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Presenting method of large scale three-D data set

A three-dimensional data, large-scale technology, applied in image data processing, 3D modeling, instruments, etc., can solve the problems of high system overhead, less application, low efficiency, etc., and achieve the effect of fast speed and convenient access.

Inactive Publication Date: 2007-05-02
BEIHANG UNIV
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Problems solved by technology

[0014] To sum up, the adjacent relationship of the hexahedron voxel in the midpoint of the space is well defined, but when the space density is high, the required system overhead is very large and the efficiency is very low; the information of the tetrahedron voxel is convenient to express and easy to Management, easy storage, clear relationship between voxels, but in the case of large and dense point set data, it brings more additional storage than hexahedron voxels; triangular prism voxels are based on the relationship between tetrahedron and hexahedron , but fewer applications

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  • Presenting method of large scale three-D data set
  • Presenting method of large scale three-D data set
  • Presenting method of large scale three-D data set

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[0037] Since the object to be represented is a large-scale three-dimensional data set describing a three-dimensional body, it is first necessary to effectively describe the three-dimensional volume data space, so, as shown in Figure 1, the representation method of the large-scale three-dimensional data set disclosed by the present invention is:

[0038] 1. Divide the three-dimensional volume data space area into regular sub-blocks of fixed size, and the regular sub-blocks are cubes with side length n, where n is a natural number power of 2;

[0039] 2. Arrange and number the regular sub-blocks in ascending order in the Z, X, and Y directions;

[0040] 3. Store the data representing different morphological elements in the regular sub-block in the form of a three-dimensional array in the corresponding regular sub-block file;

[0041] 4. Combining the 3D volume data field information and the regular sub-block files arranged in sequence of numbers into a 3D volume data file repres...

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Abstract

A method for presenting large-scale of 3D data set includes dividing 3D body space to be regular sub block in fixed size being cube with edge length of n, setting n to be natural number time power of Z, numbering and increment-arranging said subblocks along Z and X as well as Y directions in sequence, storing various state element data in body of said subblock in relevant subblock file in 3D array mode, forming 3D body volume data file according to 3D body data field information and file of said subblock being arranged as per numbering order.

Description

technical field [0001] The invention relates to a method for representing a large-scale three-dimensional data set. The large-scale three-dimensional data set represented by the method is arranged in an orderly and standardized manner, supports efficient access and access, and supports mapping of various geometric forms. Background technique [0002] In recent years, voxel graphics technology has become a research hotspot in computer graphics and scientific computing visualization; it is not only widely used in medical imaging, fluid dynamics simulation, but also in the representation of mechanical parts and the simulation of parts processing. Voxel graphics technology is a technology that describes three-dimensional shapes with voxels as the core. Its research content includes data input, storage, construction, modeling, analysis, processing, display and animation of spatial objects; among them, voxel-based geometry Model representation method is one of the difficulties in ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00
Inventor 马殿富朱岩赵永望潘志华胡春阳刘旭东
Owner BEIHANG UNIV
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