Abstract

We present a digital signal processing technique that reduces the speckle content in reconstructed digital holograms. The method is based on sequential sampling of the discrete Fourier transform of the reconstructed image field. Speckle reduction is achieved at the expense of a reduced intensity and resolution, but this trade-off is shown to be greatly superior to that imposed by the traditional mean and median filtering techniques. In particular, we show that the speckle can be reduced by half with no loss of resolution (according to standard definitions of both metrics).

© 2007 Optical Society of America

Full Article  |  PDF Article
More Like This
Hybrid method for speckle noise reduction in digital holography

Jun Dong, Shuhai Jia, and Hongqiang Yu
J. Opt. Soc. Am. A 36(12) D14-D22 (2019)

Single-shot speckle reduction by elimination of redundant speckle patterns in digital holography

Weitao Lin, Li Chen, Yonghao Chen, Wenyang Cai, Yihua Hu, and Kunhua Wen
Appl. Opt. 59(16) 5066-5072 (2020)

Speckle reduction in optical coherence tomography images using digital filtering

Aydogan Ozcan, Alberto Bilenca, Adrien E. Desjardins, Brett E. Bouma, and Guillermo J. Tearney
J. Opt. Soc. Am. A 24(7) 1901-1910 (2007)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (16)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription