A Decryption and Restoration Method for Elevation Data
A technology of elevation data and recovery methods, applied in the field of geographic information security, can solve problems such as inaccuracy, inconsistent elevation data, and unfavorable use of geographic information data, and achieve the effect of improving the theory and method system and improving reliability.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0042] The present invention will be further described in detail below in conjunction with the drawings and embodiments.
[0043] In this embodiment, the shp format data storing the elevation information is selected, and the elevation data is read, decrypted, and restored to further explain the present invention in detail. This embodiment selects the elevation data of a certain area (such as image 3 ) As the original elevation data, including the following steps:
[0044] (1) Declassification process of elevation data
[0045] Step 11: Determine the densification transformation amount, input the total transformation amount of the elevation data sumpara=50, and the nonlinear transformation amount nonlinear=20.
[0046] Step 12: Determine the range of elevation data.
[0047] Open the original elevation data H and obtain the minimum bounding rectangle R. The coordinates of the lower left corner of R are (141577.585, 155000.146), and the coordinates of the upper right corner are (141998....
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com