skip to main content

Title: An intercomparison of artificial intelligence approaches for polar scene identification

Six advanced very high resolution radiometer local area coverage arctic scenes are classified into 10 classes. These include water, solid sea ice, broken sea ice, snow-covered mountains, land, stratus over ice, stratus over water, cirrus over ice, cumulus over water, and multilayer cloudiness. Eight spectral and textural features are computed. The textural features are based upon the gray level difference vector method. Six different artificial intelligence classifiers are examined: (1) the feed forward back propagation neural network; (2) the probabilistic neural network; (3) the hybrid back propagation neural network; (4) the [open quotes]don't care[close quotes] perceptron network; (5) the [open quotes]don't care[close quotes] back propagation neural network; and (6) a fuzzy logic-based expert system. Accuracies in excess of 95% are obtained for all but the hybrid neural network. The [open quotes]don't care[close quotes] back propagation neural network produces the highest accuracies and also has low CPU requirements. Thin fog/stratus over ice is the class consistently with the lowest accuracy, often misclassified as broken sea ice. Water, land, cirrus over ice, and snow-covered mountains are all classified with high accuracy ([ge]98%). The high accuracy achieved in the present study can be traced to (1) accurate classifiers; (2) an excellent choice formore » the feature vector, and (3) accurate labeling. A sophisticated new interactive visual image classification system is used for the labeling. 33 refs., 8 figs., 7 tabs.« less
Authors:
; ; ; ; ; ;  [1]
  1. (South Dakota School of Mines and Technology, Rapid City (United States))
Publication Date:
OSTI Identifier:
6599667
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Geophysical Research; (United States); Journal Volume: 98:D3
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; CLOUDS; ACCURACY; CLASSIFICATION; RESOLUTION; ICE; POLAR REGIONS; ARTIFICIAL INTELLIGENCE; COMPARATIVE EVALUATIONS; REMOTE SENSING; WATER; FOG; FUZZY LOGIC; MOUNTAINS; SNOW; ATMOSPHERIC PRECIPITATIONS; CRYOSPHERE; EVALUATION; HYDROGEN COMPOUNDS; MATHEMATICAL LOGIC; OXYGEN COMPOUNDS 540210* -- Environment, Terrestrial-- Basic Studies-- (1990-); 540110; 540310 -- Environment, Aquatic-- Basic Studies-- (1990-)