结构光周期图案的统一解码方法

Universal decoding method for periodic wave patterns in structured light illumination

针对结构光解码问题,在传统相位测量轮廓术(PMP)理论的基础上,提出一种结构光周期图案的统一解码方法。通过把经典PMP的相位计算公式运用到任何周期波图案中,比如三角波、锯齿波、方波图案等,通过多频时间相位展开算法实现了对包含高频率的图案的相位展开。实验结果表明,提出的方法达到了相对高的精度,验证了此方法的有效性。

For structured light decoding,we propose a universal decoding method for periodic wave patterns based on tradi-tional phase measuring profilometry （PMP）.By applying PMP phase computation algorithm in such periodic wave patterns,as triangular,sawtooth and square wave patterns,we could achieved accurate final phases by temporally unwrapping phases of the patterns with sufficiently high frequency.Experiments using a white wall as the testing surface and reconstructing a white plaster statue demonstrate that,the proposed method is valid as it can achieve comparable accuracy.