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    ARTICLE

    A Flexible Approach for the Calibration of Biplanar Radiography of the Spine on Conventional Radiological Systems

    Daniel C. Moura1, Jorge G. Barbosa1, Ana M. Reis2, João Manuel R. S. Tavares3

    CMES-Computer Modeling in Engineering & Sciences, Vol.60, No.2, pp. 115-138, 2010, DOI:10.3970/cmes.2010.060.115

    Abstract This paper presents a new method for the calibration of biplanar radiography that makes possible performing 3D reconstructions of the spine using conventional radiological systems. A novel approach is proposed in which a measuring device is used for determining focal distance and have a rough estimation of translation parameters. Using these data, 3D reconstructions of the spine with correct scale were successfully obtained without the need of calibration objects, something that was not previously achieved. For superior results, two optional steps may be executed that involve an optimisation of the geometrical parameters, followed by a… More >

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