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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…

Image and Video Processing · Electrical Eng. & Systems 2023-05-02 Yuheng Li , Mingzhe Hu , Xiaofeng Yang

The integration of artificial intelligence into clinical workflows requires reliable and robust models. Repeatability is a key attribute of model robustness. Repeatable models output predictions with low variation during independent tests…

We present a self-supervised approach to training convolutional neural networks for dense depth estimation from monocular endoscopy data without a priori modeling of anatomy or shading. Our method only requires monocular endoscopic videos…

Computer Vision and Pattern Recognition · Computer Science 2019-10-31 Xingtong Liu , Ayushi Sinha , Masaru Ishii , Gregory D. Hager , Austin Reiter , Russell H. Taylor , Mathias Unberath

The colorectal polyps classification is a critical clinical examination. To improve the classification accuracy, most computer-aided diagnosis algorithms recognize colorectal polyps by adopting Narrow-Band Imaging (NBI). However, the NBI…

Computer Vision and Pattern Recognition · Computer Science 2022-06-27 Weijie Ma , Ye Zhu , Ruimao Zhang , Jie Yang , Yiwen Hu , Zhen Li , Li Xiang

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

This paper reports a new continuous 3D loss function for learning depth from monocular images. The dense depth prediction from a monocular image is supervised using sparse LIDAR points, which enables us to leverage available open source…

Computer Vision and Pattern Recognition · Computer Science 2020-08-11 Minghan Zhu , Maani Ghaffari , Yuanxin Zhong , Pingping Lu , Zhong Cao , Ryan M. Eustice , Huei Peng

Early detection of colorectal polyps is of utmost importance for their treatment and for colorectal cancer prevention. Computer vision techniques have the potential to aid professionals in the diagnosis stage, where colonoscopies are…

Computer Vision and Pattern Recognition · Computer Science 2023-07-25 Enric Moreu , Eric Arazo , Kevin McGuinness , Noel E. O'Connor

Monocular visual odometry consists of the estimation of the position of an agent through images of a single camera, and it is applied in autonomous vehicles, medical robots, and augmented reality. However, monocular systems suffer from the…

Computer Vision and Pattern Recognition · Computer Science 2023-01-09 André O. Françani , Marcos R. O. A. Maximo

Data-driven methods have shown tremendous progress in medical image analysis. In this context, deep learning-based supervised methods are widely popular. However, they require a large amount of training data and face issues in…

Computer Vision and Pattern Recognition · Computer Science 2023-06-02 Ziang Xu , Jens Rittscher , Sharib Ali

Early detection and assessment of polyps play a crucial role in the prevention and treatment of colorectal cancer (CRC). Polyp segmentation provides an effective solution to assist clinicians in accurately locating and segmenting polyp…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Jiaxin Mei , Tao Zhou , Kaiwen Huang , Yizhe Zhang , Yi Zhou , Ye Wu , Huazhu Fu

Colonoscopy is crucial for identifying adenomatous polyps and preventing colorectal cancer. However, developing robust models for polyp detection is challenging by the limited size and accessibility of existing colonoscopy datasets. While…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Yifan Xie , Jingge Wang , Tao Feng , Fei Ma , Yang Li

Monocular Depth Estimation (MDE) enables spatial understanding, 3D reconstruction, and autonomous navigation, yet deep learning approaches often predict only relative depth without a consistent metric scale. This limitation reduces…

Computer Vision and Pattern Recognition · Computer Science 2025-08-27 Jiuling Zhang

With the rapid advancements in autonomous driving and robot navigation, there is a growing demand for lifelong learning models capable of estimating metric (absolute) depth. Lifelong learning approaches potentially offer significant cost…

Computer Vision and Pattern Recognition · Computer Science 2023-10-16 Junjie Hu , Chenyou Fan , Liguang Zhou , Qing Gao , Honghai Liu , Tin Lun Lam

Monocular depth estimation (MDE) is a challenging task in computer vision, often hindered by the cost and scarcity of high-quality labeled datasets. We tackle this challenge using auxiliary datasets from related vision tasks for an…

Computer Vision and Pattern Recognition · Computer Science 2025-04-14 Alessio Quercia , Erenus Yildiz , Zhuo Cao , Kai Krajsek , Abigail Morrison , Ira Assent , Hanno Scharr

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

Colorectal cancer (CRC) is one of the few cancers that have an established dysplasia-carcinoma sequence that benefits from screening. Everyone over 50 years of age in Canada is eligible for CRC screening. About 20\% of those people will…

Image and Video Processing · Electrical Eng. & Systems 2024-11-12 Cassandre Notton , Vasudev Sharma , Vincent Quoc-Huy Trinh , Lina Chen , Minqi Xu , Sonal Varma , Mahdi S. Hosseini

Colorectal cancer from the appearance of polyps that can be benign or malignant is one of the most fatal diseases in the world. To find these polyps in patients, colonoscopy is performed, which is a very efficient technique in this case.…

Image and Video Processing · Electrical Eng. & Systems 2021-03-30 Marcus V. L. Branch , Adriele S. Carvalho

Identifying patient characteristics that influence the rate of colorectal polyp recurrence can provide important insights into which patients are at higher risk for recurrence. We used natural language processing to extract polyp…

We present a generic framework for scale-aware direct monocular odometry based on depth prediction from a deep neural network. In contrast with previous methods where depth information is only partially exploited, we formulate a novel depth…

Robotics · Computer Science 2022-07-25 Carlos Campos , Juan D. Tardós

Accurate polyp detection is essential for assisting clinical rectal cancer diagnoses. Colonoscopy videos contain richer information than still images, making them a valuable resource for deep learning methods. Great efforts have been made…

Computer Vision and Pattern Recognition · Computer Science 2023-08-01 Yuncheng Jiang , Zixun Zhang , Ruimao Zhang , Guanbin Li , Shuguang Cui , Zhen Li