An improved fast algorithm for calculating the gradient of data field
文献类型：会议论文
| 作者 | Zhong, Jia; Zou, Ziming |
| 出版日期 | 2017 |
| 会议日期 | July 2, 2017 - July 4, 2017 |
| 会议地点 | Prague, Czech republic |
| 关键词 | Direct Volume Rendering Non-uniform Grid Data Trilinear Interpolation Gradient Of Data Mhd |
| 英文摘要 | It is an important part of extracting the border in volume visualization for computing gradient feature of spatial data accurately and rapidly. The traditional method of volume visualization is to resample the data of model or observation distributing on non-uniform grids of three-dimensional Euclidean space by trilinear interpolation to uniform grids, then calculate gradient features of all grid vertex data. This paper designs an improved algorithm, based on properties of equal partial derivatives along axis after data linear interpolation, it removes a large number of repetitive calculations and redundant storage of partial derivatives, in traditional method. Finally, this paper verifies the algorithm validity with visualization experiments using the MHD simulation data to extract the magnetopause. © 2017 Copyright held by the owner/author(s). |
| 会议录 | ACM International Conference Proceeding Series
 |
| 语种 | 英语 |
| ISBN号 | 9781450352369 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/6047]  |
| 专题 | 国家空间科学中心_运控部/科学卫星综合运控中心 |
| 推荐引用方式 GB/T 7714 | Zhong, Jia,Zou, Ziming. An improved fast algorithm for calculating the gradient of data field[C]. 见:. Prague, Czech republic. July 2, 2017 - July 4, 2017. |
入库方式： OAI收割
来源：国家空间科学中心
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