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People who are blind perceive the world differently than those who are sighted, which can result in distinct motion characteristics. For instance, when crossing at an intersection, blind individuals may have different patterns of movement,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Hee Jae Kim , Kathakoli Sengupta , Masaki Kuribayashi , Hernisa Kacorri , Eshed Ohn-Bar

While various sensors have been deployed to monitor vehicular flows, sensing pedestrian movement is still nascent. Yet walking is a significant mode of travel in many cities, especially those in Europe, Africa, and Asia. Understanding…

Audio and Speech Processing · Electrical Eng. & Systems 2025-08-11 Chaeyeon Han , Pavan Seshadri , Yiwei Ding , Noah Posner , Bon Woo Koo , Animesh Agrawal , Alexander Lerch , Subhrajit Guhathakurta

This paper presents a novel architecture for point cloud road user detection, which is based on a classical point cloud proposal generator approach, that utilizes simple geometrical rules. New methods are coupled with this technique to…

Robotics · Computer Science 2024-01-04 Alvari Seppänen , Eerik Alamikkotervo , Risto Ojala , Giacomo Dario , Kari Tammi

With deep learning becoming a more prominent approach for automatic classification of three-dimensional point cloud data, a key bottleneck is the amount of high quality training data, especially when compared to that available for…

Computer Vision and Pattern Recognition · Computer Science 2019-07-11 David Griffiths , Jan Boehm

Assistive technology for visually impaired individuals is extremely useful to make them independent of another human being in performing day-to-day chores and instill confidence in them. One of the important aspects of assistive technology…

Computer Vision and Pattern Recognition · Computer Science 2024-06-25 Praveen Nagil , Sumit K. Mandal

A significant number of those killed in traffic accidents annually refers to pedestrians. most of these accidents occur when a pedestrian is going to pass the street. One of the most hazardous areas for pedestrians crossing the street is…

Physics and Society · Physics 2021-01-27 Ali Mansour Khaki , Amin Mohammadnazar

Traffic bottlenecks are a set of road segments that have an unacceptable level of traffic caused by a poor balance between road capacity and traffic volume. A huge volume of trajectory data which captures real-time traffic conditions in…

Databases · Computer Science 2021-07-28 Hui Luo , Zhifeng Bao , Gao Cong , J. Shane Culpepper , Nguyen Lu Dang Khoa

Unsupervised and open-vocabulary 3D object detection has recently gained attention, particularly in autonomous driving, where reducing annotation costs and recognizing unseen objects are critical for both safety and scalability. However,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 In-Jae Lee , Mungyeom Kim , Kwonyoung Ryu , Pierre Musacchio , Jaesik Park

Curb ramps are critical for urban accessibility, but robustly detecting them in images remains an open problem due to the lack of large-scale, high-quality datasets. While prior work has attempted to improve data availability with…

Computer Vision and Pattern Recognition · Computer Science 2025-08-14 John S. O'Meara , Jared Hwang , Zeyu Wang , Michael Saugstad , Jon E. Froehlich

The distribution of urban services reveals critical patterns of human activity and accessibility. Proximity to amenities like restaurants, banks, and hospitals can reduce access barriers, but these services are often unevenly distributed,…

Physics and Society · Physics 2024-10-29 Federica Fanelli , Hygor P. M. Melo , Matteo Bruno , Vittorio Loreto

Understanding design decisions in relation to the future occupants of a building is a crucial part of good design. However, limitations in tools and expertise hinder meaningful human-centric decisions during the design process. In this…

Graphics · Computer Science 2021-05-12 Mathew Schwartz

Reconstructing geometric shapes from point clouds is a common task that is often accomplished by experts manually modeling geometries in CAD-capable software. State-of-the-art workflows based on fully automatic geometry extraction are…

Often overlooked as a component of urban development, accessibility infrastructure is undeniably crucial in daily life. Accessibility ramps are one of the most common types of accessibility infrastructure, and serve to benefit not only…

Human-Computer Interaction · Computer Science 2023-10-13 Antonio Li , Leila Yi , Brandon Yeo Pei Hui

LiDAR sensors provide rich 3D information about their surrounding{s} and are becoming increasingly important for autonomous vehicles tasks such as {localization}, semantic segmentation, object detection, and tracking. {Simulation}…

Robotics · Computer Science 2022-12-27 Jean Pierre Richa , Jean-Emmanuel Deschaud , François Goulette , Nicolas Dalmasso

Navigation is one of the most widely used applications of the Location Based Services (LBS) which have become part of our digitally informed daily lives. Navigation services, however, have generally been designed for drivers rather than…

Human-Computer Interaction · Computer Science 2020-11-10 Anahid Basiri

The dynamics of transportation through towns and cities is strongly affected by the topology of the connections and routes. The current work describes an approach combining complex networks and self-avoiding random walk dynamics in order to…

Computers and Society · Computer Science 2008-02-26 Bruno Augusto Nassif Travençolo , Luciano da Fontoura Costa

The detection of traversable regions on staircases and the physical modeling constitutes pivotal aspects of the mobility of legged robots. This paper presents an onboard framework tailored to the detection of traversable regions and the…

Robotics · Computer Science 2024-05-06 Chun Qing , Rongxiang Zeng , Xuan Wu , Yongliang Shi , Gan Ma

Built environment auditing refers to the systematic documentation and assessment of urban and rural spaces' physical, social, and environmental characteristics, such as walkability, road conditions, and traffic lights. It is used to collect…

Computer Vision and Pattern Recognition · Computer Science 2025-06-02 Huan Ning , Zhenlong Li , Manzhu Yu , Wenpeng Yin

Point clouds are gaining prominence as a method for representing 3D shapes, but their irregular structure poses a challenge for deep learning methods. In this paper we propose CloudWalker, a novel method for learning 3D shapes using random…

Computer Vision and Pattern Recognition · Computer Science 2023-05-18 Adi Mesika , Yizhak Ben-Shabat , Ayellet Tal

Visually impaired persons find it difficult to know about their surroundings while walking on a road. Walking sticks used by them can only give them information about the obstacles in the stick's proximity. Moreover, it is mostly effective…

Computer Vision and Pattern Recognition · Computer Science 2023-10-24 Shwetang Dubey , Alok Ranjan Sahoo , Pavan Chakraborty