Hyperspectral image river detection method

A hyperspectral image and detection method technology, which is applied in the field of computer-readable storage media and hyperspectral image river detection, can solve the problems of target confusion, large amount of calculation, and increased detection difficulty, so as to improve calculation efficiency and robustness of the method performance, improve detection capability, and simplify calculation difficulty

Inactive Publication Date: 2020-02-14
BEIJING INST OF ENVIRONMENTAL FEATURES
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Problems solved by technology

Due to the long imaging distance and low imaging quality of hyperspectral images, the targets in the images are easily confused with other interference information such as the background, making detection more difficult
[0003] At present, river detection methods mainly use river edge information or complex mathematical models such as snake or genetic models to extract rivers, which requires a large amount of calculation and low efficiency.
In addition, remote sensing image target detection often uses fusion methods, but most of the fusion methods are to fuse different types of raw data, or to fuse a large number of processing results at the decision-making level, and the number of hyperspectral images is relatively large. less and poor imaging quality, it is difficult to obtain more accurate detection results through existing fusion methods

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  • Hyperspectral image river detection method

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[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. 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.

[0046] Such as figure 1 As shown, a hyperspectral image river detection method provided by an embodiment of the present invention includes the following steps:

[0047] S1. Input a hyperspectral image.

[0048] Preferably, the hyperspectral image input in step S1 is a hyperspectral image subjected to dimensionality reduction processing, or ...

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Abstract

The invention relates to the technical field of remote sensing image processing, in particular to a hyperspectral image river detection method, computer equipment and a computer readable storage medium. The hyperspectral image river detection method includes the steps: inputting a hyperspectral image; filtering the hyperspectral image; decomposing the image, and calculating shear wave characteristics under different scales and different directions; normalizing all the shear wave characteristics, and calculating the standard deviation of each shear wave characteristic; selecting two shear wavefeatures with the maximum standard deviation under each scale for summation, and obtaining a feature image of the river; performing adaptive threshold segmentation on the feature image to obtain a binary image; and taking the binary image as an active contour model template, and performing river detection by using the active contour model to obtain a river detection result. According to the hyperspectral image river detection method, the use of edge information and learning methods is avoided, and the problem of difficult river target detection under a small sample is solved, and the detectioncapability of a river false alarm source can be significantly improved, and the calculation efficiency is improved at the same time.

Description

technical field [0001] The invention relates to the technical field of remote sensing image processing, in particular to a hyperspectral image river detection method, computer equipment and a computer-readable storage medium. Background technique [0002] Hyperspectral images have a wide range of applications, such as security monitoring, geographic information system updates, environmental detection, etc. Therefore, the extraction of different types of targets in hyperspectral images has become a research hotspot in recent years, and the extraction of rivers is one of them. question. Due to the long imaging distance and low imaging quality of hyperspectral images, the targets in the images are easily confused with other interference information such as the background, which makes detection more difficult. [0003] At present, river detection methods mainly use river edge information or complex mathematical models such as snake or genetic models to extract rivers, which req...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V20/194G06V20/182
Inventor 董晓刚彭真明毛宏霞王俊刘铮贾雨生
Owner BEIJING INST OF ENVIRONMENTAL FEATURES
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