The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 23, 2019
Filed:
Sep. 30, 2016
Pgs Geophysical As, Oslo, NO;
Truong Nguyen, Weybridge, GB;
Richard Dyer, Weybridge, GB;
PGS Geophysical AS, Oslo, NO;
Abstract
Techniques are disclosed relating to reducing noise in geophysical marine survey data. According to some embodiments, a complex-valued, directional, multi-resolution (CDM) transform may be applied to marine survey input data and a noise template. Global adaptation constraints and, optionally, local adaptation constraints may be generated dependent on the transformed marine survey data and transformed noise template. The transformed noise template may be adapted dependent upon the global (and, optionally, local) constraints, and the adapted transformed noise template may be subtracted from the transformed marine survey data to remove noise. An inverse CDM transform may be performed on the resulting data to generate reduce-noise marine survey data in the input domain.