6. The method of claim 1 , wherein the identifying, by the computer, the one or more catheter object landmark candidates in the sequence of images comprises: identifying, by the computer, a first object landmark candidate corresponding to a first object type using one or more first classifiers trained for the first object type; and identifying, by the computer, a second object landmark candidate corresponding to a second object type using one or more second classifiers trained for the second object type.
7. The method of claim 6 , wherein the first object type corresponds to a catheter tip and the second object type corresponds to a catheter electrode.