
%0 Journal Article
%A Luo, Zhijiang 
%A Brittan, John 
%A Lewis, Edward 
%T Imaging complexity in the Earth &#x2013; Case studies with optimised ray tomography
%J ASEG Extended Abstracts
%D 2015/03/12
%V 2015
%N 1
%P 1-4
%K 
%R https://doi.org/10.1071/ASEG2015AB269
%U https://www.publish.csiro.au/paper/ASEG2015AB269 
%X In the past 10 years, the resolution of tomographic solutions has seen a continuous increase because of evolving sophistication in methodologies and technology. A vital issue in the data domain is accuracy and density of residual move-out picks that are used to derive tomographic velocity-model updates. A new automated method allows for precise tracking of accurate residual move-out on pre-stack depth-migrated gathers and consequently the fast determination of dense, high quality travel time residuals for seismic tomography. The determination of small-scale anomalies ultimately leads to flatter pre-stack depth-migrated gathers and consequently better-focused structural images. 
