Model Fitting using RANSAC for Surgical Tool Localization in 3D Ultrasound Images
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F09%3A00162857" target="_blank" >RIV/68407700:21230/09:00162857 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Model Fitting using RANSAC for Surgical Tool Localization in 3D Ultrasound Images
Original language description
Ultrasound guidance is used for many surgical interventions like biopsy or electrode insertion. We present a method for localization of a thin surgical tool such as a biopsy needle or a micro-electrode in a three dimensional (3D) ultrasound image. The proposed method starts with thresholding and model fitting using RANSAC for robust localization of the axis. Subsequent local optimization refines its position. Finally, the tip of the tool is localized by finding an intensity drop along the axis. Two different tool models are presented, one simple and fast, the second using a learnt a priori information about voxel intensities of the tool and the background. The simulation study shows that our algorithm can localize the tool at almost real time speed even using a Matlab implementation, with accuracy better than 1 mm. In experimental comparison to several alternative localization methods our method appears to be the fastest and the most robust one. We also show results on real 3D ultrasou
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
JD - Use of computers, robotics and its application
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů