Fast B-spline surface extraction algorithm of seismic volume data on GPU  

作　　者：LIN Senqiao CHE Xiangjiu GUO Xiaoxin 

机构地区：[1]College of Computer Science and Technology,Jilin University

出　　处：《Computer Aided Drafting,Design and Manufacturing》2013年第1期14-20,共7页计算机辅助绘图设计与制造（英文版）

基　　金：Supported by NSFC(61170005)

摘　　要：In the process of seismic data interpretation, the extraction of a horizon or a fault is generally needed. In this paper we present a fast extraction method. First select some feature points interactively, then reconstruct the surface according to the selected feature points by using B-spline interpolation curve or surface. In order to solve the error-drawing problem appeared in the process of interactive rendering, which is caused by the change of sampling interval as the view point changes, we combine shear-warp and splatting algorithm to render the surface. The rendering of seismic data and specific surface in our work are achieved on GPU platform using CUDA programming language, which make it able to meet the requirements of real-time rendering.In the process of seismic data interpretation, the extraction of a horizon or a fault is generally needed. In this paper we present a fast extraction method. First select some feature points interactively, then reconstruct the surface according to the selected feature points by using B-spline interpolation curve or surface. In order to solve the error-drawing problem appeared in the process of interactive rendering, which is caused by the change of sampling interval as the view point changes, we combine shear-warp and splatting algorithm to render the surface. The rendering of seismic data and specific surface in our work are achieved on GPU platform using CUDA programming language, which make it able to meet the requirements of real-time rendering.

关 键 词：volume rendering surface extraction B-spline surface reconstruction CUDA 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]