WO2017120414A3 - Holographic imaging with improved snr - Google Patents

Holographic imaging with improved snr Download PDF

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Publication number
WO2017120414A3
WO2017120414A3 PCT/US2017/012448 US2017012448W WO2017120414A3 WO 2017120414 A3 WO2017120414 A3 WO 2017120414A3 US 2017012448 W US2017012448 W US 2017012448W WO 2017120414 A3 WO2017120414 A3 WO 2017120414A3
Authority
WO
WIPO (PCT)
Prior art keywords
holographic imaging
improved snr
low
pass filtering
interference pattern
Prior art date
Application number
PCT/US2017/012448
Other languages
French (fr)
Other versions
WO2017120414A2 (en
Inventor
Andrés F. ZULUAGA
Original Assignee
Zuluaga Andrés F
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zuluaga Andrés F filed Critical Zuluaga Andrés F
Publication of WO2017120414A2 publication Critical patent/WO2017120414A2/en
Publication of WO2017120414A3 publication Critical patent/WO2017120414A3/en

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/0443—Digital holography, i.e. recording holograms with digital recording means
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2223/00—Optical components
    • G03H2223/50—Particular location or purpose of optical element
    • G03H2223/53—Filtering the hologram information, i.e. the fringe pattern
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2223/00—Optical components
    • G03H2223/50—Particular location or purpose of optical element
    • G03H2223/55—Arranged at a Fourier plane

Landscapes

  • Engineering & Computer Science (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Holo Graphy (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

An apparatus for holographic imaging includes first and second image planes, and a low-pass filtering stage between them. The low-pass filtering stage has a mask disposed to remove a central portion of an interference pattern on the first image plane. This causes a filtered interference pattern to be incident on the second image plane.
PCT/US2017/012448 2016-01-06 2017-01-06 Holographic imaging with improved snr WO2017120414A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201662275423P 2016-01-06 2016-01-06
US62/275,423 2016-01-06
US201662275869P 2016-01-07 2016-01-07
US62/275,869 2016-01-07

Publications (2)

Publication Number Publication Date
WO2017120414A2 WO2017120414A2 (en) 2017-07-13
WO2017120414A3 true WO2017120414A3 (en) 2017-08-24

Family

ID=59274362

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2017/012448 WO2017120414A2 (en) 2016-01-06 2017-01-06 Holographic imaging with improved snr

Country Status (1)

Country Link
WO (1) WO2017120414A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4089336A (en) * 1970-08-13 1978-05-16 Robert F. Shaw Electrically heated surgical cutting instrument and method of using the same
US4196734A (en) * 1978-02-16 1980-04-08 Valleylab, Inc. Combined electrosurgery/cautery system and method
US9101363B2 (en) * 2012-08-10 2015-08-11 William J. Zinnanti Cautery electrode with multi-channel insulated shaft
US20150268630A1 (en) * 2012-06-04 2015-09-24 Medhat Azzazy Ultra-High Resolution Digital Holographic Camera

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4089336A (en) * 1970-08-13 1978-05-16 Robert F. Shaw Electrically heated surgical cutting instrument and method of using the same
US4196734A (en) * 1978-02-16 1980-04-08 Valleylab, Inc. Combined electrosurgery/cautery system and method
US20150268630A1 (en) * 2012-06-04 2015-09-24 Medhat Azzazy Ultra-High Resolution Digital Holographic Camera
US9101363B2 (en) * 2012-08-10 2015-08-11 William J. Zinnanti Cautery electrode with multi-channel insulated shaft

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
SOROKO L.M., OSNOVY GOLOGRAFII I KOGERENTNOY OPTIKI, 1971, Moskva, pages 503, 504 *
V.P.RYABUKHO: "Filtratsiya prostranstvennykh chastot opticheskikh izobrazheny", SARATOV, 2004, pages 7 *

Also Published As

Publication number Publication date
WO2017120414A2 (en) 2017-07-13

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