scholarly journals Acceleration of RED via vector extrapolation

2019 ◽  
Vol 63 ◽  
pp. 102575 ◽  
Author(s):  
Tao Hong ◽  
Yaniv Romano ◽  
Michael Elad
Keyword(s):  
Vector Extrapolation

An Efficient Concealment Algorithm for Inter Frames Based on Block-Level and Pixel-Level Motion Vector Extrapolation

2014 ◽  
Vol 635-637 ◽  
pp. 1026-1029
Author(s):  
Geng Wei ◽  
Ruo Ying Wang ◽  
Yu Dong Zhang
Keyword(s):  
Motion Vector ◽  
Vector Extrapolation ◽  
Different Types ◽  
Highly Effective ◽  
Block Level ◽  
Simulation Results ◽  
Channel Errors

In this paper, a frame concealment scheme is proposed to combat the channel errors by using block-level and pixel-level motion vector extrapolation (MVE). Firstly, the proposed algorithm classifys the lost blocks into different types and then determines their corresponding MVs. Secondly, by using the pixel-level MV extrapolation, the candidate MV set of different lost pixels is obtained combined with the MVs of the blocks. Simulation results show this method is highly effective in sense of PSNR.

scholarly journals The Extrapolation-Accelerated Multilevel Aggregation Method in PageRank Computation

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Bing-Yuan Pu ◽  
Ting-Zhu Huang ◽  
Chun Wen ◽  
Yi-Qin Lin
Keyword(s):  
Stochastic Matrix ◽  
Numerical Results ◽  
Extrapolation Method ◽  
Stationary Probability ◽  
Probability Vector ◽  
Aggregation Method ◽  
Vector Extrapolation ◽  
Stationary Probability Vector

An accelerated multilevel aggregation method is presented for calculating the stationary probability vector of an irreducible stochastic matrix in PageRank computation, where the vector extrapolation method is its accelerator. We show how to periodically combine the extrapolation method together with the multilevel aggregation method on the finest level for speeding up the PageRank computation. Detailed numerical results are given to illustrate the behavior of this method, and comparisons with the typical methods are also made.

scholarly journals Iterative solution of the Ornstein-Zernike equation with various closures using vector extrapolation

1995 ◽  
Vol 92 (2-3) ◽  
pp. 188-202 ◽  
Author(s):  
Herbert H.H Homeier ◽  
Sebastian Rast ◽  
Hartmut Krienke
Keyword(s):  
Iterative Solution ◽  
Vector Extrapolation
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