This paper adopts simultaneous iterative reconstruction technique (SIRT) to perform the crosswell tomography based on shortest path tree (SPT) curved ray tracing.

Seismic ray tracing algorithm based on the Iinear traveltime interpolation;

Neighborhood-aided trace method in improving efficiency of ray tracing;

Application of computerized tomography two-phrase ray tracing technique to civil engineering;

A Study and Application of the GRT Raytracing Method;

Gaussian beam method is based on the dynamic raytracing and paraxial approximation method.

The principle and method of seismic raytracing with shortest path algorithm in networks are discussed, the relevant drawbacks in which and improved measures are also analyzed.

The problem of slick disposal of model in ray-tracing processes;

Numerical simulation of ray-tracing and the analysis of its effect;

Refraction ray-tracing in complex medium.;