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给出了一个测量物体刚体位移的数字白光散斑照相术。数字傅里叶交换从双曝光数字白光散斑图用来产生杨氏条纹。该杨氏条纹能够用数字傅里叶变换结合条纹重构进行自动分析。此外，给出一种条纹质量增强的方法。
A digital white speckle photography is given to measure the rigid body displacement of an object. The digital Fourier transform is used to generate Young’s stripes from double exposure digital white speckle patterns. The Young’s Stripe can be automatically analyzed using digital Fourier transform combined with stripe reconstruction. In addition, a method of enhancing the quality of streaks is given.