Fig. 1 (IMAGE) Osaka University Caption Overview of the proposed method. A 3D city model is automatically generated according to the specified parameters using procedural modeling, and annotation data and training images are generated from the 3D city model using a game engine and an image translation technique, respectively. Credit 2023 Takuya Kikuchi et al., Advanced Engineering Informatics Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.