Computer implemented empirical mode decomposition method, apparatus, and article of manufacture for two-dimensional signals

An apparatus for processing a two-dimensional physical signal representative of a physical phenomenon, comprising:

• an input device inputting the two-dimensional physical signal representative of the physical phenomenon;
• a decomposer decomposing the two-dimensional physical signal into one dimensional profiles;
• and
• a sifter recursively performing a Sifting Process on the profiles using Empirical Mode Decomposition to extract an intrinsic mode function for each of the profiles indicative of an intrinsic oscillatory mode in the physical phenomenon.

An article of manufacture, comprising:

• a computer-usable medium including computer-readable program code means, embodied therein, for causing a computer to process a two-dimensional physical signal representative of a physical phenomenon, the computer-readable program code means comprising:
• computer-readable program code means for inputting the two-dimensional physical signal representative of the physical phenomenon;
• computer-readable program code means for decomposing the two-dimensional physical signal into one dimensional profiles;
• and
• computer-readable program code means for recursively sifting the profiles via Empirical Mode Decomposition to extract an intrinsic mode function for each of the profiles indicative of an intrinsic oscillatory mode in the physical phenomenon.