An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Ahumada AJ Jr, Beard BL.Ahumada AJ Jr, et al. Among authors: beard bl.J Opt Soc Am A Opt Image Sci Vis. 1997 Sep;14(9):2471-6. doi: 10.1364/josaa.14.002471.J Opt Soc Am A Opt Image Sci Vis. 1997.PMID: 9291614
Beard BL, Klein SA, Carney T.Beard BL, et al.J Opt Soc Am A Opt Image Sci Vis. 1997 Sep;14(9):2449-70. doi: 10.1364/josaa.14.002449.J Opt Soc Am A Opt Image Sci Vis. 1997.PMID: 9291613
Beard BL, Ahumada AJ Jr.Beard BL, et al.J Opt Soc Am A Opt Image Sci Vis. 1999 Mar;16(3):755-63. doi: 10.1364/josaa.16.000755.J Opt Soc Am A Opt Image Sci Vis. 1999.PMID: 10069061