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The automatic detection of frames containing polyps from a colonoscopy video sequence is an important first step for a fully automated colonoscopy analysis tool. Typically, such detection system is built using a large annotated data set of…

Image and Video Processing · Electrical Eng. & Systems 2021-02-09 Yuyuan Liu , Yu Tian , Gabriel Maicas , Leonardo Z. C. T. Pu , Rajvinder Singh , Johan W. Verjans , Gustavo Carneiro

Colorectal cancer is among the most prevalent cause of cancer-related mortality worldwide. Detection and removal of polyps at an early stage can help reduce mortality and even help in spreading over adjacent organs. Early polyp detection…

Image and Video Processing · Electrical Eng. & Systems 2023-04-20 Nikhil Kumar Tomar , Ulas Bagci , Debesh Jha

Deep learning based neural networks have gained popularity for a variety of biomedical imaging applications. In the last few years several works have shown the use of these methods for colon cancer detection and the early results have been…

Computer Vision and Pattern Recognition · Computer Science 2023-01-24 Chandana Raju , Sumedh Vilas Datar , Kushala Hari , Kavin Vijay , Suma Ningappa

Monitoring dietary intake is a crucial aspect of promoting healthy living. In recent years, advances in computer vision technology have facilitated dietary intake monitoring through the use of images and depth cameras. However, the current…

Computer Vision and Pattern Recognition · Computer Science 2024-05-15 Aaryam Sharma , Chris Czarnecki , Yuhao Chen , Pengcheng Xi , Linlin Xu , Alexander Wong

Capsule endoscopes, predominantly serving diagnostic functions, provide lucid internal imagery but are devoid of surgical or therapeutic capabilities. Consequently, despite lesion detection, physicians frequently resort to traditional…

Medical Physics · Physics 2024-05-14 Sishen Yuan , Guang Li , Baijia Liang , Lailu Li , Qingzhuo Zheng , Shuang Song , Zhen Li , Hongliang Ren

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

This paper presents the in vivo validation of an inductive wireless power transfer (WPT) system integrated for the first time into a magnetically controlled robotic capsule endoscopy platform. The proposed system enables continuous power…

Endoscopic depth estimation is a critical technology for improving the safety and precision of minimally invasive surgery. It has attracted considerable attention from researchers in medical imaging, computer vision, and robotics. Over the…

Computer Vision and Pattern Recognition · Computer Science 2025-10-16 Ke Niu , Zeyun Liu , Xue Feng , Heng Li , Qika Lin , Kaize Shi

Our work expands the use of capsule networks to the task of object segmentation for the first time in the literature. This is made possible via the introduction of locally-constrained routing and transformation matrix sharing, which reduces…

Image and Video Processing · Electrical Eng. & Systems 2020-12-14 Rodney LaLonde , Ziyue Xu , Ismail Irmakci , Sanjay Jain , Ulas Bagci

This paper presents a colonoscope tracking method utilizing a colon shape estimation method. CT colonography is used as a less-invasive colon diagnosis method. If colonic polyps or early-stage cancers are found, they are removed in a…

Computer Vision and Pattern Recognition · Computer Science 2020-04-21 Masahiro Oda , Holger R. Roth , Takayuki Kitasaka , Kazuhiro Furukawa , Ryoji Miyahara , Yoshiki Hirooka , Nassir Navab , Kensaku Mori

The emergence of capsule endoscopy has provided a means of capturing video of the small intestines without having to resort to an invasive procedure involving intubation. However, real-time video streaming to a receiver outside the body…

Signal Processing · Electrical Eng. & Systems 2022-08-09 Zhengchang Kou , Rita J. Miller , Andrew C. Singer , Michael L. Oelze

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

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

Real-time and robust automatic detection of polyps from colonoscopy videos are essential tasks to help improve the performance of doctors during this exam. The current focus of the field is on the development of accurate but inefficient…

Computer Vision and Pattern Recognition · Computer Science 2022-01-28 David Butler , Yuan Zhang , Tim Chen , Seon Ho Shin , Rajvinder Singh , Gustavo Carneiro

State-of-the-art machine learning models, and especially deep learning ones, are significantly data-hungry; they require vast amounts of manually labeled samples to function correctly. However, in most medical imaging fields, obtaining said…

Computer Vision and Pattern Recognition · Computer Science 2022-05-27 Guillem Pascual , Pablo Laiz , Albert García , Hagen Wenzek , Jordi Vitrià , Santi Seguí

Since human and environmental factors interfere, captured polyp images usually suffer from issues such as dim lighting, blur, and overexposure, which pose challenges for downstream polyp segmentation tasks. To address the challenges of…

Image and Video Processing · Electrical Eng. & Systems 2025-04-16 Pu Wang , Zhihua Zhang , Dianjie Lu , Guijuan Zhang , Youshan Zhang , Zhuoran Zheng

Currently, diagnostic medicine uses a multitude of tools ranging from ionising radiation to histology analysis. With advances in piezoelectric crystal technology, high-frequency ultrasound imaging has developed to achieve comparatively high…

Medical Physics · Physics 2022-01-13 Akhil Kallepalli , James Halls , David B. James , Mark A. Richardson

Biomedical image segmentation is a very important part in disease diagnosis. The term "colonic polyps" refers to polypoid lesions that occur on the surface of the colonic mucosa within the intestinal lumen. In clinical practice, early…

Image and Video Processing · Electrical Eng. & Systems 2024-04-02 Chen Peng , Zhiqin Qian , Kunyu Wang , Qi Luo , Zhuming Bi , Wenjun Zhang

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

This paper presents, for the first time, an image enhancement methodology designed to enhance the clarity of small intestinal villi in Wireless Capsule Endoscopy (WCE) images. This method first separates the low-frequency and high-frequency…

Computer Vision and Pattern Recognition · Computer Science 2024-10-25 Shaojie Zhang , Yinghui Wang , Peixuan Liu , Yukai Wang , Liangyi Huang , Mingfeng Wang , Ibragim. Atadjanov
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