds to the upper layer as shown in the title. According to the embodiment, the electronic document may include the table of contents information. In this case, it can be verified that the structured field normally determines the table of contents and its contents. The reliability of the structured field can be further improved by comparing and verifying the extracted table of contents information with the structured field.

After the structured field is created, the extracted characters are mapped and stored in the corresponding field (step S140). Through this process, it is not necessary to manually map the extracted character to the structure, and the dynamically structured field is generated for various electronic documents, thereby storing and managing the electronic document.

However, when a plurality of tenants manage an electronic document through the cloud, the same tenant can frequently electronically manage the electronic document of the same format. Also, when many tenants generate and manage various types of electronic documents as structured fields, electronic documents having similar formats may exist.

Accordingly, the process of determining whether the received electronic document is matched to the already analyzed structured field is performed by analyzing a mapping factor for each character region every time an electronic document is received, Can be efficient.

2 is a flowchart illustrating an electronic document management method according to an embodiment of the present invention. In FIG. 2, the same steps as those in FIG. 1 are denoted by the same reference numerals, and a detailed description thereof will be omitted.

Referring to FIG. 2, after the extracted characters are mapped and stored in the structured field (step S140), mapping factors of the structured field and the mapped character area may be stored in association with each other (step S150). Such stored data may be referred to as an electronic document structure template. In the electronic document management system according to an embodiment of the present invention, an electronic document structure template can be managed for each tenant. However, according to the embodiment, a plurality of tenants can be grouped and managed according to the characteristics of the tenants, such as managing tenants having a similar possibility of using an electronic document having a similar structure, for example, tenants having similar business types, individuals and companies.

When various electronic document structure templates are managed, an electronic document is received and characters of a character area are extracted therefrom (step S110), and an electronic document can be mapped to an electronic document structure template for a tenant of the received electronic document ( Step S113). The step of classifying the mapping parameter of the received electronic document by a step similar to a kind of simulation, maps the received electronic document to the already generated electronic document structure template without generating the structured field, and judges whether the mapping is valid S115).

Whether or not the mapping is valid can be determined by calculating the matching score within the electronic document management system and judging whether the mapping is valid when the matching score is equal to or greater than a predetermined value. For example, a matching score can be calculated based on whether character areas corresponding to all the fields of the electronic document structure template exist, whether they correspond to a character string range of a character generally included in each field, and the like.

In another embodiment, it is possible to determine whether the mapping to the electronic document structure template is valid by outputting the result of mapping the electronic document to the electronic document structure template, and receiving an input from the user as to whether the mapping is appropriate. Here, the mapping result displayed to the user may be a mapping result having the highest matching rate when an electronic document is mapped to a plurality of electronic document structure templates.

If it is judged that it is valid to be mapped to the electronic document structure template (step S115, Yes), the extracted character is mapped and stored in the structured field of the electronic document structure template.

If it is not valid to map to the electronic document structure template, that is, if it is determined that the electronic document is not an electronic document having the same structure as the previously analyzed structured field (step S115, No) (Step S120), generates a plurality of character areas as structured fields based on the analyzed mapping factors (step S130), maps the extracted characters to the generated structured field (Step S140).

If the electronic document having the same structure is received next after completing the step of associating and storing the mapping field of the mapped character area and the structured field thus analyzed with respect to the newly received electronic document (step S150), the document is analyzed It is possible to reduce the time required for the operation.

According to an embodiment of the present invention, an electronic document management method according to an embodiment of the present invention may further include the step of displaying an electronic document through display means and providing an interface for selecting a plurality of character regions. And displaying the result of mapping the structured field and the extracted character after providing the interface through the display means. The step of displaying through the display means can be performed using the graphic processing device and the communication device in the electronic document management system.

The user can confirm the result of the conversion of the electronic document and provide feedback on the result. The feedback provided by the user may include whether the electronic document is converted and the mapped result is appropriate, and feedback that corrects the mapped result.

3 is an example of a display screen that can be provided to a user through the electronic document management method and the electronic document management system according to an embodiment of the present invention.

Referring to FIG. 3, an image screen of an electronic document is displayed on the left side of the screen. The electronic document is divided into a plurality of character areas, and the lengths of the vertical axes of the plurality of character areas, that is, the lengths of the inter-character spaces of the characters are different from each other.

