A 3D Seismic Volume Vector Quantization Compressed Volume Rendering Method

A quantitative compression and three-dimensional seismic technology, which is applied in seismic signal processing and other directions, can solve the problems of small homogenous regions and low compression ratios, and achieve the effects of reduced compression loss, high compression ratio, and reduced distortion

Inactive Publication Date: 2016-04-13
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

The existing methods have a low compression rate when solving seismic data volume rendering with small homogeneous regions and scattered numerical distribution.

Method used

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  • A 3D Seismic Volume Vector Quantization Compressed Volume Rendering Method
  • A 3D Seismic Volume Vector Quantization Compressed Volume Rendering Method
  • A 3D Seismic Volume Vector Quantization Compressed Volume Rendering Method

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Embodiment Construction

[0040] The overall process of this method is as follows figure 2 As shown, it mainly includes: data preprocessing, vector quantization, decompression drawing.

[0041] The present invention combines the horizon features in the seismic data features (such as image 3 and Figure 4 As shown), constraining the amount of original data to be compressed, a hierarchical classification and hierarchical vector quantization algorithm is proposed. This method can concentrate the data to be compressed in the target area, eliminate more data redundancy, and significantly reduce the compression distortion under the same codebook size.

[0042] The data preprocessing process is as Figure 5 The data is processed as follows:

[0043] 1) Block processing of original seismic data: the present invention uses a block method with a size of 4*4*4 to divide the original seismic data into 64 points (the size of the block can be adjusted according to the actual data size) .

[0044] 2) Determin...

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Abstract

The invention discloses a three-dimensional seismic volume vector quantization compression volume rendering method, which includes three parts: data preprocessing, vector quantization, and decompression rendering. By introducing the target feature, the compression loss of the target area is reduced, and the compression rate of the non-target area is improved; the concept of data classification is introduced to facilitate data compression; the layer feature is introduced, combined with this feature to determine the target area, and the information is used to compress the volume data ; Introduce the concept of error coefficient, through which the distortion degree of the target area can be effectively reduced and the overall compression rate can be improved. Theoretical and simulation analysis shows that the present invention improves the peak signal-to-noise ratio of the target area while improving the overall data compression rate.

Description

technical field [0001] The invention relates to a mass three-dimensional scalar field volume rendering visualization method, in particular to a three-dimensional seismic volume vector quantization compressed volume rendering method. Background technique [0002] Volume rendering technology is a technology that generates two-dimensional images based on three-dimensional data fields. Compared with surface rendering technology, volume rendering technology pays more attention to displaying volume details of data rather than surface details, and has broad application prospects in many fields such as medicine, geological exploration, meteorological analysis, and molecular model construction. [0003] With the continuous improvement of volume rendering technology, people have proposed a variety of volume rendering algorithms, including: direct volume rendering by ray-casting method, volume rendering by cross-cut transformation method, volume rendering technology based on texture pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/32
Inventor 鲁才李平春胡光岷
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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