scholarly journals Dissipation engineered directional filter for quantum ratchets

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Zlata Fedorova ◽  
Christoph Dauer ◽  
Anna Sidorenko ◽  
Sebastian Eggert ◽  
Johann Kroha ◽  
...  
Keyword(s):  
Directional Filter ◽  
Quantum Ratchets

Image Fusion Method Based on Multi-scale Directional Fast Guided Filter and Convolutional Sparse Representation

2019 ◽  
Vol 12 (3) ◽  
pp. 263-269
Author(s):  
Liu Xian-Hong ◽  
Chen Zhi-Bin
Keyword(s):  
Image Fusion ◽  
Sparse Representation ◽  
Filter Bank ◽  
Guided Filter ◽  
Fusion Method ◽  
Edge Preserving ◽  
Directional Information ◽  
Multi Scale ◽  
Directional Filter ◽  
Image Fusion Method

Background: A multi-scale multidirectional image fusion method is proposed, which introduces the Nonsubsampled Directional Filter Bank (NSDFB) into the multi-scale edge-preserving decomposition based on the fast guided filter. Methods: The proposed method has the advantages of preserving edges and extracting directional information simultaneously. In order to get better-fused sub-bands coefficients, a Convolutional Sparse Representation (CSR) based approximation sub-bands fusion rule is introduced and a Pulse Coupled Neural Network (PCNN) based detail sub-bands fusion strategy with New Sum of Modified Laplacian (NSML) to be the external input is also presented simultaneously. Results: Experimental results have demonstrated the superiority of the proposed method over conventional methods in terms of visual effects and objective evaluations. Conclusion: In this paper, combining fast guided filter and nonsubsampled directional filter bank, a multi-scale directional edge-preserving filter image fusion method is proposed. The proposed method has the features of edge-preserving and extracting directional information.

Sidescan sonar: a directional filter of seabed texture?

1999 ◽  
Vol 146 (1) ◽  
pp. 65 ◽  
Author(s):  
J.M. Bell ◽  
M.J. Chantler ◽  
T. Wittig
Keyword(s):  
Sidescan Sonar ◽  
Directional Filter

scholarly journals Dissipation Enhanced Asymmetric Transport in Quantum Ratchets

1998 ◽  
Vol 67 (4) ◽  
pp. 1090-1093 ◽  
Author(s):  
Gen Tatara ◽  
Makoto Kikuchi ◽  
Satoshi Yukawa ◽  
Hiroshi Matsukawa
Keyword(s):  
Quantum Ratchets

scholarly journals Periodically driven quantum ratchets: Symmetries and resonances

2007 ◽  
Vol 75 (6) ◽  
Author(s):  
S. Denisov ◽  
L. Morales-Molina ◽  
S. Flach ◽  
P. Hänggi
Keyword(s):  
Periodically Driven ◽  
Quantum Ratchets
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