Title :
Testing an automated unsupervised classification algorithm with diverse land covers
Author :
Cipar, John ; Lockwood, Ronald ; Cooley, Thomas ; Grigsby, Peggy
Author_Institution :
Air Force Res. Lab., Hanscom AFB
Abstract :
We test a new automatic unsupervised classification algorithm designed for hyperspectral images. The algorithm automatically determines the number of clusters in the image by finding dense regions of the pixel cloud. A variation on migrating means clustering is used to find the dense regions. Five scenes from an airborne AVIRIS data set are used to test the algorithm. The algorithm successfully finds the dominant land covers and many areally small land covers, such as roads and other man-made structures.
Keywords :
geophysical techniques; image classification; pattern clustering; airborne AVIRIS data; automated unsupervised classification algorithm; clustering; hyperspectral images; land covers; man-made structures; pixel cloud; roads; Atmospheric waves; Automatic testing; Classification algorithms; Clouds; Clustering algorithms; Hyperspectral imaging; Hyperspectral sensors; Laboratories; Layout; Reflectivity;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2007. IGARSS 2007. IEEE International
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-1211-2
Electronic_ISBN :
978-1-4244-1212-9
DOI :
10.1109/IGARSS.2007.4423374