long object artifact
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- Dominant language
- Cuda
- Stars
- 249
- Forks
- 37
- PR merge metrics
- No merged PRs in 30d
Description
I noticed an interesting phenomenon.
When I perform FBP reconstruction with a full 360° (1200 frames) scan, both the left (L) and right (R) sides exhibit long-object cone-beam artifacts.
However, when I reconstruct using a short 240° scan (>180° + fan angle (49.5°)), the artifacts on the left (L) side are reduced, while those on the right (R) side become more severe.
Why does this happen?
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Research direction
Start with the attached reconstruction results and compare the full 360° 1200-frame scan with the short 240° scan, including the stated 49.5° fan angle. Determine why the left and right long-object cone-beam artifacts change between scan ranges; done means providing a supported explanation or a reproducible correction.
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Assessment
- Domain
- computer-vision
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100