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Influence of prompting strategies on segment anything model (SAM) for short-axis cardiac MRI segmentation.
In: (Bildverarbeitung für die Medizin 2024). Switzerland: Springer Vieweg Verlag, 2024. 54-59 (Inf. aktuell)
The segment anything model (SAM) has recently emerged as a significant breakthrough in foundation models, demonstrating remarkable zero-shot performance in object segmentation tasks. While SAM is designed for generalization, it exhibits limitations in handling specific medical imaging tasks that require fine-structure segmentation or precise boundaries. In this paper, we focus on the task of cardiac magnetic resonance imaging (cMRI) short-axis view segmentation using the SAM foundation model. We conduct a comprehensive investigation of the impact of different prompting strategies (including bounding boxes, positive points, negative points, and their combinations) on segmentation performance. We evaluate on two public datasets using the baseline model and models fine-tuned with varying amounts of annotated data, ranging from a limited number of volumes to a fully annotated dataset. Our findings indicate that prompting strategies significantly influence segmentation performance. Combining positive points with either bounding boxes or negative points shows substantial benefits, but little to no benefit when combined simultaneously. We further observe that fine-tuning SAM with a few annotated volumes improves segmentation performance when properly prompted. Specifically, fine-tuning with bounding boxes has a positive impact, while fine-tuning without bounding boxes leads to worse results compared to baseline.
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Publication type
Article: Conference contribution
Language
english
Publication Year
2024
HGF-reported in Year
2024
ISSN (print) / ISBN
1431-472X
e-ISSN
1431-472X
Conference Title
Bildverarbeitung für die Medizin 2024
Journal
Informatik aktuell
Quellenangaben
Pages: 54-59
Publisher
Springer Vieweg Verlag
Publishing Place
Switzerland
Institute(s)
Institute for Machine Learning in Biomed Imaging (IML)
POF-Topic(s)
30205 - Bioengineering and Digital Health
Research field(s)
Enabling and Novel Technologies
PSP Element(s)
G-507100-001
WOS ID
001284890200016
Erfassungsdatum
2024-09-16