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Verfahren und Bilderfassungssystem zur achromatisierten Bildaufnahme von Objekten

Object image acquisition method for use in e.g. mobile telephone, involves correcting chromatic transverse aberrations by electronic and/or software-supported image post processing for respective wavelength regions
 
: Wippermann, F.; Schreiber, P.

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Frontpage ()

DE 102007001010 A: 20070102
DE 102007001010 A: 20070102
G03B0033
G03B0013
G03B0011
G02B0013
H04N0001
H04N0009
German
Patent, Electronic Publication
Fraunhofer IOF ()

Abstract
(A1) Die Erfindung betrifft ein Verfahren zur achromatisierten Bildaufnahme von Objekten durch sequentielle Aufnahmen einzelner Bilder fuer verschiedene Wellenlaengenbereiche. Ebenso betrifft die Erfindung ein hierfuer geeignetes Bilderfassungssystem, mit einem Objektiv, einem Bildsensor zur sequentiellen Aufnahme von Bildern fuer verschiedene Wellenlaengenbereiche sowie einer elektronischen oder softwaregestuetzten Bildnachbearbeitungseinheit.

 

DE 102007001010 A1 UPAB: 20080729 NOVELTY - The method involves correcting longitudinal color error to respective wavelength regions by focusing adapted to the wavelength regions. Chromatic transverse aberrations are corrected by an electronic and/or software-supported image post processing for the respective wavelength regions. The focusing is enabled by a lens (1) such as adaptive lens e.g. fluid lens, whose refraction power is changed. The wavelength regions are separated by application of wavelength filters with a polychromatic radiation source. USE - Method for image acquisition of an object by sequential recording of individual images for different wavelength region by a lens and an image sensor by an image acquisition system (claimed) i.e. camera system, in an electronic device such as mobile telephone and personal digital assistant (PDA). ADVANTAGE - The longitudinal color error to respective wavelength regions is corrected by focusing adapted to the wavelength regions, and the chromatic transverse aberrations are corrected by the electronic and/or software-supported image post processing for the respective wavelength regions, thus providing simplified lens installation, while enabling image acquisition without chromatic aberrations.

: http://publica.fraunhofer.de/documents/N-81971.html