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Proceedings Paper

Analytical model of autofocus systems with CCD camera
Author(s): Wolfgang Kesseler; Jan Fischer
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Paper Abstract

In the following, an analytical model for the optical imaging will be presented that completely describes the optical transfer pathway from the original object to the in- focus as well as to the out-of-focus projection. According to this, both the diffraction theory and the Gaussian beam theory (geometrical optics) will be taken into account. The results show that noticeable differences between these theories are found near the focal plane only. The model is generally applicable and therefore valid for projection type displays and acquisition devices (cameras).

Paper Details

Date Published: 15 May 2000
PDF: 12 pages
Proc. SPIE 3965, Sensors and Camera Systems for Scientific, Industrial, and Digital Photography Applications, (15 May 2000); doi: 10.1117/12.385454
Show Author Affiliations
Wolfgang Kesseler, Aachen Univ. of Technology (Germany)
Jan Fischer, Aachen Univ. of Technology (Germany)


Published in SPIE Proceedings Vol. 3965:
Sensors and Camera Systems for Scientific, Industrial, and Digital Photography Applications
Morley M. Blouke; Nitin Sampat; Thomas Yeh; Nitin Sampat; George M. Williams; Thomas Yeh, Editor(s)

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