| 基于栅格数据的局部奇异性分析迭代方法及其软件实现 |
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| 引用本文： | 陈志军,成秋明,陈建国.基于栅格数据的局部奇异性分析迭代方法及其软件实现[J].地质学刊,2014,38(4):613-622. |
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| 作者姓名： | 陈志军 成秋明 陈建国 |
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| 作者单位： | 中国地质大学地质过程与矿产资源国家重点实验室 |
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| 基金项目： | 国家自然科学基金项目（41272361, 40802081）,中国地质调查局工作项目（12120113089300）,中央高校基本科研业务费专项资金资助项目（CUG120102） |
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| 摘 要： | 近些年,弱缓化探异常识别已成为成矿预测和勘查评价中十分关键的问题。多重分形理论的局部奇异性分析因其崭新的思路、简便的方法、优良的效果而在弱缓异常识别中受到广泛关注。在深入剖析局部奇异性分析基本思想及计算方法的基础上,引入正规化尺度参数L,提出了迭代方法来改进局部奇异性指数的估值。给出了奇异性迭代算法并用C＋＋编程实现,软件功能强劲,操作灵活,不仅适用于各向同性情形,还适用于各向异性尺度的奇异性计算和方向性奇异性计算。软件的动态链接库版本已在Geo DAS矿产资源定量预测专业软件中应用。
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| 关 键 词： | 局部奇异性分析 栅格数据 多重分形 迭代方法 正规化尺度参数 |
| 收稿时间： | 2014/8/18 0:00:00 |
Iterative approach to local singularity analysis and software implementation based on raster data |
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| CHEN Zhi-jun.Iterative approach to local singularity analysis and software implementation based on raster data[J].Jiangsu Geology,2014,38(4):613-622. |
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| Authors: | CHEN Zhi-jun |
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| Institution: | CHEN Zhi-jun,CHENG Qiu-ming,CHEN Jian-guo(1. State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China; 2. Faculty of Earth Resources, China University of Geoscienees(Wuhan) , Wuhan 430074, China; 3. Department of Earth and Space Science, Department of Geography, York University, Toronto M3J1P3, Canada) |
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| Abstract: | Weak anomaly identification was a challenging problem in the metallogeny prognosis and mineral resource assessment in recent years. Great attentions were drawn to the local singularity analysis based on multifractal theory for its new research ideas,simple method and beneficial effects to anomaly recognition. The authors introduced the singularity principles and its computational methods.The authors took into account the regularization scale parameter L and brought forward the iterative approach for the singularity analysis to improve the estimation of the singularity index. The iterative algorithm and software were realized and implemented using C ＋ ＋ language. This iterative approach could work not only for the isotropic case,but also could apply to the anisotropic scaling case and directional singularity index estimation. The dynamic-link library version of this software had been applied in GeoD AS which was professional GIS software for quantitative prediction of mineral resources. |
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| Keywords: | Local singularity analysis Raster data Multifractals Iterative approach Regularization scale parameter |
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