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AutoCAD drawing block identification method and device based on naive Bayes classifier

A Bayesian classifier and tile recognition technology, applied in the field of tile recognition, can solve the problem of low recognition accuracy of recognition programs, and achieve the effects of low recognition accuracy, high accuracy and high recognition efficiency.

Inactive Publication Date: 2018-09-04
GUANGDONG UNIV OF TECH
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Problems solved by technology

[0005] The invention provides an autoCAD block recognition method and device based on a naive Bayesian classifier, which is used to solve the technical problem that the recognition accuracy of general recognition programs is very low

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  • AutoCAD drawing block identification method and device based on naive Bayes classifier
  • AutoCAD drawing block identification method and device based on naive Bayes classifier
  • AutoCAD drawing block identification method and device based on naive Bayes classifier

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Embodiment Construction

[0068] The invention provides an autoCAD block recognition method and device based on a naive Bayesian classifier, which is used to solve the technical problem that the recognition accuracy of general recognition programs is very low.

[0069] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only some, not all, embodiments of the present invention. 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.

[0070] see figure 1 , an embodiment of the autoCAD block recognition method based on a naive Bayesian ...

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Abstract

The invention provides an autoCAD drawing block identification method and device based on a naive Bayes classifier. The method includes: obtaining target drawing blocks and non-target drawing blocks to use the same as a drawing block database; randomly extracting a training set and a test set; determining features corresponding to drawing blocks; training a polynomial model, a Bernoulli model anda hybrid model according to the features; and using a model with highest model accuracy, which is obtained by tests, as a final model, and constructing the naive Bayes classifier to identify a to-be-identified drawing block. According to the method, the database is divided into the training set and the test set, then the polynomial model, the Bernoulli model and the hybrid model are trained through the training set, corresponding model accuracy is obtained through the test set, the best model is selected according to the model accuracy to construct the naive Bayes classifier used for identifying the autoCAD drawing block, the naive Bayes classifier is enabled to have higher accuracy, identification efficiency is high, and the technical problem of low identification accuracy of the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of block recognition, in particular to an autoCAD block recognition method and device based on a naive Bayesian classifier. Background technique [0002] AutoCAD is a relatively popular computer-aided design software, which involves many fields and is widely used. We carry out secondary development through autoCAD, which can make the functions of autoCAD more specialized, so that autoCAD can quickly meet the needs of different objects and realize efficient auxiliary design. Among them, the identification of autoCAD blocks is one of the key technologies. AutoCAD blocks are composed of multiple graphic entities. The existing technology is to identify the block by accurately identifying the block of the autoCAD, for example, by the name of the block, or accurately determining the components of each graphic element of the block. [0003] However, because there are no specific standards for blocks in many indu...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62
CPCG06F18/24155G06F18/29
Inventor 陈境焕李海燕黄运保李璞
Owner GUANGDONG UNIV OF TECH
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