A method for generating 3D terrain and radar terrain based on s-57 electronic chart data

A technology for electronic charts and three-dimensional terrain, applied in image data processing, electrical digital data processing, special data processing applications, etc., can solve problems such as increased hardware requirements, data differences, rough description of land terrain elevation data, etc., to ensure operation Efficiency and realism, effects that improve precision

A technology for electronic charts and three-dimensional terrain, applied in image data processing, electrical digital data processing, special data processing applications, etc., can solve problems such as increased hardware requirements, data differences, rough description of land terrain elevation data, etc., to ensure operation Efficiency and realism, effects that improve precision

CN103456041BInactive Publication Date: 2016-06-22PLA DALIAN NAVAL ACADEMY
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  • A method for generating 3D terrain and radar terrain based on s-57 electronic chart data
  • A method for generating 3D terrain and radar terrain based on s-57 electronic chart data
  • A method for generating 3D terrain and radar terrain based on s-57 electronic chart data

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0041] Taking the terrain model data from the Jiangyin Bridge of the Yangtze River Channel to the Changjiang Estuary section as an example, the specific implementation of the three-dimensional terrain and radar terrain generation method based on the S-57 electronic chart data of the present invention is as follows:

[0042] First, install the following software on your computer:

[0043] 1) GlobalMapper11;

[0044] 2) 3DMax7 and PloyTrans plug-ins;

[0045] 3) Multigen Creator 3.0.

[0046] 1 Unified data source generation

[0047] 1.1 Raw data extraction

[0048] Based on the source data of the electronic chart, the GIS software GlobalMapper is used to extract the elevation information of the chart, which mainly includes coastlines, contour lines, isobaths, and sounding points. Import the GDEM data into GlobalMapper, correct the GDEM data accordin...

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Abstract

The invention provides a method for generating three-dimensional terrain and radar terrain based on S-57 electronic chart data. First, based on the S-57 electronic chart data and GDEM data, an electronic chart-based elevation vector diagram is generated as a unified data source; Secondly, the elevation vector map is transformed, simplified and textured to generate a 3D terrain model of the scene; finally, on the basis of the elevation vector image, by cutting the data, the radar terrain data is generated and completed at different sampling intervals as needed. Extraction of water depth data and navigation target data. The invention overcomes the deficiencies of inconsistent data matching, low precision and poor operation efficiency of the existing terrain model data; integrates the three-dimensional terrain data generation technology, the GPS positioning technology and the GIS geographic information technology, while ensuring the operation efficiency and fidelity of the three-dimensional visual scene, Accurate matching of visual 3D terrain data, radar terrain, water depth data and navigation object data with electronic charts is realized.

Description

technical field [0001] The invention relates to a method for generating three-dimensional topography and radar topography, in particular to a method for generating three-dimensional topography and radar topography for navigation simulators based on large-scale and high-precision matching of S-57 electronic chart data. Background technique [0002] In recent years, with the continuous development of the application of virtual reality technology, it has been successfully applied in urban construction, education, e-commerce, military industry and other fields. Among them, domestic scientific research institutions and colleges have independently developed a ship manipulation simulator with three-dimensional vision, which has played an important role in crew training and port and navigation design demonstrations. [0003] In the development and application of the virtual reality technology of the ship maneuvering simulator, the data extraction of 3D visual terrain, radar terrain,...

Claims

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Application Information

Patent Timeline
22 Jun 2016
Publication
CN103456041B
IPC
G06T17/05; G06F17/50
Inventors
宋元; 牛海