Szczegóły publikacji

Opis bibliograficzny

DCT-IIIe based wavelet-like decomposition-reconstruction procedure with windowing for two-dimensional data – case study / Przemysław KOROHODA, Adam Dąbrowski // W: SPA 2013 : Signal Processing : Algorithms, Architectures, Arrangements, and Applications : Poznań, 26–28th September 2013 : conference proceedings / IEEE The Institute of Electrical and Electronics Engineers Inc. Region 8 – Europe, Middle East and Africa. Poland Section. Chapters Signal Processing, Circuits and Systems, Poznań University of Technology. Faculty of Computing. Chair of Control and System Engineering. Division of Signal Processing and Electronic Systems. — Poznań : PUT, [2013]. — ISBN: 978-83-62065-15-8; e-ISBN: 978-83-62065-17-2. — S. 306–311. — Bibliogr. s. 311, Abstr. — W bazie Web of Science ISBN: 978-83-62065-17-2 oraz seria wydawnicza: Signal Processing Algorithms Architectures Arrangements and Application ; ISSN 2326-0262

Autorzy (2)

Słowa kluczowe

discrete cosine transformhalf band filteringgeneralized convolutiondownsampling and upsampling

Dane bibliometryczne

ID BaDAP76386
Data dodania do BaDAP2013-10-07
Rok publikacji2013
Typ publikacjimateriały konferencyjne (aut.)
Otwarty dostęptak
KonferencjaSignal Processing Algorithms, Architectures, Arrangements, and Applications 2013

Abstract

In the paper the possibility of efficient application of the Discrete Cosine Transform (DCT-IIIe), type III, even, to generate halfband filters windowed in time domain and used in the 2-dimensional (2D) wavelet-like decomposition-reconstruction scheme is investigated. The study is based on 6 test images. Comparative computations for varying length of the Hamming window and several image resolution options are used to present the possible trade-off between computations reduction coefficient (CRC) and resulting Peak Signal to Noise Ratio (PSNR). The results indicate that for tested images of size 512x512 the available CRC is about 57 times, while introduced distortions result in the PSNR value between 30dB and 36dB.

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