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Colon cancer is expected to become the second leading cause of cancer death in the United States in 2023. Although colonoscopy is one of the most effective methods for early prevention of colon cancer, up to 30% of polyps may be missed by…

Computer Vision and Pattern Recognition · Computer Science 2023-12-15 Xiao Yang , Enmin Song , Guangzhi Ma , Yunfeng Zhu , Dongming Yu , Bowen Ding , Xianyuan Wang

Addressing the Out-of-Distribution (OoD) segmentation task is a prerequisite for perception systems operating in an open-world environment. Large foundational models are frequently used in downstream tasks, however, their potential for OoD…

Computer Vision and Pattern Recognition · Computer Science 2024-09-11 Nazir Nayal , Youssef Shoeb , Fatma Güney

Accurate detection of colorectal cancer and early prevention heavily rely on precise polyp identification during gastrointestinal colonoscopy. Due to limited data, many current state-of-the-art deep learning methods for polyp segmentation…

Image and Video Processing · Electrical Eng. & Systems 2024-05-31 Ankush Gajanan Arudkar , Bernard J. E. Evans

In this study, we propose a three-stage training approach of neural networks for both photometric redshift estimation of galaxies and detection of out-of-distribution (OOD) objects. Our approach comprises supervised and unsupervised…

Instrumentation and Methods for Astrophysics · Physics 2022-02-04 Joongoo Lee , Min-Su Shin

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

Inpainting lesions within different normal backgrounds is a potential method of addressing the generalization problem, which is crucial for polyp segmentation models. However, seamlessly introducing polyps into complex endoscopic…

Computer Vision and Pattern Recognition · Computer Science 2024-05-22 Jiajian Ma , Fangqi Lu , Silin Huang , Song Wu , Zhen Li

Polyps represent an early sign of the development of Colorectal Cancer. The standard procedure for their detection consists of colonoscopic examination of the gastrointestinal tract. However, the wide range of polyp shapes and visual…

Image and Video Processing · Electrical Eng. & Systems 2021-10-06 Adrian Galdran , Gustavo Carneiro , Miguel A. González Ballester

Neural networks are known to produce over-confident predictions on input images, even when these images are out-of-distribution (OOD) samples. This limits the applications of neural network models in real-world scenarios, where OOD samples…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Ke Fan , Yikai Wang , Qian Yu , Da Li , Yanwei Fu

In a clinical setting it is essential that deployed image processing systems are robust to the full range of inputs they might encounter and, in particular, do not make confidently wrong predictions. The most popular approach to safe…

More than 90\% of colorectal cancer is gradually transformed from colorectal polyps. In clinical practice, precise polyp segmentation provides important information in the early detection of colorectal cancer. Therefore, automatic polyp…

Computer Vision and Pattern Recognition · Computer Science 2021-08-12 Xiaoqi Zhao , Lihe Zhang , Huchuan Lu

Automatic polyp detection and segmentation are highly desirable for colon screening due to polyp miss rate by physicians during colonoscopy, which is about 25%. However, this computerization is still an unsolved problem due to various…

Computer Vision and Pattern Recognition · Computer Science 2019-07-23 Hemin Ali Qadir , Younghak Shin , Johannes Solhusvik , Jacob Bergsland , Lars Aabakken , Ilangko Balasingham

Colon polyps are precursors to colorectal cancer, a leading cause of cancer-related mortality worldwide. Early detection is critical for improving patient outcomes. This study investigates the application of deep learning-based object…

Image and Video Processing · Electrical Eng. & Systems 2025-08-20 Md Al Amin , Bikash Kumar Paul

Out-of-distribution (OOD) detection and lossless compression constitute two problems that can be solved by the training of probabilistic models on a first dataset with subsequent likelihood evaluation on a second dataset, where data…

Computer Vision and Pattern Recognition · Computer Science 2021-12-13 Mingtian Zhang , Andi Zhang , Steven McDonagh

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

Most polyp segmentation methods use CNNs as their backbone, leading to two key issues when exchanging information between the encoder and decoder: 1) taking into account the differences in contribution between different-level features and…

Image and Video Processing · Electrical Eng. & Systems 2024-02-20 Bo Dong , Wenhai Wang , Deng-Ping Fan , Jinpeng Li , Huazhu Fu , Ling Shao

Out-of-distribution (OOD) detection is an important building block in trustworthy image recognition systems as unknown classes may arise at test-time. OOD detection methods typically revolve around a single classifier, leading to a split in…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Galadrielle Humblot-Renaux , Gianni Franchi , Sergio Escalera , Thomas B. Moeslund

Computer-aided diagnostics has benefited from the development of deep learning-based computer vision techniques in these years. Traditional supervised deep learning methods assume that the test sample is drawn from the identical…

Computer Vision and Pattern Recognition · Computer Science 2024-07-04 Zesheng Hong , Yubiao Yue , Yubin Chen , Lele Cong , Huanjie Lin , Yuanmei Luo , Mini Han Wang , Weidong Wang , Jialong Xu , Xiaoqi Yang , Hechang Chen , Zhenzhang Li , Sihong Xie

Automatic polyp segmentation has proven to be immensely helpful for endoscopy procedures, reducing the missing rate of adenoma detection for endoscopists while increasing efficiency. However, classifying a polyp as being neoplasm or not and…

Image and Video Processing · Electrical Eng. & Systems 2021-07-13 Phan Ngoc Lan , Nguyen Sy An , Dao Viet Hang , Dao Van Long , Tran Quang Trung , Nguyen Thi Thuy , Dinh Viet Sang

By design, discriminatively trained neural network classifiers produce reliable predictions only for in-distribution samples. For their real-world deployments, detecting out-of-distribution (OOD) samples is essential. Assuming OOD to be…

Machine Learning · Computer Science 2019-10-11 Sachin Vernekar , Ashish Gaurav , Vahdat Abdelzad , Taylor Denouden , Rick Salay , Krzysztof Czarnecki

Automatic and accurate polyp segmentation plays an essential role in early colorectal cancer diagnosis. However, it has always been a challenging task due to 1) the diverse shape, size, brightness and other appearance characteristics of…

Image and Video Processing · Electrical Eng. & Systems 2023-01-13 Ruifei Zhang , Peiwen Lai , Xiang Wan , De-Jun Fan , Feng Gao , Xiao-Jian Wu , Guanbin Li