DocumentCode :
3639227
Title :
Fixed pattern noise column drift compensation (CDC) for digital moving picture cameras
Author :
Michael Schöberl;Siegfried Fößel;André Kaup
Author_Institution :
Multimedia Communications and Signal Processing, University of Erlangen-Nuremberg, Cauerstr. 7, 91058, Germany
fYear :
2010
Firstpage :
573
Lastpage :
576
Abstract :
In CMOS image sensors tiny semiconductor variations cause a distortion of the image known as fixed pattern noise (FPN). With a good FPN compensation CMOS sensors can deliver very good image quality. Compensation algorithms differ in complexity, maximum frame rate, and compensation quality with thermal drift. This paper analyzes existing approaches to offset FPN compensation and their drawbacks. We also show a new compensation algorithm that offers fine grained per-pixel compensation and is able to compensate temperature variations while still operating at the maximum sensor frame rate. This enables the construction of motion picture cameras without active cooling or even temperature measurements while still delivering a high image quality at high frame rates.
Keywords :
"Noise","Temperature sensors","Calibration","Cameras","Pixel","Dark current"
Publisher :
ieee
Conference_Titel :
Image Processing (ICIP), 2010 17th IEEE International Conference on
ISSN :
1522-4880
Print_ISBN :
978-1-4244-7992-4
Type :
conf
DOI :
10.1109/ICIP.2010.5652732
Filename :
5652732
Link To Document :
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