Method and apparatus for computing cost of a path expansion to a surface
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United States of America Patent
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Jul 17, 2007
Grant Date -
N/A
app pub date -
Dec 31, 2002
filing date -
Jun 4, 2002
priority date (Note) -
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Abstract
Some embodiments of the invention provide a method for costing an expansion to a two-dimensional state in a path search that searches for a path between two sets of states in a space. The method identifies a cost function that is defined over the two-dimensional state. The method computes a second cost function that is defined over the two-dimensional state. It also computes a third cost function that is defined over the two-dimensional state. It then adds the second and third cost functions to obtain the first cost function.
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