arXiv subjects

Chung To Kong

Publications and source records attributed to Chung To Kong.

2 recordsLinked to original sources

arXiv2026

The possibility of solving a 3x3 Rubik's Cube under 2 seconds - Optimizing block building

Block building is an essential skill in speedcubing competitions. However, there is currently no systematic method to understand or analyze block-building techniques. Rewatching gameplay reveals only the outcome, not the underlying mechanism. This paper presents a systematic approach, the "AK-cubie method" (or "cubie method" for short), for constructing near-optimal block-building move sequences within a short computation time. Speedcubers can use the accompanying software to train their look-ahead and block-building skills. We hope this work will contribute to breaking the 2-second world record in the near future.

cs.GT↗

arXiv2023

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.

cs.CV↗