@muratmaga and @arumiat, thank you both for such great and detailed suggestions. I have made some progress in my workflow by incorporating suggestions you made here and other posts in combination with my trial-and-error.
I’m going to recap the discussion here for future readers.
Objective / Use case
Segment medical device microCT scans that contain non-organic (plastic, metal, etc) and organic (blood clots) components/substances and quantify the statistics (esp. volume) of each segmented components.
Challenge
The image stacks are large (approximately 70GB-80GB) and the segments are non-continuous (scattered like stars in the night sky). Because of how large the model size is, the computer takes a long time to do a simple segment by threshold and “Show 3D” feature will crash the application even when running with ~800GB of RAM.
Current solution(s)
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Create pseudo-ROI using “Draw tube” effect and “Scissors” effect (add/remove shapes) to create the final segment for pseudo-ROI.
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Use this pseudo-ROI as a mask by selecting it in the “Editable area” dropdown menu of the “Masking” tab when any of the “Segment Editor” effects is selected.
- Utilizing “Colorize Volume” from the “Sandbox” module instead of “Show 3D” of the “Segment Editor” module to view in 3D.