Dr. Darun Kesrarat Profile

Dr. Darun Kesrarat

at Assumption Univ

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Proceedings Article | 8 February 2017 Paper

Robust optical flow using adaptive Lorentzian filter for image reconstruction under noisy condition

Darun Kesrarat, Vorapoj Patanavijit

Proceedings Volume 10225, 102251F (2017) https://doi.org/10.1117/12.2266724

KEYWORDS: Optical flow, Optical filters, Tolerancing, Linear filtering, Digital filtering, Image filtering, Video, Performance modeling, Signal to noise ratio, Video compression

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In optical flow for motion allocation, the efficient result in Motion Vector (MV) is an important issue. Several noisy conditions may cause the unreliable result in optical flow algorithms. We discover that many classical optical flows algorithms perform better result under noisy condition when combined with modern optimized model. This paper introduces effective robust models of optical flow by using Robust high reliability spatial based optical flow algorithms using the adaptive Lorentzian norm influence function in computation on simple spatial temporal optical flows algorithm. Experiment on our proposed models confirm better noise tolerance in optical flow’s MV under noisy condition when they are applied over simple spatial temporal optical flow algorithms as a filtering model in simple frame-to-frame correlation technique. We illustrate the performance of our models by performing an experiment on several typical sequences with differences in movement speed of foreground and background where the experiment sequences are contaminated by the additive white Gaussian noise (AWGN) at different noise decibels (dB). This paper shows very high effectiveness of noise tolerance models that they are indicated by peak signal to noise ratio (PSNR).

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