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Multi-centre colonoscopy images from various medical centres exhibit distinct complicating factors and overlays that impact the image content, contingent on the specific acquisition centre. Existing Deep Segmentation networks struggle to…

Image and Video Processing · Electrical Eng. & Systems 2023-08-31 Valentina Corbetta , Regina Beets-Tan , Wilson Silva

Artificial intelligence models are increasingly scaled to improve predictive accuracy, yet it remains unclear whether scale improves the quality of post-hoc explanations. We investigate this relationship by evaluating 11 computer vision…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Mateusz Cedro , Marcin Chlebus

Geometric reconstruction and SLAM with endoscopic images have advanced significantly in recent years. In most medical fields, monocular endoscopes are employed, and the algorithms used are typically adaptations of those designed for…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Raúl Iranzo , Víctor M. Batlle , Juan D. Tardós , José M. M. Montiel

This paper presents an open and comprehensive framework to systematically evaluate state-of-the-art contributions to self-supervised monocular depth estimation. This includes pretraining, backbone, architectural design choices and loss…

Computer Vision and Pattern Recognition · Computer Science 2022-12-22 Jaime Spencer , Chris Russell , Simon Hadfield , Richard Bowden

Colorectal cancer (CRC) remains one of the leading causes of cancer-related morbidity and mortality worldwide, with gastrointestinal (GI) polyps serving as critical precursors according to the World Health Organization (WHO). Early and…

Computer Vision and Pattern Recognition · Computer Science 2026-01-15 Akwasi Asare , Thanh-Huy Nguyen , Ulas Bagci

As processing power has become more available, more human-like artificial intelligences are created to solve image processing tasks that we are inherently good at. As such we propose a model that estimates depth from a monocular image. Our…

Computer Vision and Pattern Recognition · Computer Science 2019-05-14 Fabian Truetsch , Alfred Schöttl

We propose MaskingDepth, a novel semi-supervised learning framework for monocular depth estimation to mitigate the reliance on large ground-truth depth quantities. MaskingDepth is designed to enforce consistency between the…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Jongbeom Baek , Gyeongnyeon Kim , Seonghoon Park , Honggyu An , Matteo Poggi , Seungryong Kim

Histopathological characterization of colorectal polyps is an important principle for determining the risk of colorectal cancer and future rates of surveillance for patients. This characterization is time-intensive, requires years of…

Computer Vision and Pattern Recognition · Computer Science 2017-04-14 Bruno Korbar , Andrea M. Olofson , Allen P. Miraflor , Katherine M. Nicka , Matthew A. Suriawinata , Lorenzo Torresani , Arief A. Suriawinata , Saeed Hassanpour

Recent advancements of neural networks lead to reliable monocular depth estimation. Monocular depth estimated techniques have the upper hand over traditional depth estimation techniques as it only needs one image during inference. Depth…

Computer Vision and Pattern Recognition · Computer Science 2020-06-01 Alwyn Mathew , Aditya Prakash Patra , Jimson Mathew

Colonoscopy is still the main method of detection and segmentation of colonic polyps, and recent advancements in deep learning networks such as U-Net, ResUNet, Swin-UNet, and PraNet have made outstanding performance in polyp segmentation.…

Image and Video Processing · Electrical Eng. & Systems 2025-08-14 Madan Baduwal

Anomaly detection methods generally target the learning of a normal image distribution (i.e., inliers showing healthy cases) and during testing, samples relatively far from the learned distribution are classified as anomalies (i.e.,…

Computer Vision and Pattern Recognition · Computer Science 2020-06-29 Yu Tian , Gabriel Maicas , Leonardo Zorron Cheng Tao Pu , Rajvinder Singh , Johan W. Verjans , Gustavo Carneiro

Cancer is a disease that occurs as a result of the uncontrolled division and proliferation of cells. Colon cancer is one of the most common types of cancer in the world. Polyps that can be seen in the large intestine can cause cancer if not…

Image and Video Processing · Electrical Eng. & Systems 2022-04-25 Tugberk Erol , Duygu Sarikaya

Scale-aware monocular depth estimation poses a significant challenge in computer-aided endoscopic navigation. However, existing depth estimation methods that do not consider the geometric priors struggle to learn the absolute scale from…

Computer Vision and Pattern Recognition · Computer Science 2024-08-15 Ruofeng Wei , Bin Li , Kai Chen , Yiyao Ma , Yunhui Liu , Qi Dou

In many real-world applications, the relative depth of objects in an image is crucial for scene understanding. Recent approaches mainly tackle the problem of depth prediction in monocular images by treating the problem as a regression task.…

Computer Vision and Pattern Recognition · Computer Science 2021-07-08 Julian Lienen , Eyke Hüllermeier , Ralph Ewerth , Nils Nommensen

Current self-supervised monocular depth estimation methods are mostly based on estimating a rigid-body motion representing camera motion. These methods suffer from the well-known scale ambiguity problem in their predictions. We propose…

Computer Vision and Pattern Recognition · Computer Science 2023-01-06 Sadra Safadoust , Fatma Güney

Colorectal cancer (CRC) is one of the most common types of cancer with a high mortality rate. Colonoscopy is the preferred procedure for CRC screening and has proven to be effective in reducing CRC mortality. Thus, a reliable computer-aided…

Computer Vision and Pattern Recognition · Computer Science 2021-09-15 Kaidong Li , Mohammad I. Fathan , Krushi Patel , Tianxiao Zhang , Cuncong Zhong , Ajay Bansal , Amit Rastogi , Jean S. Wang , Guanghui Wang

We propose a self-supervised monocular depth estimation network tailored for endoscopic scenes, aiming to infer depth within the gastrointestinal tract from monocular images. Existing methods, though accurate, typically assume consistent…

Computer Vision and Pattern Recognition · Computer Science 2025-04-25 Zebo Huang , Yinghui Wang

Colorectal cancer is the third most aggressive cancer worldwide. Polyps, as the main biomarker of the disease, are detected, localized, and characterized through colonoscopy procedures. Nonetheless, during the examination, up to 25% of…

Computer Vision and Pattern Recognition · Computer Science 2024-03-04 Lina Ruiz , Franklin Sierra-Jerez , Jair Ruiz , Fabio Martinez

Monocular surface normal estimators trained on large-scale RGB-normal data often perform poorly in the edge cases of reflective, textureless, and dark surfaces. Polarization encodes surface orientation independently of texture and albedo,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Irene Kim , Sai Tanmay Reddy Chakkera , Alexandros Graikos , Dimitris Samaras , Akshat Dave

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…

Image and Video Processing · Electrical Eng. & Systems 2020-07-06 Deng-Ping Fan , Ge-Peng Ji , Tao Zhou , Geng Chen , Huazhu Fu , Jianbing Shen , Ling Shao