Interference-Free Epipole-Centered Structured Light Pattern for Mirror-Based Multi-view Active Stereo
Interference-Free Epipole-Centered Structured Light Pattern for Mirror-Based Multi-view Active Stereo
复制标题
DOI：
10.1109/3dv.2015.25
复制
发表时间：
2015-10
期刊：
影响因子：
--
通讯作者：
Tomu Tahara;Ryo Kawahara;S. Nobuhara;T. Matsuyama
中科院分区：
文献类型：
--
作者：
Tomu Tahara;Ryo Kawahara;S. Nobuhara;T. Matsuyama
本文旨在提出一种新的基于镜面的多视点主动立体结构光图案，使得投射到物体表面的图案即使在投影仪直接或间接通过镜面照明的情况下也不会干涉。我们的无干扰投影的关键思想是通过利用真实和虚拟投影仪定义的极线几何来编码投影仪像素位置，以便它们不会与来自其他投影仪像素的代码冲突。我们证明了我们的新编码不会在来自真实和虚拟投影仪的直接图案和间接图案之间产生代码冲突。使用真实数据集和合成数据集的评估表明，我们的方法可以实现无干扰投影，而不需要使用最先进方法中使用的专用设备，如正射投影仪。
This paper is aimed at proposing a new structured light pattern for mirror-based multi-view active stereo so that the patterns cast onto the object surface do not interfere even where the object is illuminated by the projector directly and indirectly via mirror. The key idea of our interference-free projection is to encode the projector pixel locations so that they do not collide with the code from other projector pixels by exploiting the epipolar geometry defined by the real and the virtual projectors. We prove that our new encoding does not generate code collisions between the direct and indirect patterns from the real and the virtual projectors respectively. Evaluations using real and synthesized datasets demonstrate that our approach can realize an interference-free projection without using specialized equipment such as orthographic projectors used in the state-of-the-art methods.