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Access memory method for realizing shear wave data three-dimensional visualization by aiming at parallel volume rendering

A volume data, shear wave technology, applied in the field of visualization

Inactive Publication Date: 2014-11-19
WUHAN UNIV
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But the difficulty is to improve the memory access efficiency based on the CUDA architecture during drawing, and further improve the operating efficiency of the program

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  • Access memory method for realizing shear wave data three-dimensional visualization by aiming at parallel volume rendering
  • Access memory method for realizing shear wave data three-dimensional visualization by aiming at parallel volume rendering
  • Access memory method for realizing shear wave data three-dimensional visualization by aiming at parallel volume rendering

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Embodiment Construction

[0022] The technical scheme of the present invention can be automatically run by those skilled in the art in combination with computer software technology. The technical solution of the present invention will be described in detail below in conjunction with the drawings and embodiments.

[0023] The present invention provides a memory access method for realizing three-dimensional visualization of shear wave data for parallel volume rendering. The three-dimensional visualization of shear wave data is realized based on the CUDA architecture. The CUDA architecture includes a texture memory, a global memory, a shared memory, and a constant memory. The stored data objects include 3D texture of volume data, volume data and view matrix. Memory access optimization is realized for the establishment of three-dimensional texture of volume data, establishment and traversal of volume data, misalignment of access periods and interval access, and access of viewing angle matrix in the process...

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Abstract

The invention provides an access memory method for realizing shear wave data three-dimensional visualization by aiming at parallel volume rendering. According to the access memory method, four-based access memory optimization strategies including texture memory strategies, global memory strategies, global and share memory strategies, constant memory strategies designed by aiming at a visual angle matrix frequently invoking shear wave data, and rendering quality evaluation method and criterion are provided. Through the access memory method, the rendering efficiency for realizing the shear wave data three-dimensional visualization by adopting a volume rendering method on the basis of a CUDA (compute unified device architecture) can be improved. Therefore, the access memory method perfectly helps scientific research personnel to accurately know the plate tectonics, the dynamics process, the earthquake generation mechanism and the like, and further, the fields of geological exploration, continental plates, seismic interpretation and the like are favorably developed.

Description

technical field [0001] The invention relates to the field of visualization technology, in particular to a memory access method for realizing three-dimensional visualization of shear wave data for parallel volume rendering. Background technique [0002] Seismic waves are the only waves we know of that can penetrate the interior of the Earth. When the fault ruptures, the rock bodies on both sides of the fault move relative to each other and release a large amount of energy. Most of the energy is doing work by overcoming the frictional force, thereby converting into heat energy; while the other part propagates to the surrounding crust in the form of elastic waves with the source as the center. Among them, the compression wave formed with the thrust generated by the rapid movement of the rock mass on both sides of the fault is called P wave; the elastic wave formed along the relative displacement along the fault plane is called shear wave (shear-wave), referred to as For the S...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T15/08
Inventor 刘金硕王丽娜程力尹晓丹郑勇
Owner WUHAN UNIV
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