It can be confirmed that the character size and thickness are located at the uppermost positions of the electronic document of the first character area 310 and are larger than those of the character areas 320, 330, and 340 having different sizes. Therefore, the first character region 310 is most likely to correspond to the title, and belongs to the uppermost layer on the mapping score.

The second character area 320 is located immediately below the first character area 310 and has the same character color. The character size of the second character area 320 is smaller than the character size of the third character area 330, but is not limited to the subtitle of the title of the electronic document or the field of the author of the electronic document based on the position of the character area, Can be grasped.

The third character region 330 and the fourth character region 340 are located below the first and second character regions 320 and 320 and have different text colors. However, since the character size and the thickness of the third character area 330 are larger than the character size and the character thickness of the fourth character area 340, the third character area 330 is higher than the fourth character area 340 It can be understood as belonging to the hierarchy. In FIG. 3, the vertical axis length of a character string can be understood as a concept similar to the size of a character.

In this way, after analyzing the mapping factor and calculating the mapping score, a structured field is generated and the content of the corresponding character area is mapped to the structured field. On the right side of FIG. 3, a field dynamic mapping area 350 may be displayed to display the mapping factor of the structured field and corresponding contents.

The user can determine whether the electronic document is normally mapped by referring to the field dynamic mapping area 350 and edit the mapping contents.

4 is a screen for displaying a character area of an electronic document according to an embodiment of the present invention.

Referring to FIG. 4, it can be seen that the character area (green) and the drawing area (red) are distinguished from each other in the obtained electronic document. According to an embodiment of the present invention, in the electronic document management method and the electronic document management system according to the embodiment of the present invention, the character areas are displayed through the interface, thereby allowing the user to directly select or edit the selected character area automatically. In the case of analyzing the electronic document through the electronic document structure template as in the embodiment described with reference to FIG. 2, since the position information of the area corresponding to a specific field is stored in the electronic document, Can be selected and analyzed.

5 is a block diagram illustrating an electronic document management system according to an embodiment of the present invention. The electronic document management system of FIG. 5 may perform the electronic document management method described above, and may be performed according to a program stored in the medium to execute the electronic document management method in the computer according to an embodiment of the present invention, And a computer-readable recording medium storing a program for causing a computer to execute the electronic document management method according to an embodiment. It may also comprise an optical image acquiring means for acquiring an electronic document according to an embodiment.

5, an electronic document management system 50 according to an embodiment of the present invention includes a character extracting unit 510, a document analyzing unit 520, a document structuring unit 530, and a document mapping unit 540, . ≪ / RTI >

The document analyzer 520 analyzes the text length of the character, the size of the character, the thickness of the character, the slope of the character, the length of the space between the characters, the position of the character area in the electronic document, Lt; / RTI > can be analyzed. These properties are called mapping factors.

The document structuring unit 530 assigns predetermined weights to the mapping factors analyzed by the document analyzing unit 520 to calculate a mapping score of each character region and sequentially outputs the structured field to the mapping score calculating unit 520 based on the calculated mapping score Can be generated. The method of calculating the mapping score with respect to the character area is as described above.

According to an embodiment, the document structuring unit 530 may extract the table of contents information included in the electronic document and compare the extracted table of contents information with the structured field to verify the reliability of the structured field.

The document mapping unit 540 maps and extracts the extracted characters in the structured field. The electronic document structure template that associates the processing contents of the structured electronic document and the mapping field of the mapped character area with the structured field, May be stored in the storage unit 550 and managed.

The database 550 can manage processing contents of electronic documents and electronic document structure templates for a plurality of tenants connected to the cloud-based electronic document management system.

As the electronic document structure template is managed in the database 550, the document mapping unit 540 may apply the newly received electronic document to the stored electronic document structure template to determine suitability.

The electronic document management system according to an embodiment of the present invention may further include an interface unit 560 according to an embodiment. The interface unit 560 may perform a graphic processing function and a communication function.

The interface unit 560 may be used for displaying a text area of an electronic document or for selecting a character area of an electronic document obtained for displaying a result mapped to a structured field to a user, And transfers the processed contents of the electronic document to the user through wired / wireless communication so that the processed contents of the electronic document can be displayed through the display means of the user.

