Surface coverage continuous change detection method taking change process into consideration
A technology for surface coverage and change detection, which is applied in the field of remote sensing information processing to achieve good detection results
Active Publication Date: 2018-11-23
FUZHOU UNIV
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Problems solved by technology
Although a few land cover change detection technologies based on time-series remote sensing data such as CCDC can detect multiple land cover changes at the same time, CCDC requires data-driven and Sin()-based model assumptions may not be suitable for describing the annual change characteristics of all land cover types
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[0042] The present invention will be further described below in conjunction with the drawings and embodiments.
[0043] It should be pointed out that the following detailed descriptions are all illustrative and are intended to provide further explanations for the application. Unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.
[0044] It should be noted that the terms used here are only for describing specific implementations, and are not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate There are features, steps, operations, device...
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The invention relates to a surface coverage continuous change detection method taking a change process into consideration. The method comprises the steps of firstly establishing vegetation index timesequence data; establishing a vegetation kurtosis time sequence curve chart for representing the surface coverage change process; carrying out model fitting on a vegetation kurtosis time sequence curve by utilizing a Logistic model; setting the surface change process as a sudden change type, a gradual change type and a stable type according to Logistic model parameters; and for two surface changeprocesses of the sudden change type and the gradient change type, in combination with a vegetation kurtosis change amount, establishing the surface coverage continuous change detection technology process method considering the surface change process. According to the method, the surface change process is fully considered; the model parameters reflecting the change process are brought into surfacecoverage change region extraction; and the method has the advantages of being good in space-time continuity, high in robustness, relatively high in automation degree and the like.
Description
Technical field [0001] The invention relates to the field of remote sensing information processing, in particular to a method for detecting continuous changes in surface coverage considering the change process. Background technique [0002] Land is the most basic natural resource for the survival and development of human beings and other animals and plants. With the rapid population growth and the acceleration of urbanization, various human land uses have led to earth-shaking changes in land cover, which has also caused a series of resource and ecological environmental problems. If urbanization occupies a large amount of high-quality arable land, whether the red line of arable land can be effectively protected to ensure food security is a serious problem. Changes in the global environment caused by changes in land cover have become an important part of global changes. Quick and accurate access to information on changes in land cover is essential for natural resource management ...
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IPC IPC(8): G06F17/50
CPCG06F30/20Y02A90/10
Inventor 邱炳文燕雄飞
Owner FUZHOU UNIV