Limitations of Optical 3D Sensors
Limitations of Optical 3D Sensors
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DOI：
10.1007/978-3-642-12012-1_3
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
G. Häusler;S. Ettl
中科院分区：
文献类型：
--
作者：
G. Häusler;S. Ettl
本章介绍光学3D传感器的物理限制。测量不确定度的极限将被讨论;换句话说：“我们能够知道多少3D信息？”噪声的主要来源，以及这种噪声如何影响测量的微尺度地形将被讨论。关于如何克服这些限制的一些想法将被给出。似乎只有四种类型的传感器可以通过噪声的主要来源以及物理测量不确定性如何与孔径或工作距离成比例来区分。这四种类型是三角测量法、粗糙表面的相干扫描干涉测量法、经典干涉测量法和偏折测量法。3D传感器将作为通信通道进行讨论，并将解决有关信息高效传感器的考虑因素。
This chapter is about the physical limitations of optical 3D sensors. The ultimate limit of the measurement uncertainty will be discussed; in other words: “How much 3D information are we able to know?” The dominant sources of noise and how this noise affects the measurement of micro-scale topography will be discussed. Some thoughts on how to overcome these limits will be given. It appears that there are only four types of sensors to be distinguished by the dominant sources of noise and how the physical measurement uncertainty scales with the aperture or working distance. These four types are triangulation, coherence scanning interferometry at rough surfaces, classical interferometry and deflectometry. 3D sensors will be discussed as communication channels and considerations about information-efficient sensors will be addressed.