As described above, according to the electronic document management method and the electronic document management system according to various embodiments of the present invention, it is possible to analyze the style of the text area of the electronic document and analyze the electronic document as a structured field. Accordingly, when the user optically obtains the electronic document by OCR recognition and stores it, it is possible to eliminate the inconvenience of manually linking and managing fields of each area.

In addition, by managing the various analyzed electronic documents, when receiving the electronic document in a format similar to that previously analyzed, it is possible to reduce the time required for analyzing the electronic document by managing the electronic document in the same manner, .

The present invention has been described in detail with reference to the preferred embodiments shown in the drawings. These embodiments are to be considered as illustrative rather than limiting, and should be considered in an illustrative rather than a restrictive sense. The true scope of protection of the present invention should be determined by the technical idea of the appended claims rather than the above description. Although specific terms are used herein, they are used for the purpose of describing the concept of the present invention only and are not used to limit the scope of the present invention described in the claims or the claims. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It is to be understood that the equivalents include all components that are invented in order to perform the same function irrespective of the currently known equivalents as well as the equivalents to be developed in the future.

50: Electronic document management system
510:
520: Document analysis unit
530: document structuring section
540: Document mapping unit
550: Database
560:

Claims (15)

Extracting characters of a plurality of character regions included in the electronic document;
Analyzing at least one mapping factor of characters extracted from the plurality of character regions;
Calculating a mapping score of each character region by assigning a predetermined weight to at least one of the analyzed mapping factors;
Generating a structured field mapped to the plurality of character regions sequentially based on the calculated mapping score; And
Mapping and storing the extracted character in the generated structured field,
And the structured field constitutes the electronic document. A recording medium storing a program for causing a computer to execute an electronic document management method. The method according to claim 1,
Wherein analyzing the at least one mapping factor comprises:
At least one of a text length of a character, a size of a character, a thickness of a character, a slope of a character, an inter-line length of a character, a position in the electronic document of the character region, a positional relationship with another character region, And a program for causing the computer to execute the electronic document management method. delete The method according to claim 1,
And associating at least one mapping parameter of the structured field and a character area mapped to the structured field with each other, and storing the associated mapping parameter. 5. The method of claim 4,
Managing an electronic document structure template by associating the structured field with a mapping factor for each user; And
Further comprising the step of mapping the received electronic document to an electronic document structure template for a user of the received electronic document. The method according to claim 1,
Wherein generating the structured field comprises:
Extracting table of contents information of the electronic document; And
And comparing and verifying the extracted table of contents information and the structured field, and verifying the extracted table information and the structured field. The method according to claim 1,
Further comprising the step of displaying the electronic document through a display means and providing an interface for selecting the plurality of character regions. A recording medium storing a program for causing a computer to execute an electronic document management method. The method according to claim 1,
Mapping and storing the extracted characters in the generated structured field,
Displaying the result of mapping the structured field and the extracted character through a display means; And
And receiving feedback from the user on the mapping result. A recording medium storing a program for performing an electronic document management method. A program stored in a medium for executing a method of managing an electronic document according to any one of claims 1, 2, and 4 to 8 in a computer. A character extracting unit for extracting characters of a plurality of character regions included in the electronic document;
A document analyzer for analyzing at least one mapping factor of characters extracted from the plurality of character regions;
A mapping score of each character region is calculated by assigning a predetermined weight to the analyzed at least one mapping factor, and a structured field mapped to the plurality of character regions sequentially based on the calculated mapping score A document structuring unit for generating a document; And
And a document mapping unit for mapping the extracted characters to the generated structured field and storing the mapped characters,
Wherein the structured field constitutes the electronic document. 11. The method of claim 10,
Wherein the at least one mapping factor analyzed by the document analysis unit comprises:
At least one of a text length of a character, a size of a character, a thickness of a character, a slope of a character, a length of a line between characters, a position in the electronic document of the character region, a positional relationship with another character region, Electronic document management system. delete 11. The method of claim 10,
The document structuring unit,
Extracts table of contents information of the electronic document, and compares and verifies the extracted table of contents information with the structured field. 11. The method of claim 10,
Further comprising an interface unit for displaying the electronic document to select the plurality of character areas, or an interface for providing an interface for receiving feedback by displaying the mapping result. 11. The method of claim 10,
Further comprising a database for managing an electronic document structure template by associating and storing at least one mapping factor of the structured field and a character area mapped thereto,
And the document mapping unit maps the electronic document based on the electronic document structure template.

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