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Colorectal cancer is one of fatal cancer worldwide. Colonoscopy is the standard treatment for examination, localization, and removal of colorectal polyps. However, it has been shown that the miss-rate of colorectal polyps during colonoscopy…

图像与视频处理 · 电气工程与系统科学 2021-01-12 Nikhil Kumar Tomar

Virtual colonoscopy (VC) allows a physician to virtually navigate within a reconstructed 3D colon model searching for colorectal polyps. Though VC is widely recognized as a highly sensitive and specific test for identifying polyps, one…

Colon polyps are considered important precursors for colorectal cancer. Automatic segmentation of colon polyps can significantly reduce the misdiagnosis of colon cancer and improve physician annotation efficiency. While many methods have…

图像与视频处理 · 电气工程与系统科学 2023-05-02 Yuheng Li , Mingzhe Hu , Xiaofeng Yang

In this paper, we propose and analyse a system that can automatically detect, localise and classify polyps from colonoscopy videos. The detection of frames with polyps is formulated as a few-shot anomaly classification problem, where the…

Colorectal cancer (CRC) is a common and lethal disease. Globally, CRC is the third most commonly diagnosed cancer in males and the second in females. For colorectal cancer, the best screening test available is the colonoscopy. During a…

图像与视频处理 · 电气工程与系统科学 2019-09-27 Dechun Wang , Ning Zhang , Xinzi Sun , Pengfei Zhang , Chenxi Zhang , Yu Cao , Benyuan Liu

Virtual colonoscopy (VC) allows a radiologist to navigate through a 3D colon model reconstructed from a computed tomography scan of the abdomen, looking for polyps, the precursors of colon cancer. Polyps are seen as protrusions on the colon…

计算机视觉与模式识别 · 计算机科学 2018-09-19 Ji Hwan Park , Saad Nadeem , Joseph Marino , Kevin Baker , Matthew Barish , Arie Kaufman

Early diagnosis and treatment of polyps during colonoscopy are essential for reducing the incidence and mortality of Colorectal Cancer (CRC). However, the variability in polyp characteristics and the presence of artifacts in colonoscopy…

图像与视频处理 · 电气工程与系统科学 2024-09-17 Mobina Mansoori , Sajjad Shahabodini , Jamshid Abouei , Konstantinos N. Plataniotis , Arash Mohammadi

Colorectal polyps are important precursors to colon cancer, a major health problem. Colon capsule endoscopy (CCE) is a safe and minimally invasive examination procedure, in which the images of the intestine are obtained via digital cameras…

计算机视觉与模式识别 · 计算机科学 2014-07-15 Alexander V. Mamonov , Isabel N. Figueiredo , Pedro N. Figueiredo , Yen-Hsi Richard Tsai

We present a computer-aided detection algorithm for polyps in optical colonoscopy images. Polyps are the precursors to colon cancer. In the US alone, more than 14 million optical colonoscopies are performed every year, mostly to screen for…

计算机视觉与模式识别 · 计算机科学 2016-09-13 Saad Nadeem , Arie Kaufman

Visualizing colonoscopy is crucial for medical auxiliary diagnosis to prevent undetected polyps in areas that are not fully observed. Traditional feature-based and depth-based reconstruction approaches usually end up with undesirable…

计算机视觉与模式识别 · 计算机科学 2024-07-24 Zhenhua Wu , Yanlin Jin , Liangdong Qiu , Xiaoguang Han , Xiang Wan , Guanbin Li

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…

图像与视频处理 · 电气工程与系统科学 2020-07-06 Deng-Ping Fan , Ge-Peng Ji , Tao Zhou , Geng Chen , Huazhu Fu , Jianbing Shen , Ling Shao

We improved an existing end-to-end polyp detection model with better average precision validated by different data sets with trivial cost on detection speed. Our previous work on detecting polyps within colonoscopy provided an efficient…

计算机视觉与模式识别 · 计算机科学 2025-03-25 Jialin Yu , Huogen Wang , Ming Chen

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,…

计算机视觉与模式识别 · 计算机科学 2022-01-26 Jianwei Xu , Ran Zhao , Yizhou Yu , Qingwei Zhang , Xianzhang Bian , Jun Wang , Zhizheng Ge , Dahong Qian

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…

计算机视觉与模式识别 · 计算机科学 2024-10-03 Quang Vinh Nguyen , Thanh Hoang Son Vo , Sae-Ryung Kang , Soo-Hyung Kim

Accurate detection of polyps is of critical importance for the early and intermediate stages of colorectal cancer diagnosis. Compared to static images, dynamic colonoscopy videos provide more comprehensive visual information, which can…

计算机视觉与模式识别 · 计算机科学 2025-08-06 Zilin Chen , Shengnan Lu

Automated diagnostic systems (ADS) have shown significant potential in the early detection of polyps during endoscopic examinations, thereby reducing the incidence of colorectal cancer. However, due to high annotation costs and strict…

计算机视觉与模式识别 · 计算机科学 2025-10-09 Shengyuan Liu , Zhen Chen , Qiushi Yang , Weihao Yu , Di Dong , Jiancong Hu , Yixuan Yuan

Objectives: Timely and accurate detection of colorectal polyps plays a crucial role in diagnosing and preventing colorectal cancer, a major cause of mortality worldwide. This study introduces a new, lightweight, and efficient framework for…

计算机视觉与模式识别 · 计算机科学 2025-10-14 Saadat Behzadi , Danial Sharifrazi , Bita Mesbahzadeh , Javad Hassannataj Joloudari , Roohallah Alizadehsani

Colorectal cancer (CRC), a lethal disease, begins with the growth of abnormal mucosal cell proliferation called polyps in the inner wall of the colon. When left undetected, polyps can become malignant tumors. Colonoscopy is the standard…

计算机视觉与模式识别 · 计算机科学 2025-09-24 Siddharth Gupta , Jitin Singla

Background and Objective: Colorectal cancer prevention relies on early detection of polyps during colonoscopy. Existing public datasets, such as CVC-ClinicDB and Kvasir-SEG, provide valuable benchmarks but are limited by small sample sizes,…

图像与视频处理 · 电气工程与系统科学 2025-11-11 Ridoy Chandra Shil , Ragib Abid , Tasnia Binte Mamun , Samiul Based Shuvo , Masfique Ahmed Bhuiyan , Jahid Ferdous

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…

图像与视频处理 · 电气工程与系统科学 2022-06-24 Nikhil Kumar Tomar , Abhishek Srivastava , Ulas Bagci , Debesh Jha