KLTStopSequentialMode()
void KLTStopSequentialMode(
KLT_TrackingContext tc);
KLTStopSequentialMode() must be called when it is desired to set
tc->sequentialMode to FALSE. In addition to setting this value,
the function frees the memory pointed to by the fields
tc->pyramid_last, tc->pyramid_last_gradx, and tc->pyramid_last_grady.
This memory is allocated when KLTTrackFeatures() is called with
tc->sequentialMode to TRUE. Without calling the present function,
KLTTrackFeatures() and KLTReplaceLostFeatures() will continue to use
the old pyramids even though they are no longer valid.