Tuesday, September 13, 2016

Land Use\Land Cover Classification

Photo Interpretation and Remote Sensing - Mod 3

This week's lesson was to classify a TIFF image to Level II.  A polygon shapefile was created and two fields, Code and Code_Descr added to the attribute table.  Next an editing session was started and the boundaries for the different classifications needed to be digitized.  Digitizing each of those islands was a very long, drawn out process, but the most difficult part was determining how to classify everything.  So many things could be either one thing or another.  Fortunately most of what I was uncertain about fit into the same category so I didn't have to make a final determination.  If I had had to drill down to Level III there were several things I wouldn't have known how to classify.  There were a couple buildings that could have been schools, hospitals or nursing homes.  Fortunately they all belonged to the Level II Commercial and Services category so I didn't have to decide. 

This lesson was pretty intense.  There was a lot of reading material to cover and so much information it was difficult to absorb it all.

No comments:

Post a Comment