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Determining surface orientation by projecting a stripe pattern

机译:通过投影条纹图案确定表面方向

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摘要

A method is presented for determining the surface orientations of an object by projecting a stripe pattern on to it. Assuming orthographical projection as a camera model and parallel light projection of the stripe pattern, the method obtains a 2 1/2-D representation of objects by estimating surface normals from the slopes and intervals of the stripes in the image. The 2 1/2-D image is further divided into planar or singly curved surfaces by examining the distribution of the surface normals in gradient space. A simple application to finding a planar surface and determining its orientation and shape is shown. The error in surface orientation is discussed.
机译:提出了一种通过将条纹图案投影到对象上来确定对象的表面方向的方法。假设将正交投影作为相机模型和条纹图案的平行光投影,则该方法通过根据图像中条纹的坡度和间隔估计表面法线来获得对象的2 1 / 2D表示。通过检查表面法线在梯度空间中的分布,将2 1 / 2-D图像进一步分为平面或单个曲面。显示了找到平面并确定其方向和形状的简单应用。讨论了表面取向的误差。

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