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Fundamental B-spline properties<br />

➤ Partition <strong>of</strong> unity<br />

• reproduction <strong>of</strong> <strong>the</strong> constant<br />

and <strong>of</strong> polynomials<br />

up to degree n<br />

➤ Riesz basis<br />

• stability: small perturbation <strong>of</strong> coefficients results into small change<br />

<strong>of</strong> spline signal<br />

• unambiguity: each re<strong>presentation</strong> is unique<br />

➤ m-scale relation (for m integer)<br />

7

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