2015
DOI: 10.6109/jkiice.2015.19.5.1180
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Quad-tree Subband Quantizer Design for Digital Hologram Encoding based on Fresenelet

Abstract: In this paper, we propose a new subband quantizer which is a type of quad-tree for applying to digital hologram compression based on Fresenelet transform. After executing Fresnelet transform to the captured digital holgoram, we analyze effect of the designed quantizer for the reconstructed objects from analyzing average energy of each coefficient and visual importance in all subbands. We analyze distribution of coefficient and set dynamic range for each subband, and then design subband quantizer. For enhancing… Show more

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