Self-Prompting Polyp Segmentation in Colonoscopy using Hybrid Yolo-SAM 2 Model

14 Sep 2024  ยท  Mobina Mansoori, Sajjad Shahabodini, Jamshid Abouei, Konstantinos N. Plataniotis, Arash Mohammadi ยท

Early diagnosis and treatment of polyps during colonoscopy are essential for reducing the incidence and mortality of Colorectal Cancer (CRC). However, the variability in polyp characteristics and the presence of artifacts in colonoscopy images and videos pose significant challenges for accurate and efficient polyp detection and segmentation. This paper presents a novel approach to polyp segmentation by integrating the Segment Anything Model (SAM 2) with the YOLOv8 model. Our method leverages YOLOv8's bounding box predictions to autonomously generate input prompts for SAM 2, thereby reducing the need for manual annotations. We conducted exhaustive tests on five benchmark colonoscopy image datasets and two colonoscopy video datasets, demonstrating that our method exceeds state-of-the-art models in both image and video segmentation tasks. Notably, our approach achieves high segmentation accuracy using only bounding box annotations, significantly reducing annotation time and effort. This advancement holds promise for enhancing the efficiency and scalability of polyp detection in clinical settings https://github.com/sajjad-sh33/YOLO_SAM2.

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Task Dataset Model Metric Name Metric Value Global Rank Result Benchmark
Medical Image Segmentation CVC-ClinicDB Yolo-SAM 2 mean Dice 0.951 # 4
mIoU 0.909 # 4
Medical Image Segmentation Kvasir-SEG Yolo-SAM 2 mean Dice 0.866 # 47
mIoU 0.764 # 46
Polyp Segmentation PolypGen YOlO-SAM 2 Dice 0.808 # 1
mIoU 0.678 # 1
Precision 0.858 # 1
Recall 0.764 # 1
Video Polyp Segmentation SUN-SEG-Easy (Unseen) YOLO-SAM 2 S measure 0.9 # 1
mean E-measure 93.8 # 1
mean F-measure 93.8 # 1
Dice 0.90 # 1
Sensitivity 83.7 # 1
Video Polyp Segmentation SUN-SEG-Hard (Unseen) YOLO-SAM 2 S-Measure 0.894 # 1
mean E-measure 0.941 # 1
mean F-measure 0.932 # 1
Dice 0.902 # 1
Sensitivity 0.852 # 1

Methods


SAM โ€ข YOLOv8