Project Description

The proposed assistive device DigiDrishti is designed to address two primary challenges faced by visually impaired individuals which are recognizing currency denominations and navigating public transportation systems. The system integrates two core components which are as follows.

Currency Identifier:

This module uses an onboard camera to capture images of currency notes. The system then processes the images captured to recognize the denomination and it then gives real-time audio feedback to the visually impaired user. This module is helpful in detecting both new and old currency notes, and its offline functionality is useful for a seamless operation in any environment. It also includes an optional counterfeit and fake note detection mechanism.

Transport Information System

This module uses the concept of scanning QR codes that are intended to be placed at public transport stops or at the entry points of vehicles. Once the QR code is decoded, the system outputs route, schedule, and stop details using an audio interface and feedback. This provides with quick QR scanning for real-time public transport updates and is designed for deployment in buses, trains, or other transportation hubs.

Together, these components enable visually impaired individuals to independently manage their daily financial and transportation needs. Figure 3 shows a conceptual block diagram that illustrates the system architecture and interaction between hardware and software components.