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A method for identify connection relationship of flowchart

A technology that connects relationships and recognition methods, applied in the field of image recognition, can solve problems such as difficult to understand image semantics, and achieve the effect of reducing workload

Active Publication Date: 2019-02-26
SHAANXI UNIV OF SCI & TECH
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Problems solved by technology

At present, the recognition of the flow chart connection relationship is mainly based on the extraction of straight lines, but it is difficult to understand the semantics of the image due to excessive reliance on image contour features

Method used

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  • A method for identify connection relationship of flowchart
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  • A method for identify connection relationship of flowchart

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described below in conjunction with the embodiments and accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] Such as figure 1 As shown, the steps of the identification method of the present invention include:

[0039] S1 classification defines the relative corner points of connecting lines

[0040] S2 defines the combination rules of connection relationship corners

[0041] S3 extracts and identifies the corner points related to the connection relationship in the input flow diagram

[0042] S4 identifies the flow chart connection r...

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Abstract

A method for identify connection relationship of flowchart is characterized in that the method includes identifying connection relation between connection line and corner classification according to local characteristic of connection line in flowchart. Secondly, the corner combination rules of connection relation are defined according to the connection specification of flowchart primitives. Then,the corner points on the connection relation in the flow image are extracted and recognized, and the connection relation is recognized based on the corner point combination. Finally, the recognition result is output as text. The invention provides a new technical support for accurately identifying the flowchart structure based on the connection relationship in the corner feature identification flow image.

Description

technical field [0001] The invention belongs to the technical field of image recognition, in particular to a flow chart connection relation recognition method. Background technique [0002] Existing computer information retrieval systems mainly use retrieval technology based on text matching, but documents in chemical, pharmaceutical, machinery, information technology and other fields often contain a large number of process images, which contain rich information and are crucial for retrieval and novelty retrieval. important. [0003] A flow chart can intuitively describe the specific steps of a work process and has important semantics. At present, the recognition of the flow chart connection relationship is mainly based on the extraction of straight lines, but it is difficult to understand the image semantics by relying too much on image contour features. Because there is an obvious semantic gap between process image features and semantics, this "gap" is mainly reflected i...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/62
CPCG06V30/414G06F18/2411G06F18/214
Inventor 孙连山李昕妍侯涛杜翰超
Owner SHAANXI UNIV OF SCI & TECH
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