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一种针对大位移图像的流形拼接新方法

A New Method of Manifold Mosaic for Large Displacement Images

  • 摘要: 传统的流形拼接将每幅源图像上的一个中心切片粘接到一起以制作出大图,因此相邻视域间的位移要求非常小以实现有效的切割。本文提出一种实现大位移图像间制作流形拼图的方法。该方法将相邻切片间的重叠区间按对应矩阵切割成多个切片,然后将这些切片扭曲到一起,从而制作出光滑的拼图。本文还提出一种改进的 RANSAC 算法以提高对应矩阵计算的精度。实验结果证明本文提出的流形拼接方法能够有效地实现大位移图像间的流形拼接。

     

    Abstract: In the traditional manifold mosaic, a single center strip is clipped out from each source image to create a large image. Therefore the displacement between neighboring views should be very small in order to fulfill effective strips cutting. In this paper, a method is proposed to create a manifold mosaic by images with relative large displacement by means of cutting out multiple strips in the overlap area according to the homography between images. These strips are then warped together to create a smooth mosaic. An improved RANSAC algorithm is also presented in order toimprove the precision of homography calculation. Experimental results demonstrate the efficiency of the method.

     

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