Interpolations

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Interpolations

• Achi Brandt

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Two Dimensional Interpolation

• First direction
• Second direction
• Bileanear. Bicubic Bipolynomial

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Linear Interpolation 2h ?h
?second order interpolation
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P-order interpolation
u (xj)
u (x)
Xip
Xi2
Xi1
X

• Linear interpolation p 2
• Cubic interpolation p 4

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Fine-to Coarse Transfer (Restriction)

• Injection
• Full Weighting

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• Linear
• interpolation
• Second order transfers.
• General order, general dimension d

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(No Transcript)
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1-D linear interpolation 2h h

• Adjoint h 2h transfer (anterpolation)

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Coarse-Grid Aliasing
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Coarse-Grid Aliasing