TY - JOUR A1 - Y. Jia A1 - M. Wu A1 - X. Zhang T1 - AN IMPROVED HIGH FREQUENCY MODULATING FUSION METHOD BASED ON MODULATION TRANSFER FUNCTION FILTERS JO - ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci. J1 - ISPRS-Annals VL - I-7 SP - 285 EP - 290 Y1 - 2012/07/17 PB - Copernicus Publications SN - 2194-9050 UR - https://isprs-annals.copernicus.org/articles/I-7/285/2012/ L1 - https://isprs-annals.copernicus.org/articles/I-7/285/2012/isprsannals-I-7-285-2012.pdf DO - 10.5194/isprsannals-I-7-285-2012 ER -