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提出一种新的三维轮廓术——对称线性编码轮廓术（ Ｓ Ｌ Ｃ Ｐ），它利用一对称周期线性结构光编码被测物面，并引入相移技术解码轮廓，因而相位求解简单。详细讨论了 Ｓ Ｌ Ｃ Ｐ的原理，并通过实验验证了其可行性。
A new three-dimensional contour-symmetric linear coded contour (S L C P) is proposed, which uses a symmetric periodic linear structure to encode the measured object surface and introduces the phase shift technique to decode the contour. Therefore, the phase solution is simple. The principle of S L C P is discussed in detail, and its feasibility is verified through experiments.