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Hyperspectral image cloud detection method and device

A hyperspectral and cloud detection technology, applied in the field of image processing, can solve problems such as the complexity of hyperspectral image cloud detection methods, achieve the effect of solving the more complex cloud detection methods and improving efficiency and accuracy

Active Publication Date: 2020-11-27
BEIJING AEROSPACE HONGTU INFORMATION TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a hyperspectral image cloud detection method and device, to alleviate the relatively complex technical problems of the existing hyperspectral image cloud detection method

Method used

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  • Hyperspectral image cloud detection method and device

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Embodiment 1

[0028] According to an embodiment of the present invention, an embodiment of a hyperspectral image cloud detection method is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0029] figure 1 It is a flowchart of a cloud detection method for a hyperspectral image according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:

[0030] Step S102, acquiring a hyperspectral image to be detected;

[0031] Specifically, such as figure 2 as shown, figure 2 is the above hyperspectral image to be detected, wherein the lower left corner of the hyperspectral image to be detected is the main cloud coverage area.

[0...

Embodiment 2

[0095] The embodiment of the present invention also provides a hyperspectral image cloud detection device, the hyperspectral image cloud detection device is used to implement the hyperspectral image cloud detection method provided by the above content of the embodiment of the present invention, the following is the implementation of the present invention The specific introduction of the cloud detection device for the hyperspectral image provided by the example.

[0096] Such as Figure 5 as shown, Figure 5 It is a schematic diagram of the above-mentioned cloud detection device for hyperspectral imagery, the cloud detection device for hyperspectral imagery includes: an acquisition unit 10, a preprocessing unit 20, a first construction unit 30, a second construction unit 40 and a calculation unit 50, wherein,

[0097] The acquiring unit 10 is configured to acquire a hyperspectral image to be detected;

[0098] The preprocessing unit 20 is configured to preprocess the hyperspe...

Embodiment 3

[0104] An embodiment of the present invention also provides an electronic device, including a memory and a processor, the memory is used to store a program that supports the processor to execute the method described in the first embodiment above, and the processor is configured to execute the program stored in memory.

[0105] see Image 6 , the embodiment of the present invention also provides an electronic device 100, including: a processor 60, a memory 61, a bus 62 and a communication interface 63, the processor 60, the communication interface 63 and the memory 61 are connected through the bus 62; An executable module, such as a computer program, stored in the execution memory 61 .

[0106] Wherein, the memory 61 may include a high-speed random access memory (RAM, Random Access Memory), and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The communication connection between the system network element and at least one other n...

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Abstract

The invention provides a hyperspectral image cloud detection method and device, and relates to the technical field of image processing, and the method comprises the steps: obtaining a to-be-detected hyperspectral image; preprocessing the to-be-detected hyperspectral image to obtain an HSV color space of the to-be-detected hyperspectral image; constructing a suspected cloud mask image by utilizingan HSV color space and a cloud visual color feature analysis algorithm; constructing a cloud detection probability image based on the cloud physical spectral characteristics and the remote sensing index of the to-be-detected hyperspectral image. According to the method, the cloud identification result image is determined by using the suspected cloud mask image and the cloud detection probability image, and the cloud amount of the to-be-detected hyperspectral image is calculated by using the cloud identification result image, so that the technical problem that the existing hyperspectral image cloud detection method is relatively complex is solved.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a cloud detection method and device for hyperspectral images. Background technique [0002] According to the global cloud cover data provided by the International Satellite Cloud Climate Project (ISCCP) (International Satellite Cloud Climatology Project), clouds cover more than 50% of the earth's surface and account for a considerable proportion of geospatial information obtained by remote sensing. Clouds will hinder the radiative transmission between sensors and ground objects, making it very difficult to extract ground information or atmospheric information with high precision using hyperspectral data. The existence of a large number of clouds in optical remote sensing data affects the quality of remote sensing images, thereby reducing the data utilization of images. Therefore, cloud detection has become one of the most important problems to be solved in the process of...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V20/13
Inventor 田静国王宇翔苏旭边晓勇范磊黄非
Owner BEIJING AEROSPACE HONGTU INFORMATION TECH
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