Impedance inversion based on basis pursuit decomposition and contourlet transform
Xiaotao Wen, Dongyong Zhou, Zhenhua He · 2014
Summary Matching pursuit can adaptively decompose a seismic trace into a series of wavelets and realize highly precise impedance inversion for underground geological body. However, since traditional matching pursuit is used in single channel, the lateral continuity is lack along the profile. Faced with this problem, we exploit contourlet transform to enhance the lateral stability of reflection section, and then we calculate impedance based on reflection section. Application in some area shows that contourlet transform can enhance the structures in reflection profile and lateral continuity will be great improved in reflection profile and impedance profile.