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. Show more
Publication status
publishedExternal links
Book title
Medical Image Computing and Computer-Assisted Intervention – MICCAI 2005Journal / series
Lecture Notes in Computer ScienceVolume
Pages / Article No.
Publisher
SpringerEvent
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