Curvature preserving PDE-based nonlinear structure tensor
ZHENG Yu-hui 1,PAN Yu 2,SUN Quan-sen 2,WEI Zhi-hui 2,XIA De-shen 2
Computer Engineering and Applications . 2010, (18): 156 -159 .  DOI: 10.3778/j.issn.1002-8331.2010.18.049