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The Research and Application of Seismic Data Visualization

Author: ZhangYouJia
Tutor: LiZhiYong
School: Hunan University
Course: Computer Science and Technology
Keywords: Scientific Visualization Seismic data Line, surface , volume rendering Coordinate transformation Qt OpenInventor
CLC: TP391.41
Type: Master's thesis
Year: 2009
Downloads: 295
Quote: 8
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Abstract


Seismic exploration is the primary means of geological exploration, based on scientific computing visualization technology of large-scale seismic data interpretation is one of the key core visualization. Scientific visualization techniques can help the image of scientific researchers, engineers and technicians to observe the relationship between its rules and data in the data trend and intuitive analysis, understanding, reveals the objective laws contained in the abstract data. In this paper, computer graphics and calculation software theory based on seismic data visualization technologies and methods, and successfully applied to international cooperation in research projects, the major work, including seismic data processing and multi-dimensional drawing method, earthquake general coordinate transformation method in data processing and seismic data visualization system open Plugin mode software architecture realization. The paper's main work is as follows: (1) for the problem of real-time multidimensional draw seismic data processing to achieve efficient line, surface and volume rendering algorithms (To avoid fewer sampling points or image zoom operation curve smoothness , this paper piecewise cubic Bezier curve fitting method to draw the seismic waveform graph, the curve changes to the characterization of the detection point vibration; rendering algorithm Pline format segment of the seismic data set; quadrilateral mesh triangle strip set Bezier surface fitting algorithm to draw stratigraphic surfaces; using color mapping algorithm to display two-dimensional seismic data; application the Open Inventor body diagram elements of the voxet format seismic data direct volume rendering); (2) in a multi-dimensional complex transform seismic data processing system The space-time coordinate conversion is one of the key issues. This paper presents the visualization of seismic data conversion between different coordinate systems and mapping algorithms and seismic data point coordinates recalculated and data normalization method; (3) for the system in the complex and diverse data processing function module as well as the dynamic open integration needs a Plugin mode software architecture, software-based design patterns. Application in the structure of a variety of software design patterns to support the open development of the visual interpretation of the seismic data module plug, integrated and efficient operation; (4) on the basis of the above work, participate in the the design seismic data visualization system (Seismic Data Visualization System), and the main software framework and visualization module plug. Data processing of the system is efficient, easy to operate interactive, the plugin feature-rich and easy to expand, and to verify the feasibility of the software architecture presented in this paper.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Pattern Recognition and devices > Image recognition device
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