How do I choose filter parameters for volume rendering?
You can define filter parameters after opening a file in 3D Scene Shading window. This is an interactive process. You can either right-click the window and choose Set Filter Parameters or select the corresponding item in the Method menu. In the dialog box you fill in the filter boundaries in the color-fields. If you do not know the appropriate values for a given structure, please follow the process below: Open the .i3 file in the 3D Slice Sequence window. With cursor placed on the 2D image, click the right-mouse button and drag the cursor. At the bottom of the screen, you will see three numbers. The third one (after “:”) shows you the tissue density of the structure, on which your pointer is situated. Move the pointer to the structure you want to reconstruct and write down its average density. Then in Filter Parameters window define for low value: the average one – 10?30, and for high value: the average one + 10?30. Using Preview option , you can check if the selected values cover the
