Detail publikace

The Lossless Compression by Polyphase Filtering In The Fourteenth International Scientific and Applied Science Conference ELECTRONICS ET'2005 TU-Sofia

VRÁNA, J.

Originální název

The Lossless Compression by Polyphase Filtering In The Fourteenth International Scientific and Applied Science Conference ELECTRONICS ET'2005 TU-Sofia

Typ

abstrakt

Jazyk

angličtina

Originální abstrakt

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. Lifting algorithm 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 wavelets 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.

Klíčová slova v angličtině

wavelet transform;compression;lifting

Autoři

VRÁNA, J.

Vydáno

21. 9. 2005

Nakladatel

Educational Sports and Recovery Complex of the TU-Sofia

Místo

Sozopol

Strany od

13

Strany do

13

Strany počet

1

BibTex

@misc{BUT60461,
  author="Jaroslav {Vrána}",
  title="The Lossless Compression by Polyphase Filtering In The Fourteenth International Scientific and Applied Science Conference ELECTRONICS ET'2005 TU-Sofia",
  booktitle="ELECTRONICS ET'2005",
  year="2005",
  volume="14",
  pages="1",
  publisher="Educational Sports and Recovery Complex of the TU-Sofia",
  address="Sozopol",
  note="abstract"
}