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Identifying unique polyps in colon capsule endoscopy (CCE) images is a critical yet challenging task for medical personnel due to the large volume of images, the cognitive load it creates for clinicians, and the ambiguity in labeling…

Computer Vision and Pattern Recognition · Computer Science 2026-01-22 Puneet Sharma , Kristian Dalsbø Hindberg , Eibe Frank , Benedicte Schelde-Olesen , Ulrik Deding

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

Polyps in the colon are widely known cancer precursors identified by colonoscopy. Whilst most polyps are benign, the polyp's number, size and surface structure are linked to the risk of colon cancer. Several methods have been developed to…

Accurate polyp segmentation is of great importance for colorectal cancer diagnosis and treatment. However, due to the high cost of producing accurate mask annotations, existing polyp segmentation methods suffer from severe data shortage and…

Computer Vision and Pattern Recognition · Computer Science 2022-12-08 Jun Wei , Yiwen Hu , Guanbin Li , Shuguang Cui , S Kevin Zhou , Zhen Li

Self-supervised monocular depth estimation methods aim to be used in critical applications such as autonomous vehicles for environment analysis. To circumvent the potential imperfections of these approaches, a quantification of the…

Computer Vision and Pattern Recognition · Computer Science 2023-11-14 Rémi Marsal , Florian Chabot , Angelique Loesch , William Grolleau , Hichem Sahbi

Colorectal cancer (CRC) is one of the most commonly diagnosed cancers all over the world. It starts as a polyp in the inner lining of the colon. To prevent CRC, early polyp detection is required. Colonosopy is used for the inspection of the…

Computer Vision and Pattern Recognition · Computer Science 2025-01-17 Alok Ranjan Sahoo , Satya Sangram Sahoo , Pavan Chakraborty

Effectively measuring and modeling the reliability of a trained model is essential to the real-world deployment of monocular depth estimation (MDE) models. However, the intrinsic ill-posedness and ordinal-sensitive nature of MDE pose major…

Computer Vision and Pattern Recognition · Computer Science 2023-07-20 Mochu Xiang , Jing Zhang , Nick Barnes , Yuchao Dai

Potentially precancerous polyps detected with CT colonography (CTC) need to be removed subsequently, using an optical colonoscope (OC). Due to large colonic deformations induced by the colonoscope, even very experienced colonoscopists find…

Computer Vision and Pattern Recognition · Computer Science 2015-01-16 Holger R. Roth , Thomas E. Hampshire , Emma Helbren , Mingxing Hu , Roser Vega , Steve Halligan , David J. Hawkes

Colorectal polyps are abnormal tissues growing on the intima of the colon or rectum with a high risk of developing into colorectal cancer, the third leading cause of cancer death worldwide. Early detection and removal of colon polyps via…

Computer Vision and Pattern Recognition · Computer Science 2021-01-12 Xinzi Sun , Dechun Wang , Chenxi Zhang , Pengfei Zhang , Zinan Xiong , Yu Cao , Benyuan Liu , Xiaowei Liu , Shuijiao Chen

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

The scarcity of data in medical domains hinders the performance of Deep Learning models. Data augmentation techniques can alleviate that problem, but they usually rely on functional transformations of the data that do not guarantee to…

Computer Vision and Pattern Recognition · Computer Science 2024-12-02 Adrian Tormos , Blanca Llauradó , Fernando Núñez , Axel Romero , Dario Garcia-Gasulla , Javier Béjar

Automatic analysis of colonoscopy images has been an active field of research motivated by the importance of early detection of precancerous polyps. However, detecting polyps during the live examination can be challenging due to various…

Computer-aided detection, localisation, and segmentation methods can help improve colonoscopy procedures. Even though many methods have been built to tackle automatic detection and segmentation of polyps, benchmarking of state-of-the-art…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Debesh Jha , Sharib Ali , Nikhil Kumar Tomar , Håvard D. Johansen , Dag D. Johansen , Jens Rittscher , Michael A. Riegler , Pål Halvorsen

Automatic detection of polyps is challenging because different polyps vary greatly, while the changes between polyps and their analogues are small. The state-of-the-art methods are based on convolutional neural networks (CNNs). However,…

Computer Vision and Pattern Recognition · Computer Science 2022-01-26 Jianwei Xu , Ran Zhao , Yizhou Yu , Qingwei Zhang , Xianzhang Bian , Jun Wang , Zhizheng Ge , Dahong Qian

Self-supervised learning for monocular depth estimation is widely investigated as an alternative to supervised learning approach, that requires a lot of ground truths. Previous works have successfully improved the accuracy of depth…

Computer Vision and Pattern Recognition · Computer Science 2020-11-25 Noriaki Hirose , Shun Taguchi , Keisuke Kawano , Satoshi Koide

Colonoscopy screening is the gold standard procedure for assessing abnormalities in the colon and rectum, such as ulcers and cancerous polyps. Measuring the abnormal mucosal area and its 3D reconstruction can help quantify the surveyed area…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Pedro Esteban Chavarrias Solano , Andrew Bulpitt , Venkataraman Subramanian , Sharib Ali

In this paper we consider the problem of single monocular image depth estimation. It is a challenging problem due to its ill-posedness nature and has found wide application in industry. Previous efforts belongs roughly to two families:…

Computer Vision and Pattern Recognition · Computer Science 2018-01-16 Yiran Wu , Sihao Ying , Lianmin Zheng

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

Computerized detection of colonic polyps remains an unsolved issue because of the wide variation in the appearance, texture, color, size, and presence of the multiple polyp-like imitators during colonoscopy. In this paper, we propose a deep…

Computer Vision and Pattern Recognition · Computer Science 2020-08-18 Tariq Rahim , Syed Ali Hassan , Soo Young Shin

While several previous studies have devised methods for segmentation of polyps, most of these methods are not rigorously assessed on multi-center datasets. Variability due to appearance of polyps from one center to another, difference in…

Computer Vision and Pattern Recognition · Computer Science 2024-06-17 Rebecca S. Stone , Pedro E. Chavarrias-Solano , Andrew J. Bulpitt , David C. Hogg , Sharib Ali