Reconstructing shredded paper money
The Hong Kong Monetary Authority visitor center sells souvenir glass containers full of shredded paper money. Each container (costing $100 HKD) is advertised as containing 138 complete $1000 HKD banknotes.
Researcher Chunt T. Kong set out to determine whether he could use "computer vision" to reconstruct the shredded banknotes. If he could, this would mean that for an investment of $100 HKD he would be able to reconstruct notes worth $138,000 HKD.
He determined that, yes, in theory the banknotes could be reconstructed. But he encountered a few problems:
First, the souvenir containers often contained far fewer than 138 notes. Some had as few as 20 notes in them. He found stones hidden in some of the containers. This, he complained, was false advertising. He noted, "it appears that the Hong Kong Monetary Authority has broken the law."
The second problem: "even though the shredded banknote pieces could construct a complete banknote, the serial number may not have come from the same banknote, and there is a high chance that it could not be exchanged for real money."
He didn't address how all the little pieces would be stuck back together. With scotch tape?
But, of course, it was all just a theoretical exercise. Though he says that, having informed the Hong Kong Monetary Authority visitor center of what he did, they're now no longer selling the shredded money.
More info: "The possibility of making $138,000 from shredded banknote pieces using computer vision"
via New Scientist
Researcher Chunt T. Kong set out to determine whether he could use "computer vision" to reconstruct the shredded banknotes. If he could, this would mean that for an investment of $100 HKD he would be able to reconstruct notes worth $138,000 HKD.
He determined that, yes, in theory the banknotes could be reconstructed. But he encountered a few problems:
First, the souvenir containers often contained far fewer than 138 notes. Some had as few as 20 notes in them. He found stones hidden in some of the containers. This, he complained, was false advertising. He noted, "it appears that the Hong Kong Monetary Authority has broken the law."
The second problem: "even though the shredded banknote pieces could construct a complete banknote, the serial number may not have come from the same banknote, and there is a high chance that it could not be exchanged for real money."
He didn't address how all the little pieces would be stuck back together. With scotch tape?
But, of course, it was all just a theoretical exercise. Though he says that, having informed the Hong Kong Monetary Authority visitor center of what he did, they're now no longer selling the shredded money.
More info: "The possibility of making $138,000 from shredded banknote pieces using computer vision"
via New Scientist
Comments
138,000 HKD = about 17,500 USD
Posted by ges on 05/06/24 at 09:06 AM
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Category: Money | AI, Robots and Other Automatons | Computers