A Flexible New Technique for Camera Calibration
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Real Time Tomographic Reflection: Phantoms for Calibration and Biopsy
ISAR '01 Proceedings of the IEEE and ACM International Symposium on Augmented Reality (ISAR'01)
A visual probe localization and calibration system for cost-effective computer-aided 3D ultrasound
Computers in Biology and Medicine
A topological approach to finding grids in calibration patterns
Machine Vision and Applications
Fused video and ultrasound images for minimally invasive partial nephrectomy: a phantom study
MICCAI'10 Proceedings of the 13th international conference on Medical image computing and computer-assisted intervention: Part III
Direct co-calibration of endobronchial ultrasound and video
MIAR'10 Proceedings of the 5th international conference on Medical imaging and augmented reality
IPCAI'11 Proceedings of the Second international conference on Information processing in computer-assisted interventions
MICCAI'05 Proceedings of the 8th international conference on Medical Image Computing and Computer-Assisted Intervention - Volume Part I
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Local excision of rectal cancer with transanal endoscopic microsurgery has proved to be a viable alternative to conventional, more radical techniques, but the reduced sensory experience presents significant challenges for the surgeon. Accurate identification and complete removal of lesions and subsurface targets is currently a difficult task, often exacerbated by intraoperative tissue deformation. This work describes novel ultrasound calibration and effective visualisation methods designed to meet these requirements, relying solely on optical measurements and pattern tracking. Detailed quantitative phantom and porcine validation experiments confirm that the technique is both practical and an accurate means for assessing lesion thickness intraoperatively, leading directly to human clinical trials.