eHoloCam - an electronic holographic camera for subsea analysis

John Watson; Michael Antony Player; Hongyue Sun; David C. Hendry; H. Dong

doi:10.1109/OCEANS.2004.1405758

eHoloCam - an electronic holographic camera for subsea analysis

John Watson, Michael Antony Player, Hongyue Sun, David C. Hendry, H. Dong

Engineering

Research output: Contribution to conference › Other › peer-review

15 Citations (Scopus)

Abstract

Recently we have developed an underwater holographic camera for the analysis of plankton and other marine organisms. This camera (HoloMur) was unique in that it was able to record simultaneous in-line and off-axis holograms to cover
a range of sue of marine organisms from a few microns to tens of millimetres and at concentrations from a few particles per cubic centimetre to dense
aggregates. However, HoloMar suffered for being physically large and heavy and dificult to deploy. It also was based on the use of photographic emulsions to record the holograms. To overcome some of these difticulties we have started to develop a new holographic camera (eHoloCum) based on digital holography. Io electronic or digital holography (efblographg) an electronic hologram is directly
recorded onto a CCD or CMOS sensor and then numerically reconstructed by simulation of the optical hologram reconstruction. In this paper, we discuss some of the possible optical layouts and algorithms under consideration. We present some eHolograms produced in the laboratory prototypes of the eHoloCam

Original language	English
Pages	1248-1254
Number of pages	7
DOIs	https://doi.org/10.1109/OCEANS.2004.1405758
Publication status	Published - 2004

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title = "eHoloCam - an electronic holographic camera for subsea analysis",

abstract = "Recently we have developed an underwater holographic camera for the analysis of plankton and other marine organisms. This camera (HoloMur) was unique in that it was able to record simultaneous in-line and off-axis holograms to covera range of sue of marine organisms from a few microns to tens of millimetres and at concentrations from a few particles per cubic centimetre to denseaggregates. However, HoloMar suffered for being physically large and heavy and dificult to deploy. It also was based on the use of photographic emulsions to record the holograms. To overcome some of these difticulties we have started to develop a new holographic camera (eHoloCum) based on digital holography. Io electronic or digital holography (efblographg) an electronic hologram is directlyrecorded onto a CCD or CMOS sensor and then numerically reconstructed by simulation of the optical hologram reconstruction. In this paper, we discuss some of the possible optical layouts and algorithms under consideration. We present some eHolograms produced in the laboratory prototypes of the eHoloCam",

author = "John Watson and Player, {Michael Antony} and Hongyue Sun and Hendry, {David C.} and H. Dong",

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AU - Watson, John

AU - Player, Michael Antony

AU - Sun, Hongyue

AU - Hendry, David C.

AU - Dong, H.

PY - 2004

Y1 - 2004

N2 - Recently we have developed an underwater holographic camera for the analysis of plankton and other marine organisms. This camera (HoloMur) was unique in that it was able to record simultaneous in-line and off-axis holograms to covera range of sue of marine organisms from a few microns to tens of millimetres and at concentrations from a few particles per cubic centimetre to denseaggregates. However, HoloMar suffered for being physically large and heavy and dificult to deploy. It also was based on the use of photographic emulsions to record the holograms. To overcome some of these difticulties we have started to develop a new holographic camera (eHoloCum) based on digital holography. Io electronic or digital holography (efblographg) an electronic hologram is directlyrecorded onto a CCD or CMOS sensor and then numerically reconstructed by simulation of the optical hologram reconstruction. In this paper, we discuss some of the possible optical layouts and algorithms under consideration. We present some eHolograms produced in the laboratory prototypes of the eHoloCam

AB - Recently we have developed an underwater holographic camera for the analysis of plankton and other marine organisms. This camera (HoloMur) was unique in that it was able to record simultaneous in-line and off-axis holograms to covera range of sue of marine organisms from a few microns to tens of millimetres and at concentrations from a few particles per cubic centimetre to denseaggregates. However, HoloMar suffered for being physically large and heavy and dificult to deploy. It also was based on the use of photographic emulsions to record the holograms. To overcome some of these difticulties we have started to develop a new holographic camera (eHoloCum) based on digital holography. Io electronic or digital holography (efblographg) an electronic hologram is directlyrecorded onto a CCD or CMOS sensor and then numerically reconstructed by simulation of the optical hologram reconstruction. In this paper, we discuss some of the possible optical layouts and algorithms under consideration. We present some eHolograms produced in the laboratory prototypes of the eHoloCam

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eHoloCam - an electronic holographic camera for subsea analysis

Abstract

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