Endoscopic submucosal dissection (ESD) is a technique for endoscopic resection oflesions and is used in many cases, including gastrointestinal cancers. However, ESD training has the following problems Time and effort required for preparation and training, which can be a burden for busy doctor. In addition, there are cases in which the training is not integrated as part of the endoscopist's hospital duties, so there is a need to develop a proactive and easy system to enable busy doctors to continue ESD training on a daily basis. Therefore, in this study, we developed and verified an ESD training system that endoscopists can implement without spending time, resources, and money. The system consists of a game interface that can be operated in the same way as an endoscope and a game designed for ESD training. After the system was developed, two groups of doctors, one with extensive ESD experience and the other with limited ESD experience, were divided into two groups for the same validation. As a result, it was verified that the system allows training during free time in the office without time and effort for preparation, and that the gamification element of the system makes the training fun and continuous.

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Onojo City, situated in Fukuoka Prefecture, recently commemorated the 50th anniversary of its establishment as a municipality. In collaboration with Kyushu University, Onojo City organized a projection mapping event that spanned from late March to April 2023. For this project, the city hall served as the projection surface to highlight the city's milestone anniversary. The projection was tailored to suit an administrative facility characterized by a simple architecture and a restricted projection area. The narrative was created to integrate the rich history, traditions, and distinct local attributes of Onojo City. We aimed to achieve a practical visual presentation that could serve as a paradigm for future city promotional activities. Although the projection surface wall was stained, affecting the image quality, this issue was mitigated through the application of image processing techniques. We assessed the efficacy of projecting visual content onto structures located in non-tourist areas.

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