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发明授权
CN107110992B 图像特征对准 有权

图像特征对准
摘要：
本发明提供了图像特征对准。在一些实现方式中，计算机可读有形介质包括指引处理器访问与第一子图像中的高对比度区域相关联的参考特征点的指令，所述第一子图像与钻孔的第一区段相关联。还存在有指引所述处理器识别第二子图像中的若干候选特征点的指令，所述第二子图像与所述钻孔的第二区段相关联，所述钻孔的所述第二区段邻近于所述钻孔的所述第一区段，其中所述候选特征点中的每者被认为是可能与所述高对比度区域相关联。存在有指引所述处理器使用全局解修剪对所述候选特征点进行修剪以获得所述第二子图像中的匹配候选特征点。
摘要（英）：

Image feature alignment is provided. In some implementations, a computer-readable tangible medium includes instructions that direct a processor to access a reference feature point associated with a high contrast region in a first sub-image that is associated with a first section of a borehole. Instructions are also present that direct the processor to identify several candidate feature points in a second sub-image associated with a second section of the borehole adjacent to the first section of the borehole, with each of the candidate feature points being believed to possibly be associated with the high contrast region. Additional instructions are present that direct the processor to prune the candidate feature points using global solution pruning to arrive at a matching candidate feature point in the second sub-image.

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