Three-dimensional shape recognition using computer-generated holograms and temporal light-in-flight technique.

Three-dimensional shape recognition using computer-generated holograms and temporal light-in-flight technique.
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使用计算机生成的全息图和时间飞行光技术进行三维形状识别。

DOI:
10.1364/ao.34.006621
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发表时间:
1995
期刊:
影响因子:
1.9
通讯作者:
N. Avishay
N. Avishay
中科院分区:
工程技术4区
文献类型:
--
作者:
D. Mendlovic;N. Avishay

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光传播的可视化和飞行中的光是观察通过光学系统的光脉冲的总称。艾布拉姆森建议[应用。选择。30,1242(1991)]使用飞行中光技术对不同物体进行全息比较。他的系统基于以这样的顺序发送皮秒脉冲,即如果物体具有所需的形状,所有散射光同时到达超快探测器。结果是,检测到的脉冲的短小是全息记录的主对象和测试对象之间的相似性的量度。参考全息图从母版表面记录,该母版表面并不总是可用的。这种方法存在对比度低的缺点。提出了一种计算全息技术,并对其进行了数学分析。这种技术克服了低对比度的问题,并且不需要主对象。
Visualization of light propagation and light in flight are general names for viewing a pulse of light traveling through an optical system. Abramson suggested [Appl. Opt. 30, 1242 (1991)] the use of light-in-flight techniques for holographic comparison of different objects. His system is based on sending picosecond pulses in such a sequence that, if the object has the desired shape, all the scattered light arrives simultaneously at an ultrafast detector. The result is that the shortness of the detected pulses is a measure of the similarity between a holographically recorded master object and the test object. The reference hologram is recorded from a master surface, which is not always available. This method suffers from low-contrast results. A computer-generated-hologram technique is suggested and mathematically analyzed. This technique overcomes the low-contrast problem, and a master object is not needed.
DOI: 10.1364/ao.28.001834
发表时间: 1989-05-15
期刊: APPLIED OPTICS
影响因子: 1.9
作者:
ABRAMSON, NH;SPEARS, KG
通讯作者: SPEARS, KG