Fast communication: Motion based video super resolution using edge directed interpolation and complex wavelet transform

Authors:
S. Izadpanahi;H. Demirel
Affiliations:
Department of Electrical and Electronic Engineering, Eastern Mediterranean University, Gazimağusa, via Mersin-10, Turkey;Department of Electrical and Electronic Engineering, Eastern Mediterranean University, Gazimağusa, via Mersin-10, Turkey
Venue:
Signal Processing
Year:
2013

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Abstract

This paper proposes a novel super resolution technique using dual tree complex wavelet transform (DT-CWT) and new edge directional interpolation (NEDI) based on localizing motion blocks in consecutive frames. A super resolution process is applied on the extracted motion blocks and the static region of the frame to generate the low frequency subbands of DT-CWT. DT-CWT decomposition followed by NEDI generates the high frequency subbands in order to obtain the components required for inverse DT-CWT (IDT-CWT). Finally, the super resolved output frame is generated by composing the obtained high and low frequency subbands using IDT-CWT. Experimental results based on PSNR measures illustrate the advantage of proposed technique over the state of the art video resolution enhancement methods.