Marker‐less real‐time intra‐operative camera and hand‐eye calibration procedure for surgical augmented reality

Realtime Camera Calibration for Enhanced Reality Visualization

The problem which must be solved to make realtime enhanced reality visualization possible is basically the camera calibration problem. The relationship between the coordinate frames of the patient, the patient's internal anatomy scans and the image plane of the camera observing the patient must be established. This paper presents a new approach to nding this relationship and develops a system f...

Markerless 3D Augmented Reality

Accurate Camera Calibration for Off-line, Video-Based Augmented Reality

Camera tracking is a fundamental requirement for videobased Augmented Reality applications. The ability to accurately calculate the intrinsic and extrinsic camera parameters for each frame of a video sequence is essential if synthetic objects are to be integrated into the image data in a believable way. In this paper, we present an accurate and reliable approach to camera calibration for off-li...

Markerless Augmented Reality for Robotic Helicoptor Applications

The objective of this research is to apply markerless Augmented Reality (AR) techniques to aid in the visualisation of robotic helicopter related tasks. Conventional robotic AR applications work well with markers in prepared environments but are infeasible in outdoor settings. In this paper, we present preliminary results from a real time markerless AR system for tracking natural features in an...

Markerless Pose Tracking for Augmented Reality

In this paper a new approach is presented for markerless pose tracking in augmented reality. Using a tracking by detection approach, we estimate the 3D camera pose by detecting natural feature points in each input frame and building correspondences between 2D feature points. Instead of modeling the 3D environment, which is changing constantly and dynamically, we use a virtual square to define a...