Department of Mechanical Engineering, Iowa State University, Ames, Iowa 50011, USA.
Opt Lett. 2009 Oct 15;34(20):3080-2. doi: 10.1364/OL.34.003080.
We present a 3-D shape-measurement technique using a defocused projector. The ideal sinusoidal fringe patterns are generated by defocusing binary structured patterns, and the phase shift is realized by shifting the binary patterns spatially. Because this technique does not require calibration of the gamma of the projector, it is easy to implement and thus is promising for developing flexible 3-D shape measurement systems using digital video projectors.
我们提出了一种使用离焦投影仪的三维形状测量技术。通过离焦二进制结构图案生成理想的正弦条纹图案，并通过空间移动二进制图案实现相移。由于该技术不需要对投影仪的伽马值进行校准，因此易于实现，因此有望开发使用数字投影仪的灵活三维形状测量系统。
