Monte-Carlo Ray-Tracing for Realistic Interactive Ultrasound Simulation

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dc.contributor.authorMattausch, Oliveren_US
dc.contributor.authorGoksel, Orcunen_US
dc.contributor.editorStefan Bruckner and Bernhard Preim and Anna Vilanova and Helwig Hauser and Anja Hennemuth and Arvid Lundervolden_US
dc.date.accessioned2016-09-07T05:38:00Z
dc.date.available2016-09-07T05:38:00Z
dc.date.issued2016
dc.description.abstractRay-based simulations have been shown to generate impressively realistic ultrasound images in interactive frame rates. Recent efforts used GPU-based surface ray-tracing to simulate complex ultrasound interactions such as multiple reflections and refractions. These methods are restricted to perfectly specular reflections (i.e., following only a single reflective/refractive ray), whereas real tissue exhibits roughness of varying degree at tissue interfaces, causing partly diffuse reflections and refractions. Such surface interactions are significantly more complex and can in general not be handled by such deterministic ray-tracing approaches. However, they can be efficiently computed by Monte-Carlo sampling techniques, where many ray paths are generated with respect to a probability distribution. In this paper we introduce Monte-Carlo ray-tracing for ultrasound. This enables the realistic simulation of ultrasound interactions such as soft shadows and fuzzy reflections. We discuss how to properly weight the contribution of each ray path in order to simulate the behavior of a beamformed ultrasound signal. Tracing many individual rays per transducer element is easily parallelizable on modern GPUs, as opposed to previous approaches based on recursive binary ray-tracing.en_US
dc.description.sectionheadersSimulation and Visual Analysis in Medicine
dc.description.seriesinformationEurographics Workshop on Visual Computing for Biology and Medicine
dc.identifier.doi10.2312/vcbm.20161285
dc.identifier.isbn978-3-03868-010-9
dc.identifier.issn2070-5786
dc.identifier.pages173-181
dc.identifier.urihttps://doi.org/10.2312/vcbm.20161285
dc.identifier.urihttps://diglib.eg.org:443/handle/10.2312/vcbm20161285
dc.publisherThe Eurographics Associationen_US
dc.subjectI.3.3 [Computer Graphics]
dc.subjectPicture/Image Generation
dc.subjectLine and curve generation
dc.titleMonte-Carlo Ray-Tracing for Realistic Interactive Ultrasound Simulationen_US
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VCBM 16: Eurographics Workshop on Visual Computing for Biology and Medicine