EXCHANGE GUARD

Cash currency detection system

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/ task

There are fraud incidents at the cash desk, when a teller does not perform currency exchange operations through the bank’s cash desk, but exchanges clients' own funds and makes money on the difference in exchange rates.

Such an incident can be detected only by reviewing hundreds of hours of camera recordings; in addition to financial losses, this is a reputational risk, as such an employee can also trade with clients' personal data.

/ Solution

Cash currency detection system to prevent fraudulent currency substitution operations. The developed system can detect currency by video stream and reconcile these events with the bank’s automated transaction accounting system, controlling fraudulent activities. In case of discrepancy, such transactions are highlighted to the security service for further proceedings.

Up to 90% time saving for the bank security service when searching for fraudulent operations.

/ technologies

Technological complexity:

• in practice, banknotes in the tray often overlap with other items, which hindered detection and it was necessary to create a large synthetic dataset and train the neural network from scratch to achieve the necessary accuracy;

• development of "cheap" in terms of machine time algorithms to avoid analyzing the neural network most of the frames to reduce the cost of detection, which was critical for the customer;

• design of duplicate hardware and software infrastructure for data analysis in bank branches to preliminarily reduce the cost of detection, which was critical for the customer;

• design of a new hardware and software infrastructure for data analysis in the bank’s branches.