Next: The new algorithm
Up: Summary of four corner
Previous: Freeman and Davis FD77
Corner strength. Similar to FD77, with the following modifications. The arm cutoff
parameter
is introduced to specify the upper limit for
and
as a fraction of
:
where
and
are given by (4) and (6), respectively.
The corner strength is obtained by averaging (5) between two values
and
:
Selection procedure. Same as in FD77.
Parameters. The four parameters are the averaging limits
and
,
the arm cutoff parameter
,
and the corner strength threshold
.
The default values are
,
,
,
and
.
Dmitry Chetverikov
1999-04-26