Atmospheric correction as a preprocessing work should be performed to conduct accurately landcover/landuse classification using hyperspectral imagery. Atmospheric correction on airborne hyperspectral images was conducted and then the effect of atmospheric correction by comparing spectral reflectance characteristics before and after atmospheric correction for a few landuse classes was analyzed. In addition, land cover classification was first conducted respectively by the maximum likelihood method and the spectral angle mapper method after atmospheric correction and then the results were compared. Applying the spectral angle mapper method, the sea water area were able to be classified with the minimum of noise at the threshold angle of 4 arc degree. It is considered that object-based classification method, which take into account of scale, spectral information, shape, texture and so forth comprehensively, is more advantageous than pixel-based classification methods in conducting landcover classification of the coastal area with hyperspectral images in which even the same object represents various spectral characteristics.
Th er e s e a r c h f o re x t r a c t i n g ma n-ma d ef e a t u r e ss u c h a sb u i l d i n g a n dr o a df r o m t h ea e r i a l p h o t o g r a p ho rs a t e l l i t ei ma g e r yh a sb e e np e r f o r me da c t i v e l y .Asl a t e l yt h er e s o l u t i o no fd i g i t a l a e r i a lp h o t o g r a p h swa si mp r o v e d ,u n wa n t e df e a t u r e s (n o i s e)wo u l db eo f t e nd e t e c t e d .Ane d g e d e t e c t i o n a l g o r i t h m i sd e v e l o p e d t oma k eu p f o rs u c h an o i s ep r o b l e m,ma k eb o u n d a r i e so f
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.