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CDJVDyadUp

UpSampling with CDJV Boundary Correction

Calling Sequence

bhi = CDJVDyadUp(blo,F,LEF,REF)

Parameters

Inputs:

bhi :

1-d signal, at coarse scale

F :

filter

LEF :

left edge filter bank

REF :

right edge filter bank

Outputs:

blo :

1-d signal, at coarse scale

Description

CDJV have developed an algorithm for wavelets on the interval which preserves the orthogonality, vanishing moments, smoothness and compact support of Daubechies wavelets on the line.

The algorithm for wavelets on the interval of CDJV involves filtering combined with upsampling and downsampling, just like the algorithm on the line and circle. However, the filtering is not convolutional at the edges; instead special edge-filter matrices are applied. CDJVDyadUp implements the upsampling with edge-adjustment.

See also

Bibliography

CDJV -- Cohen, Daubechies, Jawerth and Vial, 1992.

Authors

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