Gradient flow optimization for reducing blocking effects of transform coding

• Autorzy: Gao F. , Li X. , Wang X. , Wee W. G.
• Języki publikacji: EN

Abstrakty

EN

This paper addresses the problem of reducing blocking effects in transform coding. A novel optimization approach using the gradient flow is proposed. Using some properties of the gradient flow on a manifold, an optimized filter design method for reducing the blocking effects is presented. Based on this method, an image reconstruction algorithm is derived. The algorithm maintains the fidelity of images while reducing the blocking effects. Experimental tests demonstrate that the presented algorithm is effective.

Słowa kluczowe

EN

gradient flow; blocking effects; optimization; transform coding

PL

przepływ gradientu; efekt blokowania; kodowanie transformatowe

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mathematics and Computer Science
• Rocznik: 2004
• Tom: Vol. 14, no 1
• Strony: 105--111
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Gao F.

• Department of Electrical and Computer Engineering and Computer Science, University of Cincinnati

autor

Li X.

• Department of Electrical and Computer Engineering and Computer Science, University of Cincinnati

autor

Wang X.

• Department of Electrical and Computer Engineering and Computer Science, University of Cincinnati

autor

Wee W. G.

• Department of Electrical and Computer Engineering and Computer Science, University of Cincinnati

Bibliografia

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