Surface environment change monitoring method and device, readable storage medium and equipment

A technology of environmental change and monitoring devices, applied in the field of remote sensing, can solve problems such as difficult and accurate detection, insufficient pertinence and operating efficiency, and destruction of ecological conservation forests, and achieve targeted, fast and accurate results

Active Publication Date: 2021-10-19
MINISTRY OF ECOLOGY & ENVIRONMENT CENT FOR SATELLITE APPL ON ECOLOGY ENVIRONMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing methods focus on the construction of change monitoring operators. Usually, the same set of change monitoring operators is used to comprehensively extract multiple change types, which often results in some change types being covered up by other pseudo changes, making it difficult to

Method used

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  • Surface environment change monitoring method and device, readable storage medium and equipment
  • Surface environment change monitoring method and device, readable storage medium and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] An embodiment of the present invention provides a method for monitoring changes in the surface environment, such as figure 1 As shown, the method includes:

[0043] S1: Obtain the annual NDVI time-series remote sensing images of the base year and monitoring year of the study area, as well as the land use type data of the base year; where, the annual NDVI time-series remote sensing images are from the beginning of the base year / monitoring year to the end of the year according to a certain time step interval Acquired multi-phase NDVI images.

[0044] This step is used for basic data preparation. In actual implementation, multi-period NDVI images can be obtained every 8 days or every day. When the land use type data of the base year cannot be obtained, the land use of years similar to the base year can be obtained. type data.

[0045] S2: The annual NDVI time-series remote sensing images of the base year and the monitoring year were combined into multi-band images accord...

Embodiment 2

[0070] An embodiment of the present invention provides a surface environment change monitoring device, such as figure 2 As shown, the device includes:

[0071] Data preparation module 1 is used to obtain the annual NDVI time-series remote sensing images of the base year and monitoring year of the study area, as well as the land use type data of the base year; wherein, the annual NDVI time-series remote sensing images are from the beginning of the base year / monitoring year to the end of the year according to Multi-phase NDVI images acquired at certain time step intervals.

[0072] The data preprocessing module 2 is used to combine the annual NDVI time-series remote sensing images of the base year and the monitoring year into multi-band images according to the imaging time sequence, and obtain the NDVI time-series images of the base year and the monitoring year.

[0073] The NDVI time-series curve acquisition module 3 is used to perform spatial overlay analysis on the NDVI tim...

Embodiment 3

[0086] The method described in the above-mentioned embodiment 1 provided by the present invention can implement business logic through a computer program and record it on a storage medium, and the storage medium can be read and executed by a computer to achieve the effect of the solution described in embodiment 1 of this specification. Therefore, the present invention also provides a computer-readable storage medium for monitoring changes in the surface environment, including a memory for storing processor-executable instructions. When the instructions are executed by the processor, the steps of the method for monitoring changes in the surface environment comprising Embodiment 1 are realized. .

[0087] The storage medium may include a physical device for storing information, and information is usually digitized and then stored using an electrical, magnetic, or optical medium. Described storage medium can include: the device that utilizes electric energy mode to store informat...

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Abstract

The invention discloses a surface environment change monitoring method and device, a readable storage medium and equipment, and belongs to the technical field of remote sensing. The method comprises the steps of: obtaining time sequence NDVI remote sensing image data and land utilization type data; according to the land utilization type data, obtaining an average NDVI time sequence curve of each land utilization type; calculating the similarity between each pixel on the NDVI annual time sequence image and each land utilization type; setting specific surface environment type transformation scenes in two years, and calculating the sum of the similarity of one class of the reference year and the similarity of the other class of the monitoring year; and carrying out threshold segmentation on a similarity sum result image, and extracting a region with a relatively large pixel value, so that a surface environment change region of a specific conversion type can be obtained. According to the method, the similarity is calculated for the specific land surface environment type, specific target features and change features are highlighted to the maximum extent, specific land change types are rapidly and accurately extracted in a targeted mode, and technical support is provided for ecological environment supervision.

Description

technical field [0001] The invention relates to the technical field of remote sensing, in particular to a method, device, readable storage medium and equipment for monitoring changes in the surface environment. Background technique [0002] Human activities often cause changes in the surface ecological environment, especially activities such as deforestation, lake reclamation, and illegal reclamation and construction have adverse effects on the ecological environment and global climate change. It is very important for the ecological environment management department to timely and accurately obtain the change status of the surface ecological environment and take timely response measures to abnormal changes. [0003] At present, the change monitoring method based on time-series remote sensing images has become an important means of surface environment change monitoring. However, the existing methods focus on the construction of change monitoring operators. Usually, the same s...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCY02A90/10
Inventor 殷守敬韩杏杏乐松王楠孟斌杨一帆李营肖如林王庆涛周亚明杨红艳邵圆圆赵乾王东红徐丹周子牧
Owner MINISTRY OF ECOLOGY & ENVIRONMENT CENT FOR SATELLITE APPL ON ECOLOGY ENVIRONMENT
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