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Tensor-approximation-based multi-solution body drawing method of mass data

A multi-resolution, massive data technology, applied in the field of volume rendering, can solve the problems of reducing the amount of data and extracting structural features, which can not be met, etc., to reduce the overall resolution size, reduce processing time, and achieve multi-resolution processing. Effect

Active Publication Date: 2015-12-16
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

At this time, multi-resolution processing based on information entropy can no longer meet the requirements of effectively reducing the amount of data and extracting structural features.

Method used

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  • Tensor-approximation-based multi-solution body drawing method of mass data

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Embodiment Construction

[0043]For the convenience of those skilled in the art to understand the technical content of the present invention, below in conjunction with Attached picture The content of the present invention is further explained.

[0044] Such as figure 1 As shown, a kind of massive data multi-resolution volume rendering method based on tensor approximation of the present invention comprises the following steps:

[0045] S1: Divide the original data into blocks to obtain several data blocks;

[0046] S2: performing tensor decomposition on each data block obtained in step S1;

[0047] S3: Perform multi-resolution processing on each data block obtained in step S2;

[0048] S4: Reconstruct each data block obtained in step S3, and create a two-dimensional texture, and perform seismic data drawing according to the reconstructed data block.

[0049] The step S1 is specifically: the size of the block size setting is directly related to the amount of information in each data block. If the ...

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Abstract

The invention discloses a tensor-approximation-based multi-solution body drawing method of mass data. According to the method, block processing is carried out original data to obtain a plurality of data blocks; tensor decomposition and multi-solution processing are carried out on each data block; and reconstruction processing is carried out on each data block after the tensor decomposition and multi-solution processing and a two-dimensional texture is established to complete drawing of seismic data. Noises in the original data are filtered effectively by using an order cut-off method and a factor matrix and core tensor order cut-off way is used for replacing tensor decomposition for each order exploration, so that the order size is determined for each data block accurately and time of optimum order selection of the data block is saved. Moreover, a level of detail of each data block is selected according to the data obtained after order cutting off, so that the integrated resolution of the data can be reduced rapidly and effectively and the processing time can be reduced and thus the multi-resolution processing is realized; and a better drawing effect can be obtained by compared with the traditional information-entropy-based multi-resolution processing.

Description

technical field [0001] The invention belongs to the field of image processing, and in particular relates to a volume rendering technology. Background technique [0002] The visualization technology of volume data is a very common technology, which can be widely used in many fields, such as: medical field, fluid physics field, meteorological field, geological exploration field and so on. Since human beings are most sensitive to the stimulation of visual signals, visualization technology can convert documents, pictures, tables, etc. containing a large amount of information into three-dimensional images, which is convenient for researchers to observe and analyze them intuitively. [0003] Since in real life, the common three-dimensional objects are their surfaces, therefore, in the model based on information entropy, the surface representation is often used to draw a three-dimensional body. However, many times, what people care about is precisely the internal structure of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T15/08
Inventor 鲁才张力彬曹琛
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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