May I suggest to add a keystroke to scissors functionality so that the user doesn’t have to go back and forth between ‘none’ and ‘scissors’ effects constantly to spin the specimen in the 3D view while segmenting. Perhaps, during the scissors effect holding the shift or control with the left click can temporarily become the rotation.
Also, is it possible to integrate the scissors with ROI clipping? Sometimes I want the scissors to affect only a portion of the volume, not all the slices. With ROI, perhaps there can be an additional option for operation to be effective within ROI (or outside of of ROI).
Thanks,
M
Thanks Andras. Key shortcuts were exactly what I needed. Sped up the tasks quite a bit.
However, i am not sure how editable region setting would work in my task. I tried to illustrate one example here. This highlighted bone is not touching the rest of the specimen. In most cases I can find an angle where nothing is in the field of view behind it, and I can easily remove it with scissors. However, there are cases where I can’t find such an angle, so it becomes more challenging.
Also would it be possible to use the scissors to not to erase something, but to assign a different segment.
You can do all kind of separation, masking, and fusion with the right combination of scissors and masking settings. For example, to assign a part of segment A to segment B:
In segment list (above the effect buttons): select segment B
In Masking / Editable area: select Inside segment A
In Scissors effect options: select Fill inside
Use the same setup as described above (for separating segments) but hide Segment B. This allows you to temporarily hide any parts by assigning to an invisible segment. The hidden parts can be added back later using Scissors effect or Logical operators.
In current Slicer Preview Release, default shortcut for Smoothing is 0, default shortcut for Scissors is Shift+1 (or !). You may not need to use these, as you can switch between the last two effects using the space key, and you can also specify any keyboard shortcut to any action in Slicer (see for example how to make s key toggle sphere brush).
What is your workflow? What tools do you need to switch between frequently, in what order?
finaly! Thank you!!!
Oh…I want to make “vessel segmentation” for AI data.
So I’m using Scissors, Threshold and Islands (also sometime using Logical operators)
I tried so many different ways. But it didn’t work well (Local Threshold and over sampling or Nvidia AiAA or etc…)
How can I separate artery and vein from the brain bone? so hard…
This very page gives you information about ROI nodes. Spend much time tinkering with the basics of each Slicer core tool, and the basics of each Segment Editor tool. From your replies, I grant you should explore much more before performing advanced tasks.
Please have a look at this video. The steps are slightly different as described above to save time.
Note also that if you only need to view the arteries, Volume Rendering is faster and perhaps more efficient. And you should be careful to distinguish between arteries and veins.
