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Field navigation line extraction method based on multiple characteristic point selection

A technology of multiple selection and extraction methods, which is applied in the extraction from basic elements, generation of 2D images, and image data processing, etc., can solve problems such as the influence of navigation line extraction accuracy, and achieve the effect of improving extraction accuracy.

Inactive Publication Date: 2017-02-22
GUANGXI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the error in feature point extraction, the accuracy of navigation line extraction is affected to a certain extent

Method used

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Embodiment Construction

[0013] In order to clearly understand the technical solution of the present invention, its detailed structure will be presented in the following description. Obviously, the implementation of the embodiments of the invention is not limited to specific details familiar to those skilled in the art. The preferred embodiments of the present invention are described in detail below, and there may be other implementations besides those described in detail.

[0014] The present invention will be described in further detail below in conjunction with the examples.

[0015] The technical scheme adopted by the patent of the present invention is divided into 3 steps:

[0016] A field navigation line extraction method based on multiple feature point selections, the method comprising the following steps:

[0017] S1: Extract field navigation line feature points; according to the existing field navigation line feature point extraction method, the field image is firstly segmented, and the ult...

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Abstract

The present invention discloses a field navigation line extraction method based on multiple characteristic point selection. The method comprises the following steps of S1 extracting the field navigation line characteristic points; S2 repeatedly selecting the characteristic points; S3 carrying out the straight line fitting. The method provided by the present invention is helpful to improve the extraction precision of the navigation lines further, thereby providing the basis for improving the relevant parameter automatic measurement precision.

Description

technical field [0001] The invention belongs to the field of machine navigation, and in particular relates to a field navigation line extraction method based on multiple feature point selections. Background technique [0002] In the automatic navigation of field robots, the extraction of navigation lines is the basis of visual navigation of field robots. In existing research, navigation lines are generally obtained by extracting feature points and fitting straight lines. Due to the error in feature point extraction, the accuracy of navigation line extraction is affected to a certain extent. Considering each feature point as the result of one measurement, there is a certain error relative to the navigation line. If you think that there are gross errors in these errors, you can consider eliminating some feature points through feature point selection, and then re-extract the navigation line, multiple times After repetition, the extraction accuracy of the navigation line can b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T11/20
CPCG06T11/203
Inventor 胡波覃永新刘瑞琪
Owner GUANGXI UNIVERSITY OF TECHNOLOGY