Abstract for treece_tr411

Cambridge University Engineering Department Technical Report CUED/F-INFENG/TR411

CORRECTION OF PROBE PRESSURE ARTIFACTS IN FREEHAND 3D ULTRASOUND - INITIAL RESULTS

G.M.Treece, R.W.Prager, A.H.Gee and L.Berman.

April 2001

We present an algorithm which combines non-rigid image-based registration and conventional position sensing to correct probe-pressure-induced registration errors in freehand three-dimensional (3D) ultrasound volumes. The local accuracy of image-based registration enables the accurate freehand acquisition of high resolution (>15 MHz) 3D ultrasound data, opening the way for 3D musculoskeletal examinations. External position sensor readings guarantee the large-scale positional accuracy of the data. The algorithm is shown to increase both the clarity and accuracy of reslices through in-vivo volumetric data sets.

[3.6 MBytes compressed PostScript or 3.0 MBytes PDF, 14 pages]


| (ftp:) treece_tr411.ps.gz | (http:) treece_tr411.ps.gz | (ftp:) treece_tr411.pdf | (http:) treece_tr411.pdf |

If you have difficulty viewing files that end '.gz', which are gzip compressed, then you may be able to find tools to uncompress them at the gzip web site.

If you have difficulty viewing files that are in PostScript, (ending '.ps' or '.ps.gz'), then you may be able to find tools to view them at the gsview web site.

We have attempted to provide automatically generated PDF copies of documents for which only PostScript versions have previously been available. These are clearly marked in the database - due to the nature of the automatic conversion process, they are likely to be badly aliased when viewed at default resolution on screen by acroread.