An adaptive scheme employing pyramid structures 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
Stefano Baronti;Andrea Casini;Franco Lotti;Luciano Alparone
1994
Abstract
An adaptive scheme employing pyramid structures 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.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
