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Polyps are well-known cancer precursors identified by colonoscopy. However, variability in their size, location, and surface largely affect identification, localisation, and characterisation. Moreover, colonoscopic surveillance and removal…

Besides the complex nature of colonoscopy frames with intrinsic frame formation artefacts such as light reflections and the diversity of polyp types/shapes, the publicly available polyp segmentation training datasets are limited, small and…

Computer Vision and Pattern Recognition · Computer Science 2022-11-07 Yan Wen , Lei Zhang , Xiangli Meng , Xujiong Ye

Polyps are the predecessors to colorectal cancer which is considered as one of the leading causes of cancer-related deaths worldwide. Colonoscopy is the standard procedure for the identification, localization, and removal of colorectal…

Image and Video Processing · Electrical Eng. & Systems 2021-01-01 Saruar Alam , Nikhil Kumar Tomar , Aarati Thakur , Debesh Jha , Ashish Rauniyar

Colonoscopy is considered the gold standard for detection of colorectal cancer and its precursors. Existing examination methods are, however, hampered by high overall miss-rate, and many abnormalities are left undetected. Computer-Aided…

Computer Vision and Pattern Recognition · Computer Science 2021-07-28 Debesh Jha , Pia H. Smedsrud , Dag Johansen , Thomas de Lange , Håvard D. Johansen , Pål Halvorsen , Michael A. Riegler

Colonoscopy is the gold standard for examination and detection of colorectal polyps. Localization and delineation of polyps can play a vital role in treatment (e.g., surgical planning) and prognostic decision making. Polyp segmentation can…

Image and Video Processing · Electrical Eng. & Systems 2021-01-01 Nikhil Kumar Tomar , Debesh Jha , Sharib Ali , Håvard D. Johansen , Dag Johansen , Michael A. Riegler , Pål Halvorsen

Colonoscopy is an effective technique for detecting colorectal polyps, which are highly related to colorectal cancer. In clinical practice, segmenting polyps from colonoscopy images is of great importance since it provides valuable…

Image and Video Processing · Electrical Eng. & Systems 2020-07-06 Deng-Ping Fan , Ge-Peng Ji , Tao Zhou , Geng Chen , Huazhu Fu , Jianbing Shen , Ling Shao

Colonoscopy, currently the most efficient and recognized colon polyp detection technology, is necessary for early screening and prevention of colorectal cancer. However, due to the varying size and complex morphological features of colonic…

Image and Video Processing · Electrical Eng. & Systems 2022-06-29 Jinfeng Wang , Qiming Huang , Feilong Tang , Jia Meng , Jionglong Su , Sifan Song

The detection and removal of precancerous polyps through colonoscopy is the primary technique for the prevention of colorectal cancer worldwide. However, the miss rate of colorectal polyp varies significantly among the endoscopists. It is…

Image and Video Processing · Electrical Eng. & Systems 2022-06-24 Nikhil Kumar Tomar , Abhishek Srivastava , Ulas Bagci , Debesh Jha

Background: Colonoscopy remains the gold-standard screening for colorectal cancer. However, significant miss rates for polyps have been reported, particularly when there are multiple small adenomas. This presents an opportunity to leverage…

Image and Video Processing · Electrical Eng. & Systems 2021-06-23 Michael Yeung , Evis Sala , Carola-Bibiane Schönlieb , Leonardo Rundo

Colonoscopy is vital in the early diagnosis of colorectal polyps. Regular screenings can effectively prevent benign polyps from progressing to CRC. While deep learning has made impressive strides in polyp segmentation, most existing models…

Image and Video Processing · Electrical Eng. & Systems 2025-04-21 Jun Zeng , KC Santosh , Deepak Rajan Nayak , Thomas de Lange , Jonas Varkey , Tyler Berzin , Debesh Jha

This paper presents a novel supervised convolutional neural network architecture, "DUCK-Net", capable of effectively learning and generalizing from small amounts of medical images to perform accurate segmentation tasks. Our model utilizes…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Razvan-Gabriel Dumitru , Darius Peteleaza , Catalin Craciun

Video polyp segmentation (VPS) is an important task in computer-aided colonoscopy, as it helps doctors accurately locate and track polyps during examinations. However, VPS remains challenging because polyps often look similar to surrounding…

Computer Vision and Pattern Recognition · Computer Science 2026-02-27 Tong Wang , Yaolei Qi , Siwen Wang , Imran Razzak , Guanyu Yang , Yutong Xie

Objective: Depth estimation is crucial for endoscopic navigation and manipulation, but obtaining ground-truth depth maps in real clinical scenarios, such as the colon, is challenging. This study aims to develop a robust framework that…

Computer Vision and Pattern Recognition · Computer Science 2024-09-24 Sijia Du , Chengfeng Zhou , Suncheng Xiang , Jianwei Xu , Dahong Qian

Segmenting polyps in colonoscopy images is essential for the early identification and diagnosis of colorectal cancer, a significant cause of worldwide cancer deaths. Prior deep learning based models such as Attention based variation, UNet…

Image and Video Processing · Electrical Eng. & Systems 2024-07-30 Al Mohimanul Islam , Sadia Shakiba Bhuiyan , Mysun Mashira , Md. Rayhan Ahmed , Salekul Islam , Swakkhar Shatabda

Colorectal polyps are structural abnormalities of the gastrointestinal tract that can potentially become cancerous in some cases. The study introduces a novel framework for colorectal polyp segmentation named the Multi-Scale and Multi-Path…

Image and Video Processing · Electrical Eng. & Systems 2024-12-04 Malik Abdul Manan , Feng Jinchao , Muhammad Yaqub , Shahzad Ahmed , Syed Muhammad Ali Imran , Imran Shabir Chuhan , Haroon Ahmed Khan

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

Identifying polyps is challenging for automatic analysis of endoscopic images in computer-aided clinical support systems. Models based on convolutional networks (CNN), transformers, and their combinations have been proposed to segment…

Computer Vision and Pattern Recognition · Computer Science 2022-06-08 Nguyen Thanh Duc , Nguyen Thi Oanh , Nguyen Thi Thuy , Tran Minh Triet , Dinh Viet Sang

Colorectal cancer is among the most common cause of cancer worldwide. Removal of precancerous polyps through early detection is essential to prevent them from progressing to colon cancer. We develop an advanced deep learning-based…

Image and Video Processing · Electrical Eng. & Systems 2024-05-02 Debesh Jha , Nikhil Kumar Tomar , Debayan Bhattacharya , Ulas Bagci

Polyp segmentation within colonoscopy video frames using deep learning models has the potential to automate the workflow of clinicians. This could help improve the early detection rate and characterization of polyps which could progress to…

Computer Vision and Pattern Recognition · Computer Science 2023-02-03 Kerr Fitzgerald , Bogdan Matuszewski

Traditional segmentation methods for colonic polyps are mainly designed based on low-level features. They could not accurately extract the location of small colonic polyps. Although the existing deep learning methods can improve the…

Computer Vision and Pattern Recognition · Computer Science 2023-01-18 Yuanyuan Wang , Zhaohong Deng , Qiongdan Lou , Shudong Hu , Kup-sze Choi , Shitong Wang