[1] Bruning J H, Herriott D R, Gallagher J E et al.. Digital wavefront measuring interferometer for testing optical surfaces and lenses. Appl. Opt., 1974, 13(11):2693～2703

[3] van Haasteren A J P, Frankena H J. Real-time displacement measurement using a multicamera phase-stepping speckle interferometer. Appl. Opt., 1994, 33(19):4137～4142

[4] Weijers A L, van Brug H, Frankena H J. Real time deformation measurement using a transportable shearoghaphy system. Proc. SPIE, 1996, 2921:76～81

[5] Kranz J, Lamprecht J, Hettwer A et al.. Fiber optical single frame speckle interferometer for measuring industrial surface. Proc. SPIE, 1998, 3407:328～331