Chen, Chu-SongChu-SongChenWu, Ja-LingJa-LingWuHung, Yi-PingYi-PingHung2009-04-242018-07-052009-04-242018-07-051999-04http://ntur.lib.ntu.edu.tw//handle/246246/152140en-USTheoretical Aspects of Vertically Invariant Gray-Level Morphological Operators and Their Application on Adaptive Signal and Image Filteringjournal article