Using paraxial Fresnel diffraction formula, the relation between input and output function of a single spherical refracting system was derived. It is shown that fractional Fourier transform can be implemented on such optical system. Based on the property of fractional Fourier transform and coordinat
✦ LIBER ✦
Fractional Fourier transforms and imaging
✍ Scribed by Bernardo, Luíis M.; Soares, Oliverio D. D.
- Book ID
- 115387327
- Publisher
- Optical Society of America
- Year
- 1994
- Tongue
- English
- Weight
- 517 KB
- Volume
- 11
- Category
- Article
- ISSN
- 1084-7529
No coin nor oath required. For personal study only.
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A novel encryption for optical image based on multistage fractional Fourier transforms (FRTs) and pixel scrambling technique is presented in this paper. The principle of pixel scrambling is described and an optical approach to realize the pixel scrambling and decoding is also proposed. Numerical sim