CN111241795A - Business form extraction method and device - Google Patents
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- CN111241795A CN111241795A CN202010012072.3A CN202010012072A CN111241795A CN 111241795 A CN111241795 A CN 111241795A CN 202010012072 A CN202010012072 A CN 202010012072A CN 111241795 A CN111241795 A CN 111241795A
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Abstract
The invention provides a method and a device for extracting a business form, wherein after the business form is obtained, whether the business form contains a header or not is judged; if yes, extracting a service form containing the header characteristics according to the pre-configured header characteristics matched with the header; wherein the header feature comprises at least one field in the header. In the method, the header of the service form of the same type is considered to usually contain the same field or fields, and at least one field can be selected from the common fields for fuzzy matching, so that a plurality of service forms of the same type can be simultaneously extracted, and the flexibility and the universality of extracting the service forms are improved.
Description
Technical Field
The invention relates to the technical field of form processing, in particular to a method and a device for extracting a business form.
Background
In the related technology, when a CAD drawing service form needs to be extracted, the form head features of the service form are mainly configured in full words for identification and extraction, in the mode, as long as the form heads of the CAD drawing service form are different, the corresponding form head features need to be manually reconfigured, the corresponding service form can be extracted, the flexibility and the universality of the extracted service form are poor, and if the fixedly configured form head features are inaccurate, the service form cannot be extracted, so that the fault tolerance rate is low.
Disclosure of Invention
The invention aims to provide a method and a device for extracting a service form, which are used for improving the flexibility and the universality of extracting the service form.
The invention provides a method for extracting a business form, which comprises the following steps: acquiring a drawing containing a business form; judging whether the business form contains a header or not; if the business form contains the header, extracting the business form containing the header characteristics from the drawing according to the pre-configured header characteristics matched with the header; wherein the header characteristics include at least one field in the header.
Further, the more the fields included in the header feature, the higher the priority of the header feature.
Further, the method further comprises: if the business form does not contain the form header and meets the preset limiting conditions, extracting the business form containing the form content characteristics from the drawing according to the preset form content characteristics matched with the business form content; wherein the limiting condition is used for limiting the maximum value of the number of rows and/or the maximum value of the number of columns of the business form; the form content feature comprises at least one field in the business form content.
Further, the more fields included in the form content feature, the higher the priority of the form content feature.
Further, the service form includes: covers, catalogs, materials sheets, or frames.
The invention provides a business form extraction device, which comprises: the acquisition module is used for acquiring a drawing containing a business form; the judging module is used for judging whether the business form contains a form header or not; the first extraction module is used for extracting the business form containing the header characteristics from the drawing according to the pre-configured header characteristics matched with the header if the business form contains the header; wherein the header characteristics include at least one field in the header.
Further, the more the fields included in the header feature, the higher the priority of the header feature.
Further, the apparatus further comprises: the second extraction module is used for extracting the business form containing the form content characteristics from the drawing according to the pre-configured form content characteristics matched with the business form content if the business form does not contain the form header and meets the preset limiting conditions; wherein the limiting condition is used for limiting the maximum value of the number of rows and/or the maximum value of the number of columns of the business form; the form content feature comprises at least one field in the business form content.
Further, the more fields included in the form content feature, the higher the priority of the form content feature.
Further, the service form includes: covers, catalogs, materials sheets, or frames.
According to the method and the device for extracting the business form, provided by the invention, after the business form is obtained, whether the business form contains a form header is judged; if yes, extracting a service form containing the header characteristics according to the pre-configured header characteristics matched with the header; wherein the header feature comprises at least one field in the header. In the method, the header of the service form of the same type is considered to usually contain the same field or fields, and at least one field can be selected from the common fields for fuzzy matching, so that a plurality of service forms of the same type can be simultaneously extracted, and the flexibility and the universality of extracting the service forms are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a method for extracting a service form according to an embodiment of the present invention;
fig. 2 is a flowchart of another service form extraction method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a service form extracting apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another service form extraction apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The traditional CAD drawing business form extraction method has the advantages that the automatic extraction of a computer is already preliminarily realized, but the extraction method is single, the form head characteristics of the business form are configured through fixed full characters, so that the configuration needs to be carried out by referring to each type of business form of each drawing, the business forms with different form heads need to be reconfigured when meeting, the flexibility and the universality of the extracted business form are poor, the form head characteristics of the fixed full character configuration are completely consistent with the form head of the business form, the corresponding business form can be matched, and the fault-tolerant rate is low; the identification of the business form of each drawing needs manual pre-configuration of the header characteristics, namely, the manual configuration is needed once when one form is identified, and unless the headers of the two forms are completely the same, the manual configuration is needed once as long as the headers are slightly different, so that the automation cannot be realized, and the business form without the header cannot be identified.
