Wavelet-based image coding using saliency map

Radoslav Vargic; Júlia Kučerová; Jaroslav Polec

doi:10.1117/1.JEI.25.6.061610

11 October 2016 Wavelet-based image coding using saliency map

Radoslav Vargic, Júlia Kučerová, Jaroslav Polec

Author Affiliations +

Funded by: COMENIANA metódy a prostriedky digitalizácie a prezentácie 3-D objektov kultúrneho dedičstva, Slovak Research Grant Agency VEGA

Journal of Electronic Imaging, Vol. 25, Issue 6, 061610 (October 2016). https://doi.org/10.1117/1.JEI.25.6.061610

Abstract

Visual information is very important in human perceiving of the surrounding world. During the observation of the considered scene, some image parts are more salient than others. This fact is conventionally addressed using the regions of interest approach. We are presenting an approach that captures the saliency information per pixel basis using one continuous saliency map for a whole image and which is directly used in the lossy image compression algorithm. Although for the encoding/decoding part of the algorithm, the notion region is not necessary anymore; the resulting method can, due to its nature, efficiently emulate large amounts of regions of interest with various significance. We provide reference implementation of this approach based on the set partitioning in hierarchical trees (SPIHT) algorithm and show that the proposed method is effective and has potential to achieve significantly better results in comparison to the original SPIHT algorithm. The approach is not limited to SPIHT algorithm and can be coupled with, e.g., JPEG 2000 as well.

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Radoslav Vargic, Júlia Kučerová, and Jaroslav Polec "Wavelet-based image coding using saliency map," Journal of Electronic Imaging 25(6), 061610 (11 October 2016). https://doi.org/10.1117/1.JEI.25.6.061610

Published: 11 October 2016

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