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Method and device for graph recognition

A chart and to-be-recognized technology, applied in the field of chart recognition, can solve the problems that charts cannot be recognized or the recognition effect is poor, the application of graphic and text recognition technology is limited, and only focus on text recognition.

Active Publication Date: 2018-06-15
SICHUAN CHOFN INTPROP SERVICES
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Problems solved by technology

Existing image-text recognition generally only focuses on text recognition, and cannot recognize charts or the recognition effect is poor, which limits the application of image-text recognition technology

Method used

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  • Method and device for graph recognition
  • Method and device for graph recognition
  • Method and device for graph recognition

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Embodiment Construction

[0055] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0056] In today's society, people cannot do without ...

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Abstract

The invention relates to the field of image recognition, and provides a method and device for graph recognition. The method includes: loading a picture, binarizing the picture, assigning coordinate information to each pixel of the binary picture, and performing tilt correction processing on the binary picture. Select any intersection point as the starting point, read the coordinate information of the intersection point adjacent to the starting point clockwise or counterclockwise, and record the coordinate information of the intersection point passed by the minimum closed-loop path. The number of cells surrounded by the minimum closed-loop path is determined according to the coordinate information of the intersection point passed by the minimum closed-loop path. A table is generated according to the coordinate information of the intersection points passed by the minimum closed-loop path and the number of cells surrounded by the minimum closed-loop path. The device includes: a picture loading unit, a picture binarization unit, a tilt correction unit, a storage unit, an intersection point reading unit, a cell number calculation unit and a table generation unit. The method and device for chart recognition can better recognize tables, and can recognize merged cells in the tables.

Description

technical field [0001] The invention relates to the field of image recognition, in particular to a method and device for chart recognition. Background technique [0002] Graphic recognition is also called optical character recognition (Optical Character Recognition, OCR) refers to: electronic devices (such as scanners or digital cameras) check the characters printed on paper, determine their shape by detecting dark and bright patterns, and then use character recognition Methods The process of translating shapes into computer characters; that is, the process of scanning text data, and then analyzing and processing image files to obtain text information. Existing image-text recognition generally only focuses on character recognition, and cannot recognize graphs or the recognition effect is poor, which limits the application of image-text recognition technology. Contents of the invention [0003] In view of this, the object of the present invention is to provide a method for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/38
Inventor 张振
Owner SICHUAN CHOFN INTPROP SERVICES
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