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In order to choose a good interpolator for Stolt
migration, we compared the five different
interpolation methods.
The following table shows the relative differences in accuracy and
speed of the five interpolators:

Interpolator |
Speed |
Accuracy |

Nearest-neighbor |
++++ |
+ |

Linear |
+++ |
++ |

Linear plus cork-screw |
+++ |
+++ |

Harlan's 10-point |
++ |
++++ |

Muir's |
+ |
+++++ |

Nearest-neighbor and linear interpolators
produce too many artifacts. The linear plus cork-screw
method reduces some artifacts. Harlan's interpolator
provides an accurate interpolation with an acceptable speed.
Muir's method is the most accurate but is also the slowest.
**nearnb
**

Figure 1 Impulse response by nearest neighbor interpolation

**lin
**

Figure 2 Impulse response by linear interpolation

**linfaze
**

Figure 3 Impulse response by linear plus cork-screw interpolation

**harlanz
**

Figure 4 Impulse response by Harlan's interpolation

**muirz
**

Figure 5 Impulse response by Muir's interpolation

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** Up:** Lin, Teng, & Muir:
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Stanford Exploration Project

11/16/1997