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ZY-3 image-based shallow lake seine zone extraction method

A ZY-3, extraction method technology, applied in the field of remote sensing applications, can solve the problem of time-consuming and laborious

Active Publication Date: 2016-08-31
NANJING INST OF GEOGRAPHY & LIMNOLOGY
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Problems solved by technology

[0003] At present, the extraction method of seine is still using manual statistics and manual interpretation of remote sensing images, which is time-consuming and laborious, and it is impossible to obtain real-time and dynamic information on the distribution and area of ​​the seine area

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  • ZY-3 image-based shallow lake seine zone extraction method
  • ZY-3 image-based shallow lake seine zone extraction method
  • ZY-3 image-based shallow lake seine zone extraction method

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Embodiment Construction

[0020] specific implementation

[0021] Aspects of the invention are described in this disclosure with reference to the accompanying drawings, which show a number of illustrated embodiments. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of numerous ways, since the concepts and embodiments disclosed herein are not limited to any implementation. In addition, some aspects of the present disclosure may be used alone or in any suitable combination with other aspects of the present disclosure.

[0022] combine figure 1 As shown, according to an embodiment of the present invention, a method for quickly extracting lake fenced area based on ZY-3 (i.e. ZY-3 satellite) image comprises the following steps:

[0023] Step 1. Obtain the image of ZY-3 in the study area an...

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Abstract

The invention brings forward a ZY-3 image-based shallow lake seine zone extraction method comprising the following steps: ZY-3 images of a research area are obtained and are subjected to image pre-processing operation; according to the pre-processed images, a typical seine sample database is chosen; the pre-processed images are subjected to gradient transformation operation; based on the transformed images, mean value and variance of seine sample zones are calculated; a seine zone threshold value is determined according to the mean value and the variance of the seine sample zones, and a seine zone is preliminarily extracted; a seine zone extracting result is optimized; optimization operation comprises operation of removing salt and pepper noise parts and low frequency parts and operation of removing broken spots; geometry characteristics of the seine zone are calculated, interpreted distribution and area of the seine zone are used as reference, and the extraction result is subjected to precision verify operation. Via use of the extraction method disclosed in the invention, a seine can be rapidly extracted in real time in a large scope and high precision manner, a data foundation is provided for further researching relations between shallow lake seine area and water environment, and basis is provided for making a water quality optimizing and lifting solution.

Description

technical field [0001] The invention belongs to the field of remote sensing applications and relates to a remote sensing extraction method for shallow water lake enclosure areas. Background technique [0002] Seine aquaculture in shallow lakes can achieve higher economic benefits, but high-density seine aquaculture in shallow lakes will aggravate the eutrophication process of shallow lakes. Therefore, the reasonable and scientific planning and control of lake seines has been listed as the key work of lake water quality improvement and optimization by the lake management department, and obtaining and mastering the information on the aquaculture area and spatial distribution of lake seines is of great importance for rational planning and control of seines. Guidance and practical significance. [0003] At present, the extraction method of seine is still using manual statistics and manual interpretation of remote sensing images, which is time-consuming and laborious, and it is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T5/00G06T7/60
CPCG06T2207/10032G06T2207/20048G06T2207/20032G06T5/70
Inventor 罗菊花马荣华黄帅李飞
Owner NANJING INST OF GEOGRAPHY & LIMNOLOGY
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