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