Real-time optical image subtraction and edge enhancement using ferroelectric liquid-crystal devices based on speckle modulation

Applied Optics

Volumn 35, Issue 17, 1996, Pages 3148-3154

  Lin, Xin ^a,b   Ohtsubo, Junji ^a,c   Takemori, Tamiki ^d  

^a SHIZUOKA UNIVERSITY   (Japan)

^b Shizuoka University   (Japan)

^c Faculty of Engineering   (Japan)

^d CENTRAL RESEARCH LABORATORY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

COMPUTER CONTROL; FERROELECTRIC MATERIALS; FOURIER TRANSFORMS; HELIUM NEON LASERS; IMAGE PROCESSING; IMAGING SYSTEMS; LIQUID CRYSTALS; OPTICAL FILTERS; OPTICAL SWITCHES; OPTICAL TRANSFER FUNCTION; SPECKLE;

BIREFRINGENT PLATE; EDGE ENHANCEMENT; FERROELECTRIC LIQUID CRYSTAL DEVICES; OPTICAL IMAGE SUBTRACTION; POLARIZATION SWITCHES; SPECKLE MODULATION;

LIGHT MODULATORS;

EID: 0030166139     PISSN: 1559128X     EISSN: 21553165     Source Type: Journal    
DOI: 10.1364/AO.35.003148     Document Type: Article

References (22)

1. S. Debrus, M. Françon, and P. Koulev, “Extraction de la différence entre deux images,” Nouv. Rev. Opt. 5, 153-168 (1974).
2. M. Françon, Laser Speckle and Applications in Optics (Academic, New York, 1979).
3. E. Marom and I. Kasher, “Optimal distribution of multiple exposures in speckled image subtraction setups,” J. Opt. 8, 5-13 (1977).
4. J. P. Sharpe and K. M. Johnson, “Particle image velocimetry fringe processing using an optically addressed spatial light modulator,”Appl. Opt. 31, 7399-7401 (1992).
5. D. Cunningham, J. Sharpe, and K. M. Johnson, “Application of an optically addressed spatial light modulator to real-time speckle photography,” Opt. Commun. 101, 311-316 (1993).
6. X. Lin, J. Ohtsubo, and T. Takemori, “Real-time optical speckle JTC using FLC-SLM,” Rep. Grad. School Electron. Sci. Technol. Shizuoka Univ. 16, 133-118 (1995).
7. C. C. Mao, K. M. Johnson, and G. Moddel, “Optical phase conjugation using optically addressed chiral smectic liquid crystal spatial light modulators,” Ferroelectrics 114, 45-53 (1991).
8. S. Fukushima, T. Kurokawa, and M. Ohno, “Real-time hologram construction and reconstruction using a high-resolution spatial light modulator,”Appl. Phys. Lett. 58, 787-789 (1991).
9. D. C. O’Brien, R. J. Mears, T. D. Wilkinson, and W. A. Crosslan, “Dynamic holographic interconnects that use ferroelectric liquid-crystal spatial light modulators,”Appl. Opt. 33, 2795-2803 (1994).
10. C. M. Gomes, H. Sekine, T. Yamazaki, and S. Kobayashi, “Bipolar optical neural networks using ferroelectric liquid crystal devices,”Neural Networks 5, 169-177 (1992).
11. J. W. Goodman, Introduction to Fourier Optics (McGraw-Hill, San Francisco, 1968), p. 124.
12. R. C. Gonzales and P. Winz, Digital Image Processing (Addison-Wesley, Reading, Mass., 1977), p. 115.
13. S. Fukushima, T. Kurokawa, S. Matsuo, and H. Kozawaguchi, “Bistable spatial light modulator using a ferroelectric liquid crystal,”Opt. Lett. 15, 285-287 (1990).
14. T. Kurokawa and S. Fukushima, “Spatial light modulators using ferroelectric liquid crystal,” Opt. Quantum Electron. 24, 1151-1163 (1992).
15. T. S. Chao, “A spatial light modulator-based optoelectronic associative memory,” in Spatial Light Modulators and Their Applications, Vol. 14 of OSA 1990 Technical Digest Series (Optical Society of America, Washington, D.C., 1990), pp. 28-31.
16. J. P. Sharpe, P. R. Barbier, G. Moddel, and K. M. Johnson, “Fringe visibility improvement using an asynchronous imagesubtracting optically addressed spatial light modulator,”Appl. Opt. 34, 4013-4021 (1995).
17. H. Sakai and J. Ohtsubo, “Image subtraction using polarization modulation of liquid-crystal television,” Appl. Opt. 31, 6852-6858 (1992).
18. C. C. Mao, K. M. Johnson, R. Turner, D. Jared, and D. Doroski, “Applications of binary and analogy hydrogenated amorphous silicon/ferroelectric liquid-crystal optically addressed spatial light modulators,”Appl. Opt. 31, 3908-3916 (1992).
19. T. H. Chao, “Real time optical edge enhancement using a Hughes liquid crystal light valve,” Appl. Opt. 28, 4727-4731 (1989).
20. D. Armitage and J. I. Thackara, “Photoaddressed liquid crystal edge-enhancing spatial light modulator,” Appl. Opt. 28, 219-225 (1989).
21. J. Feinberg, “Real-time edge enhancement using the photorefractive effect,” Opt. Lett. 5, 330-332 (1980).
22. J. P. Huignard and J. P. Herriau, “Real-time coherent object edge reconstruction with Bi12SiO20 crystals,” Appl. Opt. 17, 2671-2672 (1978)