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PubMed · 16686053

Fast DRR generation for 2D/3D registration.

W Birkfellner·R Seemann·M Figl·J Hummel·C Ede·P Homolka·X Yang·P Niederer·H Bergmann
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Abstract

We present a simple and rapid method for generation of perspective digitally rendered radiographs (DRR) for 2D/3D registration based on splat rendering. Suppression of discretization artefacts by means of computation of Gaussian footprints--which is a considerable computational burden in classical splat rendering--is replaced by stochastic motion of either the voxels in the volume to be rendered, or by simulation of a X-ray tube focal spot of finite size. The result is a simple and fast perspective rendering algorithm using only a small subset of voxels. Our method generates slightly blurred DRRs suitable for registration purposes at framerates of approximately 10 Hz when rendering volume images with a size of 30 MB on a standard PC.

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AlgorithmsArtifactsHumansImage EnhancementImage Interpretation, Computer-AssistedImaging, Three-DimensionalInformation Storage and RetrievalRadiographic Image EnhancementReproducibility of ResultsSensitivity and SpecificitySignal Processing, Computer-AssistedSubtraction TechniqueEvaluation StudyJournal Article

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W Birkfellner, R Seemann, M Figl, J Hummel, C Ede, P Homolka, X Yang, P Niederer, H Bergmann. 2005. Fast DRR generation for 2D/3D registration.. https://doi.org/10.1007/11566489_118

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