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Morphology-based water-land-air boundary line detection method and system, medium and equipment

A technology based on morphology and detection methods, applied in image data processing, instruments, calculations, etc., can solve problems such as helplessness and achieve fast and accurate detection results

Inactive Publication Date: 2019-08-06
SHENYANG INST OF AUTOMATION GUANGZHOU CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing mature sea antenna detection algorithm is helpless in the face of more complex land and water environments

Method used

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  • Morphology-based water-land-air boundary line detection method and system, medium and equipment
  • Morphology-based water-land-air boundary line detection method and system, medium and equipment
  • Morphology-based water-land-air boundary line detection method and system, medium and equipment

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Embodiment 1

[0065] Such as figure 1 As shown, the present embodiment provides a morphological-based detection method for water, land and air boundaries, and the specific steps are as follows:

[0066] S1: Preprocessing the original pictures obtained by the Point Gray camera;

[0067] After each frame of image is scaled and scaled, it becomes 640x480. Then, a 7x7 window is used to perform Gaussian blur and denoising processing on the scaled image, and finally convert from RGB color space to HSV color space;

[0068] S2: Perform morphological gradient processing on the brightness channel (V channel);

[0069] The HSV color space eliminates the correlation of the three channels of hue, saturation, and brightness, which is beneficial to image processing; through a large number of image comparisons, it is found that the brightness of land areas is much lower than that of sky areas and water areas. Based on this feature, the The brightness channel performs morphological gradient processing, a...

Embodiment 2

[0108] This embodiment also provides a morphology-based detection system for the boundary line between land, water and air, including: an image preprocessing module, a morphological gradient processing module, a segmentation processing module, and an extraction module for the boundary line between land, water and air, and the image preprocessing module includes a scale A scaling unit, a Gaussian blur denoising processing unit, and a color space conversion unit are used to preprocess the obtained image, respectively perform scale scaling and Gaussian blur denoising processing, and convert the RGB color space of the image to the HSV color space;

[0109] In this embodiment, the morphological gradient processing module is used to expand the highlighted area in the coarsened image to obtain a dilated map, corrode the highlighted area in the thinned image to obtain a corroded map, and subtract the corroded map from the dilated map to obtain a morphological gradient Figure; the segme...

Embodiment 3

[0112] This embodiment also provides a storage medium, the storage medium can be a storage medium such as ROM, RAM, magnetic disk, optical disk, etc., and the storage medium stores one or more programs. When the programs are executed by the processor, the implementation of Embodiment 1 based on Morphological water, land and air boundary detection method:

[0113] S1: Preprocessing the original pictures obtained by the Point Gray camera;

[0114] After each frame of image is scaled and scaled, it becomes 640x480. Then, a 7x7 window is used to perform Gaussian blur and denoising processing on the scaled image, and finally convert from RGB color space to HSV color space;

[0115] S2: Perform morphological gradient processing on the brightness channel (V channel);

[0116] The HSV color space eliminates the correlation of the three channels of hue, saturation, and brightness, which is beneficial to image processing; through a large number of image comparisons, it is found that th...

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Abstract

The invention discloses a morphology-based water-land-air boundary line detection method and system, a medium and equipment. The system comprises an image preprocessing module, a morphological gradient processing module, a segmentation processing module and a water-land-air boundary line extraction module. The method comprises the specific steps: preprocessing an obtained original picture, whereinpreprocessing comprises scaling, Gaussian blur denoising and color space conversion processing; obtaining a preprocessed image, wherein the color space conversion processing includes converting an RGB color space into an HSV color space; performing morphological gradient processing on the brightness channel in the HSV color space of the preprocessed image to obtain a morphological gradient map; performing watershed segmentation processing on the morphological gradient image to obtain a segmented image; and extracting land-air lines and land-water lines from the segmented image by adopting anedge detection algorithm. According to the method, the water, land and air boundary line can be rapidly and accurately detected, an important reference standard is provided for autonomous navigation of the unmanned ship, and the unmanned ship can adapt to various water area environments.

Description

technical field [0001] The invention relates to the technical field of autonomous detection and navigation, in particular to a morphological-based detection method for the boundary line of water, land and air, a detection system, medium and equipment for the boundary line of water, land and air based on morphology. Background technique [0002] Today, unmanned ships have attracted more and more attention from researchers. In just a few years, the research on unmanned ships has achieved great research results. At present, the research on unmanned ships mainly focuses on water areas, such as water quality monitoring, underwater terrain mapping, rescue, fishery patrol and other important purposes. In order to meet the autonomous navigation requirements of the unmanned ship, the detection of the sea antenna must be completed first. However, the existing mature sea antenna detection algorithm is helpless in the face of more complex land and water environments. Therefore, resear...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T7/12G06T7/90
CPCG06T7/0002G06T2207/10024G06T2207/20172G06T2207/30181G06T7/12G06T7/90
Inventor 熊俊峰冯天伟肖金超刘继海何玉庆苑明哲
Owner SHENYANG INST OF AUTOMATION GUANGZHOU CHINESE ACAD OF SCI