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In this paper, we present an approach to enhance and improve the current normal map rendering technique. Our algorithm is based on semi-discrete Optimal Mass Transportation (OMT) theory and has a solid theoretical base. The key difference…

Graphics · Computer Science 2020-04-22 Hui Zhao , Kehua Su , Ming Ma , Na Lei , Li Cui , Xianfeng Gu

Autonomous navigation based on precise localization has been widely developed in both academic research and practical applications. The high demand for localization accuracy has been essential for safe robot planing and navigation while it…

Robotics · Computer Science 2019-06-07 Huifang Ma , Yue Wang , Li Tang , Sarath Kodagoda , Rong Xiong

Land-cover mapping is one of the vital applications in Earth observation, aiming at classifying each pixel's land-cover type of remote-sensing images. As natural and human activities change the landscape, the land-cover map needs to be…

Computer Vision and Pattern Recognition · Computer Science 2024-04-22 Zhuohong Li , Fangxiao Lu , Jiaqi Zou , Lei Hu , Hongyan Zhang

The ground-to-satellite image matching/retrieval was initially proposed for city-scale ground camera localization. This work addresses the problem of improving camera pose accuracy by ground-to-satellite image matching after a coarse…

Computer Vision and Pattern Recognition · Computer Science 2024-09-11 Yujiao Shi , Hongdong Li , Akhil Perincherry , Ankit Vora

A robot understands its world through the raw information it senses from its surroundings. This raw information is not suitable as a shared representation between the robot and its user. A semantic map, containing high-level information…

Robotics · Computer Science 2020-10-20 Manjunath Narayana , Andreas Kolling , Lucio Nardelli , Phil Fong

A key capability for autonomous underground mining vehicles is real-time accurate localisation. While significant progress has been made, currently deployed systems have several limitations ranging from dependence on costly additional…

Robotics · Computer Science 2019-07-01 Fan Zeng , Adam Jacobson , David Smith , Nigel Boswell , Thierry Peynot , Michael Milford

Reliable and accurate localization and mapping are key components of most autonomous systems. Besides geometric information about the mapped environment, the semantics plays an important role to enable intelligent navigation behaviors. In…

Localization is one of the most crucial tasks for Unmanned Aerial Vehicle systems (UAVs) directly impacting overall performance, which can be achieved with various sensors and applied to numerous tasks related to search and rescue…

Robotics · Computer Science 2024-11-05 Thanh Nguyen Canh , Huy-Hoang Ngo , Xiem HoangVan , Nak Young Chong

Despite the remarkable advances in image matching and pose estimation, image-based localization of a camera in a temporally-varying outdoor environment is still a challenging problem due to huge appearance disparity between query and…

Computer Vision and Pattern Recognition · Computer Science 2023-04-18 Shen Yan , Yu Liu , Long Wang , Zehong Shen , Zhen Peng , Haomin Liu , Maojun Zhang , Guofeng Zhang , Xiaowei Zhou

Accurate and robust visual localization under a wide range of viewing condition variations including season and illumination changes, as well as weather and day-night variations, is the key component for many computer vision and robotics…

Computer Vision and Pattern Recognition · Computer Science 2019-05-20 Tianxin Shi , Shuhan Shen , Xiang Gao , Lingjie Zhu

Along with the rapid growth of autonomous vehicles (AVs), more and more demands are required for environment perception technology. Among others, HD mapping has become one of the more prominent roles in helping the vehicle realize essential…

Robotics · Computer Science 2024-09-17 Benny Wijaya , Kun Jiang , Mengmeng Yang , Tuopu Wen , Yunlong Wang , Xuewei Tang , Zheng Fu , Taohua Zhou , Diange Yang

The environment of most real-world scenarios such as malls and supermarkets changes at all times. A pre-built map that does not account for these changes becomes out-of-date easily. Therefore, it is necessary to have an up-to-date model of…

Robotics · Computer Science 2021-11-23 Min Zhao , Xin Guo , Le Song , Baoxing Qin , Xuesong Shi , Gim Hee Lee , Guanghui Sun

Parking spaces are costly to build, parking payments are difficult to enforce, and drivers waste an excessive amount of time searching for empty lots. Accurate quantification would inform developers and municipalities in space allocation…

Computer Vision and Pattern Recognition · Computer Science 2019-10-17 Bill Yang Cai , Ricardo Alvarez , Michelle Sit , Fábio Duarte , Carlo Ratti

Navigation and exploration within unknown environments are typical examples in which simultaneous localization and mapping (SLAM) algorithms are applied. When mobile agents deploy only range sensors without bearing information, the agents…

Systems and Control · Electrical Eng. & Systems 2023-07-10 Matteo Marcantoni , Bayu Jayawardhana , Kerstin Bunte

World-wide detailed 2D maps require enormous collective efforts. OpenStreetMap is the result of 11 million registered users manually annotating the GPS location of over 1.75 billion entries, including distinctive landmarks and common urban…

Computer Vision and Pattern Recognition · Computer Science 2024-11-25 Matteo Toso , Stefano Fiorini , Stuart James , Alessio Del Bue

Simultaneous Localization and Mapping (SLAM) plays a crucial role in enabling autonomous vehicles to navigate previously unknown environments. Semantic SLAM mostly extends visual SLAM, leveraging the higher density information available to…

Robotics · Computer Science 2026-03-20 Aduen Benjumea , Andrew Bradley , Alexander Rast , Matthias Rolf

Adapting Vision-Language Models (VLMs) to new domains with few labeled samples remains a significant challenge due to severe overfitting and computational constraints. State-of-the-art solutions, such as low-rank reparameterization,…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Nairouz Mrabah , Nicolas Richet , Ismail Ben Ayed , Éric Granger

Maintaining an up-to-date map to reflect recent changes in the scene is very important, particularly in situations involving repeated traversals by a robot operating in an environment over an extended period. Undetected changes may cause a…

Self-Organizing Maps (SOM) are a classical method for unsupervised learning, vector quantization, and topographic mapping of high-dimensional data. However, existing SOM formulations often involve a trade-off between computational…

Machine Learning · Computer Science 2026-04-16 Seiki Ubukata , Akira Notsu , Katsuhiro Honda

Onboard terrain sensing and mapping for safe planetary landings often suffer from missed hazardous features, e.g., small rocks, due to the large observational range and the limited resolution of the obtained terrain data. To this end, this…

Image and Video Processing · Electrical Eng. & Systems 2025-07-09 Kento Tomita , Koki Ho