?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=http%3A%2F%2Fmiis.maths.ox.ac.uk%2Fmiis%2F194%2F&rft.title=Seismic+Image+Analysis+Using+Local+Spectra&rft.creator=Lamoureux%2C+Michael&rft.subject=Materials&rft.subject=Information+and+communication+technology&rft.description=This+report+considers+a+problem+in+seismic+imaging%2C+as+presented+by+researchers+from+Calgary+Scientific+Inc.+The+essence+of+the+problem+was+to+understand+how+the+S-transform+could+be+used+to+create+better+seismic+images%2C+that+would+be+useful+in+identifying+possible+hydrocarbon+reservoirs+in+the+earth.%0A%0AThe+important+first+step+was+to+understand+what+aspect+of+the+imaging+problem+we+were+being+asked+to+study.+However%2C+since+we+would+not+be+working+directly+with+raw+seismic+data%2C+traditional+seismic+techniques+would+not+be+required.+Rather%2C+we+would+be+working+with+a+two+dimensional+image%2C+either+a+migrated+image%2C+a+common+mid-point+(CMP)+stack%2C+or+a+common+depth+point+(CDP)+stack.+In+all+cases%2C+the+images+display+the+subsurface+of+the+earth+with+geological+structures+evident+in+various+layers.%0A%0AFor+a+given+image+the+local+spectrum+is+computed+at+each+point.+The+various+peaks+in+the+spectrum+are+used+to+classify+each+pixel+in+the+original+seismic+image+resulting+in+an+enhanced+and+hopefully+more+useful+seismic+pseudosection.+Thus%2C+the+objective+of+this+project+was+to+improve+the+identification+of+layers+and+other+geological+structures+apparent+in+the+two+dimensional+image+(a+seismic+section%2C+or+CDP+gather)+by+classifying+and+coloring+image+pixels+into+groups+based+on+their+local+spectral+attributes.&rft.date=2005&rft.type=Study+Group+Report&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.language=en&rft.identifier=http%3A%2F%2Fmiis.maths.ox.ac.uk%2Fmiis%2F194%2F1%2Fcalgary_scientific.pdf&rft.identifier=++Lamoureux%2C+Michael++(2005)+Seismic+Image+Analysis+Using+Local+Spectra.++%5BStudy+Group+Report%5D+++++