Upon returning to the subject of shapes and automatic landmark selection,
goals could be laid out perfectly well. There were the issues of speed
and instability of the objective function. Also, it was vital to make
the code work in the absence of its original developers and authors.
These problems were all shortly embarked upon and some successful
solution were found. Figure shows
the data which was typically handled7.20, namely the brick-and-bump data. The 3 principal modes of variation
are shown for the raw data at the start when points are spread at
equally-spaced locations along the curve.
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To ease the operation of the code, an interface (Figure )
was built and used to bring the code back into workable order. The
process otherwise involved manipulation of the code which requires
the user to know the algorithm. This situation proved to be difficult
and tolerable at best.