CN109918351A - A kind of method and system that Beamer PowerPoint is converted to powerpoint presentation - Google Patents
A kind of method and system that Beamer PowerPoint is converted to powerpoint presentation Download PDFInfo
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Abstract
The present invention provides a kind of method and system that Beamer PowerPoint is converted to powerpoint presentation, it include: the Beamer PowerPoint initial information provided according to user, obtain the data information of object element in all Beamer PowerPoints, in conjunction with the label of object element in Beamer manuscript, the content information and format information of text, picture, formula, table in document are extracted respectively；Data content in document and attribute are analyzed in conjunction with deep learning algorithm according to the mode that recorded data information and data store, the content of different attribute is distinguish；And conversion process is carried out to text, picture, table, formula；The data of element in Beamer manuscript are stored according to different attribute into different variables, according to the number, length and location information of data element in source document, the original presentation manuscript information analyzed and converted is sequentially written in the blank powerpoint presentation of generation.
Description
Technical field
The present invention relates to document conversion and extractive techniques, and in particular to a kind of Beamer PowerPoint is drilled to PowerPoint
Show the method and system of manuscript conversion.
Background technique
With the rise of cloud computing and mobile Internet, office software is just welcoming the deep change of market and technological layer
Leather.PowerPoint is generally made by text, picture etc. as one of office software, wherein it is aobvious to add some dynamics
The audio-video document for showing effect, it is very widely used in fields such as business, education, government organs.
Beamer is the free PowerPoint tools based on LaTeX, due to TeX outstanding mathematical formulae control and text
The report of shelves typesetting function, general professional stronger discussion or meeting all uses Beamer PowerPoint, it is in profession
There is extensive use in the fields such as report and scientific research.
Microsoft Office PowerPoint is the PowerPoint program developed by Microsoft Corporation, is
One of component in Microsoft Office system.It is made extensively by commercial staff, teacher, student and start-up
With.According to Microsoft developer's statistics indicate that, about 300,000,000 PowerPoints are with Microsoft Office every year
PowerPoint production.
Compared to Microsoft Office powerpoint presentation, Beamer PowerPoint in aesthetic measure and
Shortcomings in the flexibility of production.The present invention provides a kind of Beamer PowerPoints to Microsoft Office
The method that powerpoint presentation is quickly converted, applied to professional PowerPoint is more convenient, beautiful to editing
The conversion of Microsoft Office powerpoint presentation, solves traditional documents software for editing and is difficult to support multiple types
The problem of type document mutually converts provides tool support to meet user to different document type on-line conversion.It expands specially
The application range of industry PowerPoint is edited and is utilized to Beamer PowerPoint content convenient for layman, is colleges and universities
The convenient and fast PowerPoint converting system of the offers such as teachers and students, scientific research personnel.
Summary of the invention
The technical problem to be solved in the present invention is that for current powerpoint presentation and Beamer PowerPoint
Can not flexible conversion the problem of, provide a kind of method that Beamer PowerPoint is converted to powerpoint presentation and be
System.
A kind of method that Beamer PowerPoint is converted to powerpoint presentation, comprising:
S1, source file information extraction: the Beamer PowerPoint of user's offer is obtained according to target each in Beamer manuscript
The label of element extracts data information corresponding to various labels respectively；The object element include: text, picture, formula,
The content information and format information of table；
S2, the analysis of source file data: the mode stored according to data information recorded in step S1 and data, in conjunction with
Deep learning algorithm analyzes data content in document and format, and the content of different-format is distinguish；And to text
Word, picture, table, formula carry out conversion process to generate the object element for meeting PowerPoint；
The generation of S3, file destination: the data of element in Beamer manuscript are stored according to different-format to different changes
In amount, according to the number, length and location information of object element in source document, by the original presentation analyzed and converted text
Original text information is sequentially written in the blank Microsoft Office powerpoint presentation of generation.
