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Object Based (Oriented) Image Analysis

Question asked by nnash1980 on Oct 23, 2015
Latest reply on Feb 22, 2016 by acrawford-esristaff

I am currently using ArcGIS 10.3 and new to OBIA.  My goal is to segment out portions of dead trees in the Lake Tahoe Basin and not sure how to go about this.  I have searched extensively online and had no luck as to any tutorials or steps to follow.  I am using Landsat 8 OLI (30m) and WorldView-2 (2m) spatial resolution imagery for this task.  Here is my plan and please correct me if I am wrong. (For Landsat 8 OLI)

1.  Create a Natural Color Image using Bands 4,3,2.

2.  Establish training areas of dead trees and healthy lodgepole and red attack trees in the training sample manager.

3.  Create a signature file

4.  Under ArcToolbox>Spatial Analyst Tools>Segmentation and Classification>Classify Raster

 

Are these steps suitable to segment the landsat image?

 

Any help would be greatly appreciated

Norm

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