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Related papers: EndoMetric: Near-Light Monocular Metric Scale Esti…

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Visual SLAM inside the human body will open the way to computer-assisted navigation in endoscopy. However, due to space limitations, medical endoscopes only provide monocular images, leading to systems lacking true scale. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2022-04-21 Victor M. Batlle , J. M. M. Montiel , Juan D. Tardos

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

3D reconstruction of endoscopic surgery scenes plays a vital role in enhancing scene perception, enabling AR visualization, and supporting context-aware decision-making in image-guided surgery. A critical yet challenging step in this…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Changhao Zhang , Matthew J. Clarkson , Mobarak I. Hoque

Estimating precise metric depth and scene reconstruction from monocular endoscopy is a fundamental task for surgical navigation in robotic surgery. However, traditional stereo matching adopts binocular images to perceive the depth…

Robotics · Computer Science 2022-11-29 Ruofeng Wei , Bin Li , Hangjie Mo , Fangxun Zhong , Yonghao Long , Qi Dou , Yun-Hui Liu , Dong Sun

We aim to track the endoscope location inside the surgical scene and provide 3D reconstruction, in real-time, from the sole input of the image sequence captured by the monocular endoscope. This information offers new possibilities for…

Computer Vision and Pattern Recognition · Computer Science 2016-08-30 Nader Mahmoud , Iñigo Cirauqui , Alexandre Hostettler , Christophe Doignon , Luc Soler , Jacques Marescaux , J. M. M. Montiel

Self-supervised monocular depth estimation is a significant task for low-cost and efficient 3D scene perception and measurement in endoscopy. However, the variety of illumination conditions and scene features is still the primary challenges…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Liangjing Shao , Chenkang Du , Benshuang Chen , Xueli Liu , Xinrong Chen

Monocular depth estimation in endoscopy videos can enable assistive and robotic surgery to obtain better coverage of the organ and detection of various health issues. Despite promising progress on mainstream, natural image depth estimation,…

Computer Vision and Pattern Recognition · Computer Science 2024-08-22 Akshay Paruchuri , Samuel Ehrenstein , Shuxian Wang , Inbar Fried , Stephen M. Pizer , Marc Niethammer , Roni Sengupta

Endoscopy is the most widely used medical technique for cancer and polyp detection inside hollow organs. However, images acquired by an endoscope are frequently affected by illumination artefacts due to the enlightenment source orientation.…

Image and Video Processing · Electrical Eng. & Systems 2022-07-07 Axel Garcia-Vega , Ricardo Espinosa , Gilberto Ochoa-Ruiz , Thomas Bazin , Luis Eduardo Falcon-Morales , Dominique Lamarque , Christian Daul

Monocular relative and metric depth estimation has seen a tremendous boost in the last few years due to the sharp advancements in foundation models and in particular transformer based networks. As we start to see applications to the domain…

Computer Vision and Pattern Recognition · Computer Science 2025-09-24 Nicolas Toussaint , Emanuele Colleoni , Ricardo Sanchez-Matilla , Joshua Sutcliffe , Vanessa Thompson , Muhammad Asad , Imanol Luengo , Danail Stoyanov

The rise of chronic diseases related to diet, such as obesity and diabetes, emphasizes the need for accurate monitoring of food intake. While AI-driven dietary assessment has made strides in recent years, the ill-posed nature of recovering…

Computer Vision and Pattern Recognition · Computer Science 2026-01-29 Gautham Vinod , Bruce Coburn , Siddeshwar Raghavan , Jiangpeng He , Fengqing Zhu

Despite significant progress made in the past few years, challenges remain for depth estimation using a single monocular image. First, it is nontrivial to train a metric-depth prediction model that can generalize well to diverse scenes…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Wei Yin , Jianming Zhang , Oliver Wang , Simon Niklaus , Simon Chen , Yifan Liu , Chunhua Shen

This paper addresses the problem of scale estimation in monocular SLAM by estimating absolute distances between camera centers of consecutive image frames. These estimates would improve the overall performance of classical (not deep) SLAM…

Computer Vision and Pattern Recognition · Computer Science 2019-09-04 Danila Rukhovich , Daniel Mouritzen , Ralf Kaestner , Martin Rufli , Alexander Velizhev

Depth estimation is a cornerstone of 3D reconstruction and plays a vital role in minimally invasive endoscopic surgeries. However, most current depth estimation networks rely on traditional convolutional neural networks, which are limited…

Computer Vision and Pattern Recognition · Computer Science 2025-07-16 Bojian Li , Bo Liu , Xinning Yao , Jinghua Yue , Fugen Zhou

The scale ambiguity problem is inherently unsolvable to monocular SLAM without the metric baseline between moving cameras. In this paper, we present a novel scale estimation approach based on an object-level SLAM system. To obtain the…

Robotics · Computer Science 2022-11-03 Shuangfu Song , Junqiao Zhao , Tiantian Feng , Chen Ye , Lu Xiong

Depth estimation is a foundational component for 3D reconstruction in minimally invasive endoscopic surgeries. However, existing monocular depth estimation techniques often exhibit limited performance to the varying illumination and complex…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Xinning Yao , Bo Liu , Bojian Li , Jingjing Wang , Jinghua Yue , Fugen Zhou

Medical endoscopy remains a challenging application for simultaneous localization and mapping (SLAM) due to the sparsity of image features and size constraints that prevent direct depth-sensing. We present a SLAM approach that incorporates…

Image and Video Processing · Electrical Eng. & Systems 2019-07-02 Richard J. Chen , Taylor L. Bobrow , Thomas Athey , Faisal Mahmood , Nicholas J. Durr

Monocular depth estimation is critical for endoscopists to perform spatial perception and 3D navigation of surgical sites. However, most of the existing methods ignore the important geometric structural consistency, which inevitably leads…

Computer Vision and Pattern Recognition · Computer Science 2023-04-21 Yongming Yang , Shuwei Shao , Tao Yang , Peng Wang , Zhuo Yang , Chengdong Wu , Hao Liu

Monocular SLAM in deformable scenes will open the way to multiple medical applications like computer-assisted navigation in endoscopy, automatic drug delivery or autonomous robotic surgery. In this paper we propose a novel method to…

Computer Vision and Pattern Recognition · Computer Science 2022-04-19 Juan J. Gomez Rodriguez , J. M. M Montiel , Juan D. Tardos

In this paper, we proposed a new deep learning based dense monocular SLAM method. Compared to existing methods, the proposed framework constructs a dense 3D model via a sparse to dense mapping using learned surface normals. With single view…

Robotics · Computer Science 2019-03-25 Jiexiong Tang , John Folkesson , Patric Jensfelt

We present Implicit-Scale 3D Reconstruction from Monocular Multi-Food Images, a benchmark dataset designed to advance geometry-based food portion estimation in realistic dining scenarios. Existing dietary assessment methods largely rely on…

Computer Vision and Pattern Recognition · Computer Science 2026-02-16 Yuhao Chen , Gautham Vinod , Siddeshwar Raghavan , Talha Ibn Mahmud , Bruce Coburn , Jinge Ma , Fengqing Zhu , Jiangpeng He
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