Indoor Location Systems

WiFi based

  1. WiFiSLAM aquired by Apple: Apple acquires Wifislam
  2. Navizon
  3. Redpin (Open Source)
  4. infsoft

WiFi & Bluetooth based

  1. MagicMaps

Ultrasound based

  1. Shopkick

Ultrasound + RF based

  1. Cricket

Magnetic anomaly-based

  1. Indoor Atlas

RFID (active) based

  1. OpenBeacon (Open Source)

Blog entry on passive solutions. The industry term for this is RTLS (Real time location system): Passive RFID providing RTLS Real-or-hype

Paper on “Decimeter-Level Localization with a Single WiFi Access Point

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What Makes Paris Look Like Paris?

Researchers from France and the USA have developed an algorithm that analyzes Google-Street-View images looking for visual elements, e.g. windows, balconies, and street signs, that are most distinctive for a certain geo-spatial area.

In their SIGGRAPH paper they describe how this information can be used to develop an architectural footprint of a city or city area and compare Paris, Barcelona, Prague and London

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Augmented Reality: Mobile as an all-devouring third wave of context

Bruce Sterling published the foreword of his new book “The Insider’s Guide to Mobile” by Raimo van der Klein, CEO of Layar the company developing the augmented reality browser also named layar.
He speaks about 3 years of development of the AR browser.

from the foreword:

Basically now we have entered the third wave of mobile. First was Communication, second was Content and now the third is Context. We are barely scratching the surface of this third wave. Context is restructuring mobile services so, that it utilises contextual datapoints to optimize the service experience for the users. Contextual datapoints are for example location, proximity to objects, proximity to friends, the user’s viewing angle, actual time, your direct surroundings and much more.

[via communities-dominate.blogs.com]

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Augmented Reality Web Browser

Blair MacIntyre, associate professor in Georgia Tech’s College of Computing and member of Tech’s GVU Center, discusses the release of Argon, the first mobile augmented reality browser based on open Web standards.

MacIntyre and his Augmented Environments Lab in the School of Interactive Computing developed Argon to move the Web into the world. It does so by taking video from the phone’s camera and rendering graphical content on top of the video to provide users with an experience that merges space with cyberspace.

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Precise indoor smartphone tracking

Shopkick uses the build in microphone of a smartphone, currently iOS or Android based, to triangulate its position via a network of ultrasonic beacons. Other then satellite based systems like GPS this allows a more precise location tracking especially in indoor situations where GPS is not or poorly available. Shopkick did a first installation in a Best Buy in San Francisco as part of a POS application.

See also this article here: technologie review article …

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