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Single wall closed-form differential ultrasound calibration.

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dc.contributor.author Najafi, Mohammad
dc.contributor.author Afsham, Narges
dc.contributor.author Abolmaesumi, Purang
dc.contributor.author Rohling, Robert N.
dc.date.accessioned 2012-03-05T20:44:02Z
dc.date.available 2012-03-05T20:44:02Z
dc.date.issued 2012
dc.identifier.citation Najafi, Mohammad; Afsham, Narges; Abolmaesumi, Purang; Rohling, Robert N. Single wall closed-form differential ultrasound calibration. Medical Imaging 2012: Image-Guided Procedures, Robotic Interventions, and Modeling, edited by David R. Holmes III, Kenneth H. Wong Proceedings of SPIE, Volume 8316, 83162A, 2012. http://dx.doi.org/10.1117/12.911459 en_US
dc.identifier.uri http://hdl.handle.net/2429/41144
dc.description.abstract In freehand 3D ultrasound, images are acquired while the position of the transducer is recorded with a tracking device. Calibration is essential in this technique to find the transformation from the image coordinates to the reference coordinate system. The single wall technique is a common calibration method because a simple plane phantom is used. Despite its advantages, such as ease of phantom construction and image analysis, this method requires large number of images to converge to the solution. One reason is a lack of a closed-form solution. Also, the technique uses slightly illconditioned sets of equations with a high condition number due to limited range of scanning motions that produce clear images of the plane. Here, a novel closed-form formulation has been proposed for the single wall calibration technique. Also, differential measurements of the plane image are used instead of absolute plane detection to improve accuracy. The closed-form solution leads to more accurate and robust results while providing an insight into understanding error propagation and finding the optimal set of transducer poses. Results have been compared to the conventional single wall technique. A residual error of 0.14 mm is achieved for the proposed method compared to 0.91 mm in the conventional approach. Copyright 2012 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. en_US
dc.language.iso eng en_US
dc.publisher Society of Photo-Optical Instrumentation Engineers en_US
dc.title Single wall closed-form differential ultrasound calibration. en_US
dc.type text en_US
dc.type.text conference Paper en_US
dc.description.affiliation Electrical and Computer Engineering, Dept of en_US
dc.description.reviewstatus Reviewed en_US
dc.rights.copyright Rohling, Robert N. en_US
dc.description.scholarlevel Faculty en_US


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