Paper Title:
Freehand 3D Ultrasound Calibration Based on Two-Layer Z-Fiducial Phantom
  Abstract

Spatial calibration is a key technique in Freehand 3D Ultrasound. In this article, a two-layer Z-fiducial phantom with one “Z” shaped fiducial in each layer is used to perform spatial calibration. After freehand scanning above the phantom, the intersections of the scan plane and Z-fiducial plane in B-scans are segmented, and the calibration transformation matrix between the coordinate system of the position sensor receiver and B-scan is calculated using the least-squares fitting algorithm. At last, the calibration result is evaluated on two criteria: precision and accuracy. The result shows that our phantom is convenient as well as reliable for freehand spatial calibration.

  Info
Periodical
Advanced Materials Research (Volumes 317-319)
Chapter
Mechatronics
Edited by
Xin Chen
Pages
638-642
DOI
10.4028/www.scientific.net/AMR.317-319.638
Citation
X. Y. Wang, D. M. Wu, Z. J. Du, "Freehand 3D Ultrasound Calibration Based on Two-Layer Z-Fiducial Phantom", Advanced Materials Research, Vols. 317-319, pp. 638-642, 2011
Online since
August 2011
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Price
$32.00
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