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Polyp segmentation in colonoscopy is crucial for detecting colorectal cancer. However, it is challenging due to variations in the structure, color, and size of polyps, as well as the lack of clear boundaries with surrounding tissues.…

Computer Vision and Pattern Recognition · Computer Science 2024-12-12 Tapas Kumar Dutta , Snehashis Majhi , Deepak Ranjan Nayak , Debesh Jha

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

Early identification and removal of polyps can reduce the risk of developing colorectal cancer. However, the diverse morphologies, complex backgrounds and often concealed nature of polyps make polyp segmentation in colonoscopy images highly…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Yanguang Sun , Hengmin Zhang , Jianjun Qian , Jian Yang , Lei Luo

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

Open-vocabulary segmentation poses significant challenges, as it requires segmenting and recognizing objects across an open set of categories in unconstrained environments. Building on the success of powerful vision-language (ViL)…

Computer Vision and Pattern Recognition · Computer Science 2024-09-06 Xi Chen , Haosen Yang , Sheng Jin , Xiatian Zhu , Hongxun Yao

Colonoscopy is still the main method of detection and segmentation of colonic polyps, and recent advancements in deep learning networks such as U-Net, ResUNet, Swin-UNet, and PraNet have made outstanding performance in polyp segmentation.…

Image and Video Processing · Electrical Eng. & Systems 2025-08-14 Madan Baduwal

Polyp segmentation is a crucial step towards computer-aided diagnosis of colorectal cancer. However, most of the polyp segmentation methods require pixel-wise annotated datasets. Annotated datasets are tedious and time-consuming to produce,…

Computer Vision and Pattern Recognition · Computer Science 2022-11-23 Guangyu Ren , Michalis Lazarou , Jing Yuan , Tania Stathaki

Colonoscopy is widely recognised as the gold standard procedure for the early detection of colorectal cancer (CRC). Segmentation is valuable for two significant clinical applications, namely lesion detection and classification, providing…

Image and Video Processing · Electrical Eng. & Systems 2022-08-18 Edward Sanderson , Bogdan J. Matuszewski

Accurate endoscopic image segmentation on the polyps is critical for early colorectal cancer detection. However, this task remains challenging due to low contrast with surrounding mucosa, specular highlights, and indistinct boundaries. To…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Juntong Fan , Shuyi Fan , Debesh Jha , Changsheng Fang , Tieyong Zeng , Hengyong Yu , Dayang Wang

Deep learning in gastrointestinal endoscopy can assist to improve clinical performance and be helpful to assess lesions more accurately. To this extent, semantic segmentation methods that can perform automated real-time delineation of a…

Image and Video Processing · Electrical Eng. & Systems 2021-04-23 Debesh Jha , Nikhil Kumar Tomar , Sharib Ali , Michael A. Riegler , Håvard D. Johansen , Dag Johansen , Thomas de Lange , Pål Halvorsen

Accurate segmentation of tubular structures in medical images, such as vessels and airway trees, is crucial for computer-aided diagnosis, radiotherapy, and surgical planning. However, significant challenges exist in algorithm design when…

Image and Video Processing · Electrical Eng. & Systems 2025-04-11 Yi Huang , Ke Zhang , Wei Liu , Yuanyuan Wang , Vishal M. Patel , Le Lu , Xu Han , Dakai Jin , Ke Yan

Given the close association between colorectal cancer and polyps, the diagnosis and identification of colorectal polyps play a critical role in the detection and surgical intervention of colorectal cancer. In this context, the automatic…

Computer Vision and Pattern Recognition · Computer Science 2023-09-13 Xuefeng Wei , Xuan Zhou

Automated polyp segmentation is essential for early diagnosis of colorectal cancer, yet developing robust models remains challenging due to limited annotated data and significant performance degradation under domain shift. Although…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Haoran Xi , Chen Liu , Xiaolin Li

We provide a high fidelity deep learning algorithm (HyperSeg) for interactive video segmentation tasks using a convolutional network with context-aware skip connections, and compressed, hypercolumn image features combined with a…

Computer Vision and Pattern Recognition · Computer Science 2020-11-24 Anthony D. Rhodes , Manan Goel

Objective: To develop a novel deep learning framework for the automated segmentation of colonic polyps in colonoscopy images, overcoming the limitations of current approaches in preserving precise polyp boundaries, incorporating multi-scale…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Chandravardhan Singh Raghaw , Aryan Yadav , Jasmer Singh Sanjotra , Shalini Dangi , Nagendra Kumar

Weakly-supervised medical image segmentation is a challenging task that aims to reduce the annotation cost while keep the segmentation performance. In this paper, we present a novel framework, SimTxtSeg, that leverages simple text cues to…

Computer Vision and Pattern Recognition · Computer Science 2024-09-26 Yuxin Xie , Tao Zhou , Yi Zhou , Geng Chen

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

Fine-grained visual categorization (FGVC) aims at recognizing objects from similar subordinate categories, which is challenging and practical for human's accurate automatic recognition needs. Most FGVC approaches focus on the attention…

Computer Vision and Pattern Recognition · Computer Science 2022-09-01 Hongbo Sun , Xiangteng He , Yuxin Peng

Deep learning has shown excellent performance in analysing medical images. However, datasets are difficult to obtain due privacy issues, standardization problems, and lack of annotations. We address these problems by producing realistic…

Computer Vision and Pattern Recognition · Computer Science 2023-07-24 Enric Moreu , Eric Arazo , Kevin McGuinness , Noel E. O'Connor

Detection of colon polyps has become a trending topic in the intersecting fields of machine learning and gastrointestinal endoscopy. The focus has mainly been on per-frame classification. More recently, polyp segmentation has gained…

Image and Video Processing · Electrical Eng. & Systems 2021-07-02 Vajira Thambawita , Steven A. Hicks , Pål Halvorsen , Michael A. Riegler