IEEE Trans Vis Comput Graph - Coherent Structures of Characteristic Curves in Symmetric Second Order Tensor Fields.

Tópicos

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Resumo

This paper generalizes the concept of Lagrangian coherent structures, which is known for its potential to visualize coherent regions in vector fields and to distinguish them from each other. In particular, we extend the concept of the flow map to generic mappings of coordinates. As the major application of this generalization, we present a semi-global method for visualizing coherent structures in symmetric second order tensor fields. We demonstrate the usefulness in examples from DT-MRI, uncovering anatomical structures in linear anisotropic regions not amenable to local feature criteria. To further exemplify the suitability of our concept, we also present its application to stress tensor fields. Lastly, an accelerated implementation utilizing GPUs is presented.

Resumo Limpo

paper general concept lagrangian coher structur known potenti visual coher region vector field distinguish particular extend concept flow map generic map coordin major applic general present semiglob method visual coher structur symmetr second order tensor field demonstr use exampl dtmri uncov anatom structur linear anisotrop region amen local featur criteria exemplifi suitabl concept also present applic stress tensor field last acceler implement util gpus present

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