Sub-band coding/decoding for multi-dimensional signals

Details Sub-band coding/decoding for multi-dimensional signals Sub-band coding/decoding for multi-dimensional signals

H - Electricity

04

N

H04N 7/26 (2006.01) H04N 9/797 (2006.01)

Patent

CA 2184941

A method and apparatus for encoding and decoding multi-dimensional signals is disclosed. Non-separable multi-dimensional filters are utilized. Analysis filters encode the signal by applying a windowing function and a reduction function to the mufti-dimensional signal. This produces a prototype. The prototype is then replicated as many times as required by utilizing a modulation function. Synthesis filters then decode the encoded signal by utilizing the inverse of the encoding process.

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