Metody kodowania współczynników transformaty falkowej w kompresji obrazów

• Autorzy: Wasilewski P.

Warianty tytułu

EN

Wavelet transform coefficients coding methods for image compression

• Języki publikacji: PL

Abstrakty

PL

Artykuł zawiera wprowadzenie do dwuwymiarowej transformaty falkowej i przedstawia wybrane sposoby kodowania jej współczynników w algorytmach stratnej kompresji obrazów i sekwencji wideo. W pracy ponadto została opisana własna metoda kodowania współczynników 2D-DWT, a uzyskane wyniki zostały porównane ze standardami H.263 oraz Intel Indeo.

EN

The paper presents the introduction to the two-dimensional wavelet transform and describes selected methods for transform coefficients coding in lossy image compression algorithms. The original method for 2D-DWT coefficients coding is also presented and obtained results are compared to H.263 and Intel Indeo standards.

Słowa kluczowe

PL

transformata falkowa; kompresja obrazów; standardy H.263; Intel Indeo; algorytm ECTW; algorytm EZW; kodowanie współczynników transformaty

EN

wavelet transform; H.263 standards; Intel Indeo standards; ECTW algorithm; EZW algorithm; transform coefficients coding

• Wydawca: Politechnika Łódzka, Instytut Elektroniki
• Czasopismo: Elektronika : prace naukowe
• Rocznik: 2001
• Tom: nr 6
• Strony: 135--156
• Opis fizyczny: Bibliogr. 28 poz.

Twórcy

autor

Wasilewski P.

• Institute of Electronics, Technical University of Łódź,

Bibliografia

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