Improvement methods of reconstruction process in digital holography

• Autorzy: Paśko S. , Jóźwicki R.
• Konferencja: The Fourth Scientific Symposium on Image Processing Technology. TPO 2002 ; (21.11-23.11.2002 ; Serock, Poland)
• Języki publikacji: EN

Abstrakty

EN

Problems of quality improvement in holographic images and a reconstruction time reduction are discussed. The convolution and Fresnel approaches are presented. For both methods the algorithm improvement is proposed. Basing on a special transmittance function calculation, a computation time significantly decreases. For the Fresnel approximation, an autocorrelation factor from the reconstructed image is removed. The presented ideas are illustrated by exemplary images for each step of computation. Advantages and disadvantages of the methods are discussed.

Słowa kluczowe

EN

digital holography; convolution approach; response function; image filtration

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2003
• Tom: Vol. 11, No. 3
• Strony: 203--209
• Opis fizyczny: Bibliogr. 7 poz., fot., rys.

Twórcy

autor

Paśko S.

• Institute of Micromechanics and Photonics, Warsaw University of Technology, 8 Boboli Str., 02-525 Warsaw, Poland

autor

Jóźwicki R.

• Institute of Micromechanics and Photonics, Warsaw University of Technology, 8 Boboli Str., 02-525 Warsaw, Poland

Bibliografia

• 1. L.P. Jarosławski and N.S. Merzljakow, "Methods of digital holography", Consultants Bureau, New York, 1980.
• 2. T. Kreis and W. Jupner, "Principles of digital holography", Proc. Fringe 97, 353-363 (1997).
• 3. T. Kreis and W. Jupner, "Suppression of dc term in digital holography", Opt. Eng. 36, 2357-2360 (1997).
• 4. S. Seebacher, W. Osten, and W. Juptner, "Measuring shape and deformation of small objects using digital holography", Proc. SPIE 3479, 104-115 (1998).
• 5. E. Cuche, P. Marquet, and C. Depeursinge, "Spatial filtering for zero-order and twin-image elimination in digital off-axis holography", Appl. Optics 39, 4070-4075 (2000).
• 6. G. Pedrini, P. Froning, H. Fessler, and HJ. Tiziani, "In-line digital holographic interferometry", Appl. Optics 37, 6262-6269 (1998).
• 7. S. Paśko and R. Jóźwicki, "Novel Fourier approach to digital holography", Opto-Electron. Rev. 10, 89-95 (2002).