Precise pose recovery of distal locking holes from single calibrated fluoroscopic image via a novel variable decomposition approach

Zhang, Xuan; Zheng, Guoyan (2007). Precise pose recovery of distal locking holes from single calibrated fluoroscopic image via a novel variable decomposition approach. In: 4th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, 2007. ISBI 2007 (pp. 1156-1159). IEEE 10.1109/ISBI.2007.357062

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This paper presents a novel variable decomposition approach for pose recovery of the distal locking holes using single calibrated fluoroscopic image. The problem is formulated as a model-based optimal fitting process, where the control variables are decomposed into two sets: (a) the angle between the nail axis and its projection on the imaging plane, and (b) the translation and rotation of the geometrical model of the distal locking hole around the nail axis. By using an iterative algorithm to find the optimal values of the latter set of variables for any given value of the former variable, we reduce the multiple-dimensional model-based optimal fitting problem to a one-dimensional search along a finite interval. We report the results of our in vitro experiments, which demonstrate that the accuracy of our approach is adequate for successful distal locking of intramedullary nails.

Item Type:

Conference or Workshop Item (Paper)

Division/Institute:

04 Faculty of Medicine > Pre-clinic Human Medicine > Institute for Surgical Technology & Biomechanics ISTB [discontinued]

UniBE Contributor:

Zhang, Xuan and Zheng, Guoyan

Subjects:

500 Science > 570 Life sciences; biology
600 Technology > 610 Medicine & health

ISSN:

1945-7928

ISBN:

1-4244-0672-2

Publisher:

IEEE

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:57

Last Modified:

13 Dec 2014 07:13

Publisher DOI:

10.1109/ISBI.2007.357062

Web of Science ID:

000252957300290

BORIS DOI:

10.7892/boris.24211

URI:

https://boris.unibe.ch/id/eprint/24211 (FactScience: 47464)

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