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» Laplacian modeling of DCT coefficients for real-time encodin...
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ICMCS
2008
IEEE
119views Multimedia» more  ICMCS 2008»
13 years 11 months ago
Laplacian modeling of DCT coefficients for real-time encoding
Digital image/video coding standards such as JPEG, H.264 are becoming more and more important for multimedia applications. Due to the huge amount of computations, there are signif...
Jin Li, Moncef Gabbouj, Jarmo Takala, Hexin Chen
ICMCS
2006
IEEE
151views Multimedia» more  ICMCS 2006»
13 years 10 months ago
Analytical Model of Zero Quantized DCT Coefficients for Video Encoder Optimization
This paper proposes a novel analytical model to predict zero quantized DCT coefficients for fast video encoding. The dynamic range of quantized DCT coefficients are analyzed and...
Hanli Wang, Sam Kwong, Chi-Wah Kok
TCSV
2002
161views more  TCSV 2002»
13 years 4 months ago
Blocking artifact detection and reduction in compressed data
A novel frequency-domain technique for image blocking artifact detection and reduction is presented in this paper. The algorithm first detects the regions of the image which presen...
George A. Triantafyllidis, Dimitrios Tzovaras, Mic...
TCSV
2010
12 years 11 months ago
No-Reference Quality Assessment of H.264/AVC Encoded Video
Abstract--This paper proposes a no-reference quality assessment metric for digital video subject to H.264/AVC encoding. The proposed metric comprises two main steps: coding error e...
Tomás Brandão, Tiago Rosa Maria Paul...
ICASSP
2011
IEEE
12 years 8 months ago
Prediction of discrete cosine transformed coefficients in resized pixel blocks
Abstract— A hybrid model was developed to predict the zeroquantized discrete cosine transform (ZQDCT) coefficients for intra blocks in our previous work. However, the complicated...
Jin Li, Weiwei Chen, Moncef Gabbouj, Jarmo Takala,...