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Stack to Windows Add Slice Delete Slice Next Slice > Last Slice < Make Movie Capture Frames Animate Average Make Montage Capture Color RGB to 24-bit Color 8-bit Color to RGB RGB to HSV Register Project Reslice Stack Info Auto Register Depth Of Focus Make Mosaic |
Generates an
animation sequence by projecting through a rotating 3D data set onto a
plane. Each frame in the animation sequence is the result of projecting
from a different viewing angle. To visualize this, imagine a field of
parallel rays passing through a volume containing one or more solid
objects and striking a screen oriented normal to the directions of the
rays. Each ray projects a value onto the screen, or projection plane,
based on the values of points along its path. Three methods are
available for calculating the projections onto this plane:
nearest-point, brightest-point, and mean-value. The choice of
projection method and the settings of various visualization parameters
determine how both surface and interior structures will appear.
Distance Between Slices is the interval, in pixels, between the slices that make up the volume. Image projects the volume onto the viewing plane at each Rotation Angle Increment, beginning with the volume rotated by Initial Angle and ending once the volume has been rotated by Total Rotation. The Lower and Upper Transparency Bound parameters determine the transparency of structures in the volume. Projection calculations disregard points having values less than the lower threshold or greater than the upper threshold. Setting these thresholds permits making background points (those not belonging to any structure) invisible. By setting appropriate thresholds, you can strip away layers having reasonably uniform and unique intensity values and highlight (or make invisible) inner structures. Note that you can use density slicing to set the transparency bounds. |
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Steve Barrett November 2014 |
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