Real-time geotagging

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Real-time geotagging refers to the automatic technique of acquiring media (such as photos, audio or video), associating a specific location with the media, transferring the media to an

aGPS, and wireless data transfer into one device,[1] thus directly producing a geotagged photograph
. Real-time geotagging is sometimes referred to as "mobile geotagging" or "autogeotagging", but this does not imply the real-time publishing step.

Location Acquisition

Geotagging is gaining popularity with photographers to produce geotagged photographs. A few cameras have built-in

GPS receivers to determine location. Location may be inserted immediately into the picture file by tethering with Bluetooth
or suitable wired connection, which are about as rare in cameras as the built-in autogeotagging feature.

aGPS
) technology is usual in cellular phones.

One alternative to GPS is

local positioning systems. Many camera phones
use all these methods: GPS, aGPS, cell tower signals, and WiFi triangulation.

Locations may be added later using a user's computer or a

tracks
and/or MAC addresses, and cannot be used for real-time geotagging.

With the rapid rise of mobile

integrate GPS receivers and cameras, and relative market stagnation of separate devices,[4] these phones are the most numerous instruments for autogeotagging. Those that don't include this ability in their stock software may acquire it by installing appropriate mobile apps
.

Applications

Wireless data transfer allows real-time mapping of media. Transferring images from cell phones to social networking sites is gaining popularity. Applications for real-time mapping include travel, real estate,

geofencing
.

Geotagging allows presenting the geotagged media via a map. Some examples of location-based social networking sites include MapWith.Us, Flickr, Panoramio and Picasa. However, presenting the data using online maps is a challenging problem, especially when combined with collaborative mapping. One example of such a project using real-time geotagging is MapWith.Us.

Privacy Concerns

Since real-time geotagging provides the real-time location of the person operating the device, it is possible to track that person using the data that they publish. Where this is a problem, the geotagger can choose to restrict online access to their data by means of access privileges.

References

  1. cnet
    .
  2. ^ "Google Earth surpasses 500 million". Google Earth Blog. 2009-08-04.
  3. ^ Smartphone shipments Mobithinking.com
  4. ^ Kevin J. O'Brien, New York Times, 2010 Nov 15 Smartphone Sales Taking Toll on G.P.S. Devices
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