Assistive Device for Currency Recognition and Communication for the Blind

Abstract

Blind individuals encounter difficulties when it comes to independently recognizing and handling currency bills. To address this issue, we propose an assistive device that combines real-time object recognition with communication capabilities. Our system aims to enhance the autonomy of blind users by providing accurate currency bill identification. The device continuously analyzes the video stream from a camera, recognizing currency bills based on visual cues. 

Background

Existing assistive devices for the blind often rely on artificial vision. However, many separate systems can become impractical. Our goal was to create a versatile, portable device capable of recognizing currency bills, a common challenge faced by blind individuals. Unlike other systems that require capturing multiple images for recognition, our system performs continuous recognition on the video stream.

Design and Implementation

Our device utilizes bio-inspired image analysis software for real-time object recognition. Here are the key components:

1. Camera: A portable camera captures the video stream.
2. Image Analysis Software: We employ a bio-inspired algorithm for object recognition.
3. Currency Recognition Module: This module identifies currency bills based on visual features.
4. Communication Interface: The device communicates the recognized currency information to the user.

Currency Recognition

1. Visual Cues: Our system relies solely on visual cues to recognize currency bills.
2. Continuous Recognition: Unlike other methods, our device continuously analyzes the video stream.
3. General Purpose: Our approach is not specific to a particular currency, making it versatile.

Conclusion

Our assistive device bridges the gap for blind individuals by recognizing currency bills and communicating this information in real time. By combining object recognition and communication capabilities, we empower blind users to manage their finances independently. Future work involves refining the system, expanding its functionality, and ensuring affordability for widespread adoption.

Problem Statement:

I had an eye-opening experience in a cab when I noticed a blind woman struggling to pay her fare. She had to ask the conductor to confirm that the note she handed over was indeed a 500 naira bill. Later, when receiving her change, she needed reassurance on the denominations once again.

This encounter made me realize the challenges blind individuals face in distinguishing between different currency notes. Without tactile or audible features on paper money, they often rely on others for assistance, which can be inconvenient and sometimes unreliable.

Solution:

To address this issue, I'm working on a device that can recognize and audibly announce the denomination of various currencies. This innovation aims to empower blind individuals with the confidence to manage their finances more independently and accurately.