Supported by the National Natural Science Foundation of China (69983005)
Frequency-domain waveform seismic tomography includes modeling of wave propagation and full waveform inversion of correcting the initial velocity model. In the forward modeling, we use direct solution based on sparse ...
Supported by the National Natural Science Foundation of China (69983005)
An approach of three-dimensional seismic ray tracing is presented,which is derived from adopting two-dimensional linear traveltime interpolation(LTI).By adjusting the forward process using the partition of grid inte...
Supported by the National Natural Science Foundation of China (69983005)
The paper presents a class of nonlinear adaptive wavelet transforms for lossless image compression. In update step of the lifting the different operators are chosen by the local gradient of original image. A nonlinear...