Browsing by Author "Ha, Y.K."
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- ItemMetadata onlyTHE STABILITY OF LINEAR PREDICTIVE DESCRIPTIONS OF CURVES USED IN HANDWRITING(1981-02-01) Ha, Y.K.; Witten, I.H.The technique of signal analysis by adaptive predictive filtering has previously been extended to the case of multi-dimensional signals, and it has been conjectured that this might be used to analyze handwriting as a cycloidal curve which is modulated to form the letter shapes. Although a second-order two-dimensional filter can model cycloids, the analysis procedure becomes unstable, and we show how differencing the input and applying a first-order filter rectifies this problem.