Based on this, the embodiment of the invention provides a method and a device for extracting a business form, and the technology can be applied to the extraction of various business forms.
In order to facilitate understanding of the embodiment, a method for extracting a service form disclosed by the embodiment of the invention is first described in detail; as shown in fig. 1, the method comprises the steps of:
and step S102, acquiring a drawing containing a business form.
The service forms are usually service forms in CAD drawings, or service forms in drawings drawn by other drawing software, and the service forms may be catalog forms, material sheets, and the like, that is, the drawings may contain multiple types of service forms, the number of each type of service form may be multiple, and when a service form of a specific type needs to be extracted, the drawing containing the service form needs to be obtained first.
Step S104, judging whether the business form contains a header.
The header is usually set at the beginning of the business form and is used for classifying the nature of some problems; for example, in a material table, the meter head generally includes: serial number, name, specification or number, etc.; some service forms contain a header, and some service forms do not contain a header, so after a drawing containing a service form is obtained, it is necessary to first determine whether the service form contains a header.
Step S106, if the business form contains the header, extracting the business form containing the header characteristics from the drawing according to the pre-configured header characteristics matched with the header; wherein the header feature comprises at least one field in the header.
The header feature usually contains at least one field in the header of the service form to be extracted, and the header feature is usually configured in advance by service form demand personnel; extracting corresponding service characteristics as configuration aiming at the different types of service forms, wherein the service characteristics can comprise header characteristics and form content characteristics; in an industry, the approximate style of different types of business forms is usually determined comparatively, that is, whether the type of business form contains a header or not, if so, which information is usually contained in the header of the type of business form before configuring the header features can be confirmed according to experience; for example, taking a material table as an example, the header characteristics of the material table can be obtained from the header field of the material table, and the form content characteristics can be obtained from the content of the material table; the material table typically includes in the header: information such as serial number, name, specification, unit and quantity, the header characteristics configured for the material table can be serial number, name, specification, unit and quantity, or name, specification, unit and the like; and when the business form is judged to contain the header, extracting the business form containing the header characteristics from the drawing according to the preset header characteristics containing at least one field in the header of the business form.
According to the method for extracting the service form, provided by the embodiment of the invention, after the service form is obtained, whether the service form contains a form header is judged; if yes, extracting a service form containing the header characteristics according to the pre-configured header characteristics matched with the header; wherein the header feature comprises at least one field in the header. In the method, the header of the service form of the same type is considered to usually contain the same field or fields, and at least one field can be selected from the common fields for fuzzy matching, so that a plurality of service forms of the same type can be simultaneously extracted, and the flexibility and the universality of extracting the service forms are improved.
The embodiment of the invention also provides another business form extraction method, which is realized on the basis of the method of the embodiment; as shown in fig. 2, the method comprises the steps of:
step S202, acquiring a drawing containing a business form.
Step S204, judging whether the business form contains a header; if yes, go to step S206; if not, go to step S208.
Step S206, if the business form contains the header, extracting the business form containing the header feature from the drawing according to the pre-configured header feature matched with the header; wherein the header feature comprises at least one field in the header.
In practical implementation, the more fields contained in the header feature, the higher the priority of the header feature; when one header feature cannot identify all the specified types of service forms, for example, a material table has multiple headers and the same header fields in the material tables are not many, in order to identify all the material tables, the header feature with the descending priority of [1, n ] items can be configured, that is, one or more header features can be configured for the material table, if a plurality of header features are configured for the material table, the priority can be determined according to the number of fields in the headers included in the header features, the priority of the header feature generally including all the header fields in the specified material table is the highest, and the priority of the corresponding header feature is gradually reduced as the number of the header fields included in the header feature is gradually reduced; the common field with the most occurrence times in the header is used as the header characteristic, and the service form with the most occurrence times in the type of service form can be matched, so that the common field is most universal;
in general, fuzzy matching can be performed by using header features with lower priority to extract a type of tables, and if a designated table needs to be extracted, the designated table can be extracted from the type of tables through full-word matching with the highest priority; for example, the material table is still taken as an example for explanation, for example, there are two material tables, namely a material table 1 and a material table 2, where the header field in the material table 1 includes a serial number, a name, a model number, a specification, a unit, a quantity and a remark; the header fields in the materials table 2 include serial number, category, material name, material specification, design unit, quantity, singleton, purchase unit, loss, total, material source, status and remark; common header features of the two material tables, namely, serial numbers, names, specifications, units and numbers can be selected to configure the header features, fuzzy matching is carried out through a regular expression based on the five fields in the header features, and a material table 1 and a material table 2 can be extracted; the specific fuzzy matching process comprises the following steps: reading each table according to a row, and if at least five columns in the row respectively contain five fields of 'serial number', 'name', 'specification', 'unit' and 'quantity', determining that the business table is a material table; full word matching is similar to fuzzy matching, except that the header fields of a full word match contain at least all of the same fields of the configured header fields for successful matching.
