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Please use this identifier to cite or link to this item: http://hdl.handle.net/2262/24719

Title: Localised deflicker of moving images
Other Titles: 3rd European Conference on Visual Media Production
Author: KOKARAM, ANIL CHRISTOPHER
PITIE, FRANCOIS
Author's Homepage: http://people.tcd.ie/akokaram
http://people.tcd.ie/pitief
Keywords: deflicker
in-scene deflicker
digital video
calibration settings
restoration
Issue Date: 2006
Citation: F. Pitie; B. Kent; B. Collis; A. C. Kokaram;, Localised deflicker of moving images, 3rd European Conference on Visual Media Production, 2006, 2006, 134, 143
Abstract: Brightness fluctuations in sequences are a typical impairment in archive and modern footage. These fluctuations are mainly temporal but they may also present spatial variations across each individual frame. Current deflicker techniques consider that these variations are smooth but this paper shows that the flicker localisation can be very fine in some cases. This paper presents a deflicker algorithm that is able to handle within a same framework both very smooth spatial variations and very localised variations. The core of the method lies in the parametrisation of the flicker model with only one parameter per pixel. The viability of using such a fine parametrisation is made possible by employing a temporal filtering that effectively separates occlusions from the flicker estimation.
Description: PUBLISHED
URI: http://ieeexplore.ieee.org/iel5/4155992/4155993/04156021.pdf?tp=&isnumber=4155993&arnumber=4156021&punumber=4155992
http://hdl.handle.net/2262/24719
Related links: http://ieeexplore.ieee.org/iel5/4155992/4155993/04156021.pdf?tp=&isnumber=4155993&arnumber=4156021&punumber=4155992
Appears in Collections:Electronic & Electrical Eng (Scholarly Publications)

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