Distortion definition and correction in off-axis systems
Date Issued
2015
Author(s)
Abstract
Off-axis optical configurations are becoming more and more used in a variety of applications, in particular they are the most preferred solution for cameras devoted to Solar System planets and small bodies (i.e. asteroids and comets) study. Off-axis designs, being devoid of central obstruction, are able to guarantee better PSF and MTF performance, and thus higher contrast imaging capabilities with respect to classical on-axis designs. In particular they are suitable for observing extended targets with intrinsic low contrast features, or scenes where a high dynamical signal range is present. Classical distortion theory is able to well describe the performance of the on-axis systems, but it has to be adapted for the off-axis case. A proper way to deal with off-axis distortion definition is thus needed together with dedicated techniques to accurately measure and hence remove the distortion effects present in the acquired images. In this paper, a review of the distortion definition for off-axis systems will be given. In particular the method adopted by the authors to deal with the distortion related issues (definition, measure, removal) in some off-axis instruments will be described in detail.
Coverage
Optical Systems Design 2015: Optical Design and Engineering VI
All editors
Mazuray,Laurent; Wartmann, Rolf; Wood, Andrew P.
Series
Volume
9626
Start page
962634
Conferenece
SPIE OPTICAL SYSTEMS DESIGN
Conferenece place
Jena/ Germany
Conferenece date
7-10 September 2015
Issn Identifier
0277-786X
Ads BibCode
2015SPIE.9626E..34D
Rights
open.access
File(s)![Thumbnail Image]()
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Name
2015_DaDeppo_Distortion definition and correction in off-axis systems.PDF
Description
Preliminary distortion analisys for SIMBIO-SYS/STC stereo camera
Size
583.72 KB
Format
Adobe PDF
Checksum (MD5)
06367a89cd8093be32c6bf28ed081e20