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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 14 — May. 10, 2006
  • pp: 3275–3282

Description of the transfer function of an optical system with wavelet transforms

Liying Tan, Jing Ma, and Qi Wang  »View Author Affiliations


Applied Optics, Vol. 45, Issue 14, pp. 3275-3282 (2006)
http://dx.doi.org/10.1364/AO.45.003275


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Abstract

According to the wavefront filtering idea of wavelet optics, the transfer function of an optical system is described with a wavelet scale function. In the transfer function described with a wavelet scale function, different scale parameters a,c and shift parameters b,d correspond to different subtransfer functions, which correspond to different situations of the optical system. According to the request of the optical system, by adjusting all these scale parameters, not only can we obtain the optical images under different conditions, but we can also obtain the singular points under this scale parameter; hence a more ideal output can be obtained by such processing. The transfer function described with a wavelet scale function can be adjusted according to the request of the optical system, which makes the described transfer function self-adjustable. According to all types of disturbing effects to the system, by adjusting the scale and shift parameters, the practical form of the transfer function of an optical system can be confirmed, which satisfies the request of the self-adjustability of the optical imaging system. The result of our analysis shows that describing the transfer function of an optical system with a wavelet scale function is not only feasible but also satisfies the request of the self-adjustability of the optical imaging system, and different optical systems can be described by different wavelet scale parameters. This work breaks from the formal additional describing mode of the transfer function of an optical system and makes description of the transfer function of an optical system convenient.

© 2006 Optical Society of America

OCIS Codes
(100.7410) Image processing : Wavelets
(110.4850) Imaging systems : Optical transfer functions

History
Original Manuscript: March 7, 2005
Revised Manuscript: August 29, 2005
Manuscript Accepted: October 24, 2005

Citation
Liying Tan, Jing Ma, and Qi Wang, "Description of the transfer function of an optical system with wavelet transforms," Appl. Opt. 45, 3275-3282 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-14-3275

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