M. Lourenco, D. Stoyanov, and J. P. Barreto, "Visual Odometry in Stereo Endoscopy by using PEaRL to handle Partial Scene Deformation," Int. Workshop in Augmented Environments for Computer Assisted Intervention (in conjunction with MICCAI'2014), Boston, September 2014.
M. Lourenco, J. P. Barreto, F. Fonseca, R. Duarte, and J. Correia-Pinto, "Continuous Zoom Calibration by Tracking Salient Points in Endoscopic Video," MICCAI' 2014: Medical Imaging Computing and Computer Assisted Intervention, Boston, September 2014.
A. Malti and J. P. Barreto, "Hand-eye and radial distortion calibration for rigid endoscopes ", Int Journal of Medical Robotics and Computer Assisted Surgery, December 2013.
R. Melo, J. P. Barreto, and G. Falcao. "A New Solution for Camera Calibration and Real-Time Image Distortion Correction in Medical Endoscopy - Initial Technical Evaluation.", IEEE Trans. in Biomedical Engineering. March, 2012.
J. P. Barreto, J. Roquette, P. Sturm, and F. Fonseca. "Automatic Camera Calibration Applied to Medical Endoscopy". British Machine Vision Conference. London, September 2009.
J. P. Barreto, J. M. Santos, P. Menezes and F. Fonseca. "Ray-Based Calibration of Medical Endoscopes". Int. Work. on Omnidirectional Vision, Camera Networks and Non-Classical Cameras.. Marseille, October 2008.
Method and apparatus for automatic camera calibration using one or more images of a checkerboard pattern [link]
Method for aligning and tracking point regions in images with radial distortion that outputs motion model parameters, distortion calibration, and variation in zoom [link]