While some of these websites are generic, and will collect and categorize POI for any interest, others are more specialized in a particular category (such as speed cameras) or GPS device (e.g. However, websites exist that specialize in the collection, verification, management and distribution of POI which end-users can load onto their devices to replace or supplement the existing POI. In medical fields such as histology/ pathology/ histopathology, points of interest are selected from the general background in a field of view for example, among hundreds of normal cells, the pathologist may find 3 or 4 neoplastic cells that stand out from the others upon staining.Ĭustom speed camera POI overlaid on a BMW navigation mapĭigital maps for modern GPS devices typically include a basic selection of POI for the map area. Ī region of interest (ROI) and a volume of interest (VOI) are similar in concept, denoting a region or a volume (which may contain various individual POIs). GPS applications typically use icons to represent different categories of POI on a map graphically. A name or description for the POI is usually included, and other information such as altitude or a telephone number may also be attached. In this context the synonym waypoint is common.Ī GPS point of interest specifies, at minimum, the latitude and longitude of the POI, assuming a certain map datum. The term is widely used in cartography, especially in electronic variants including GIS, and GPS navigation software. POI to special services in a ski resort are available only in winter). Users of a mobile device can be provided with geolocation and time aware POI service that recommends geolocations nearby and with a temporal relevance (e.g. Most consumers use the term when referring to hotels, campsites, fuel stations or any other categories used in modern automotive navigation systems. An example is a point on the Earth representing the location of the Eiffel Tower, or a point on Mars representing the location of its highest mountain, Olympus Mons. A point of interest ( POI) is a specific point location that someone may find useful or interesting.
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