Geological surface three-dimensional reconstruction method based on sparse profile geological contours

A technology of 3D reconstruction and contour lines, which is applied in 3D modeling, image data processing, instruments, etc., to achieve high efficiency, simple calculation, and the effect of solving the problem of excessive grid size.
CN106530397AActive Publication Date: 2017-03-22CHENGDU XIMENG TEKE TECH DEV CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
CHENGDU XIMENG TEKE TECH DEV CO LTD
Publication Date
2017-03-22

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Abstract

The invention discloses a geological surface three-dimensional reconstruction method based on sparse profile geological contours. The method comprises the following steps: S1) calculating the lengths of the geological contours: calculating the overall length of each geological layer contour on each profile; S2) calculating the sampling points: sampling the points of all contours belonging to the same geological layer; S3) constructing corresponding point sets: determining corresponding points for all contours belonging to the same geological layer in an order to obtain the corresponding matrix for each geological layer; S4) conducting interpolation to the corresponding point sets among the layers: conducting linear interpolation to the corresponding point matrixes on all contours belonging to the same geological layer; S5) performing three-dimensional construction: connecting the connection line for the adjacent points of each corresponding matrix; and performing classification and construction according to the constructed multiple deformation conditions. The method of the invention solves the problem that in the prior art, the three-dimensional construction method does not consider the specialty of geological prospecting data, which causes problems with large numbers of long triangles, triangular facets self-intersecting, and non-manifold.
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Description

technical field

[0001] The invention relates to a three-dimensional reconstruction technology of a geological surface based on sparse section geological contour lines. Background technique

[0002] There are many existing 3D reconstruction methods based on profile data, but when used for 3D reconstruction of geological surfaces with sparse profile geological contours, the performance is not ideal, and there will be a large number of long triangles, self-intersection and non-manifold problems. The main reason is that the particularity of geological profile data collection, such as too long profile distance, complex and changeable geological strata, resulting in poor effect of reconstructed geological plane, thus affecting the accuracy and precision of geological plane reconstruction, thus affecting Accuracy and reliability of subsequent 3D reconstructions of geological models. Therefore, how to solve the accuracy and precision of geological surface 3D reconstruction of spars...

Claims

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