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A method and system for extracting a check dam during water storage and mud retention period

An extraction method and check dam technology, applied in character and pattern recognition, instrument, scene recognition, etc., can solve the problems of poor efficiency of statistical methods, achieve the effect of saving manpower and material resources and improving statistical efficiency

Active Publication Date: 2019-08-30
水利部水土保持监测中心 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a method and system for extracting check dams during the water storage and mud retention period, so as to solve the problem of poor efficiency of the statistical method of manual field investigation

Method used

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  • A method and system for extracting a check dam during water storage and mud retention period
  • A method and system for extracting a check dam during water storage and mud retention period
  • A method and system for extracting a check dam during water storage and mud retention period

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Embodiment 1

[0054] figure 1 It is a flow chart of the steps of an embodiment of a method for extracting a check dam during water storage and mud retention period of the present invention.

[0055] refer to figure 1 As shown, the extraction method provided in this embodiment is used to extract the check dam in the water storage and mud retention period, and specifically includes the following steps:

[0056] S101: Extracting water body regions according to water body spectral features, spatial features and geometric features.

[0057] According to the analysis of remote sensing images, check dams are mostly distributed in the mountainous and hilly areas of the Loess Plateau in the north, and are built at the bottom of ditches; the water body of check dams has similar spectral characteristics to ordinary water bodies, but the water surface is smaller and more often grows. Strip shape, and the downstream of the water body is connected with the dam body. Therefore, according to the water b...

Embodiment 2

[0068] figure 2 It is a flow chart of the steps of another embodiment of the method for extracting a check dam during the storage and mud retention period of the present invention.

[0069] refer to figure 2 As shown, the extraction method provided in this embodiment is used to extract the check dam in the water storage and mud retention period, and specifically includes the following steps:

[0070] S201: Extract water body regions according to water body spectral features, spatial features and geometric features.

[0071] According to the analysis of remote sensing images, check dams are mostly distributed in the mountainous and hilly areas of the Loess Plateau in the north, and are built at the bottom of ditches; the water body of check dams has similar spectral characteristics to ordinary water bodies, but the water surface is smaller and more often grows. Strip shape, and the downstream of the water body is connected with the dam body. Therefore, according to the wat...

Embodiment 3

[0115] image 3 It is a structural block diagram of an extraction system embodiment of a check dam during water storage and mud retention period of the present invention.

[0116] refer to image 3 As shown, the extraction system provided in this embodiment is used to extract a check dam in the water storage and mud retention period, and specifically includes a water body extraction module 10 , a dam body frame module 20 and an information extraction module 30 .

[0117] The water body extraction module 10 is used for extracting water body regions according to water body spectral features, spatial features and geometric features.

[0118] According to the analysis of remote sensing images, check dams are mostly distributed in the mountainous and hilly areas of the Loess Plateau in the north, and are built at the bottom of ditches; the water body of check dams has similar spectral characteristics to ordinary water bodies, but the water surface is smaller and more often grows. ...

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Abstract

The embodiment of the present invention provides a method and system for extracting a check dam in the water storage and mud retention period. The method and system are used to extract the check dam in the water storage and mud retention period, specifically for processing remote sensing images, The water body region is extracted according to the water body spectral characteristics, spatial characteristics and geometric characteristics; the dam body location range is framed according to the spatial relationship between the water body and the dam body; the water body region and the dam body location range are superimposed and analyzed to obtain the check dam information. After obtaining the check dam information, the number and distribution of check dams in the predetermined census area can be obtained through a simple statistical method, without manual statistics and on-site investigation of construction data files, thus saving a lot of manpower and material resources. It can effectively improve the statistical efficiency.

Description

technical field [0001] The invention relates to the technical field of land survey and water conservancy survey, in particular to a method and system for extracting a check dam during water storage and mud retention period. Background technique [0002] Check dams refer to dam structures built for the purpose of retaining mud and silt in ditches at all levels in water and soil erosion areas, and the land formed by the mud retaining is called dam land. In the river basin channel, the dam used for check production is called check dam or production dam. The loess plateau area has a deep soil layer and widely distributed loess. It has the characteristics of uniform texture, loose structure, strong water permeability, easy disintegration, and fast dehydration and consolidation. It is a good dam material and can be obtained locally. The use of check dams to block mud and silt land can raise the base level of channel erosion, prevent and control soil erosion, flood detention, mud ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/32G06K9/46
CPCG06V20/13G06V20/194G06V10/25G06V10/44
Inventor 姜德文李智广赵院罗志东郭晓晓赵海雷曹刚郭浩
Owner 水利部水土保持监测中心