Generation method and device of digital elevation model and computer readable storage medium

A technology of digital elevation model and digital surface model, which is applied in the field of image processing, can solve the problems that the accuracy of digital elevation model needs to be improved, and achieve the effect of improving judgment accuracy and improving accuracy

Pending Publication Date: 2022-04-22
ZHEJIANG DAHUA TECH CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

The inventors of the present application found that the accuracy of digital elevation models in the prior art needs to be improved

Method used

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  • Generation method and device of digital elevation model and computer readable storage medium
  • Generation method and device of digital elevation model and computer readable storage medium
  • Generation method and device of digital elevation model and computer readable storage medium

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0020] refer to figure 1 , figure 1 It is a schematic flow chart of an embodiment of a method for generating a digital elevation model of the present application, and the method includes:

[0021] S110: Acquire a target image of the target area.

[0022] Wherein, the target image of the target area may be a remote sensing image, an RGB color image, or another type of image, which is not limited here.

[0023] S120: Generate a digital surface model of the ta...

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Abstract

The invention discloses a digital elevation model generation method and device and a computer readable storage medium. The generation method comprises the following steps: acquiring a target image of a target area; generating a digital surface model of the target area according to the target image; filtering the digital surface model to obtain a digital smooth model; according to the digital surface model and the digital smoothing model, the category of each pixel point in the target image is determined, and the category of the pixel point comprises one of a ground point and a non-ground point; and generating a digital elevation model of the target area according to the digital surface model and the category of each pixel point. According to the generation method provided by the invention, the accuracy of generating the digital elevation model can be improved.

Description

technical field [0001] The present application relates to the technical field of image processing, in particular to a method, device and computer-readable storage medium for generating a digital elevation model. Background technique [0002] Digital Elevation Model (DEM, Digital Elevation Model) refers to a data set of plane coordinates and elevations of regular grid points within a certain range. It mainly describes the spatial distribution of regional landforms and is a virtual representation of landforms. The digital elevation model only contains the elevation information of the terrain and does not contain other surface information. Since the digital elevation model describes the ground elevation information, it is widely used in the fields of national economy and humanities and natural sciences such as surveying and mapping, hydrology, meteorology, geology, military and engineering construction. The inventors of the present application found that the accuracy rate of d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/05
CPCG06T17/05
Inventor 任宇鹏汪均轶李乾坤殷俊
Owner ZHEJIANG DAHUA TECH CO LTD
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