Further, source file information extraction specifically includes:
S11, the original Beamer document elements information provided according to user, construct one in java program
BufferedReader function calls getSlides method to read the data of object element information in the Beamer PowerPoint
Stream；
S12, the pretreatment for carrying out PowerPoint, different labels represents the target element of different attribute in Beamer manuscript
Element obtains the data of text on each lantern slide, picture, formula, table by the internalist methodology in the hslf module of construction
Information；
S13, lteral data is extracted, obtains document segment data, font size and format information；
S14, to had in data flow begin { tabular } | 1 | c | r | } with the data of end { tabular } label into
The extraction of row form data；
S15, the extraction that the data that Biao Qian includegraphics [] { } is had in data flow are carried out with picture；
S16, to having begin { displaymath } and end { displaymath }, begin in data flow
{ equation } with the data of end { equation } and $ $ label carry out the extraction of formula.
Further, source file data analysis specifically includes:
S21, source PowerPoint data are recorded in correlated variables defined in program, incorporating parametric is analyzed in data
Appearance, type and format information；
The mode that information and data recorded in S22, step S21 store in Beamer, uses deep learning
Algorithm carries out, and carries out various dimensions, multiattribute analysis to source data, according to the difference of element choose respectively it is the most approximate or
With highest element switching strategy is spent, the optimal text of bandwagon effect, picture, table element information flow are formed；
S23, pass through a variety of deep learning algorithms pair including stack noise reduction autocoder, logistic regression
Object element information in data analysis module carries out intelligent recognition and classification, tells the data stored in variable in source
Beamer PowerPoint institute role, attribute, and different property contents is distinguish；
Formula in S24, extraction source PowerPoint is scaled, is denoised, the processing such as binaryzation, then by OCR and semantic is turned
Formula is changed, the formula of the Microsoft Office powerpoint presentation formatted.
Further, the generation of file destination specifically includes:
S31, JACOB component definition one new Microsoft Office powerpoint presentation, creation are used
One AddNewSlide function is to determine whether need to generate new single slide；
S32, the write-in that lantern slide bottom footer information data is realized by construction HeadersFooters class；
S33, SlideMaster class is constructed to adjust the template type of the PPT PowerPoint of generation；
The data information of each object element is written into every lantern slide for S34, construction RichTextRun class；
S35, analysis Beamer PowerPoint and Microsoft Office PowerPoint in text font format,
The coded format of formula is distinguished, and using format match rule in Java, carries out format match；
S36, using JACOB component to the content category of text, picture, table and formula in source document object element information flow
Property and relative position carry out data analysis, between two parts of PowerPoints carry out content-data conversion, ultimately generate
Microsoft Office powerpoint presentation.
A kind of system that Beamer PowerPoint is converted to powerpoint presentation, comprising:
Source file information extraction modules: the Beamer PowerPoint initial information for being provided according to user obtains all
The data information of object element in Beamer PowerPoint extracts text in conjunction with the label of object element in Beamer manuscript respectively
The content information and format information of text, picture, formula, table in shelves；
Source file data analysis module: the mode stored for the data information according to recorded in step S1 and data,
In conjunction with deep learning algorithm, data content in document and attribute are analyzed, the content of different attribute is distinguish；And it is right
Text, picture, table, formula carry out conversion process；
The generation module of file destination: for being stored the data of element in Beamer manuscript according to different attribute to difference
Variable in, according to the number, length and location information of data element in source document, will analyze and what is converted original drill
Show that manuscript information is sequentially written in the blank Microsoft Office powerpoint presentation of generation.
