CONTENT-DRIVEN DIFFERENTIAL ENCODING OF AN ENHANCED IMAGE PYRAMID

被引:23
作者
BARONTI, S [1 ]
CASINI, A [1 ]
LOTTI, F [1 ]
ALPARONE, L [1 ]
机构
[1] UNIV FLORENCE,DIPARTIMENTO INGN ELETTRON,I-50139 FLORENCE,ITALY
关键词
IMAGE COMPRESSION; PROGRESSIVE TRANSMISSION; LAPLACIAN PYRAMID; DECIMATION INTERPOLATION FILTERS; CONTENT-DRIVEN DECISION;
D O I
10.1016/0923-5965(94)90006-X
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
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.
引用
收藏
页码:463 / 469
页数:7
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