Video frames reconstruction based on time-frequency analysis and Hermite projection method

Authors:
Srdjan Stanković;Irena Orović;Andrey Krylov
Affiliations:
Faculty of Electrical Engineering, University of Montenegro, Podgorica, Montenegro;Faculty of Electrical Engineering, University of Montenegro, Podgorica, Montenegro;Faculty of Computational Mathematics and Cybernetics, Lomonosov Moscow State University, Moscow, Russia
Venue:
EURASIP Journal on Advances in Signal Processing - Special issue on time-frequency analysis and its applications to multimedia signals
Year:
2010

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Abstract

A method for temporal analysis and reconstruction of video sequences based on the time-frequency analysis and Hermite projection method is proposed. The S-method-based time-frequency distribution is used to characterize stationarity within the sequence. Namely, a sequence of DCT coefficients along the time axes is used to create a frequency-modulated signal. The reconstruction of nonstationary sequences is done using the Hermite expansion coefficients. Here, a small number of Hermite coefficients can be used, which may provide significant savings for some video-based applications. The results are illustrated with video examples.