Distance Estimation for 3D Freehand Ultrasound-Scans with Visualization System
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Some primary concerns with freehand 3D ultrasound are time-consuming calibration operations, overall accuracy, and computation time during the 3D reconstruction process. A procedure was developed to reduce the calibration time to only 10 seconds by planning the path of the probe. A decrease in marginal error may improve the overall accuracy by searching axial and lateral distances with a maximum correlation coefficient, and was based on constructing an adaptive decorrelation curve from images containing Rayleigh and coherent scatters. Marginal errors were reduced in the range of 3% to 11% when the distance estimation was between 0.15mm and 0.375mm in in-vitro studies. To save computation time within the 3D reconstruction, a low-resolution 3D reconstruction algorithm is proposed so that verification can be completed prior to computing a high-resolution reconstruction.
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Copyright © 2017 the author(s). Theses may be used for non-commercial research, educational, or related academic purposes only. Such uses include personal study, research, scholarship, and teaching. Theses may only be shared by linking to Carleton University Institutional Repository and no part may be used without proper attribution to the author. No part may be used for commercial purposes directly or indirectly via a for-profit platform; no adaptation or derivative works are permitted without consent from the copyright owner.
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wei-distanceestimationfor3dfreehandultrasoundscans.pdf | 2023-05-05 | Public | Download |