Ray-casting time-varying volume data sets with frame-to-frame coherence
Visualitza/Obre
Estadístiques de LA Referencia / Recolecta
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/84697
Tipus de documentReport de recerca
Data publicació2005-05
Condicions d'accésAccés obert
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Abstract
The goal of this paper is the proposal and evaluation of a ray-casting strategy that takes advantage of the spatial and temporal coherence in image-space as well as in object-space in order to speed up rendering. It is based on a double structure: in image-space, a temporal buffer that stores for each pixel the next instant of time in which the pixel must be recomputed, and in object-space a Temporal
Run-Length Encoding of the voxel values through time. The algorithm skips empty and unchanged pixels through three different space-leaping strategies. It can compute the images sequentially in time or generate them simultaneously in batch. In addition, it can handle simultaneously several data modalities. Finally, an on-purpose out-of-core strategy is used to handle large datasets. The tests performed on two medical datasets and various phantom datasets show that the proposed strategy significantly speeds-up rendering.
CitacióTost, D., Grau, S., Ferré, M., Puig, A. "Ray-casting time-varying volume data sets with frame-to-frame coherence". 2005.
Forma partLSI-05-20-R
Fitxers | Descripció | Mida | Format | Visualitza |
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R05-20.pdf | 6,380Mb | Visualitza/Obre |