Compared with prior art, the beneficial effects of the present invention are: can be realized Beamer PowerPoint to Microsoft
The intelligent conversion of Office powerpoint presentation is applied to professional PowerPoint to more beautiful and convenient
The conversion of Microsoft Office powerpoint presentation, solve traditional documents software for editing be difficult to support it is a variety of
The problem of type document mutually converts provides tool support to meet user to different document type on-line conversion.It reduces special
The difficulty of industry PowerPoint conversion, expands the application range of professional PowerPoint, demonstrates convenient for layman Beamer
Manuscript content is edited and is utilized, and provides convenient and fast PowerPoint converting system for colleges and universities teachers and students, scientific research personnel etc..The present invention
Fill up current both at home and abroad from intelligently turning from Beamer PowerPoint to Microsoft Office powerpoint presentation
The field blank changed.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment the invention will be further described, in attached drawing:
Fig. 1 is a kind of method flow diagram that Beamer PowerPoint is converted to powerpoint presentation of the present invention；
Fig. 2 is a kind of system construction drawing that Beamer PowerPoint is converted to powerpoint presentation of the present invention；
The flow diagram of source file information extraction in Fig. 3 present invention；
The flow diagram of source file data analysis in Fig. 4 present invention；
The flow diagram of the generation of file destination in Fig. 5 present invention.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
A specific embodiment of the invention.
A kind of method that Beamer PowerPoint is converted to powerpoint presentation, as shown in Figure 1, comprising:
S1, source file information extraction: the Beamer PowerPoint initial information provided according to user obtains all Beamer
The data information of object element in PowerPoint extracts document Chinese in conjunction with the label of object element in Beamer manuscript respectively
Word, picture, formula, table content information and format information；
S2, the analysis of source file data: the mode stored according to data information recorded in step S1 and data, in conjunction with
Deep learning algorithm analyzes data content in document and attribute, and the content of different attribute is distinguish；And to text
Word, picture, table, formula carry out conversion process；
The generation of S3, file destination: the data of element in Beamer manuscript are stored according to different attribute to different changes
In amount, according to the number, length and location information of data element in source document, by the original presentation analyzed and converted text
Original text information is sequentially written in the blank Microsoft Office powerpoint presentation of generation.
In the present embodiment, specific step includes:
S11: as shown in Fig. 2, Fig. 2 is system module schematic diagram of the invention, including source file information extraction, source document number of packages
According to analysis, three modules of generation of file destination.The present invention designs source by constructing BufferedReader function in Java
File information extraction module；The object element attribute point in data analysis module is realized by stack noise reduction autocoder
Analysis；It is divided by location information of the K-means algorithm to data stream contents；Formula by analyzing Beamer and PPT is compiled
Difference between code format, the formula conversion in design data analysis module；It introduces JACOB and realizes file destination generation module.
And then realize the conversion of Beamer PowerPoint of the invention to Microsoft Office powerpoint presentation.Under
Face is respectively described in detail each realization process.
S12: as shown in figure 3, Fig. 3 is source file information extraction modules relation schematic diagram of the invention.The present invention is not according to
Same source Beamer PowerPoint data object uses different extracting modes, and the data after extraction are handled again, with more
The data format of good analysis file destination.Process is:
S13: upload button is clicked in program operation, and calling system file selects dialog box FileDialog, is selected for user
Beamer PowerPoint to be converted；After the completion of upload, source PowerPoint is read by the BufferedReader function of construction
Middle object element data flow obtains element information all in the Beamer presentation file.By source document original text data label
Documentclass [option] { document class } comes between the paragraph content in specified document class, paragraph format, opposite position paragraph
It the information such as sets to extract.
S14: the data of other complex formats are extracted, to had in data flow begin { tabular } | 1 | c | r | } Yu
The data of end { tabular } label carry out the extraction of form data；To in data flow have Biao Qian includegraphics
The data of [] { } carry out the extraction of picture；To having begin { displaymath } and end in data flow
{ displaymath }, begin { equation } with the data of end { equation } and $ $ label carry out the extraction of formula.
And save the data of extraction, carry out the analysis of next step.
