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Deep learning-based medical image segmentation typically requires large amount of labeled data for training, making it less applicable in clinical settings due to high annotation cost. Semi-supervised learning (SSL) has emerged as an…

Image and Video Processing · Electrical Eng. & Systems 2025-03-03 Yichi Zhang , Bohao Lv , Le Xue , Wenbo Zhang , Yuchen Liu , Yu Fu , Yuan Cheng , Yuan Qi

Automated polyp segmentation is critical for early colorectal cancer detection and its prevention, yet remains challenging due to weak boundaries, large appearance variations, and limited annotated data. Lightweight segmentation models such…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Shivanshu Agnihotri , Snehashis Majhi , Deepak Ranjan Nayak

Automatic polyp segmentation is crucial for improving the clinical identification of colorectal cancer (CRC). While Deep Learning (DL) techniques have been extensively researched for this problem, current methods frequently struggle with…

Computer Vision and Pattern Recognition · Computer Science 2026-01-22 Carla Monteiro , Valentina Corbetta , Regina Beets-Tan , Luís F. Teixeira , Wilson Silva

Automatic segmentation methods of polyps is crucial for assisting doctors in colorectal polyp screening and cancer diagnosis. Despite the progress made by existing methods, polyp segmentation faces several challenges: (1) small-sized polyps…

Computer Vision and Pattern Recognition · Computer Science 2025-11-17 Wei Wang , Feng Jiang , Xin Wang

Polyps are early cancer indicators, so assessing occurrences of polyps and their removal is critical. They are observed through a colonoscopy screening procedure that generates a stream of video frames. Segmenting polyps in their natural…

Computer Vision and Pattern Recognition · Computer Science 2024-06-17 Ziang Xu , Jens Rittscher , Sharib Ali

Pseudoprogression (PsP) is an imitation of true tumor progression (TTP) in patients with glioblastoma multiform (GBM). Differentiating them is a challenging and time-consuming task for radiologists. Although deep neural networks can…

Tissues and Organs · Quantitative Biology 2019-02-27 Xiaoming Liu , Michael D. Chan , Xiaobo Zhou , Xiaohua Qian

Segment Anything Model (SAM) demonstrates powerful zero-shot capabilities; however, its accuracy and robustness significantly decrease when applied to medical image segmentation. Existing methods address this issue through modality fusion,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Yiheng Zhong , Zihong Luo , Chengzhi Liu , Feilong Tang , Zelin Peng , Ming Hu , Yingzhen Hu , Jionglong Su , Zongyuan Ge , Imran Razzak

Recent studies on transfer learning have shown that selectively fine-tuning a subset of layers or customizing different learning rates for each layer can greatly improve robustness to out-of-distribution (OOD) data and retain generalization…

Computer Vision and Pattern Recognition · Computer Science 2023-03-29 Junjiao Tian , Xiaoliang Dai , Chih-Yao Ma , Zecheng He , Yen-Cheng Liu , Zsolt Kira

Deep learning-based techniques have proven effective in polyp segmentation tasks when provided with sufficient pixel-wise labeled data. However, the high cost of manual annotation has created a bottleneck for model generalization. To…

Computer Vision and Pattern Recognition · Computer Science 2024-03-22 Duojun Huang , Xinyu Xiong , De-Jun Fan , Feng Gao , Xiao-Jian Wu , Guanbin Li

Segmentation is one of the most important tasks in the medical imaging pipeline as it influences a number of image-based decisions. To be effective, fully supervised segmentation approaches require large amounts of manually annotated…

Computer Vision and Pattern Recognition · Computer Science 2026-03-19 Tyler Ward , Aaron Moseley , Abdullah-Al-Zubaer Imran

Inpainting lesions within different normal backgrounds is a potential method of addressing the generalization problem, which is crucial for polyp segmentation models. However, seamlessly introducing polyps into complex endoscopic…

Computer Vision and Pattern Recognition · Computer Science 2024-05-22 Jiajian Ma , Fangqi Lu , Silin Huang , Song Wu , Zhen Li

Polyp segmentation, a critical concern in medical imaging, has prompted numerous proposed methods aimed at enhancing the quality of segmented masks. While current state-of-the-art techniques produce impressive results, the size and…

Computer Vision and Pattern Recognition · Computer Science 2024-06-24 Quoc-Huy Trinh , Hai-Dang Nguyen , Bao-Tram Nguyen Ngoc , Debesh Jha , Ulas Bagci , Minh-Triet Tran

Colonoscopy is a gold standard procedure but is highly operator-dependent. Automated polyp segmentation, a precancerous precursor, can minimize missed rates and timely treatment of colon cancer at an early stage. Even though there are deep…

Image and Video Processing · Electrical Eng. & Systems 2022-05-10 Nikhil Kumar Tomar , Debesh Jha , Ulas Bagci , Sharib Ali

Colorectal polyp segmentation is critical for early detection of colorectal cancer, yet weak and low contrast boundaries significantly limit automated accuracy. Existing deep models either blur fine edge details or rely on handcrafted…

Image and Video Processing · Electrical Eng. & Systems 2025-09-18 Zhe Yee Tan , Ashwaq Qasem

This study introduces Polyp-DDPM, a diffusion-based method for generating realistic images of polyps conditioned on masks, aimed at enhancing the segmentation of gastrointestinal (GI) tract polyps. Our approach addresses the challenges of…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Zolnamar Dorjsembe , Hsing-Kuo Pao , Furen Xiao

Polyp segmentation is a critical step in colorectal cancer detection, yet it remains challenging due to the diverse shapes, sizes, and low contrast boundaries of polyps in medical imaging. In this work, we propose a novel framework that…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Fatemeh Salahi Chashmi , Roya Sotoudeh

In this study, we address the gradient-based domain generalization problem, where predictors aim for consistent gradient directions across different domains. Existing methods have two main challenges. First, minimization of gradient…

Machine Learning · Computer Science 2025-07-22 Khoi Do , Duong Nguyen , Nam-Khanh Le , Quoc-Viet Pham , Binh-Son Hua , Won-Joo Hwang

Automatic polyp segmentation is crucial for effective diagnosis and treatment in colonoscopy images. Traditional methods encounter significant challenges in accurately delineating polyps due to limitations in feature representation and the…

Computer Vision and Pattern Recognition · Computer Science 2024-10-03 Quang Vinh Nguyen , Thanh Hoang Son Vo , Sae-Ryung Kang , Soo-Hyung Kim

The accurate segmentation of medical images is a crucial step in obtaining reliable morphological statistics. However, training a deep neural network for this task requires a large amount of labeled data to ensure high-accuracy results. To…

Image and Video Processing · Electrical Eng. & Systems 2023-07-04 Xianjun Han , Qianqian Chen , Zhaoyang Xie , Xuejun Li , Hongyu Yang

Early detection, accurate segmentation, classification and tracking of polyps during colonoscopy are critical for preventing colorectal cancer. Many existing deep-learning-based methods for analyzing colonoscopic videos either require…

Computer Vision and Pattern Recognition · Computer Science 2025-04-04 Anwesa Choudhuri , Zhongpai Gao , Meng Zheng , Benjamin Planche , Terrence Chen , Ziyan Wu