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2010

Illumination-robust variational optical flow using cross-correlation

8 years 8 months ago
Illumination-robust variational optical flow using cross-correlation
We address the problem of variational optical flow for video processing applications that need fast operation and robustness to drastic variations in illumination. Recently, a solution [1] has been proposed based on the photometric invariants of the dichromatic reflection model [2]. However, this solution is only applicable to colour videos with brightness variations. Greyscale videos, or colour videos with colour illumination changes cannot be adequately handled. We propose two illumination-robust variational methods based on cross-correlation that are applicable to colour and grey-level sequences and robust to brightness and colour illumination changes. First, we present a general implicit nonlinear scheme that assumes no particular analytical form of energy functional and can accommodate different image components and data metrics, including cross-correlation. We test the nonlinear scheme on standard synthetic data with artificial brightness and colour effects added and conclude th...
József Molnár, Dmitry Chetverikov, S
Added 09 Dec 2010
Updated 09 Dec 2010
Type Journal
Year 2010
Where CVIU
Authors József Molnár, Dmitry Chetverikov, Sándor Fazekas
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