Patent ID: 6587507
Filing Date: 2003-07-01
Classification: H04N

Abstract:
A method of encoding a two dimensional array of data, comprising the steps of:accessing a library having entries corresponding to a set of predefined two dimensional adaptive spline wavelet waveforms, each predefined two dimensional adaptive spline wavelet waveforms being formed by the superposition of one or more B-splines; identifying a set of best matches between the array of data and the predefined two dimensional adaptive spline wavelet waveforms by generating the inner product of the array of data and each of the predefined two dimensional adaptive spline wavelet waveforms, each inner product being generated by FIR filtering the data with a corresponding set of FIR filter coefficients, and then determining which of the inner products have largest values; and generating data representing the identified set of best matches, the generated data indicating for each match: one of the library entries, a position within the array of data at which the match was found, and a magnitude of the match.