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Simultaneous mapping and localization (SLAM) in an real indoor environment is still a challenging task. Traditional SLAM approaches rely heavily on low-level geometric constraints like corners or lines, which may lead to tracking failure in…

Robotics · Computer Science 2019-10-01 Xueyang Kang , Shunying Yuan

A key requirement in robotics is the ability to simultaneously self-localize and map a previously unknown environment, relying primarily on onboard sensing and computation. Achieving fully onboard accurate simultaneous localization and…

Robotics · Computer Science 2024-08-28 Vlad Niculescu , Tommaso Polonelli , Michele Magno , Luca Benini

In this work, we consider convex optimization problems with smooth objective function and nonsmooth functional constraints. We propose a new stochastic gradient algorithm, called Stochastic Halfspace Approximation Method (SHAM), to solve…

Optimization and Control · Mathematics 2024-12-04 Nitesh Kumar Singh , Ion Necoara

Vision foundation models have achieved remarkable progress across various image analysis tasks. In the image segmentation task, foundation models like the Segment Anything Model (SAM) enable generalizable zero-shot segmentation through…

Computer Vision and Pattern Recognition · Computer Science 2025-01-17 Xingxin He , Yifan Hu , Zhaoye Zhou , Mohamed Jarraya , Fang Liu

Spacecraft pose estimation is a key task to enable space missions in which two spacecrafts must navigate around each other. Current state-of-the-art algorithms for pose estimation employ data-driven techniques. However, there is an absence…

Computer Vision and Pattern Recognition · Computer Science 2022-12-29 Juan Ignacio Bravo Pérez-Villar , Álvaro García-Martín , Jesús Bescós

Neural Architecture Search (NAS) is a powerful approach of automating the design of efficient neural architectures. In contrast to traditional NAS methods, recently proposed one-shot NAS methods prove to be more efficient in performing NAS.…

Computer Vision and Pattern Recognition · Computer Science 2025-01-16 Waqwoya Abebe , Sadegh Jafari , Sixing Yu , Akash Dutta , Jan Strube , Nathan R. Tallent , Luanzheng Guo , Pablo Munoz , Ali Jannesari

In complex environments, low-cost and robust localization is a challenging problem. For example, in a GPSdenied environment, LiDAR can provide accurate position information, but the cost is high. In general, visual SLAM based localization…

Computer Vision and Pattern Recognition · Computer Science 2019-12-12 Dong Han , Zuhao Zou , Lujia Wang , Cheng-Zhong Xu

One practical approach to infer 3D scene structure from a single image is to retrieve a closely matching 3D model from a database and align it with the object in the image. Existing methods rely on supervised training with images and pose…

Computer Vision and Pattern Recognition · Computer Science 2025-07-08 Pattaramanee Arsomngern , Sasikarn Khwanmuang , Matthias Nießner , Supasorn Suwajanakorn

Dynamic imaging addresses the recovery of a time-varying 2D or 3D object at each time instant using its undersampled measurements. In particular, in the case of dynamic tomography, only a single projection at a single view angle may be…

Image and Video Processing · Electrical Eng. & Systems 2024-05-09 Berk Iskender , Marc L. Klasky , Yoram Bresler

Video object segmentation methods like SAM2 achieve strong performance through memory-based architectures but struggle under large viewpoint changes due to reliance on appearance features. Traditional 3D instance segmentation methods…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Yang-Che Sun , Cheng Sun , Chin-Yang Lin , Fu-En Yang , Min-Hung Chen , Yen-Yu Lin , Yu-Lun Liu

The recently proposed Segment Anything Model (SAM) is a general tool for image segmentation, but it requires additional adaptation and careful fine-tuning for medical image segmentation, especially for small, irregularly-shaped, and…

Computer Vision and Pattern Recognition · Computer Science 2024-07-26 Yaxi Chen , Aleksandra Ivanova , Shaheer U. Saeed , Rikin Hargunani , Jie Huang , Chaozong Liu , Yipeng Hu

Monocular simultaneous localization and mapping (SLAM) algorithms estimate drone poses and build a 3D map using a single camera. Current algorithms include sparse methods that lack detailed geometry, while learning-driven approaches produce…

Robotics · Computer Science 2025-11-25 Jeryes Danial , Yosi Ben Asher , Itzik Klein

In high-stakes domains, small task-specific vision models are crucial due to their low computational requirements and the availability of numerous methods to explain their results. However, these explanations often reveal that the models do…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Alexander Koebler , Lukas Kuhn , Ingo Thon , Florian Buettner

Image segmentation is an inherently ill-posed problem and thus requires regularization in order to limit the search space to reasonable solutions. A majority of segmentation methods integrates these regularization terms in one way or the…

Numerical Analysis · Mathematics 2018-10-31 Uri Nahum , Philippe C. Cattin

Mutual localization serves as the foundation for collaborative perception and task assignment in multi-robot systems. Effectively utilizing limited onboard sensors for mutual localization between marker-less robots is a worthwhile goal.…

Robotics · Computer Science 2024-05-21 Gaoming Chen , Kun Song , Xiang Xu , Wenhang Liu , Zhenhua Xiong

The primary challenge in video super-resolution (VSR) is to handle large motions in the input frames, which makes it difficult to accurately aggregate information from multiple frames. Existing works either adopt deformable convolutions or…

Computer Vision and Pattern Recognition · Computer Science 2023-05-15 Zhihe Lu , Zeyu Xiao , Jiawang Bai , Zhiwei Xiong , Xinchao Wang

Attention mechanisms and non-local mean operations in general are key ingredients in many state-of-the-art deep learning techniques. In particular, the Transformer model based on multi-head self-attention has recently achieved great success…

Machine Learning · Computer Science 2019-05-27 Dan A. Calian , Peter Roelants , Jacques Cali , Ben Carr , Krishna Dubba , John E. Reid , Dell Zhang

Current pandemic has caused the medical system to operate under high load. To relieve it, robots with high autonomy can be used to effectively execute contactless operations in hospitals and reduce cross-infection between medical staff and…

Computer Vision and Pattern Recognition · Computer Science 2021-12-21 Kaiqi Chen , Jialing Liu , Qinying Chen , Zhenhua Wang , Jianhua Zhang

This paper presents an efficient algorithm for the least-squares problem using the point-to-plane cost, which aims to jointly optimize depth sensor poses and plane parameters for 3D reconstruction. We call this least-squares problem…

Computer Vision and Pattern Recognition · Computer Science 2020-08-18 Lipu Zhou , Daniel Koppel , Hui Ju , Frank Steinbruecker , Michael Kaess

Image-level weakly supervised semantic segmentation is a challenging problem that has been deeply studied in recent years. Most of advanced solutions exploit class activation map (CAM). However, CAMs can hardly serve as the object mask due…

Computer Vision and Pattern Recognition · Computer Science 2020-04-10 Yude Wang , Jie Zhang , Meina Kan , Shiguang Shan , Xilin Chen