A method for creating an enhanced seismic image is described. Seismic data isacquired from a seismic survey conducted over a subterranean region. Theseismic data is transformed into energy components, preferably Gaussian beamcomponents. An earth model is created which is comprised of lens elements. Theset of energy components is propagated or migrated through the lens elementsto form image components which are combined into a seismic image. A target isidentified in the seismic image for image enhancement. Ray tracing may be usedto select the trial set of lens elements to be updated and to select a subsetof energy components. The subset of energy components is propagated throughupdated earth model to form updated image components. The seismic image isupdated by replacing image components with updated image components which areformed from the subset of selected energy components. This subset is ideallygreatly reduced in size relative to the overall number of energy components,i.e., beam components.
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