Two material tables 1 and 2 with different heads can be extracted through the common characteristics, if one material table needs to be accurately extracted, a head characteristic with higher priority can be added for full word matching, such as serial number, name, model number and specification, unit, quantity and remark. The material table 1 can be matched precisely through the gauge head characteristics and cannot be interfered by the material table 2.
Step S208, if the business form does not contain the header and meets the preset limiting conditions, extracting the business form containing the form content characteristics from the drawing according to the preset form content characteristics matched with the business form content; wherein, the limiting condition is used for limiting the maximum value of the number of rows and/or the maximum value of the number of columns of the business form; the form content feature comprises at least one field in the business form content.
The above-mentioned business forms generally include: covers, catalogs, materials sheets or frames; the form content features usually comprise at least one field in the content of the business form to be extracted, and the form content features are also usually configured in advance by business form demand personnel; in practical implementation, some business forms do not include a header, such as a cover or a chart label; for the business form which does not contain the form header, corresponding form content characteristics can be configured according to the content of the business form, and the business form containing the form content characteristics is extracted according to the form content characteristics; for example, taking a chart table as an example, the chart table may be different from one another for different design houses, but common character features in the chart table may still be extracted, such as: the 'school, examination, date, figure number, design' and the like can be accurately matched with the chart label table through fuzzy matching of the form content characteristics and the regular expression.
In practical implementation, the more fields contained in the form content feature, the higher the priority of the form content feature; when one form content feature cannot identify all the service forms of the specified type, for example, a drawing table contains a plurality of form contents, and the same form contents in the drawing tables are not large, in order to identify all the drawing tables, the form content features with descending priority can be configured [1, n ], that is, one or more form content features can be configured for the drawing tables, if a plurality of form content features are configured for the drawing tables, the priority can be determined according to the number of fields in the form contents contained in the form content features, the priority of the form content features which usually contain all the form content fields in the specified drawing tables is the highest, and the priority of the corresponding form content features is gradually reduced along with the gradual reduction of the number of the form content fields contained in the form content features; the common field with the most occurrence times in the form content is used as the form content characteristic, and the common field can be matched with the service form with the most occurrence times in the type of service form, so that the common field is most common.
In practical implementation, considering that the more the number of rows or columns of a business form without a header, the more the form contents in the business form are, the probability of error occurrence is usually increased correspondingly by extracting the business form through a limited pre-configured form content feature, and in order to ensure the accuracy of extracting the business form, when the business form is extracted according to the form content feature, the maximum value of the number of rows or the maximum value of the number of columns or the maximum value of the number of rows and the maximum value of the number of columns in the business form are usually limited; if the limit condition is not met, the form content feature is not used for extracting the service form, and the extraction failure is usually prompted; for the case of defining the maximum value of the number of rows and the maximum value of the number of columns at the same time, the service form can be considered not to satisfy the definition condition as long as the number of rows of the service form exceeds the defined maximum value, or the number of columns exceeds the defined maximum value, or the number of rows and columns exceeds the respective defined maximum values at the same time; for example, the maximum value of the number of rows of the service form is limited to 20 rows, and the maximum value of the number of columns is limited to 20 columns, if the service form does not contain a header, and the number of rows of the service form exceeds 20 rows, or the number of columns exceeds 20 columns, or the number of rows exceeds 20 rows and the number of columns also exceeds 20 columns, it can be considered that the service form does not satisfy the limitation condition, the service form is no longer extracted using the form content features, and at this time, an extraction failure is usually prompted; the number of the defined rows or columns can be set according to actual requirements.
For the service forms of statistical type, such as the material table for statistical material information, because the meaning of each column is usually required to be identified in the material table, the corresponding service forms can be searched and extracted through the characteristics of the table header; and for the business form without a header and messy information, the corresponding business form can be searched and extracted through the form content characteristics.
In order to adapt to different service scenes, if a plurality of service forms need to be identified or extracted simultaneously, corresponding form head characteristics or form content characteristics can be respectively configured according to the types of the service forms; for example, the material table and the directory table need to be identified or extracted at the same time, and corresponding header features may be configured according to the material table and the directory table, respectively.
