A method, system, device and storage medium for monitoring land cover change
A land cover and change monitoring technology, applied in the field of geographic information technology, can solve the problems of limited quality of change monitoring results, limited technical level, heavy workload, and low efficiency of interpreters, so as to improve monitoring resolution, monitoring efficiency, and analysis effect. detailed effect
Active Publication Date: 2021-02-09
广东国地规划科技股份有限公司 +1
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At present, remote sensing images are widely used in land cover change monitoring due to their short acquisition time and wide coverage. However, they are limited by traditional monitoring methods. In terms of monitoring methods, traditional monitoring methods mainly use manual visual interpretation , not only the workload is heavy and the efficiency is low, but also the quality of change monitoring results is limited by the technical level of the interpreters
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[0056] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings:
[0057] refer to figure 1 , the present embodiment provides a land cover change monitoring method, comprising the following steps:
[0058] S1. Fusion processing SAR data and multi-spectral data to obtain a fusion image;
[0059] In this embodiment, when monitoring is required, the SAR data and multispectral data within the land cover change monitoring time period (in years) must be obtained first, and geocoding, filtering and denoising, unified coordinates, unified resolution, and de-noising are performed. Data preprocessing such as cloud processing and calculation of normalized vegetation index; then the preprocessed data is trained through a preset deep stacked convolutional neural network, and the trained deep stacked convolutional neural network is used to perform high and low frequency images. Finally, the decomposed high-frequency im...
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The invention discloses a land cover change monitoring method, system and device and a storage medium, and the method comprises the steps: fusing SAR data and multispectral data to acquire obtaining afusion image; performing parameter calculation on a fused image to obtain image parameters; and performing change monitoring through a preset land cover dynamic change monitoring model according to the fused image and the image parameters to obtain a land cover change result. The SAR data and the multispectral data are fused, the fused image machine is subjected to change monitoring through the land cover dynamic change monitoring model, all-weather characteristics and texture characteristics can be obviously combined, spectral characteristics can also be combined, the analysis effect is finer, and the monitoring resolution and the monitoring efficiency are greatly improved. The invention can be widely applied to the field of land monitoring.
Description
technical field [0001] The invention relates to the technical field of geographic information technology, in particular to a method, system, device and storage medium for monitoring land cover changes. Background technique [0002] Land cover change monitoring is the process of determining the change monitoring of the surface cover objects in the same spatial area and the spatial phenomena observed at different times, and extracting and describing the object changes over time based on geographic information data or remote sensing images in different periods. The country's land policy and land measures must rely on timely, effective and accurate land data, which requires dynamic monitoring of land use status management. At present, in the daily land management, the management department mainly uses the data reported by lower-level departments, reported by the land use unit or registered to passively learn about the changes, lacking initiative. At present, remote sensing imag...
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IPC IPC(8): G06T7/00G06T7/33G06T5/50
CPCG06T5/50G06T7/0002G06T2207/10032G06T2207/10036G06T2207/20081G06T2207/20084G06T2207/20221G06T2207/30184G06T7/33
Inventor 张鸿辉罗伟玲吴灿熊元康洪良张恒崔学森
Owner 广东国地规划科技股份有限公司