The possibility of making 138,000 from shredded banknote pieces using computer vision

Every country must dispose of old banknotes. At the Hong Kong Monetary Authority visitor center, visitors can buy a paperweight souvenir full of shredded banknotes. Even though the shredded banknotes are small, by using computer vision, it is possible to reconstruct the whole banknote like a jigsaw puzzle. Each paperweight souvenir costs 100 HKD, and it is claimed to contain shredded banknotes equivalent to 138 complete 1000 HKD banknotes. In theory, 138,000 HKD can be recovered by using computer vision. This paper discusses the technique of collecting shredded banknote pieces and applying a computer vision program.