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Applied Optics

Applied Optics


  • Vol. 30, Iss. 4 — Feb. 1, 1991
  • pp: 420–425

TV holography: spatial resolution and signal resolution in deformation analysis

Eiolf Vikhagen  »View Author Affiliations

Applied Optics, Vol. 30, Issue 4, pp. 420-425 (1991)

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We discuss the resolution limits of digital TV holography used for nondestructive testing. A phase shifting technique converts the interferometric information into a phase distribution image. Spatial low pass filtering improves the phase accuracy at the expense of spatial resolution. Experiments show that spatial details down to 2.5 × 2.5 pixels and displacement below λ/100 may be resolved.

© 1991 Optical Society of America

Original Manuscript: November 13, 1989
Published: February 1, 1991

Eiolf Vikhagen, "TV holography: spatial resolution and signal resolution in deformation analysis," Appl. Opt. 30, 420-425 (1991)

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