Video signal processing using vector median

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Abstract
In the vector median approach the samples of the vector-valued input signal are processed as vectors as opposed to componentwise scalar processing. The VM-type filters utilize the correlation between different components in video signal. This makes the VM-filters attractive in video signal processing. In this paper the performance of vector median filters for color video signals is investigated. Vector median FIR median hybrid filters (VFMH) for cross luma and cross color cancellation are introduced. In the VFMH filter the vector median operation is combined with linear substructures resulting in improved cross color and cross luma attenuation and in very good noise attenuation.

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