Hou, JieSymes, William W.2017-01-302017-01-302017Hou, Jie and Symes, William W.. "An alternative formula for approximate extended Born inversion." <i>Geophysics,</i> 82, no. 1 (2017) Society of Exploration Geophysicists: S1-S8. http://dx.doi.org/10.1190/geo2016-0327.1.https://hdl.handle.net/1911/93814Various modifications of reverse time migration (RTM) provide asymptotic inverses to the subsurface offset extended Born modeling operator for constant-density acoustics. These approximate inverses have the same quality (asymptotic accuracy) as do generalized Radon transform pseudoinverses, but they can be computed without any ray tracing whatsoever. We have developed an approximate inverse of this type whose additional computational cost, above that of subsurface offset extended RTM, is negligible.engArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.Journal articleinversionreverse time migrationimagingamplitudehttp://dx.doi.org/10.1190/geo2016-0327.1