Anchor-based crowd formation transformation

Crowd formation transformation is the process of controlling crowd movement under high constraints, which has received massive attention in recent years due to its ability to generate high-quality visual effects. It is challenging because of the complexity and the lack of evaluation standard. This study introduces an anchor-based crowd formation transformation control method that achieves highly controllable crowd movement by extracting anchors and optimizing a loss function based on anchor constraints. In addition, we propose a series of metrics to assist users in quantifying a segment of group motion. Some cases not considered in past work are designed to demonstrate the superiority of this method. With the help of proposed metrics, it could be found that in addition to being able to uniquely accomplish some tasks, our method also exhibits higher control over the crowd in other scenarios. Compared with methods of other research, our method has significant advantages in diversity and controllability of the generated results.