Title
Face hallucination through differential evolution parameter map learning with facial structure prior.
Abstract
Current learning based face hallucination approaches mainly focus on how to design a reasonable objective function, such as using different assumptions and incorporating different regularization terms, but do not give a reasonable way of selecting the model parameters. In this paper, we propose to exploit the facial structure prior to learn a parameter map based on differential evolution. Specifically, we claim that different position patches have different parameter settings because of their different statistical properties, and patches from the same position of different face images should have similar parameter settings. As a result, we first learn a parameter map for each training sample by leveraging an evolutionary algorithm based on differential evolution, and then fuse these learned parameter maps to an optimal parameter map for testing via mean-pooling strategy. Finally, we use the predicted parameter map to guide the co-occurrence relationship modeling in different regions of the input low-resolution (LR) face image. Experimental results demonstrate that, even without seeing the ground truth, results of proposed parameter map learning method are comparable to or better than those traditional unified parameter setting methods and some recently proposed deep learning methods.
Year
DOI
Venue
2019
10.1016/j.ins.2018.12.064
Information Sciences
Keywords
Field
DocType
Face hallucination,Image super-resolution,Differential evolution,Facial structure,Neighbor embedding
Face hallucination,Pattern recognition,Evolutionary algorithm,Differential evolution,Exploit,Ground truth,Regularization (mathematics),Artificial intelligence,Deep learning,Fuse (electrical),Mathematics,Machine learning
Journal
Volume
ISSN
Citations 
481
0020-0255
0
PageRank 
References 
Authors
0.34
42
5
Name
Order
Citations
PageRank
Junjun Jiang1113874.49
Jiayi Ma2130265.86
Suhua Tang326035.73
Yi Yu444042.53
Kiyoharu Aizawa51836292.43