Mobility Assistant For Visually Impaired

MAVI is an ambitious project aimed at enabling mobility for visually impaired individuals, specially in India.
A major challenge in this regard is the wide range of complexities that arise in the Indian Scenario due to non-standard practices.

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After grand success of SmartCane,we identified more serious problems which could be solved using the current technologies. The three major problems we want to tackle with MAVI are:

  • Safety
  • The MAVI device intends to provide real time safety against stray animals, potholes or obstructions in the walkway which could be potentially missed/dangerous for the cane.

  • Social Inclusion
  • Visually impaired individuals are able to recognize their friends with Face Recognition technology.

  • Navigation
  • While we're targeting signboard reading currently, there is a possibility to including SLAM technology for future versions

    A mix of computer vision, web based and cloud based techniques are being used in order to achieve the same. The idea is to have a system which could work both offline and online since the network conditions aren't very reliable for a huge majority.

    Block diagram for MAVI shows different sensors as input and different output modalities.
    Block Diagram for different components of MAVI
    A recent prototype fabricated for MAVI.
    3D model of the current MAVI prototype
    MAVI device mounted on a user with a chest strap.
    MAVI device mounted on user with a chest strap
    MAVI device mounted on a cane.
    MAVI Device mounted on the SmartCane

    Computer Vision Components

    Texture Classification

    Texture Classification

    Texture Classification is used to guide the visually impaired about oncoming potholes or sidewalks which can be used.

    Signboard Detection

    SignBoard Detection

    Signboards make life simpler for all of us. Being able to process signboards while walking is a critical requirement for independent mobility.

    Face Detection

    Face Detection

    The delight of meeting a friend on the way is often missed by a visually impaired person. Face Detection/Recognition enables social inclusion for the visually impaired.

    Animal Detection

    Animal Detection

    When using the cane to guide oneself, it is important to be aware of any animals in the way. It is a scenario very common in the Indian environment.


    Please feel free to share your precious feedback/suggestions with us. We'd also like to hear about similar work you're working on.

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