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Linearly coded profilometry with a coding light that has isosceles triangle teeth: even-number-sample decoding method

机译:具有等腰三角形牙齿的编码光的线性编码轮廓图:偶数样本解码方法

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摘要

A new triangulation-based optical profilometry-linearly coded profilometry (LCP)-is presented. In this method, a linear coding technique is introduced. It uses a periodic sawtoothlike structure light to code the surface being measured and the phase-shifting technique to decode the profile. A coding light that has isosceles triangle teeth is proposed. To realize the decoding, at least three samples are needed. When more than three samples are used, higher accuracy can be obtained. A decoding method of LCP with an even number of samples is provided. This method has been realized in my laboratory and the experimental results verify the reliability of LCP. Because the coding method used in LCP is simpler than that used in phase-measuring profilometry, LCP has a faster measuring speed. # 1997 Optical Society of America
机译:提出了一种新的基于三角测量的光学轮廓仪-线性编码轮廓仪(LCP)。在这种方法中,引入了线性编码技术。它使用周期性的锯齿状结构光对要测量的表面进行编码,并使用相移技术对轮廓进行解码。提出了具有等腰三角形齿的编码灯。为了实现解码,至少需要三个样本。当使用三个以上的样本时,可以获得更高的精度。提供了具有偶数个样本的LCP的解码方法。该方法已在我实验室实现,实验结果验证了LCP的可靠性。由于LCP中使用的编码方法比相位测量轮廓图中使用的编码方法简单,因此LCP的测量速度更快。 #1997美国眼镜学会

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