Fusion technique for multi-focus images based on orientation information measurement in non-subsample shearlet transform domain
XING Ya-qiong, WANG Xiao-dan, LIANG Bing-jie, QIN Zhuo
Systems Engineering and Electronics . 2015, (1): 191 -198 .  DOI: 10.3969/j.issn.1001-506X.2015.01.31