Estimating deformation factors of planar patterns in spherical panoramic images

Kim Bo-Sung; Park Jong-Seung

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Estimating deformation factors of planar patterns in spherical panoramic images

机译：估计球形全景图像中平面图案的变形因子

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摘要

The transformation between a planar image and a planar pattern is commonly described by a homography. However, a homography cannot express the exact relation between a spherical panoramic image and a planar pattern. In this paper, we propose a new method of parameter estimation for locating planar patterns in spherical panoramic images. First, we estimate transformation parameters which express how much the target object is scaled, translated and rotated in the spherical panoramic image. Then, we project the planar pattern onto the center of the spherical panoramic image. The center-aligned pattern is used to estimate the transformation parameters. The parameters express the geometric relation between pixels in the spherical panoramic image and pixels in the planar pattern. Our proposed estimation process decreases the error of pattern matching caused by the heavy spherical distortion. Experimental results show that the failure rate of matching is significantly reduced.

机译：平面图像和平面图案之间的转换通常由单应性描述。但是，单应性不能表达球形全景图像和平面图案之间的确切关系。本文提出了一种新的参数估计方法，用于定位球形全景图像中的平面图案。首先，我们估计变换参数，这些参数表示在球形全景图像中缩放，平移和旋转目标对象的程度。然后，我们将平面图案投影到球形全景图像的中心。中心对齐的模式用于估计转换参数。参数表示球形全景图像中的像素与平面图案中的像素之间的几何关系。我们提出的估计过程减少了由严重的球形失真引起的图案匹配误差。实验结果表明，匹配失败率明显降低。

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来源
《Multimedia systems》 |2017年第5期|607-625|共19页
作者
Kim Bo-Sung; Park Jong-Seung;
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作者单位

Incheon Natl Univ, Dept Comp Sci & Engn, Incheon, South Korea;

Incheon Natl Univ, Dept Comp Sci & Engn, Incheon, South Korea;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Spherical panoramic image; Spherical deformation; Homography; Planar pattern;

机译：球形全景图;球形变形;单应性;平面图案;

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Estimating deformation factors of planar patterns in spherical panoramic images

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