Multidomain Denoise - A Robust and Efficient Method of Suppressing Incoherent Noise

We present a method of noise attenuation performed in a small cuboid of seismic data moving within a larger block of local gathers. Noise contents are detected by comparing the frequency spectrum of a sliding time window against a local median amplitude with respect to a soft threshold. This approach replaces a preceding work flow which involved repeated sorting into different domains. This simultaneous implementation significantly improves both robustness and efficiency of the method. Further improvements may be achieved by either protecting strong signals or reducing the signal leakage in the noise model while performing an adaptive subtraction.