Image detection method of farmland weak navigation information and system thereof

A technology of navigation information and image detection, which is used in instruments, character and pattern recognition, computer parts and other directions to achieve accurate detection results and image recognition.

Inactive Publication Date: 2012-08-08
CHINA AGRI UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: how to realize the image recogn

Method used

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  • Image detection method of farmland weak navigation information and system thereof
  • Image detection method of farmland weak navigation information and system thereof
  • Image detection method of farmland weak navigation information and system thereof

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Embodiment 1

[0078] In this embodiment, the navigation straight line detection of the first frame image first finds the largest color component in the entire image for the color image sequence collected by the camera, and performs a one-dimensional Daubechies wavelet transform on the component image to remove High-frequency noise, image smoothing processing, and then calculate the vertical cumulative histogram of the smoothed image and determine the valley position, start with the valley position, analyze the linear features line by line from bottom to top, find candidate points, and finally complete the detection of the navigation line. refer to image 3 , in this embodiment, the specific steps of the navigation line detection of the first frame image are as follows:

[0079] (1), utilize the Daubechies wavelet of wavelet coefficient N=8 to carry out row-by-row transformation to the whole image, after removing the high-frequency component in each row, carry out inverse transformation, so ...

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Abstract

The invention discloses an image detection method of farmland weak navigation information and a system thereof, relating to the field of machine vision navigation technology. The method comprises the following steps of: S1, collecting an image to be detected of current farmland; S2, judging whether the image to be detected is a first frame image, if so, carrying out navigation straight line detection of the first frame image, and returning to the step S1, otherwise, carrying out navigation line detection of a non first frame image; S3, carrying out farmland end detection according to a result of the navigation line detection of the non first frame image, judging whether reaches a farmland end or not, if so, ending the detection, and otherwise, returning to the step S1. According to the invention, by targeting a farmland work environment with weak navigation information, utilizing methods of wavelet transform and linear analysis, mutual association of front and rear frames, segmentation Hough transform and the like, in the condition that dividing lines of farmland areas are not obvious, the image identification of a navigation path is realized, and a detection result is accurate, stable and fast.

Description

technical field [0001] The invention relates to the technical field of machine vision navigation, in particular to an image detection method and system for weak navigation information in farmland. Background technique [0002] The automatic navigation system of farmland operation machinery is an important part of modern agricultural engineering technology. It has a wide range of uses in farming, sowing, fertilizing, harvesting, spraying pesticides, and collecting farmland environmental information. With the rapid development of precision agriculture with information technology as the core, navigation technology based on machine vision has attracted widespread attention due to its advantages of flexibility, real-time performance and high precision. For the operating environment with obvious boundary areas, such as farming, harvesting, transplanting, etc., the image contains more navigation information, but for the field operation environment such as sowing, because the area b...

Claims

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Application Information

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IPC IPC(8): G06K9/00
Inventor 陈兵旗刘阳
Owner CHINA AGRI UNIV
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