Object Localization: Overview Objects (whether humans or
otherwise) need to be localized for a number of reasons such as
security, safety, work pattern analysis, and supply chain
management. Out-door localization is relatively easy using
triangulation techniques as in GPS, etc. In-doors localization is
more challenging; which is what we undertook to do.
Slide 3
In-door localization: Overview (1) In the past decade, several
companies have come up with solutions to localize objects indoors
using one - or a combination - of the following technologies:
Infrared (IR), Wi-Fi, RFID, and Ultrasound. Solutions usually
involve tagging (i.e. tags are attached to objects/subjects). Less
known is tag-less localization (whereby no tags are affixed to the
subject to be localized).
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In-door localization: Overview (2) Tagging allows for the
identification of the subjects identity (in addition to his/her
location). Tag-less identification allows for the identification of
only the location of the subject/object without details about
his/her identity. Each type has its applications. For instance,
tag- less identification can be important to detect unauthorized
entry into a certain room.
Slide 5
Our Innovation (1) We have managed to come up with two new
methods for locating objects in-doors; one tagged and one tag-less.
In the tagged system, we have minimized the number of readers (the
expensive component in the system) to just 2 for an area of around
100 squared meters with an accuracy of +/- 30 cm. We have come up
with a tag-less solution which is totally new based on algorithms
used in medical image processing.
Slide 6
Our Innovation (2) Our tagged localization system uses passive
tags which are very cheap. By minimizing the number of readers, our
solution is really affordable. Our tag-less system uses active tags
affixed at the walls/ceiling of the room. It uses also 2 readers,
but is more expensive.
Slide 7
Why is our innovation promising? Because we now have
independent means for localizing objects, which can be coupled with
existing methods to give formidable accuracy. Because our tagged
solution is inexpensive. Because our tag-less solution, although
relatively more expensive, can be coupled to a camera to follow
subjects entry into a secure place. In ordinary surveillance
systems, the camera does not follow the subject, so there must be
several cameras which is quite expensive.