Method for reconstructing curved surface of complex space

A technology of surface reconstruction and space, applied in image data processing, 3D modeling, instruments, etc., can solve problems such as surface reconstruction of complex geological structures, and achieve the effect of ensuring fast processing and ensuring accuracy

Inactive Publication Date: 2011-10-19
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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Problems solved by technology

[0021] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a method for surface reconstruction in complex spaces, whic

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  • Method for reconstructing curved surface of complex space
  • Method for reconstructing curved surface of complex space
  • Method for reconstructing curved surface of complex space

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[0064] First define some basic geological structures and terms of this plan:

[0065] Horizon: refers to a specific position in the stratigraphic sequence. The stratum level can be the boundary of the stratigraphic unit, or it can be a marker layer belonging to a specific era.

[0066] Fault: A structure in which the crustal rock layer is broken due to a certain strength and has obvious relative movement along the fracture surface is called a fault.

[0067] Vertical fault: A fault with a small distance.

[0068] Gridization: The discrete point data is logically divided to form a regular logical grid, which is convenient for layer interpolation.

[0069] Interpolation: The process of using known points to calculate unknown points.

[0070] Fitting: A process of using the data after the level interpolation is completed to form the level.

[0071] Such as image 3 As shown, a surface reconstruction method in a complex space includes the following steps:

[0072] The first step, raw fau...

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Abstract

The invention discloses a method for reconstructing curved surface of complex space that solves the layered curved surface reconstruction problem existed in the complex geologic structure of three-dimensional geological modeling by adopting complex space curved surface interpolation method and provides new ideas for the isoline drawing and geological block forming. The invention has the advantages that: the method solves the layer interpolation problem existed in the complex geologic structure, not only supports the positive and reverse faults as well as the vertical fault, but also is suitable for the multiple applications of geologic modeling; by adopting the layer fitting under the limitation of the polygonal borders of the faults, the seamless fitting of the layers and the faults is realized and the difficult problem that a conventional grid interpolation scheme layer position cannot be strictly crossed with the faults is solved; and by adopting the method of mixing with the grid layer interpolation, the method not only ensures the fast data treatment, but also ensures the fitting precision.

Description

technical field [0001] The invention relates to a method for reconstructing curved surfaces in complex spaces. Background technique [0002] Space surface reconstruction is widely used in various scientific research and engineering design such as CAD, computer graphics, meteorology and exploration. Due to the irregularity of the surface and the lack of clear rules and disorder of the scattered data, it is difficult to express the surface in a single mathematical form, so the interpolation method is generally used to reconstruct the surface. Space surface reconstruction uses computer technology to perform surface interpolation, thereby approximately restoring the real surface. Its essence is to use three-dimensional discrete points to fit the surface. [0003] Spatial surface reconstruction has important applications in the editing and display of unstructured data such as geological exploration data, logging data and reservoir data. In the field of geological exploration, t...

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Application Information

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IPC IPC(8): G06T17/05
Inventor 鲁才陈凯云胡光岷
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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