A geophysical model of a subsurface region is generated based on seismic data, e.g., seismic reflection data. Migration and seismic inversion are applied to the seismic data to generate estimates of one or more physical or seismic properties of the subsurface region. Seismic inversion, such as spectral...http://www.google.com/patents/US20100270026?utm_source=gb-gplus-sharePatent US20100270026 - Spectral Shaping Inversion And Migration of Seismic Data