S21: as shown in figure 4, Fig. 4 is source file data analysis module relation schematic diagram of the invention.The present invention is guaranteeing
Outside basic conversion effect, consider Microsoft Office powerpoint presentation inner element relative position and
Interrelated information is allowed to more meet actual document situation.The present invention is using stack denoising autocoder to source document mesh
It marks element information and carries out feature extraction, a new classifier is formed in conjunction with logistic regression algorithm, to variant attribute
Object element distinguishes.And the present invention can be automatically by the text automatic cluster of same format, then in different-format text
Hold automatic distinguishing, substantially increases the accuracy of system judgement, improve the applicable performance and the scope of application of system.Process is:
S22: in conjunction with the source file object element traffic flow information of record, reading the label and its content of each data, training
Stack denoises the extraction that autocoder carries out feature to source traffic, using logistic regression algorithm to different attribute
Element is classified, and each text in Beamer manuscript, table, picture and its location information are obtained.
S23: the input matrix by every section of font size, line number, horizontal layout position etc. as K-means clustering algorithm；No
Same byte number indicates different classification numbers, using the classification number of font size as the foundation of classification, that is, how many class is divided into.Run K-
The analysis of means algorithm it includes information, by defining an Euclidean distance function peace mass center distance function, by source
Similar content of text incorporates into same category in Beamer PowerPoint, and distinguish different font size expressions is level-one mark
Topic, second level title, text, formula etc..
S24: formula conversion processing part.The conversion of formula needs to analyze source file, for different formula classes
Type, if formula be picture format, first by comparison front and back PowerPoint position size etc. information, to formula picture
The processing such as scaling, denoising, binaryzation is done, then by way of OCR and semantic conversion, conversion formula is formatted
Formula in Microsoft Office powerpoint presentation.
S31: as shown in figure 5, Fig. 5 is the generation module relation schematic diagram of file destination of the invention.Use JACOB component
A new Microsoft Office powerpoint presentation is defined, data analysis module according to the present invention combines
Corresponding position information after text, table and its conversion is obtained, the Microsoft Office of blank is loaded into
In PowerPoint manuscript.
Successively information is written into Microsoft Office powerpoint presentation in S32:JACOB.For source
Picture and formula are directly carried out after carrying out rule match to Beamer manuscript by JACOB component in Beamer PowerPoint
Duplication and paste operation, ultimately generate Microsoft Office powerpoint presentation.
The theory significance and practical application value that the present invention has: it can be realized Beamer PowerPoint to Microsoft
The intelligent conversion of Office powerpoint presentation is applied to professional PowerPoint to more beautiful and convenient
The conversion of Microsoft Office powerpoint presentation, solve traditional documents software for editing be difficult to support it is a variety of
The problem of type document mutually converts provides tool support to meet user to different document type on-line conversion.It reduces special
The difficulty of industry PowerPoint conversion, expands the application range of professional PowerPoint, demonstrates convenient for layman Beamer
Manuscript content is edited and is utilized, and provides convenient and fast PowerPoint converting system for colleges and universities teachers and students, scientific research personnel etc..
The invention has been filled up currently to be drilled from Beamer PowerPoint to Microsoft Office PowerPoint both at home and abroad
Show the field blank of manuscript intelligent conversion.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (5)
1. a kind of method that Beamer PowerPoint is converted to powerpoint presentation characterized by comprising
S1, source file information extraction: the Beamer PowerPoint of user's offer is obtained according to object element each in Beamer manuscript
Label, extract data information corresponding to various labels respectively；The object element includes: text, picture, formula, table
Content information and format information；
S2, the analysis of source file data: the mode stored according to data information recorded in step S1 and data, in conjunction with depth
Learning algorithm analyzes data content in document and format, and the content of different-format is distinguish；And to text, figure
Piece, table, formula carry out conversion process to generate the object element for meeting PowerPoint；
The generation of S3, file destination: the data of element in Beamer manuscript are stored according to different-format into different variables,
According to the number, length and location information of object element in source document, the original presentation manuscript analyzed and converted is believed
Breath is sequentially written in the blank Microsoft Office powerpoint presentation of generation.