According to the business form extraction method, when the business form is judged not to contain the header, the business form containing the form content characteristics can be extracted from the drawing according to the preset form content characteristics matched with the business form content; wherein, the form content feature comprises at least one field in the service form content, and the more fields contained in the form header feature, the higher the priority of the form header feature; the more fields contained in the form content characteristics, the higher the priority of the form content characteristics; in the method, corresponding header characteristics or form content characteristics can be configured according to whether the business form contains a header or not, so that the method is suitable for the business form containing the header and the business form which does not contain the header and has messy form content information; and moreover, the header characteristics or the form content characteristics with different priorities can be set according to requirements, so that the flexibility and the universality of extracting the service form are improved.
Referring to fig. 3, a schematic structural diagram of a service form extracting apparatus is shown, the apparatus includes an obtaining module 30, configured to obtain a service form; the judging module 31 is configured to judge whether the service form includes a header; the first extraction module 32 is configured to, if the service form includes a header, extract the service form including the header feature according to a pre-configured header feature matched with the header; wherein the header characteristics include at least one field in the header.
According to the business form extraction device provided by the embodiment of the invention, after the business form is obtained, whether the business form contains a form header is judged; if yes, extracting a service form containing the header characteristics according to the pre-configured header characteristics matched with the header; wherein the header feature comprises at least one field in the header. In the device, the header of the service form of the same type is considered to usually contain the same field or fields, and at least one field can be selected from the common fields for fuzzy matching, so that a plurality of service forms of the same type can be simultaneously extracted, and the flexibility and the universality of extracting the service forms are improved.
Further, the more fields contained in the header feature, the higher the priority of the header feature.
Further, as shown in fig. 4, the apparatus further includes: the second extraction module 33 is configured to, if the business form does not include a header and meets a preset limiting condition, extract the business form including the form content feature according to a form content feature that is configured in advance and matches with the business form content; the limiting condition is used for limiting the maximum value of the number of rows and/or the maximum value of the number of columns of the business form; the form content feature contains at least one field in the business form content.
Further, the more fields contained in the form content feature, the higher the priority of the form content feature.
Further, the business form includes: covers, catalogs, materials sheets, or frames.
The implementation principle and the generated technical effect of the service form extraction device provided by the embodiment of the invention are the same as those of the service form extraction method embodiment, and for brief description, the corresponding contents in the service form extraction method embodiment can be referred to where the embodiment of the service form extraction device is not mentioned.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for extracting a business form, the method comprising:
acquiring a drawing containing a business form;
judging whether the business form contains a header or not;
if the business form contains the header, extracting the business form containing the header characteristics from the drawing according to the pre-configured header characteristics matched with the header; wherein the header characteristics include at least one field in the header.
2. The method of claim 1, wherein the more fields included in the header feature, the higher the priority of the header feature.
3. The method of claim 1, further comprising:
if the business form does not contain the form header and meets the preset limiting conditions, extracting the business form containing the form content characteristics from the drawing according to the preset form content characteristics matched with the business form content; wherein the limiting condition is used for limiting the maximum value of the number of rows and/or the maximum value of the number of columns of the business form; the form content feature comprises at least one field in the business form content.
4. The method of claim 3, wherein the more fields included in the form content feature, the higher the priority of the form content feature.
5. The method of claim 1, wherein the business form comprises: covers, catalogs, materials sheets, or frames.
6. A business form extraction apparatus, the apparatus comprising:
the acquisition module is used for acquiring a drawing containing a business form;
the judging module is used for judging whether the business form contains a form header or not;
the first extraction module is used for extracting the business form containing the header characteristics from the drawing according to the pre-configured header characteristics matched with the header if the business form contains the header; wherein the header characteristics include at least one field in the header.
7. The apparatus of claim 6, wherein the more fields included in the header feature, the higher the priority of the header feature.
8. The apparatus of claim 6, further comprising:
the second extraction module is used for extracting the business form containing the form content characteristics from the drawing according to the pre-configured form content characteristics matched with the business form content if the business form does not contain the form header and meets the preset limiting conditions; wherein the limiting condition is used for limiting the maximum value of the number of rows and/or the maximum value of the number of columns of the business form; the form content feature comprises at least one field in the business form content.
9. The apparatus of claim 8, wherein the more fields included in the form content feature, the higher the priority of the form content feature.
10. The apparatus of claim 6, wherein the service form comprises: covers, catalogs, materials sheets, or frames.
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Denomination of invention: Business form extraction method and device Effective date of registration: 20231220 Granted publication date: 20230523 Pledgee: Bank of Changsha Limited by Share Ltd. science and Technology Branch Pledgor: Hunan Teneng Boshi Technology Co.,Ltd. Registration number: Y2023980073086 |