【摘要】 地震数据三维可视化技术作为一个重要的地震解释手段,得到广泛关注。近年来随着勘探技术的进步,地震数据规模增大且结构复杂,给数据解析及数据可视化算法提出新的要求。详细介绍SEGY文件的格式,并给出地震数据的解析方法;针对三维数据场地震数据的性质,研究地震数据的三维可视化技术,并在GPU下优化体绘制算法,实现OSG框架下地震体模型的旋转、缩放及切片等交互方式;对多组数据进行大量的对比实验。实验结果表明,加速后的算法能够获得比较显著的性能提升。更多还原

【Abstract】 3 D visualization technology of seismic data has received extensive attention as an important means of seismic interpretation.With the progress of exploration technology,the scale of seismic data increases and the structure of seismic data is complex,which puts forward new requirements for data analysis and data visualization algorithm.We introduced the format of SEGY file in detail,and gave the analytic method of seismic data.According to the nature of seismic data in 3D data field,we studied the 3D visualization technology of seismic data.In addition,we optimized the volume rendering algorithm under GPU,and realized the interactive mode of rotation,scaling and slicing of seismic volume model under OSG framework.The experimental results show that the performance of the accelerated algorithm can be improved significantly by comparing several groups of data.更多还原