A Chebyshev/Legendre polynomial interpolation approach for fingerprint orientation estimation smoothing and prediction

Abstract

We introduce a novel coarse ridge orientation smoothing algorithm based on orthogonal polynomials, which can be used to estimate the orientation field (OF) for fingerprint areas of no ridge information. This method does not need any base information of singular points (SPs). The algorithm uses a consecutive application of filtering- and model-based… (More)
DOI: 10.1631/jzus.C0910749

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