Potential Field Data Fusion in Curvelet Domain
详细信息
- 责任者：Zhang Henglei (Institute of Geophysics and Geomatics ; China University of Geosciences ; Wuhan 430074 ; China) ; Liu Tianyou
- 刊名：Oil Geophysical Prospecting
- 出版年：2011
- 卷期：46(4)
- 关键词：potential field ; 数据处理 ; data processing ; 数据融合 ; data fusion
- 页码：p.648-653
- 图表：7 illus., 18 refs.
- 分类号：1600
- 出版序号：1265
- issnNo：ISSN1000-7210
- isbnNo：CN13-1095/TE
摘要
In order to enhance the effectiveness of fusion data and preserve information of high-precision data, the authors propose a fusion algorithm, called boundary attenuation and direction weighted with regional gradient in curvelet domain. The authors use the scale and gradient to impact the weighted operator and then apply it on the curvelet coefficients as weighted calculation. Both theoretical analysis and applications on aeromagnetic data fusion in South China indicate that the algorithm can maintain the local information and get a fusion result with a small overlap area. Data Accuracy at overlap area is high and especially it avoids the boundary effect, such as high-frequency vibration, abnormal distortions,etc.
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