The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Este artigo apresenta um banco de filtros paraunitário (PUFB) baseado em uma estrutura de levantamento direto de um bloco de construção e sua transformada inversa para codificação de imagens sem perdas para perdas. Embora os bancos de filtros baseados em elevação convencionais (LBFBs), que são construídos por estruturas de elevação com coeficientes inteiros e operações de arredondamento, sofram com a degradação do desempenho de codificação devido a muitos erros de arredondamento gerados por estruturas de elevação em cascata, nossas propostas podem ser aplicadas a qualquer PUFB. sem perder muitos porque os blocos de construção podem ser aplicados a cada bloco de elevação tal como estão. É construído com estruturas muito simples e muitas operações de arredondamento são eliminadas. Além disso, o número de operações de arredondamento é reduzido ainda mais usando a transformação de bloco bidimensional (2DBT) de transformação separada para cada bloco de construção. Como resultado, embora os PUFBs propostos exijam um pequeno bloco de informações laterais (SIB), eles apresentam melhor desempenho de codificação na codificação de imagens sem perdas a perdas do que os convencionais.
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Taizo SUZUKI, Masaaki IKEHARA, "M-Channel Paraunitary Filter Banks Based on Direct Lifting Structure of Building Block and Its Inverse Transform for Lossless-to-Lossy Image Coding" in IEICE TRANSACTIONS on Fundamentals,
vol. E93-A, no. 8, pp. 1457-1464, August 2010, doi: 10.1587/transfun.E93.A.1457.
Abstract: This paper presents a paraunitary filter bank (PUFB) based on a direct lifting structure of a building block and its inverse transform for lossless-to-lossy image coding. Although the conventional lifting-based filter banks (LBFBs), which are constructed by lifting structures with integer coefficients and rounding operations, suffer from degradation of coding performance due to much rounding error generated by cascading lifting structures, our proposals can be applied to any PUFB without losing many ones because building blocks can be applied to every lifting block as it is. It is constructed with very simple structures and many rounding operations are eliminated. Additionally, the number of rounding operations is reduced more by using two-dimensional block transform (2DBT) of separated transform to each building block. As result, even though the proposed PUFBs require a little side information block (SIB), they show better coding performance in lossless-to-lossy image coding than the conventional ones.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E93.A.1457/_p
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@ARTICLE{e93-a_8_1457,
author={Taizo SUZUKI, Masaaki IKEHARA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={M-Channel Paraunitary Filter Banks Based on Direct Lifting Structure of Building Block and Its Inverse Transform for Lossless-to-Lossy Image Coding},
year={2010},
volume={E93-A},
number={8},
pages={1457-1464},
abstract={This paper presents a paraunitary filter bank (PUFB) based on a direct lifting structure of a building block and its inverse transform for lossless-to-lossy image coding. Although the conventional lifting-based filter banks (LBFBs), which are constructed by lifting structures with integer coefficients and rounding operations, suffer from degradation of coding performance due to much rounding error generated by cascading lifting structures, our proposals can be applied to any PUFB without losing many ones because building blocks can be applied to every lifting block as it is. It is constructed with very simple structures and many rounding operations are eliminated. Additionally, the number of rounding operations is reduced more by using two-dimensional block transform (2DBT) of separated transform to each building block. As result, even though the proposed PUFBs require a little side information block (SIB), they show better coding performance in lossless-to-lossy image coding than the conventional ones.},
keywords={},
doi={10.1587/transfun.E93.A.1457},
ISSN={1745-1337},
month={August},}
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TY - JOUR
TI - M-Channel Paraunitary Filter Banks Based on Direct Lifting Structure of Building Block and Its Inverse Transform for Lossless-to-Lossy Image Coding
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1457
EP - 1464
AU - Taizo SUZUKI
AU - Masaaki IKEHARA
PY - 2010
DO - 10.1587/transfun.E93.A.1457
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E93-A
IS - 8
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - August 2010
AB - This paper presents a paraunitary filter bank (PUFB) based on a direct lifting structure of a building block and its inverse transform for lossless-to-lossy image coding. Although the conventional lifting-based filter banks (LBFBs), which are constructed by lifting structures with integer coefficients and rounding operations, suffer from degradation of coding performance due to much rounding error generated by cascading lifting structures, our proposals can be applied to any PUFB without losing many ones because building blocks can be applied to every lifting block as it is. It is constructed with very simple structures and many rounding operations are eliminated. Additionally, the number of rounding operations is reduced more by using two-dimensional block transform (2DBT) of separated transform to each building block. As result, even though the proposed PUFBs require a little side information block (SIB), they show better coding performance in lossless-to-lossy image coding than the conventional ones.
ER -