Differences

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--- neuroelf_gui_-_rendering_ui [2010/08/10 01:08] – created jochen
+++ neuroelf_gui_-_rendering_ui [2011/04/25 15:51] – altered image to reflected v0.9c jochen
@@ Line 2: / Line 2: @@
 ===== Motivation =====
-Whereas slice-displays can give a very "close-to-the-data" look at results of a whole-brain mapping, it sometimes is more desirable to visualize an entire 3D space with one image. One way to do this is by using mesh-based surfaces containing a projection of statistical information. However, the extent in the third dimension (orthogonal to the surface) is not easy to visualize in (and grasp from) such images. Another look at the data is to render the entire dataset slice by slice in a semi-transparent fashion. Here are three examples (click to zoom):
+Whereas slice-displays can give a very "close-to-the-data" look at results of a whole-brain mapping, it sometimes is more desirable to visualize an entire 3D space with one image. One way to do this is by using mesh-based surfaces containing a projection of statistical information. However, the extent in the third dimension (orthogonal to the surface) is not easy to visualize in (and grasp from) such images. Another look at the data is to render the entire dataset slice by slice in a semi-transparent fashion. Here are four examples (click to zoom):
 {{:render_brain_activation.jpg?320|Activation with brain}}
 {{:render_brain_activation_hemisphere.jpg?320|}}
 {{:render_brain_transparentskull_activation.jpg?320|Activation volume map together with opaque brain and transparently rendered skull}}
+{{:lh_backtovmr_rendered.jpg?320|Back-projected left hemisphere surface with activation map}}
 ===== Layout =====
 The Rendering UI is available via the Visualization -> Render menu item as well as the rendering button (below the surface pane button), and it looks like this:
-{{:render_ui_v09b.png|NeuroElf Rendering UI}}
+{{:neuroelf_gui:render_ui_v09c.png|NeuroElf Rendering UI (v0.9c)}}
 The dialog has the following controls and properties:
@@ Line 48: / Line 49: @@
 The full head dataset (colin_ICBMnorm.vmr) was selected in the main UI before invoking the rendering UI, and the background of the brain VMR was filled with a low value (30), and then selected as the secondary alpha channel, which makes all non-brain voxels appear with a very high transparency.
+==== Back-projected surface ====
+The left-hemisphere (160k vertices version) was back-projected to a 0.5mm VMR resolution VMR, border-smoothed, then filled up with a gray intensity value, and then rendered with an activation map overlaid.