Big ray tracing: Multivalued travel time field computation using viscosity solutions of the eikonal equation (Q1815942)
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scientific article; zbMATH DE number 947695
| Language | Label | Description | Also known as |
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| English | Big ray tracing: Multivalued travel time field computation using viscosity solutions of the eikonal equation |
scientific article; zbMATH DE number 947695 |
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Big ray tracing: Multivalued travel time field computation using viscosity solutions of the eikonal equation (English)
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19 December 1996
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Different travel times are identified as viscosity solutions of the eikonal equation on locally domains called big rays. Big rays are constructed by an ad hoc algorithm based on a coarse ray tracing. Viscosity solutions in the big rays are computed using an upwind finite difference scheme. The algorithm assures a fast computation. Some notions of the variational calculus are used.
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viscosity solutions
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eikonal equation
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algorithm
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ray tracing
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finite difference scheme
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