2. a kind of method that Beamer PowerPoint is converted to powerpoint presentation as described in claim 1, special
Sign is that source file information extraction specifically includes:
S11, the original Beamer document elements information provided according to user, construct one in java program
BufferedReader function calls getSlides method to read the data of object element information in the Beamer PowerPoint
Stream；
S12, the pretreatment for carrying out PowerPoint, different labels represents the object element of different attribute in Beamer manuscript,
The data letter of text on each lantern slide, picture, formula, table is obtained by the internalist methodology in the hslf module of construction
Breath；
S13, lteral data is extracted, obtains document segment data, font size and format information；
S14, to had in data flow begin { tabular } | 1 | c | r | } with the data of end { tabular } label carry out table
The extraction of lattice information；
S15, the extraction that the data that Biao Qian includegraphics [] { } is had in data flow are carried out with picture；
S16, to having begin { displaymath } and end { displaymath }, begin { equation } in data flow
With the data of end { equation } and $ $ label carry out the extraction of formula.
3. a kind of method that Beamer PowerPoint is converted to powerpoint presentation as described in claim 1, special
Sign is that the analysis of source file data specifically includes:
S21, source PowerPoint data are recorded in correlated variables defined in program, incorporating parametric analyzes data content, class
Type and format information；
The mode that information and data recorded in S22, step S21 store in Beamer, uses the algorithm of deep learning
It carries out, various dimensions, multiattribute analysis is carried out to source data, the most approximate or matching degree is chosen according to the difference of element respectively
Highest element switching strategy forms the optimal text of bandwagon effect, picture, table element information flow；
S23, by a variety of deep learning algorithms including stack noise reduction autocoder, logistic regression to data
Object element information in analysis module carries out intelligent recognition and classification, tells the data stored in variable and drills in source Beamer
Show manuscript institute role, attribute, and different property contents is distinguish；
Formula in S24, extraction source PowerPoint is scaled, is denoised, the processing such as binaryzation, then public by OCR and semantic conversion
Formula, the formula of the Microsoft Office powerpoint presentation formatted.
4. a kind of method that Beamer PowerPoint is converted to powerpoint presentation as described in claim 1, special
Sign is that the generation of file destination specifically includes:
S31, JACOB component definition one new Microsoft Office powerpoint presentation, creation one are used
AddNewSlide function is to determine whether need to generate new single slide；
S32, the write-in that lantern slide bottom footer information data is realized by construction HeadersFooters class；
S33, SlideMaster class is constructed to adjust the template type of the PPT PowerPoint of generation；
The data information of each object element is written into every lantern slide for S34, construction RichTextRun class；
Font format, the formula of text in S35, analysis Beamer PowerPoint and Microsoft Office PowerPoint
Coded format difference, utilize in Java format match rule, carry out format match；
S36, using JACOB component to the contents attribute of text in source document object element information flow, picture, table and formula and
Relative position carries out data analysis, and the conversion of content-data is carried out between two parts of PowerPoints, ultimately generates Microsoft
Office powerpoint presentation.
5. a kind of system that Beamer PowerPoint is converted to powerpoint presentation characterized by comprising
Source file information extraction modules: the Beamer PowerPoint initial information for being provided according to user obtains all
The data information of object element in Beamer PowerPoint extracts text in conjunction with the label of object element in Beamer manuscript respectively
The content information and format information of text, picture, formula, table in shelves；
Source file data analysis module: the mode stored for the data information according to recorded in step S1 and data, in conjunction with
Deep learning algorithm analyzes data content in document and attribute, and the content of different attribute is distinguish；And to text
Word, picture, table, formula carry out conversion process；
The generation module of file destination: for being stored the data of element in Beamer manuscript according to different attribute to different changes
In amount, according to the number, length and location information of data element in source document, by the original presentation analyzed and converted text
Original text information is sequentially written in the blank Microsoft Office powerpoint presentation of generation.
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| CN112560406A (en) * | 2020-12-17 | 2021-03-26 | 中科三清科技有限公司 | Method and device for generating forecast consultation demonstration manuscript |
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