Dimensioning of optical birefringent anti-alias filters for digital cameras

Conference contribution
(Conference Contribution)


Publication Details

Author(s): Schöberl M, Schnurrer W, Oberdörster A, Fößel S, Kaup A
Publication year: 2010
Pages range: 4305-4308
ISBN: 9781424479948
ISSN: 2381-8549
Language: English


Abstract


A digital camera samples the continuous real world. As with any sampling process, questions of aliasing for certain sampling frequencies and the prevention thereof arise. In this paper we will discuss the spatial domain sampling and prevention of aliasing in digital cameras. We focus on the widely used birefringent anti alias filters that are often called optical low pass filters (OLPF). We show 2D models for all contributions to spatial domain sampling and derive optimum filter parameters for minimum aliasing and best possible image sharpness. Compared to previously used selection rules, we can show that the optimum selection of filter parameters can easily deliver more sharpness and reduce aliasing by a factor of 2. The simulated results are finally confirmed in real world experiments. © 2010 IEEE.


FAU Authors / FAU Editors

Kaup, André Prof. Dr.-Ing.
Lehrstuhl für Multimediakommunikation und Signalverarbeitung
Schnurrer, Wolfgang
Lehrstuhl für Multimediakommunikation und Signalverarbeitung
Schöberl, Michael
Lehrstuhl für Multimediakommunikation und Signalverarbeitung


External institutions
Fraunhofer-Institut für Integrierte Schaltungen (IIS)


How to cite

APA:
Schöberl, M., Schnurrer, W., Oberdörster, A., Fößel, S., & Kaup, A. (2010). Dimensioning of optical birefringent anti-alias filters for digital cameras. In Proceedings of the 2010 17th IEEE International Conference on Image Processing, ICIP 2010 (pp. 4305-4308). Hong Kong, CN.

MLA:
Schöberl, Michael, et al. "Dimensioning of optical birefringent anti-alias filters for digital cameras." Proceedings of the 2010 17th IEEE International Conference on Image Processing, ICIP 2010, Hong Kong 2010. 4305-4308.

BibTeX: 

Last updated on 2019-29-04 at 18:08