An adaptive scheme employing pyramid structure is proposed for multiresolution encoding of still pictures. Efficiency is increased by designing a low-entropy pyramid decomposition by means of different reduction/expansion filters, and also by giving encoding priority to important features through a content-driven decision rule. Quantization error feed-back performed along the pyramid levels ensures lossless reconstruction capability and improves the robustness of the algorithm
Content-driven differential encoding of an enhanced image pyramid / BARONTI S.; CASINI A.; LOTTI F.; L. ALPARONE. - In: SIGNAL PROCESSING-IMAGE COMMUNICATION. - ISSN 0923-5965. - STAMPA. - 6:(1994), pp. 463-469. [10.1016/0923-5965(94)90006-X]
Content-driven differential encoding of an enhanced image pyramid
ALPARONE, LUCIANO
1994
Abstract
An adaptive scheme employing pyramid structure is proposed for multiresolution encoding of still pictures. Efficiency is increased by designing a low-entropy pyramid decomposition by means of different reduction/expansion filters, and also by giving encoding priority to important features through a content-driven decision rule. Quantization error feed-back performed along the pyramid levels ensures lossless reconstruction capability and improves the robustness of the algorithm
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