Phase manipulation and optoelectronic reconstruction of digital holograms by means of LCOS spatial light modulator

Michałkiewicz, Aneta; Kujawińska, Małgorzata; Sałbut, Leszek; Wang, Xinghua; Bos, Philip J.

doi:10.1117/12.611619

Cited by 25 publications

(13 citation statements)

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“…Sensitivity vector depends on the angles between one of the illumination directions and a reference beam direction. In order to simplify the calcula- tions we describe DH system which provides in-plane displacement u(x,y) and out-of-plane displacement w(x,y) from two pairs of holograms captured before and after loading [3]. The specimen is illuminated symmetrically by the beams impinging from the left S ill and the right S ilr directions (Fig.…”

Section: Holocamera For Arbitrary Displacement Vector Measurementmentioning

confidence: 99%

“…The hardware and software solutions are different for both systems and therefore in order to provide the user friendly cameras for mechanical engineers, two separate devices have been designed and built, i.e., DH_SHAPE and DH_UVW. Also, for specific applications, the cameras are equipped with the remote data transfer and used for both numerical or optoelectronic distance reconstruction systems [3,7].…”

Section: Principles Of Digital Holographic Interferometrymentioning

confidence: 99%

“…It also allows for distant monitoring of an object and its remote, optoelectronic reconstruction [3,4]. Proper manipulation of phases, which is equivalent or goes beyond the conventional holographic interferometry [5,6] provides information about shape of an object, its out-of-plane and in-plane displacements during internal or external loading [3,7,8].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Digital holographic cameras and data processing for remote monitoring and measurements of mechanical parts

Michałkiewicz

Kujawińska

Stasiewicz

2008

Opto-Electronics Review

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Fast growing technology and requirements for testing of different types of materials and devices require new methods and systems for investigation of their parameters. Among the quantities of high interest are shape, deformation, roughness, local materials constants, displacement, and strain fields of elements under load. In the paper, we present novel solutions for digital holographic cameras, which allow for remote monitoring and measurement of the above mentioned quantities at small mechanical objects or at restricted areas of interest at big structures. The systems have compact design, “black box” measurement approach, and allows for fast and accurate measurements performed directly at the element and often in outdoor environment. The principles of digital and optoelectronic reconstruction and phase manipulation are described together with the exemplary measurement results obtained by means of the cameras presented.

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Section: Holocamera For Arbitrary Displacement Vector Measurementmentioning

confidence: 99%

Section: Principles Of Digital Holographic Interferometrymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Digital holographic cameras and data processing for remote monitoring and measurements of mechanical parts

Michałkiewicz

Kujawińska

Stasiewicz

2008

Opto-Electronics Review

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“…Looking further into the future, another technology could potentially offer more realistic 3D capture and display: Digital Holography (DH) [5][6][7][8][9][10][11][12]. This imaging process allows the full wavefield information; amplitude and phase, to be recorded.…”

Section: Introductionmentioning

confidence: 99%

Digital Holographic Capture and Optoelectronic Reconstruction for 3D Displays

Kelly

Monaghan

Pandey

et al. 2010

International Journal of Digital Multimedia Broadcasting

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The application of digital holography as a viable solution to 3D capture and display technology is examined. A review of the current state of the field is presented in which some of the major challenges involved in a digital holographic solution are highlighted. These challenges include (i) the removal of the DC and conjugate image terms, which are features of the holographic recording process, (ii) the reduction of speckle noise, a characteristic of a coherent imaging process, (iii) increasing the angular range of perspective of digital holograms (iv) and replaying captured and/or processed digital holograms using spatial light modulators. Each of these challenges are examined theoretically and several solutions are put forward. Experimental results are presented that demonstrate the validity of the theoretical solutions.

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“…However the limited number of pixels on a modern CCD camera (as well as the relatively large spacing between adjacent pixels in contrast to a comparable recording on typical photographic film) imposes a severe limitation on the spatial resolution of the captured digital holograms. High spatial resolution in digital holograms is important for accurately recording and replaying 3D scenes [7,8].…”

Section: Introductionmentioning

confidence: 99%