Naslov
Perceptually Adaptive Joint Deringing - Deblocking Filtering for Scalable Video Coding

Autori
Wan, Shuai ; Mrak, Marta ; Izquierdo, Ebroul

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 2nd International Mobile Multimedia Communications Conference / - , 2006

Skup
2nd International Mobile Multimedia Communications Conference

Mjesto i datum
Alghero, Italija, 18.09.2006. - 20.09.2006

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
scalable video coding; deringing; deblocking; bilateral

Sažetak
A new perceptually adaptive joint deringing - deblocking filtering method for wavelet based scalable video coding is proposed. A structure based on in-loop filtering is designed for the decoding of scalable coded video considering the update step in motion compensated temporal filtering. Since ringing and blocking artifacts are visually disturbing, the characteristics of the human visual system (HVS) are considered in the underlying Bilateral filtering. In the proposed approach, the filter strength is adjusted according to the perceptual distortion by integrating the HVS models of luminance masking, activity masking and temporal masking. Consequently, different filtering strength is applied to areas with different perceptual sensitivity in terms of the HVS. A comparative evaluation using conventional loop filtering structure and Bilateral filter was conducted. The experimental assessment demonstrates a superior performance of the proposed adaptive filtering, providing substantial and consistent better objective and subjective quality.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA