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Motion Tracking from Digitally Reconstructed Radiographs

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Tracking accurately in-vivo bone motion for orthopaedic research applications requires the acquisition of a sequence of radiation-based medical images such as 2D X-ray images or 3D computed tomography (CT) volumes. The Digitally-Reconstructed Radiograph (DRR) technique is often used to minimize in vivo radiation exposure while tracking bone motion dynamically. We aim to develop a robust and accurate method for recovering bone motion from sequences of radiographic images.


Biomedical Imaging and Visualization


William Anderst
Md. Abedul Haque
Mary Letera
Liz Marai
Scott Tashman


University of Pittsburgh Startup Grant

NSF IIS-1130458 (CAREER REU 2011)

NSF CAREER IIS-0952720 *old* (Tracking, Computational Modeling and Interdisciplinary Edu)

NSF CAREER IIS-1541277 *new* (Tracking, Computational Modeling and Interdisciplinary Edu)


Knee Jump



BBSI: Data-driven Modeling of Joints





Md. A. Haque, W. Anderst, S. Tashman, G.E. Marai, "Hierarchical Model-based Tracking of Cervical Vertebrae from Dynamic Biplane Radiographs", Journal of Medical Engineering and Physics, Vol. 35(7), pp. 994--1004, Jul 2013. (pdf) (bibtex: Haque-2013-HMB).

Md. A. Haque, G. E. Marai, "Image to Mesh: Spinal Ligament 3D Surface Models from Bone Volume Images and Dynamic Radiographs", MeshMed: Workshop on Mesh Processing in Medical Imaging, Medical Image Computing and Computer Assisted Intervention (MICCAI) 2013, pp. 1--12, Sep 2013. (pdf) (bibtex: Haque-2013-ITM).


Md. A. Haque, W. Anderst, S. Tashman, G.E. Marai, "Validation of a Non-invasive Automated Hierarchical Method to Precisely Measure Lumbar Spine Movement", The 2012 Annual Meeting of the Orthopaedic Research Society, pp. 1--1, Feb 2012. (pdf) (bibtex: Haque-2012-VOA).


G.E. Marai, D.H. Laidlaw, "Markerless inter-subject bone shape matching using 2D projections", MICCAI 2005 short papers, pp. 0--0, 2005. (pdf) (bibtex: Marai-2005-MIS).