Method for improving seismic horizon automatic tracking precision based on waveform recovery technique

The invention relates to a method for improving seismic horizon automatic tracking precision based on a waveform recovery technique in structure interpretation with seismic data. First of all, a horizon automatic tracking realization process is decomposed into four key steps: stratigraphic dip estimation, dip spread, correction of phase and subsequent treatment, and then the seismic horizon automatic tracking precision is improved by adopting the waveform recovery technique in the correction of phase stage. The correction of phase step comprises the following steps: firstly encrypting and sampling the waveform of a seismic trace by adopting a recursive sine interpolation algorithm; then searching for the point of inflexion on curve on the encrypted seismic trace according to a slope product method; recovering the seismic waveform by adopting the waveform recovery technique and identifying a seismic event extreme point or a zero-crossing-point in the seismic waveform and correcting the original horizon point. The correction of phase method can not only reduce the pressure on the requirement of estimation accuracy of the stratigraphic dip by horizon automatic tracking precision, but also improve the horizon tracking precision on the premise of being adaptive to different types of horizon tracking techniques.