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OALib Journal期刊
ISSN: 2333-9721
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动态图像变形的纵横波自动时间匹配
Keywords: 动态图像变形,时间匹配,全局最优,纵横波速度比
Abstract:
？基于全局最优化理论研究了动态图像变形算法,将其应用于多分量地震资料处理中,提出了“三步”法逐步求取纵横波时移量的实用流程.首先对纵横波剖面进行旅行时和能量预处理,使之满足动态图像变形算法的计算条件;然后应用图像变形算法求取时移量的低频趋势并对转换横波剖面进行变形;最后应用多维的图像变形算法求取时移量的高频成份并变形.实际多分量地震资料的匹配结果表明,该方法思路可行,效果较好.由匹配后的时移场可得到纵横波速度比,为转换波的偏移速度建模提供了新的途径.
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