N. Betrouni, G. Palos, M. Vermandel, S. Maouche, and J. Rousseau (France)
Ultrasound imaging, stereovision, calibration,Measurement and instrumentation.
This paper describes a localization system composed of a stereovision system with two cameras and an ultrasound system. After calibration of 2 cameras, a mask of infra-red LEDs is mounted on the probe. A method for spatial and temporal calibration is presented and used to calibrate the ultrasound system. Position and orientation of each ultrasonic cross-section are precisely measured and a 3D localization is available from the US images with an accuracy of 0.4 mm. We present two clinical applications of the system which gave good results in each case.
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