Using temporal and spatial coherence to accelerate...

Image analysis – Applications – 3-d or stereo imaging analysis

Reexamination Certificate

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C345S420000, C345S424000, C345S426000

Reexamination Certificate

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07317825

ABSTRACT:
A computer-implemented method for intensity projection includes providing volume data, determining an estimated threshold for determining a maximum/minimum intensity value in the volume data from temporal coherence and spatial coherence information, performing the second pass for determining an actual maximum/minimum value along the new ray, wherein the second pass uses the estimated threshold as an initial threshold, and updating the buffer with a new location value where the actual maximum/minimum value for the next frame was determined.

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Ray et al., “Ray Casting Architectures for Volume Visualization,” Sep. 1999, IEEE Transactions on Visualization & Computer Graphics, vol. 5, No. 3, pp. 211-213.
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Wallis et al., “Three-Dimensional Display in Nuclear Medicine,” Dec. 1989, IEEE Transactions on Medical Imaging, vol. 8, No. 4, pp. 297-303.

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