Semi-automated training approaches for spectral class definition

Autor: Paul V. Bolstad, T. M. Lillesand
Rok vydání: 1992
Předmět:
Zdroj: International Journal of Remote Sensing. 13:3157-3166
ISSN: 1366-5901
0143-1161
Popis: A semi-automated approach to spectral training for a maximum likelihood classification is shown to maintain or improve classification accuracy while reducing analyst input five-fold. The semi-automated approach is based on spectral sampling via region growing and training set refinement via transformed-divergence based mergers and deletions. Classification accuracies at the Anderson level II/III in northern Wisconsin were higher for the semi-automated approach in five of six combinations of imagery, analyst, and study area, at significantly reduced training expense.
Databáze: OpenAIRE