1. A method for tracking of a catheter in a fluoroscopic image sequence comprising: receiving a fluoroscopic image sequence; initializing a catheter electrode model for a catheter in a first frame of the fluoroscopic image sequence; detecting, by a graphics processing unit (GPU), catheter landmark candidates in each remaining frame of the fluoroscopic image sequence; and tracking, by a Central Processing Unit (CPU), the catheter electrode model based on the detected catheter landmark candidates in each remaining frame of the fluoroscopic image sequence.