Which of the following is false about volume rendering? a Volume rendering does

Question

Which of the following is false about volume rendering?

a Volume rendering does not require prior tissue segmentation, unlike surface rendering.

b Volume rendering requires a means of aggregating tissue properties along a sampled path that is orthogonal to the image plane and pierces it at the pixel of interest.

c One strategy for aggregating tissue properties is Maximum Intensity Projection, which assigns the largest tissue voxel value (e.g. Hounsfield unit in CT), along the path, to the image pixel.

d In splatting, every voxel of the image volume is splatted like a snowball onto the viewing surface in front-to-back order.

e None of these statements is false.

Explanation / Answer

a) is correct First point is true.. volume rendering does not require prior tissue segmentation ..

b) is false.. Volume rendering requires a means of aggregating tissue properties along a sampled path that is perpendicular to the image plane .. not orthogonal

c) is correct One strategy for aggregating tissue properties is Maximum Intensity Projection, which assigns the largest tissue voxel value (e.g. Hounsfield unit in CT), along the path, to the image pixel.

d) is correct .. In splatting, every voxel of the image volume is splatted like a snowball onto the viewing surface in front-to-back order.

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So option b is false

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