BUILT-IN CHECKS AND BALANCES
OVER EXTRAPOLATION CHECKS
The danger exists that an interpolated output trace will be unreliable because it is positioned too far away from input
data in one or more of the four spatial dimensions. To prevent this from happening, dimensional proximity
checks are performed on every output trace snippet during the interpolation phase. If a trace snippet fails one of these
tests, a kill flag for the dimension in question is set. At the time of construction of the output traces, the user can
choose which dimensional kill flags are to be activated. This will result in the trace snippets, considered to be over
extrapolated, not being summed into the final output trace. If this results in a whole trace being killed, a blank trace
will still be output as a place holder and will be marked as dead.
Another hazard is if the input data are aliased, in one or more of the four spatial dimensions, relative to the
desired output spacing specified by the user. The Calcoulee Continuum can detect some of the obvious cases of
aliasing and take the necessary action to prevent the interpolated output from deteriorating. Parameters are also
provided for the user to control how the program deals with some of these potential aliasing cases.
SOFTWARE PROGRAMMED BY:
Calcoulee Corporation, Email: