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High dynamic range video by spatially non-regular optical filtering

: Schöberl, M.; Belz, A.; Seiler, J.; Foessel, S.; Kaup, A.


IEEE Signal Processing Society; Institute of Electrical and Electronics Engineers -IEEE-:
19th IEEE International Conference on Image Processing, ICIP 2012. Vol.4 : Lake Buena Vista, Orlando, Florida, USA, 30 September - 3 October 2012; proceedings
New York, NY: IEEE, 2012
ISBN: 978-1-4673-2534-9 (print)
ISBN: 978-1-4673-2532-5 (online)
ISBN: 978-1-4673-2533-2
International Conference on Image Processing (ICIP) <19, 2012, Orlando/Fla.>
Fraunhofer IIS ()

We present a new method for capturing high dynamic range video (HDRV). Our method is based on spatially varying exposures, where individual pixels are covered with filters for different optical attenuation. For preventing the loss in resolution we use a new non- regular arrangement of the attenuation pattern. Subsequent image reconstruction based on the sparsity assumption allows the recon- struction of natural images with high detail. Index Terms High Dynamic Range Image Sensor, Digital Camera, Resolution Enhancement, Sparsity