Foreword.- Graphics Processor Unit (GPU) Accelerated Shallow Transparent Layer Detection in Optical Coherence Tomographic (OCT) images for real-time Corneal Surgical Guidance .- Ultrasound Image Overlay onto Endoscopic Image by Fusing 2D-3D Tracking of Laparoscopic Ultrasound Probe.- Simulation of Ultrasound Images for Validation of MR to Ultrasound Registration in Neurosurgery.-Visual Odometry in Stereo Endoscopy by using PEaRL to handle Partial Scene Deformation.- Instrument Tracking and Visualization for Ultrasound Catheter Guided Procedures.- Towards video guidance for ultrasound, using a prior high-resolution 3D surface map of the external anatomy.- Fusion of Inertial Sensing to Compensate for Partial Occlusions in Optical Tracking Systems.-Improvement of a Virtual Pivot for Minimally Invasive Surgery Simulators using Haptic Augmentation.-Augmented Reality in Neurovascular Surgery: First Experiences.-A New Cost-Effective Approach to Pedicular Screw Placement.- A Simple and Accurate Camera-sensor Calibration for Surgical Endoscopes and Microscopes.-Augmented-reality environment for locomotor training in children with neurological injuries.- Linear Object Registration of Interventional Tools.- Augmented Reality-Enhanced Endoscopic Images for Annuloplasty Ring Sizing.-A Framework for Semi-Automatic Fiducial Localization in Volumetric Images.