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Real-Time, Composite Pattern, Demodulation using Optical Correlators

机译:使用光学相关器的实时,复合模式解调

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Structured light illumination refers to a technique of acquiring 3-D surface scans through triangulation between a camera and a projector. Because traditional structured-light systems use multiple patterns projected sequentially in time, SLI is not typically associated with applications involving moving surfaces. To address this problem, the authors have introduced a technique referred to as composite pattern projection which involves the combining of a set of standard SLI patterns into a continuously projected pattern such that depth can be recovered from a single, captured image. As such, composite patterns can be used for tracking moving objects in 3-D space. The problem with composite patterns, though, is the added computational complexity associated with demodulating the captured image and extract the component SLI patterns. So in this paper, we introduce a means of achieving real-time pattern demodulation through the use of optical correlators with demonstrated results achieving a processing rate of over 100 frames per second.
机译:结构光照明是指通过相机和投影仪之间的三角测量来获取3-D表面扫描的技术。由于传统的结构光系统使用按时间顺序投影的多个图案,因此SLI通常不与涉及移动表面的应用程序相关联。为了解决这个问题,作者引入了一种称为复合图案投影的技术,该技术涉及将一组标准SLI图案组合成一个连续投影的图案,以便可以从单个捕获的图像中恢复深度。这样,合成图案可用于跟踪3D空间中的运动对象。但是,合成模式的问题是与解调捕获的图像并提取分量SLI模式相关的增加的计算复杂性。因此,在本文中,我们介绍了一种通过使用光学相关器来实现实时模式解调的方法,其已证明的结果实现了每秒100帧以上的处理速度。

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