Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An Efficient Indoor Navigation Technique To Find Optimal Route For
  Blinds Using QR Codes   Blind navigation is an accessibility application that enables blind to use an
android Smartphone in an easy way for indoor navigation with instructions in
audio form. We have proposed a prototype which is an indoor navigation
application for blinds that uses QR codes. It is developed for android Smart
phones and does not require any additional hardware for navigation. It provides
automatic navigational assistance on pre-defined paths for blind. QR codes are
placed on the floor sections after specific distance that acts as an input for
current location detection and navigation. Whenever a QR code is scanned it
provides the user with the information of the current location and asks the
user to select the destination and then offers optimal and shortest path using
path finding algorithms. During navigation whenever the deviation from the
proposed path is detected it prompts the user and guides back to the right path
by comparing the current path with the generated path. All of the instructions
throughout the application are provided in audio form to the user. The
interface of the application is well built for blinds which makes the smart
phones user-friendly and useable for blind people. The user interacts with the
application through a specific set of user-friendly gestures for specific
inputs and operations. At the end, we have performed comparison between
different state of art approaches and concluded that our approach is more user
friendly, cost effective and produced more accurate results.

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The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
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The categories of this paper are: gr-qc
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The categories of this paper are: stat
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The categories of this paper are: hep-th
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The categories of this paper are: hep-ex
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The categories of this paper are: supr-con
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The categories of this paper are: nlin