Calculation of Mahjong Score using AI

In recent years, declining birth rates and aging populations had become more serious in developed countries such as Europe, the United States, and Asian countries, including Japan. Therefore, in this research, we focused on mahjong, which was effective in preventing dementia. However, it was difficult for beginners and even intermediate players to proceed with the game instantly because mahjong has complicated yaku (hand), and the calculation of scores using them is even more complicated. Therefore, we were developing a mahjong progression support system using computer vision aiming at helping players with dementia who have difficulty in calculating mahjong scores. Since simple learning did not produce results that could be used in the proposed system, we achieved significant results by changing the size of the mahjong tiles in the images to be learned, and the system is now able to calculate mahjong scores from the images of mahjong tiles.