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基于格雷编码投影的三维测量技术研究 被引量:9

Research of 3D Measurement Technology Based on Gray Code Projection
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摘要 采用编码条纹投影解相位技术,通过向物体投影6幅经过格雷编码的二值条纹图与4幅周期为2N-1的正弦条纹图,来实现相位的求解。这种方法实现了边缘陡峭物体的测量,同时提高了相位解包的准确性。与传统方法相比,这种方法能够测量物体的阶跃特性,且投射高频条纹能够提高测量精度。 The way of encoded fringe projection is taken through projecting six binary fringe patterns after gray coding and four sinusoidal fringe patterns with the cycle of 2^N-1 into the object to unpack phase. This method achieved a measurement of object with steep edge, and improved the accuracy of phase unwrapping at the same time. Compared with traditional methods, this method can measure the step characteristics of object, and the measurement accuracy can be improved when high frequency fringe is projected.
出处 《激光与光电子学进展》 CSCD 北大核心 2014年第3期111-114,共4页 Laser & Optoelectronics Progress
基金 国家自然科学基金(U231112)
关键词 测量 条纹投影 相位解包 编码投影 格雷码 measurement fringe projection phase unwrapping coded projection gray code
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