Water body recognition method and device, electronic equipment and storage medium
A recognition method and water body technology, applied in the computer field, can solve the problem of low accuracy of water body recognition
Active Publication Date: 2021-09-03
BEIJING AEROSPACE HONGTU INFORMATION TECH
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[0003] The purpose of the embodiments of the present application is to provide a water body identification method, device, electronic equipment and storage medium, aiming to solve the current problem of low water body identification accuracy
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[0061] The technical solution in the present application embodiment will be described below in conjunction with the drawings in the present application embodiment.
[0062] It should be noted that similar reference numerals and letters represent the like items in the drawings below, and therefore, once one is defined in one bysertation, it is not necessary to further define and explain it in the following drawings. Meanwhile, in the description of this application, the term "first", "second", etc. is used only for distinguishing description, and cannot be understood as an indication or implies relative importance.
[0063] As described in the related art, for a high resolution image, using the thresholding method or a machine learning classification feature space, implemented on integrated water use monitoring spectral or spatial characteristics. Wherein a common threshold segmentation process is separated between water and non-water through the global threshold over the entire sc...
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The invention provides a water body identification method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring a target image data set of a target geographic area and first vector data containing a water body mask; according to the target image data set, determining a normalized difference water body index NDWI image data set and a near-infrared band NIR image data set; for each remote sensing image in the target image data set, performing spatial superposition on the remote sensing image and the first vector data, and determining second vector data and third vector data in the first vector data; and according to the second vector data and the third vector data, identifying water body data of the NDWI image data set and the NIR image data set to obtain water body data of the target geographic area. According to the embodiment of the invention, background environment interference and problem complexity are reduced by using the water body mask, the water body is identified by using reverse expressions of the water body on the NDWI and the NIR, and the water body identification precision and efficiency are improved.
Description
Technical field [0001] The present application relates to the technical field of computer, and in particular, there is a water recognition method, device, electronic device, and storage medium. Background technique [0002] At present, water monitoring based on remote sensing imaging is an important means to identify water regions. For high-resolution images, the threshold segmentation method or machine learning classification method is used to realize water monitoring in feature space, integrated application spectrum or spatial characteristics. However, on the one hand, the threshold segmentation or machine learning classification method is developed for specific data and applications, and is relatively low in time and space, and engineering applications. On the other hand, the spatial resolution of high-resolution satellite images is high, but the spectral information is relatively insufficient, only blue, green, red, near infrared range of 4 bands, there is a shadow of clouds,...
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IPC IPC(8): G06K9/00G01N21/84
CPCG01N21/84
Inventor 屈洋旭王宇翔关元秀田静国容俊范磊黄非杜烨
Owner BEIJING AEROSPACE HONGTU INFORMATION TECH