Geotagging is a digital process that involves adding geographical information to various types of media, such as photos or videos, in the form of métadonnées[4]. This location-specific data can include details like latitude and longitude coordinates, or even place names. The use of geotagging is widespread, prevalent in médias sociaux[1] des plates-formes telles que Facebook[2] et Instagram[3], where it allows users to share their location and find nearby friends. In the realm of multimedia, it is used to enhance the information associated with photos. Techniques for geotagging vary based on the type of data, ranging from storing pixel coordinates to employing metadata. However, this process also poses certain risks and concerns, primarily related to vie privée[5] et security[6]. Despite these risks, geotagging plays a significant role in improving search result accuracy, enabling location-based services, and supporting geographically organized data among other applications.
Géolocalisationou GeoTagging, is the process of adding geographical identification métadonnées to various media such as a geotagged photograph or video, websites, SMS messages, QR Codes or RSS feeds and is a form of geospatial metadata. This data usually consists of latitude and longitude coordinates, though they can also include altitude, bearing, distance, accuracy data, and place names, and perhaps a time stamp.
Geotagging can help users find a wide variety of location-specific information from a device. For instance, someone can find images taken near a given location by entering latitude and longitude coordinates into a suitable image moteur de recherche. Geotagging-enabled information services can also potentially be used to find location-based news, websites, or other resources. Geotagging can tell users the location of the content of a given picture or other media or the point of view, and conversely on some media platforms show media relevant to a given location.
The geographical location data used in geotagging can, in almost every case, be derived from the global positioning system, and based on a latitude/longitude-coordinate system that presents each location on the earth from 180° west through 180° east along the Equator and 90° north through 90° south along the prime meridian.[citation nécessaire]
The related term geocoding refers to the process of taking non-coordinate-based geographical identifiers, such as a street address, and finding associated geographic coordinates (or vice versa for reverse geocoding). Such techniques can be used together with geotagging to provide alternative search techniques.[citation nécessaire]
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