A three-dimensional isosurface extraction and quantification method and system for aviation emissions

By using three-dimensional voxel meshes and cubic Hermite interpolation, combined with local gradient information, the problems of insufficient geometric accuracy and depth quantization of three-dimensional spatial structures in aviation emission analysis were solved. This enabled high-precision reconstruction of three-dimensional emission fields and simultaneous extraction of multi-level emission regions, improving the accuracy and visualization capabilities of emission modeling.

CN120851340BActive Publication Date: 2026-05-08UNIV OF JINAN
2 Cites 0 Cited by

Patent Information

Application Number
CN202510754126.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-06-06
Publication Date
2026-05-08
Estimated Expiration
2045-06-06

AI Technical Summary

Technical Problem

Existing aviation emission analysis technologies suffer from insufficient geometric accuracy, limited structural identification, and lack of in-depth quantification in terms of three-dimensional spatial structure reconstruction and quantification. In particular, they are unable to accurately reflect the spatial boundaries of rapidly changing emissions in high gradient regions, and lack the ability to visualize the structured correlation and linkage between multi-level isosurfaces.

Method used

The method employs a three-dimensional voxel mesh construction and cubic Hermite interpolation, combined with local gradient information for interpolation calculations. A multi-threshold control mechanism is used to extract three-dimensional isosurfaces and calculate the geometric parameter features of the isosurfaces, such as surface area, volume, average curvature, and average height. This supports the simultaneous extraction and hierarchical modeling of multi-level emission regions.

Benefits of technology

It achieves high-precision three-dimensional emission field reconstruction, ensures the continuity and morphological accuracy of isosurfaces, supports the synchronous extraction and hierarchical modeling of multi-level emission regions, provides a systematic emission characteristic index system, and improves the interpretability and evaluation capability of emission modeling results.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The application discloses a three-dimensional isosurface extraction and quantification method and system for aviation emissions, comprising obtaining flight trajectory data, constructing a three-dimensional voxel grid, mapping emission data to corresponding spatial voxels, and then constructing a three-dimensional emission field; the three-dimensional emission field is divided into a plurality of voxel blocks, the local state code of the voxel block is obtained, the edge set in the voxel block crossed by the isosurface is determined according to the local state code; the intersection position of the edge and the isosurface is calculated, and a three-dimensional isosurface grid is obtained; the minimum value and the maximum value of the emission field are obtained according to the three-dimensional emission field, and the emission threshold is determined, each emission threshold corresponds to an isosurface of the emission; the geometric parameter characteristics of the isosurface are calculated. The application aims to solve the problems of insufficient geometric accuracy, single structure recognition and lack of depth quantification in the prior art.
Need to check novelty before this filing date? Find Prior Art