Hyperspectral image classification method, storage medium and computer equipment

A hyperspectral image and classification method technology, applied in the field of storage media and computer equipment, and hyperspectral image classification methods, can solve problems such as inability to classify hyperspectral images, and achieve the effects of improving discrimination ability, accurate classification accuracy, and reducing noise

Active Publication Date: 2020-11-03
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the existing technology cannot accurately classify hyperspectral images, the present invention proposes a weighted extended multi-attribute profile and extreme learning machine hyperspectral image classification method, storage medium and computer equipment, which can effectively extract different attributes At the same time, it can reduce the noise and smooth the homogeneous regions in the hyperspectral image, which can effectively improve the classification accuracy.

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  • Hyperspectral image classification method, storage medium and computer equipment
  • Hyperspectral image classification method, storage medium and computer equipment
  • Hyperspectral image classification method, storage medium and computer equipment

Examples

Experimental program
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Embodiment 1

[0035] like figure 1 As shown, a hyperspectral image classification method, the image classification method performs the following steps:

[0036] Step S1: First, for the hyperspectral data, in order to make the input data smoother, it is normalized and preprocessed so that the value range of the hyperspectral data set is between 0 and 1.

[0037] The normalized preprocessing formula described therein is as follows:

[0038] x ij =x ij * / max(X) (1)

[0039] where x ij * Represents a piece of data in the hyperspectral data set, and max() represents the largest data in the hyperspectral data set.

[0040] Step S2: setting several different neighborhood window scales; the neighborhood window scales are 3, 5, 7, 9, 2n+1 respectively. where denotes the nth neighborhood window.

[0041] Step S3: Pass the original hyperspectral data through a neighborhood window g of a certain scale, and use a weighted mean filter to perform noise reduction and edge extraction features on t...

Embodiment 2

[0068] Based on the hyperspectral image classification method described in Embodiment 1, this embodiment also provides a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the processor executes Follow the steps below:

[0069] S1: Perform normalized preprocessing on the hyperspectral data, so that the value range of the hyperspectral data set is between 0 and 1;

[0070] S2: Set the scale of several different neighborhood windows

[0071] S3: Pass the original hyperspectral data through a neighborhood window g of a certain scale, and use a weighted mean filter to perform noise reduction and edge extraction features on the image;

[0072] S4: pass the original hyperspectral data through a neighborhood window g of a certain scale, obtain the attribute profile of the hyperspectral image, and obtain the extended multi-attribute profile of the hyperspectral image, and then use a weighted mean filter to reduce noi...

Embodiment 3

[0076] A computer device, comprising a memory and a processor, the memory stores a computer program, and when the computer program is executed by the processor, the processor performs the following steps:

[0077] S1: Perform normalized preprocessing on the hyperspectral data, so that the value range of the hyperspectral data set is between 0 and 1;

[0078] S2: Set the scale of several different neighborhood windows

[0079] S3: Pass the original hyperspectral data through a neighborhood window g of a certain scale, and use a weighted mean filter to perform noise reduction and edge extraction features on the image;

[0080] S4: pass the original hyperspectral data through a neighborhood window g of a certain scale, obtain the attribute profile of the hyperspectral image, and obtain the extended multi-attribute profile of the hyperspectral image, and then use a weighted mean filter to reduce noise and smooth the hyperspectral Homogeneous regions in the image, using weighted e...

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Abstract

The invention discloses a hyperspectral image classification method. The method comprises the following steps: S1, normalizing hyperspectral data; s2, setting scales of a plurality of different neighborhood windows; s3, performing noise reduction and edge feature extraction on the original hyperspectral data by using a weighted mean filter; s4, acquiring an attribute contour of the hyperspectral image, acquiring an extended multi-attribute contour of the hyperspectral image, reducing noise and smoothing a homogeneous region in the hyperspectral image by using a weighted mean filter, and performing feature extraction by using the weighted extended multi-attribute contour; s5, performing feature fusion on the features obtained in the S3 and the S4 to obtain a composite feature, thereby obtaining a multi-scale composite feature; and S6, classifying the multi-scale composite features obtained in the step S5 as inputs of an extreme learning machine, and combining classification results of different scales into a finally generated optimal result by adopting decision fusion and using a multi-vote election system.

Description

technical field [0001] The present invention relates to the technical field of image processing, and more specifically, to a hyperspectral image classification method, storage medium and computer equipment. Background technique [0002] Hyperspectral image is a kind of data information with three-dimensional structural characteristics. Compared with traditional two-dimensional image, hyperspectral remote sensing image has the advantages of large amount of information and high spectral resolution, which makes the ability to describe and distinguish the types of ground features more effective. It has been greatly improved, which in turn provides a greater possibility for the accurate processing and analysis of ground object spectral information. The hyperspectral remote sensing system has occupied an important position in the advanced earth observation remote sensing systems of many countries around the world, and has become a new force in the observation of land, ocean and at...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G06K9/00G06K9/40G06K9/46G06K9/62
CPCG06V20/194G06V20/13G06V10/30G06V10/44G06F18/254G06F18/259Y02A40/10
Inventor刘枚壮杨志景叶街林
OwnerGUANGDONG UNIV OF TECH