Patent
Methods, systems, and computer program products for processing three-dimensional image data to render an image from a viewpoint within or beyond an occluding region of the image data
David Borland,John P. Clarke,Russell M. Taylor ll +2 more
- 15 Mar 2006
68
TL;DR: In this paper, a volume rendering transfer function is applied along a portion of each ray outside of the occluding region to render voxels defining surface of interest as visible.
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Abstract: Methods, systems, and computer program products for processing three-dimensional image data to render an image from a viewpoint within or beyond an occluding region of the image data are disclosed. According to one method, a set of three-dimensional image data is accessed. The image data includes image data for a surface of interest and image data for a region occluding the surface of interest from a desired viewpoint. The viewpoint may be within or beyond the occluding region. A plurality of rays is cast from the viewpoint to the surface. Along each ray, an occlusion determination is made independent from a volume rendering transfer function definition to render voxels within the occluding region as transparent or partially transparent. The volume rendering transfer function is applied along a portion of each ray outside of the occluding region to render voxels defining surface of interest as visible. The voxels that define the surface are displayed as visible. The voxels within the occluding region are shown in a transparent or partially transparent manner.
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Citations
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TL;DR: In this paper, a volume of a patient can be mapped with a system operable to identify a plurality of locations and save the locations of a mapping instrument, which can include one or more electrodes that can sense a voltage that can be correlated to a three dimensional location of the electrode at the time of the sensing or measurement.
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