A Multivariate Empirical Mode Decomposition Based Approach to Pansharpening

作者：Abdullah Syed Muhammad Umer^*; Rehman Naveed Ur; Khan Muhammad Murtaza; Mandic Danilo P

来源：IEEE Transactions on Geoscience and Remote Sensing, 2015, 53(7): 3974-3984.

DOI：10.1109/TGRS.2015.2388497

• Image fusion
• multi-resolution analysis
• multivariate empirical mode decomposition
• pansharpening

We propose a novel class of schemes for the pansharpening of multispectral (MS) images using a multivariate empirical mode decomposition (MEMD) algorithm. MEMD is an extension of the empirical mode decomposition (EMD) algorithm, which enables the decomposition of multivariate data into its intrinsic oscillatory scales. The ability of MEMD to process multichannel data directly by performing data-driven, local, and multiscale analysis makes it a perfect match for pansharpening applications, a task for which standard univariate EMD is ill-equipped due to the nonuniqueness, mode-mixing, and mode-misalignment issues. We show that MEMD overcomes the limitations of standard EMD and yields improved spatial and spectral performance in the context of pansharpening of MS images. The potential of the proposed schemes is further demonstrated through comparative analysis against a number of standard pansharpening algorithms on both simulated Pleiades and real-world IKONOS data sets.

• 出版日期2015-7
• 单位南方医科大学