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A Method for Recognition of Cloud Regions in Panchromatic Remote Sensing Images

A technology for remote sensing image and region recognition, applied in the field of remote sensing image processing, can solve problems such as difficulty in cloud feature extraction, achieve accurate recognition ability, high-precision segmentation, and reduce misjudgment effects.

Active Publication Date: 2022-04-22
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problem of difficult cloud feature extraction in panchromatic remote sensing images, the present invention provides a method for identifying cloud regions in panchromatic remote sensing images

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  • A Method for Recognition of Cloud Regions in Panchromatic Remote Sensing Images
  • A Method for Recognition of Cloud Regions in Panchromatic Remote Sensing Images
  • A Method for Recognition of Cloud Regions in Panchromatic Remote Sensing Images

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Embodiment Construction

[0036] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0037] A method for identifying cloud regions in panchromatic remote sensing images. This method adopts a filtering method that retains edge information to make cloud regions more uniform and effectively maintain the boundaries of cloud regions. Determine the segmentation threshold of the cloud region, and then use the region growing strategy of the moving average to more accurately identify thin clouds, broken clouds and other regions.

[0038] Such as figure 1 As shown, the method specifically includes the following steps:

[0039] Step 1, perform statistics on the image information, calculate the image grayscale histogram, divide the grayscale range into intervals by analyzing the image grayscale histogram, and calculate the geometric mean t of the standard deviations of all intervals;

[0040] Step 2, use the imp...

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Abstract

The invention discloses a cloud region recognition method of a panchromatic remote sensing image, which belongs to the technical field of remote sensing image processing. The present invention adopts the filtering method of retaining the edge information, which makes the cloud area more uniform and at the same time effectively maintains the boundary of the cloud area, effectively reduces the misjudgment of the cloud area, and uses the image histogram to divide the bands more accurately. Determine the segmentation threshold of the cloud region, and then use the region growing strategy of the moving average to more accurately identify thin clouds, broken clouds and other regions. The method of the invention is simple to operate, easy to realize, and has good applicability to various panchromatic images.

Description

technical field [0001] The invention belongs to the technical field of remote sensing image processing, and in particular relates to a method for identifying cloud regions of panchromatic remote sensing images. Background technique [0002] Remote sensing images, especially satellite remote sensing images, are greatly affected by clouds. According to statistics, there are nearly 60% cloud coverage areas in optical remote sensing images. Except for special application fields such as meteorological applications, in most remote sensing image application scenarios, the influence of cloud areas has no application value and needs to be removed in advance to reduce interference, calculation and storage. Therefore, the identification of cloud regions is of great significance to remote sensing image processing. [0003] Traditional remote sensing image cloud region identification methods are mainly for multi-spectral, hyperspectral images, etc. In these images, cloud regions have mo...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00G06T5/20G06T5/40G06T7/12G06T7/136
CPCG06T5/002G06T5/40G06T5/20G06T7/12G06T7/136G06T2207/10032
Inventor 孙康陈金勇李方方王敏帅通王士成
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP