9 February 2018 Design and validation of an open-source library of dynamic reference frames for research and education in optical tracking
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Abstract
Dynamic reference frames (DRFs) are a common component of modern surgical tracking systems; however, the limited number of commercially available DRFs poses a constraint in developing systems, especially for research and education. This work presents the design and validation of a large, open-source library of DRFs compatible with passive, single-face tracking systems, such as Polaris stereoscopic infrared trackers (NDI, Waterloo, Ontario). An algorithm was developed to create new DRF designs consistent with intra- and intertool design constraints and convert to computer-aided design (CAD) files suitable for three-dimensional printing. A library of 10 such groups, each with 6 to 10 DRFs, was produced and tracking performance was validated in comparison to a standard commercially available reference, including pivot calibration, fiducial registration error (FRE), and target registration error (TRE). Pivot tests showed calibration error (mean±std)=0.46±0.1  mm, indistinguishable from the reference. FRE was 0.15±0.03  mm, and TRE in a CT head phantom was 0.96±0.5  mm, both equivalent to the reference. The library of DRFs offers a useful resource for surgical navigation research and could be extended to other tracking systems and alternative design constraints.
© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE)
Alisa J. V. Brown, Alisa J. V. Brown, Ali Uneri, Ali Uneri, Tharindu S. De Silva, Tharindu S. De Silva, Amir Manbachi, Amir Manbachi, Jeffrey H. Siewerdsen, Jeffrey H. Siewerdsen, } "Design and validation of an open-source library of dynamic reference frames for research and education in optical tracking," Journal of Medical Imaging 5(2), 021215 (9 February 2018). https://doi.org/10.1117/1.JMI.5.2.021215 . Submission: Received: 21 September 2017; Accepted: 12 January 2018
Received: 21 September 2017; Accepted: 12 January 2018; Published: 9 February 2018
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