The robust estimation of multiple motions: parametric and piecewise-smooth flow fields
Computer Vision and Image Understanding
Unsupervised Segmentation of Color-Texture Regions in Images and Video
IEEE Transactions on Pattern Analysis and Machine Intelligence
Mean Shift: A Robust Approach Toward Feature Space Analysis
IEEE Transactions on Pattern Analysis and Machine Intelligence
Restoration of historic film for digital compression: a case study
ICIP '95 Proceedings of the 1995 International Conference on Image Processing (Vol.2)-Volume 2 - Volume 2
IEEE Transactions on Pattern Analysis and Machine Intelligence
Movie and video scale-time equalization application to flicker reduction
IEEE Transactions on Image Processing
Correction of intensity flicker in old film sequences
IEEE Transactions on Circuits and Systems for Video Technology
Flicker correction for archived film sequences using a nonlinear model
IEEE Transactions on Circuits and Systems for Video Technology
Stabilization of Flicker-Like Effects in Image Sequences through Local Contrast Correction
SIAM Journal on Imaging Sciences
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A new approach for the compensation of temporal brightness variations (commonly referred to as flicker) in archived film sequences is presented. The proposed method uses fundamental principles of photographic image registration to provide adaptation to temporal and spatial variations of picture brightness. The main novelty of this work is the use of spatial segmentation to identify regions of homogeneous brightness for which reliable estimation of flicker parameters can be obtained. Additionally our scheme incorporates an efficient mechanism for the compensation of long duration film sequences while it addresses problems arising from varying scene motion and illumination using a novel motion-compensated grey-level tracing approach. We present experimental evidence which suggests that our method offers high levels of performance and compares favourably with competing state-of-the-art techniques.