Paper
15 May 2000 Analytical model of autofocus systems with CCD camera
Wolfgang Kesseler, Jan Fischer
Author Affiliations +
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).
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Wolfgang Kesseler and Jan Fischer "Analytical model of autofocus systems with CCD camera", Proc. SPIE 3965, Sensors and Camera Systems for Scientific, Industrial, and Digital Photography Applications, (15 May 2000); https://doi.org/10.1117/12.385454
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Cited by 7 scholarly publications.
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KEYWORDS
Diffraction

Systems modeling

Spatial frequencies

Imaging systems

Sensors

Feedback loops

Geometrical optics

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