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Analysis of processing pipelines in digital raw cameras

 
: Schöberl, Michael; Keinert, Joachim; Kaup, André; Foessel, Siegfried

:

Heuberger, A.; Elst, G.; Hanke, R. ; Fraunhofer-Institut für Integrierte Schaltungen -IIS-, Erlangen:
Microelectronic systems. Circuits, systems and applications
Berlin: Springer, 2011 (Informatik)
ISBN: 978-3-642-23070-7
ISBN: 3-642-23070-9
ISBN: 978-3-642-23071-4 (Online)
ISSN: 0863-503X
pp.281-296
English
Book Article
Fraunhofer IIS ()

Abstract
Traditionally, image and video processing algorithms start from an RGB image. However, current image sensors deliver camera raw data that needs additional processing and interpolation for conversion into an RGB representation. While recent research delivers important improvements in image quality for processing and reconstruction of raw images, these algorithms come with a heavy computational complexity. Consequently, they are not suited for mobile solutions such as cameras for media production, mobile phones or surveillance. Offline processing on the other hand offers both higher computational power and better flexibility and is well suited for executing those algorithms. The workflow for utilizing this enhanced quality thus requires a shift from camera centric imaging to new off-camera processing strategies. This requires a novel infrastructure for transportation and interchange and enables the possibility for development of even more sophisticated algorithms for processing of camera raw data. This contribution highlights the challenges and possibilities arising from the above mentioned paradigm shift. We discuss algorithms that should stay within the camera and algorithms that benefit from offloading. Our research contributes to the increase in image quality of workflows for future video applications.

: http://publica.fraunhofer.de/documents/N-204354.html