Seismic data denoising method based on curvelet transformation-combined bilateral filtering

• Main Authors: MA BOLUN, SONG JIANGUO, LI ZHE, CAO YUPING, LI LINFENG
• Format: Patent
• Language: Chinese; English
• Published: 22.07.2022
• Subjects: DETECTING MASSES OR OBJECTS; GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; MEASURING; PHYSICS; TESTING

The invention discloses a seismic data denoising method based on curvelet transform-joint bilateral filtering, and belongs to the field of seismic data signal processing, the method comprises the following steps: firstly, carrying out curvelet transform on seismic data containing noise to obtain an original curvelet coefficient; performing scale analysis on the original curvelet coefficient to obtain a coarse scale signal, a middle scale signal and a fine scale signal; performing bilateral filtering processing on the coarse scale signal to obtain a new coarse scale signal; performing joint bilateral filtering processing on the intermediate-scale signal to obtain a new intermediate-scale signal; performing hard threshold processing on the fine-scale signal to obtain a new fine-scale signal; recombining the new coarse-scale signal, the new intermediate-scale signal and the new fine-scale signal to obtain a new curvelet coefficient; and carrying out curvelet inverse transformation on the new curvelet coefficient