Glossary

Search results

Particle Filtering(also: Sequential Monte Carlo, Particle Filter)

Particle filtering is a probabilistic localization technique that estimates a user's position by maintaining a cloud of weighted "particles," each representing a possible location. As new sensor data arrives—from GPS, inertial sensors, or other sources—particles are updated,…

Pedestrian Navigation(also: Pedestrian Wayfinding, On-Foot Navigation)

Pedestrian navigation refers to wayfinding and route-following on foot in outdoor environments, including sidewalks, crosswalks, public transit access points, and shared streets. For blind and low vision users, people with cognitive disabilities, and wheelchair users, the…

Point of Interest(also: POI)

A point of interest (POI) is a specific location or feature in a physical environment that is relevant to a user's navigation or understanding of their surroundings. In accessible wayfinding systems for blind and low-vision users, POIs include landmarks, obstacles, entrances,…

Points of interest(also: POI, Landmarks)

Specific locations in the environment that are useful or relevant to a user, such as shops, restaurants, transit stops, public buildings, and other named places. In accessible navigation for people with visual impairments, points of interest serve dual roles: they provide…

Pre-journey Learning(also: Pre-visit Spatial Learning, Virtual Pre-exploration)

The practice of learning about an environment's spatial layout before physically visiting it, typically through tactile maps, verbal descriptions, or virtual exploration tools. For people who are blind or have low vision, pre-journey learning supports the development of a…

5 results.