US Long-Term Ecological Research Network
Rapid maximum likelihood classification
Year of Publication
1991
Volume
57
Number of Pages
67-74
We describe an improved table look-up technique for performing rapid maximum likelihood classification on large images. The method provided a more than 20-fold reduction in classification time relative to standard algorithms in a three-band classification of a full Landsat Thematic Mapper (TM\_) scene. While powerful, the improved algorithm is also simple, portable, and can run in limited memory desktop computer environments. The described algorithm significantly improves the practicality of large area land-cover classifications, such as those required for statewide and regional analyses.