Bezeztrátová komprese dat pomocí polyfázových filtrů

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F06%3APU54829" target="_blank" >RIV/00216305:26220/06:PU54829 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The Lossless Compression by Polyphase Filtering

Popis výsledku v původním jazyce

In this paper a dual channel mirrored filter bank and condition for their perfect reconstruction are described. The filter bank may be used in wavelet transform computing. Description of wavelet transform computing algorithm named lifting follow. Liftingalgorithm is faster method of wavelet transform computing. The basis of this algorithm is in replacing all filters by their polyphase equivalents. The polyphase equivalents are transformed to individual lifting steps. A condition, which the individual lifting steps must fulfill, are obtained by analysis of this structure. The conditions are computed for one dual lifting and one primal lifting and two dual lifting and one primal lifting. The wavelets are simply computed from the conditions. If those w avelets are used in filter bank then the filter bank is filter bank with perfect reconstruction. A wavelet can be designed from these conditions and it can be adapted and used for lossless data compression.

Název v anglickém jazyce

The Lossless Compression by Polyphase Filtering

Popis výsledku anglicky

In this paper a dual channel mirrored filter bank and condition for their perfect reconstruction are described. The filter bank may be used in wavelet transform computing. Description of wavelet transform computing algorithm named lifting follow. Liftingalgorithm is faster method of wavelet transform computing. The basis of this algorithm is in replacing all filters by their polyphase equivalents. The polyphase equivalents are transformed to individual lifting steps. A condition, which the individual lifting steps must fulfill, are obtained by analysis of this structure. The conditions are computed for one dual lifting and one primal lifting and two dual lifting and one primal lifting. The wavelets are simply computed from the conditions. If those w avelets are used in filter bank then the filter bank is filter bank with perfect reconstruction. A wavelet can be designed from these conditions and it can be adapted and used for lossless data compression.

Druh

D - Stať ve sborníku

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Electronics ET'2005

ISBN

9544385177

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

31-36

Název nakladatele

TU-Sofia

Místo vydání

Sofia

Místo konání akce

Sozopol

Datum konání akce

21. 9. 2005

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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