Cross-band noise model refinement for transform domain Wyner–Ziv video coding

2012 ◽  
Vol 27 (1) ◽  
pp. 16-30 ◽  
Author(s):  
Xin Huang ◽  
Søren Forchhammer
Keyword(s):  
Video Coding ◽  
Noise Model ◽  
Transform Domain ◽  
Model Refinement ◽  
Band Noise

Hybrid Distributed Correlation Noise Model and Parameter Estimation

2015 ◽  
Vol 752-753 ◽  
pp. 1110-1115
Author(s):  
Rui Cai ◽  
Deng Yin Zhang
Keyword(s):  
Parameter Estimation ◽  
Video Coding ◽  
Side Information ◽  
Cauchy Distribution ◽  
Estimation Algorithm ◽  
Distributed Video Coding ◽  
Noise Model ◽  
Transform Domain ◽  
Laplacian Distribution ◽  
Correlation Noise

In transform domain distributed video coding scheme, we found that there was a certain deviation between Laplacian statistical distribution and the distribution of small and large residual coefficients. To reduce this deviation, this paper proposes a hybrid distribution correlation noise model (HDCNM) based on K-Mediods, which models small coefficients as improved Laplacian distribution while modeling large ones as Cauchy distribution. The parameter estimation algorithm is also given. The experimental results show that the hybrid model proposed in this paper can describe the distribution of residual coefficients between WZ frame and side information accurately, so as to improve the distortion performance of transform domain distributed video coding effectively, and reduce the computational complexity of decoder.

Transform Domain Unidirectional Distributed Video Coding Using Dynamic Parity Allocation

2009 ◽  
Vol E92-A (4) ◽  
pp. 1202-1208
Author(s):  
Murat B. BADEM ◽  
Anil FERNANDO ◽  
Rajitha WEERAKKODY ◽  
Hemantha K. ARACHCHI ◽  
Ahmet M. KONDOZ
Keyword(s):  
Video Coding ◽  
Distributed Video Coding ◽  
Transform Domain

scholarly journals Dynamic Quality Control for Transform Domain Wyner-Ziv Video Coding

2009 ◽  
Vol 2009 ◽  
pp. 1-15 ◽  
Author(s):  
Sören Sofke ◽  
Fernando Pereira ◽  
Erika Müller
Keyword(s):  
Quality Control ◽  
Video Coding ◽  
Transform Domain ◽  
Dynamic Quality
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