image analysis  search
RTdata processing
 digital cartography
 digital simulation
 digital terrain models
 elastic waves
 graphic display
 graphic methods
 image enhancement
 imagery
 methods
 petrography
 petrology
 seismic methods
 seismology
 tracers
 visualization
SNUsed for application of several specific methods in widely varying fields. Also search imaging. Added to Thesaurus in 1995.