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Table frame prediction model generation method and device and table positioning method and device

A technology for predicting models and borders, which is applied in the field of image processing and can solve problems such as low success rate of table border determination and affecting table positioning.

Active Publication Date: 2020-05-19
BEIJING MININGLAMP SOFTWARE SYST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, this method can only be carried out based on special circumstances. When the table does not have the above characteristics, the table border still cannot be determined, so the success rate of determining the table border is very low, which further affects the positioning of the table

Method used

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  • Table frame prediction model generation method and device and table positioning method and device
  • Table frame prediction model generation method and device and table positioning method and device
  • Table frame prediction model generation method and device and table positioning method and device

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Embodiment Construction

[0079] The application describes a number of embodiments, but the description is illustrative rather than restrictive, and it will be obvious to those of ordinary skill in the art that within the scope of the embodiments described in the application, There are many more embodiments and implementations. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Except where expressly limited, any feature or element of any embodiment may be used in combination with, or substituted for, any other feature or element of any other embodiment.

[0080] This application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The disclosed embodiments, features and elements of this application can also be combined with any conventional features or elements to form unique inventive solutions as defined by the clai...

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Abstract

The invention discloses a table frame prediction model generation method and device and a table positioning method and device, and the method comprises the steps: obtaining a plurality of sample document pages containing tables, and converting the sample document pages into sample images; dividing each sample document page and each sample image into S * S first grids and S * S second grids respectively; obtaining semantic information of texts contained in the S * S first grids as semantic information of the S * S first grids; obtaining prediction frame information of S * S second grids; and taking the obtained information as a training sample set, iteratively training an image recognition model, and generating a table frame prediction model for predicting table frame information. The imagerecognition model adopts a large number of training samples and fuses semantic information in the training process, so that the table frame information can be better predicted, the success rate of table frame determination is improved, and the smooth proceeding of the subsequent table positioning process is ensured.

Description

technical field [0001] This article relates to image processing technology, especially a method and device for generating a table border prediction model and a table positioning method and device. Background technique [0002] Information analysis often needs to extract information such as text, tables, and pictures from documents, such as Portable Document Format (PDF). To achieve information extraction, the border of the table must first be determined, and then based on the determined table border. For the positioning of the table, since the data in the PDF is stored in an unstructured data storage method, the determination of the table border is relatively complicated. [0003] In related technologies, the determination of the table frame is often based on the fact that the fonts of the table and its non-tables are different or that the character flow of the table is aligned in columns. [0004] However, this method can only be carried out based on special circumstances....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/32G06K9/62G06K9/72G06F40/289G06F40/30
CPCG06V30/412G06V20/635G06V10/768G06V30/10G06F18/241
Inventor 李倩兰袁灿于政
Owner BEIJING MININGLAMP SOFTWARE SYST CO LTD
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